Chamilo is a learning management system focused on ease of use and accessibility
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chamilo-lms/main/inc/lib/blog.lib.php

3306 lines
126 KiB

<?php
/* For licensing terms, see /license.txt */
/**
* Class Blog.
*
* Contains several functions dealing with displaying editing of a blog
*
* @author Toon Keppens <toon@vi-host.net>
* @author Julio Montoya - Cleaning code
*/
class Blog
{
/**
* Get the title of a blog.
*
* @author Toon Keppens
*
* @param int $blog_id The internal ID of the blog
*
* @return string Blog Title
*/
public static function getBlogTitle($blog_id)
{
$course_id = api_get_course_int_id();
if (is_numeric($blog_id)) {
$table = Database::get_course_table(TABLE_BLOGS);
$sql = "SELECT blog_name
FROM $table
WHERE c_id = $course_id AND blog_id = ".intval($blog_id);
$result = Database::query($sql);
$blog = Database::fetch_array($result);
return Security::remove_XSS(stripslashes($blog['blog_name']));
}
}
/**
* Get the description of a blog.
*
* @author Toon Keppens
*
* @param int $blog_id The internal ID of the blog
*
* @return string Blog description
*/
public static function getBlogSubtitle($blog_id)
{
$table = Database::get_course_table(TABLE_BLOGS);
$course_id = api_get_course_int_id();
$sql = "SELECT blog_subtitle FROM $table
WHERE c_id = $course_id AND blog_id ='".intval($blog_id)."'";
$result = Database::query($sql);
$blog = Database::fetch_array($result);
return Security::remove_XSS(stripslashes($blog['blog_subtitle']));
}
/**
* Get the users of a blog.
*
* @author Toon Keppens
*
* @param int $blog_id The ID of the blog
*
* @return array Returns an array with [userid]=>[username]
*/
public static function getBlogUsers($blog_id)
{
// Database table definitions
$tbl_users = Database::get_main_table(TABLE_MAIN_USER);
$tbl_blogs_rel_user = Database::get_course_table(TABLE_BLOGS_REL_USER);
$course_id = api_get_course_int_id();
// Get blog members
$sql = "SELECT user.user_id, user.firstname, user.lastname
FROM $tbl_blogs_rel_user blogs_rel_user
INNER JOIN $tbl_users user
ON (blogs_rel_user.user_id = user.user_id)
WHERE
blogs_rel_user.c_id = $course_id AND
blogs_rel_user.blog_id = '".(int) $blog_id."'";
$result = Database::query($sql);
$blog_members = [];
while ($user = Database::fetch_array($result)) {
$blog_members[$user['user_id']] = api_get_person_name(
$user['firstname'],
$user['lastname']
);
}
return $blog_members;
}
/**
* Creates a new blog in the given course.
*
* @author Toon Keppens
*
* @param string $title The title of the new blog
* @param string $subtitle The description (or subtitle) of the new blog
*/
public static function addBlog($title, $subtitle)
{
$_user = api_get_user_info();
$course_id = api_get_course_int_id();
$current_date = api_get_utc_datetime();
$session_id = api_get_session_id();
$tbl_blogs = Database::get_course_table(TABLE_BLOGS);
$tbl_tool = Database::get_course_table(TABLE_TOOL_LIST);
$tbl_blogs_posts = Database::get_course_table(TABLE_BLOGS_POSTS);
//verified if exist blog
$sql = "SELECT COUNT(*) as count FROM $tbl_blogs
WHERE
c_id = $course_id AND
blog_name = '".Database::escape_string($title)."' AND
blog_subtitle = '".Database::escape_string($subtitle)."' ";
$res = Database::query($sql);
$info_count = Database::result($res, 0, 0);
if (0 == $info_count) {
// Create the blog
$params = [
'blog_id' => 0,
'c_id' => $course_id,
'blog_name' => $title,
'blog_subtitle' => $subtitle,
'date_creation' => $current_date,
'visibility' => 1,
'session_id' => $session_id,
];
$this_blog_id = Database::insert($tbl_blogs, $params);
if ($this_blog_id > 0) {
$sql = "UPDATE $tbl_blogs SET blog_id = iid WHERE iid = $this_blog_id";
Database::query($sql);
// insert into item_property
api_item_property_update(
api_get_course_info(),
TOOL_BLOGS,
$this_blog_id,
'BlogAdded',
api_get_user_id()
);
}
// Make first post. :)
$params = [
'post_id' => 0,
'c_id' => $course_id,
'title' => get_lang("Welcome"),
'full_text' => get_lang('FirstPostText'),
'date_creation' => $current_date,
'blog_id' => $this_blog_id,
'author_id' => $_user['user_id'],
];
$postId = Database::insert($tbl_blogs_posts, $params);
if ($postId) {
$sql = "UPDATE $tbl_blogs_posts SET post_id = iid WHERE iid = $postId";
Database::query($sql);
}
// Put it on course homepage
$params = [
'c_id' => $course_id,
'name' => $title,
'link' => 'blog/blog.php?blog_id='.$this_blog_id,
'image' => 'blog.gif',
'visibility' => '1',
'admin' => '0',
'address' => 'pastillegris.gif',
'added_tool' => 0,
'session_id' => $session_id,
'target' => '',
];
$toolId = Database::insert($tbl_tool, $params);
if ($toolId) {
$sql = "UPDATE $tbl_tool SET id = iid WHERE iid = $toolId";
Database::query($sql);
}
// Subscribe the teacher to this blog
self::subscribeUser($this_blog_id, $_user['user_id']);
}
}
/**
* Subscribes a user to a given blog.
*
* @author Toon Keppens
*
* @param int $blog_id The internal blog ID
* @param int $user_id The internal user ID (of the user to be subscribed)
*/
public static function subscribeUser($blog_id, $user_id)
{
$tbl_blogs_rel_user = Database::get_course_table(TABLE_BLOGS_REL_USER);
$tbl_user_permissions = Database::get_course_table(TABLE_PERMISSION_USER);
$course_id = api_get_course_int_id();
$blog_id = intval($blog_id);
$user_id = intval($user_id);
// Subscribe the user
$sql = "INSERT INTO $tbl_blogs_rel_user (c_id, blog_id, user_id )
VALUES ($course_id, $blog_id, $user_id)";
Database::query($sql);
// Give this user basic rights
$sql = "INSERT INTO $tbl_user_permissions (c_id, user_id, tool, action)
VALUES ($course_id, $user_id, 'BLOG_$blog_id', 'article_add')";
Database::query($sql);
$id = Database::insert_id();
if ($id) {
$sql = "UPDATE $tbl_user_permissions SET id = iid WHERE iid = $id";
Database::query($sql);
}
$sql = "INSERT INTO $tbl_user_permissions (c_id, user_id, tool, action)
VALUES ($course_id, $user_id,'BLOG_$blog_id', 'article_comments_add')";
Database::query($sql);
$id = Database::insert_id();
if ($id) {
$sql = "UPDATE $tbl_user_permissions SET id = iid WHERE iid = $id";
Database::query($sql);
}
}
/**
* Update title and subtitle of a blog in the given course.
*
* @author Toon Keppens
*
* @param int $blog_id The internal ID of the blog
* @param string $title The title to be set
* @param string $subtitle The subtitle (or description) to be set
*/
public static function editBlog($blog_id, $title, $subtitle = '')
{
// Table definitions
$tbl_blogs = Database::get_course_table(TABLE_BLOGS);
$tbl_tool = Database::get_course_table(TABLE_TOOL_LIST);
$course_id = api_get_course_int_id();
$blog_id = intval($blog_id);
$title = Database::escape_string($title);
$subtitle = Database::escape_string($subtitle);
// Update the blog
$sql = "UPDATE $tbl_blogs SET
blog_name = '$title',
blog_subtitle = '$subtitle'
WHERE
c_id = $course_id AND
blog_id = $blog_id
LIMIT 1";
Database::query($sql);
//update item_property (update)
api_item_property_update(
api_get_course_info(),
TOOL_BLOGS,
$blog_id,
'BlogUpdated',
api_get_user_id()
);
// Update course homepage link
$sql = "UPDATE $tbl_tool SET
name = '$title'
WHERE c_id = $course_id AND link = 'blog/blog.php?blog_id=$blog_id'
LIMIT 1";
Database::query($sql);
}
/**
* Deletes a blog and it's posts from the course database.
*
* @author Toon Keppens
*
* @param int $blog_id The internal blog ID
*/
public static function deleteBlog($blog_id)
{
$tbl_blogs = Database::get_course_table(TABLE_BLOGS);
$tbl_blogs_posts = Database::get_course_table(TABLE_BLOGS_POSTS);
$tbl_blogs_comment = Database::get_course_table(TABLE_BLOGS_COMMENTS);
$tbl_blogs_tasks = Database::get_course_table(TABLE_BLOGS_TASKS);
$tbl_tool = Database::get_course_table(TABLE_TOOL_LIST);
$tbl_blogs_rating = Database::get_course_table(TABLE_BLOGS_RATING);
$course_id = api_get_course_int_id();
$blog_id = intval($blog_id);
// Delete posts from DB and the attachments
self::deleteAllBlogAttachments($blog_id);
//Delete comments
$sql = "DELETE FROM $tbl_blogs_comment WHERE c_id = $course_id AND blog_id = $blog_id";
Database::query($sql);
// Delete posts
$sql = "DELETE FROM $tbl_blogs_posts WHERE c_id = $course_id AND blog_id = $blog_id";
Database::query($sql);
// Delete tasks
$sql = "DELETE FROM $tbl_blogs_tasks WHERE c_id = $course_id AND blog_id = $blog_id";
Database::query($sql);
// Delete ratings
$sql = "DELETE FROM $tbl_blogs_rating WHERE c_id = $course_id AND blog_id = $blog_id";
Database::query($sql);
// Delete blog
$sql = "DELETE FROM $tbl_blogs WHERE c_id = $course_id AND blog_id = $blog_id";
Database::query($sql);
// Delete from course homepage
$sql = "DELETE FROM $tbl_tool WHERE c_id = $course_id AND link = 'blog/blog.php?blog_id=".$blog_id."'";
Database::query($sql);
//update item_property (delete)
api_item_property_update(
api_get_course_info(),
TOOL_BLOGS,
$blog_id,
'delete',
api_get_user_id()
);
}
/**
* Creates a new post in a given blog.
*
* @author Toon Keppens
*
* @param string $title The title of the new post
* @param string $full_text The full text of the new post
* @param string $file_comment The text of the comment (if any)
* @param int $blog_id The internal blog ID
*
* @return int
*/
public static function createPost($title, $full_text, $file_comment, $blog_id)
{
$_user = api_get_user_info();
$_course = api_get_course_info();
$course_id = $_course['real_id'];
$blog_id = intval($blog_id);
$blog_table_attachment = Database::get_course_table(TABLE_BLOGS_ATTACHMENT);
$upload_ok = true;
$has_attachment = false;
$current_date = api_get_utc_datetime();
if (!empty($_FILES['user_upload']['name'])) {
$upload_ok = process_uploaded_file($_FILES['user_upload']);
$has_attachment = true;
}
if ($upload_ok) {
// Table Definitions
$tbl_blogs_posts = Database::get_course_table(TABLE_BLOGS_POSTS);
$title = Database::escape_string($title);
$full_text = Database::escape_string($full_text);
// Create the post
$sql = "INSERT INTO $tbl_blogs_posts (c_id, title, full_text, date_creation, blog_id, author_id )
VALUES ($course_id, '$title', '$full_text', '$current_date', '$blog_id', ".$_user['user_id'].")";
Database::query($sql);
$last_post_id = Database::insert_id();
if ($last_post_id) {
$sql = "UPDATE $tbl_blogs_posts SET post_id = iid WHERE iid = $last_post_id";
Database::query($sql);
}
if ($has_attachment) {
$courseDir = $_course['path'].'/upload/blog';
$sys_course_path = api_get_path(SYS_COURSE_PATH);
$updir = $sys_course_path.$courseDir;
// Try to add an extension to the file if it hasn't one
$new_file_name = add_ext_on_mime(
stripslashes($_FILES['user_upload']['name']),
$_FILES['user_upload']['type']
);
// user's file name
$file_name = $_FILES['user_upload']['name'];
if (!filter_extension($new_file_name)) {
echo Display::return_message(get_lang('UplUnableToSaveFileFilteredExtension'), 'error');
} else {
$new_file_name = uniqid('');
$new_path = $updir.'/'.$new_file_name;
$result = @move_uploaded_file($_FILES['user_upload']['tmp_name'], $new_path);
$comment = Database::escape_string($file_comment);
$file_name = Database::escape_string($file_name);
$size = intval($_FILES['user_upload']['size']);
// Storing the attachments if any
if ($result) {
$sql = "INSERT INTO $blog_table_attachment (c_id, filename,comment, path, post_id,size, blog_id,comment_id)
VALUES ($course_id, '$file_name', '$comment', '$new_file_name', $last_post_id, $size, $blog_id, 0)";
Database::query($sql);
$id = Database::insert_id();
if ($id) {
$sql = "UPDATE $blog_table_attachment SET id = iid WHERE iid = $id";
Database::query($sql);
}
}
}
}
return $last_post_id;
} else {
echo Display::return_message(get_lang('UplNoFileUploaded'), 'error');
return 0;
}
}
/**
* Edits a post in a given blog.
*
* @author Toon Keppens
*
* @param int $post_id The internal ID of the post to edit
* @param string $title The title
* @param string $full_text The full post text
* @param int $blog_id The internal ID of the blog in which the post is located
*/
public static function editPost($post_id, $title, $full_text, $blog_id)
{
$table = Database::get_course_table(TABLE_BLOGS_POSTS);
$course_id = api_get_course_int_id();
$title = Database::escape_string($title);
$full_text = Database::escape_string($full_text);
$post_id = intval($post_id);
$blog_id = intval($blog_id);
// Create the post
$sql = "UPDATE $table SET
title = '$title',
full_text = '$full_text'
WHERE c_id = $course_id AND post_id = $post_id AND blog_id = $blog_id
LIMIT 1";
Database::query($sql);
}
/**
* Deletes an article and its comments.
*
* @author Toon Keppens
*
* @param int $blog_id The internal blog ID
* @param int $post_id The internal post ID
*/
public static function deletePost($blog_id, $post_id)
{
$tbl_blogs_posts = Database::get_course_table(TABLE_BLOGS_POSTS);
$tbl_blogs_comments = Database::get_course_table(TABLE_BLOGS_COMMENTS);
$tbl_blogs_rating = Database::get_course_table(TABLE_BLOGS_RATING);
$blog_id = intval($blog_id);
$post_id = intval($post_id);
$course_id = api_get_course_int_id();
// Delete ratings on this comment
$sql = "DELETE FROM $tbl_blogs_rating
WHERE c_id = $course_id AND blog_id = $blog_id AND item_id = $post_id AND rating_type = 'post'";
Database::query($sql);
// Delete the post
$sql = "DELETE FROM $tbl_blogs_posts
WHERE c_id = $course_id AND post_id = $post_id";
Database::query($sql);
// Delete the comments
$sql = "DELETE FROM $tbl_blogs_comments
WHERE c_id = $course_id AND post_id = $post_id AND blog_id = $blog_id";
Database::query($sql);
// Delete posts and attachments
self::deleteAllBlogAttachments($blog_id, $post_id);
}
/**
* Creates a comment on a post in a given blog.
*
* @author Toon Keppens
*
* @param string $title The comment title
* @param string $full_text The full text of the comment
* @param string $file_comment A comment on a file, if any was uploaded
* @param int $blog_id The internal blog ID
* @param int $post_id The internal post ID
* @param int $parent_id The internal parent post ID
* @param int $task_id The internal task ID (if any)
*/
public static function createComment(
$title,
$full_text,
$file_comment,
$blog_id,
$post_id,
$parent_id,
$task_id = null
) {
$_user = api_get_user_info();
$_course = api_get_course_info();
$blog_table_attachment = Database::get_course_table(TABLE_BLOGS_ATTACHMENT);
$upload_ok = true;
$has_attachment = false;
$current_date = api_get_utc_datetime();
$course_id = api_get_course_int_id();
if (!empty($_FILES['user_upload']['name'])) {
$upload_ok = process_uploaded_file($_FILES['user_upload']);
$has_attachment = true;
}
if ($upload_ok) {
// Table Definition
$tbl_blogs_comments = Database::get_course_table(TABLE_BLOGS_COMMENTS);
$title = Database::escape_string($title);
$full_text = Database::escape_string($full_text);
$blog_id = intval($blog_id);
$post_id = intval($post_id);
$parent_id = intval($parent_id);
$task_id = !empty($task_id) ? intval($task_id) : 'null';
// Create the comment
$sql = "INSERT INTO $tbl_blogs_comments (c_id, title, comment, author_id, date_creation, blog_id, post_id, parent_comment_id, task_id )
VALUES ($course_id, '$title', '$full_text', ".$_user['user_id'].", '$current_date', $blog_id, $post_id, $parent_id, '$task_id')";
Database::query($sql);
// Empty post values, or they are shown on the page again
$last_id = Database::insert_id();
if ($last_id) {
$sql = "UPDATE $tbl_blogs_comments SET comment_id = iid WHERE iid = $last_id";
Database::query($sql);
if ($has_attachment) {
$courseDir = $_course['path'].'/upload/blog';
$sys_course_path = api_get_path(SYS_COURSE_PATH);
$updir = $sys_course_path.$courseDir;
// Try to add an extension to the file if it hasn't one
$new_file_name = add_ext_on_mime(
stripslashes($_FILES['user_upload']['name']),
$_FILES['user_upload']['type']
);
// user's file name
$file_name = Database::escape_string($_FILES['user_upload']['name']);
if (!filter_extension($new_file_name)) {
echo Display::return_message(get_lang('UplUnableToSaveFileFilteredExtension'), 'error');
} else {
$new_file_name = uniqid('');
$new_path = $updir.'/'.$new_file_name;
$result = @move_uploaded_file($_FILES['user_upload']['tmp_name'], $new_path);
$comment = Database::escape_string($file_comment);
$size = intval($_FILES['user_upload']['size']);
// Storing the attachments if any
if ($result) {
$sql = "INSERT INTO $blog_table_attachment (c_id, filename,comment, path, post_id,size,blog_id,comment_id)
VALUES ($course_id, '$file_name', '$comment', '$new_file_name', $post_id, $size, $blog_id, $last_id)";
Database::query($sql);
$id = Database::insert_id();
if ($id) {
$sql = "UPDATE $blog_table_attachment SET id = iid WHERE iid = $id";
Database::query($sql);
}
}
}
}
}
}
}
/**
* Deletes a comment from a blogpost.
*
* @author Toon Keppens
*
* @param int $blog_id The internal blog ID
* @param int $post_id The internal post ID
* @param int $comment_id The internal comment ID
*/
public static function deleteComment($blog_id, $post_id, $comment_id)
{
$tbl_blogs_comments = Database::get_course_table(TABLE_BLOGS_COMMENTS);
$tbl_blogs_rating = Database::get_course_table(TABLE_BLOGS_RATING);
$blog_id = intval($blog_id);
$post_id = intval($post_id);
$comment_id = intval($comment_id);
$course_id = api_get_course_int_id();
self::deleteAllBlogAttachments($blog_id, $post_id, $comment_id);
// Delete ratings on this comment
$sql = "DELETE FROM $tbl_blogs_rating
WHERE
c_id = $course_id AND
blog_id = $blog_id AND
item_id = $comment_id AND
rating_type = 'comment'";
Database::query($sql);
// select comments that have the selected comment as their parent
$sql = "SELECT comment_id FROM $tbl_blogs_comments
WHERE c_id = $course_id AND parent_comment_id = $comment_id";
$result = Database::query($sql);
// Delete them recursively
while ($comment = Database::fetch_array($result)) {
self::deleteComment($blog_id, $post_id, $comment['comment_id']);
}
// Finally, delete the selected comment to
$sql = "DELETE FROM $tbl_blogs_comments
WHERE c_id = $course_id AND comment_id = $comment_id";
Database::query($sql);
}
/**
* Creates a new task in a blog.
*
* @author Toon Keppens
*
* @param int $blog_id
* @param string $title
* @param string $description
* @param string $articleDelete Set to 'on' to register as 'article_delete' in tasks_permissions
* @param string $articleEdit Set to 'on' to register as 'article_edit' in tasks_permissions
* @param string $commentsDelete Set to 'on' to register as 'article_comments_delete' in tasks permissions
* @param string $color
*/
public static function addTask(
$blog_id,
$title,
$description,
$articleDelete,
$articleEdit,
$commentsDelete,
$color
) {
$tbl_blogs_tasks = Database::get_course_table(TABLE_BLOGS_TASKS);
$tbl_tasks_permissions = Database::get_course_table(TABLE_BLOGS_TASKS_PERMISSIONS);
$course_id = api_get_course_int_id();
$blog_id = intval($blog_id);
$title = Database::escape_string($title);
$description = Database::escape_string($description);
$color = Database::escape_string($color);
// Create the task
$sql = "INSERT INTO $tbl_blogs_tasks (c_id, blog_id, title, description, color, system_task)
VALUES ($course_id , $blog_id, '$title', '$description', '$color', '0');";
Database::query($sql);
$task_id = Database::insert_id();
if ($task_id) {
$sql = "UPDATE $tbl_blogs_tasks SET task_id = iid WHERE iid = $task_id";
Database::query($sql);
}
$tool = 'BLOG_'.$blog_id;
if ('on' == $articleDelete) {
$sql = "INSERT INTO $tbl_tasks_permissions ( c_id, task_id, tool, action)
VALUES ($course_id, $task_id, '$tool', 'article_delete')";
Database::query($sql);
$id = Database::insert_id();
if ($id) {
$sql = "UPDATE $tbl_tasks_permissions SET id = iid WHERE iid = $id";
Database::query($sql);
}
}
if ('on' == $articleEdit) {
$sql = "
INSERT INTO $tbl_tasks_permissions (c_id, task_id, tool, action )
VALUES ($course_id, $task_id, '$tool', 'article_edit')";
Database::query($sql);
$id = Database::insert_id();
if ($id) {
$sql = "UPDATE $tbl_tasks_permissions SET id = iid WHERE iid = $id";
Database::query($sql);
}
}
if ('on' == $commentsDelete) {
$sql = "
INSERT INTO $tbl_tasks_permissions (c_id, task_id, tool, action )
VALUES ($course_id, $task_id, '$tool', 'article_comments_delete')";
Database::query($sql);
$id = Database::insert_id();
if ($id) {
$sql = "UPDATE $tbl_tasks_permissions SET id = iid WHERE iid = $id";
Database::query($sql);
}
}
}
/**
* Edit a task in a blog.
*
* @author Toon Keppens
*
* @param int $blog_id The internal blog ID
* @param int $task_id The internal task ID
* @param string $title The task title
* @param string $description The task description
* @param string $articleDelete Set to 'on' to register as 'article_delete' in tasks_permissions
* @param string $articleEdit Set to 'on' to register as 'article_edit' in tasks_permissions
* @param string $commentsDelete Set to 'on' to register as 'article_comments_delete' in tasks permissions
* @param string $color The color code
*/
public static function editTask(
$blog_id,
$task_id,
$title,
$description,
$articleDelete,
$articleEdit,
$commentsDelete,
$color
) {
$tbl_blogs_tasks = Database::get_course_table(TABLE_BLOGS_TASKS);
$tbl_tasks_permissions = Database::get_course_table(TABLE_BLOGS_TASKS_PERMISSIONS);
$course_id = api_get_course_int_id();
$blog_id = intval($blog_id);
$task_id = intval($task_id);
$title = Database::escape_string($title);
$description = Database::escape_string($description);
$color = Database::escape_string($color);
// Create the task
$sql = "UPDATE $tbl_blogs_tasks SET
title = '$title',
description = '$description',
color = '$color'
WHERE c_id = $course_id AND task_id = task_id LIMIT 1";
Database::query($sql);
$tool = 'BLOG_'.$blog_id;
$sql = "DELETE FROM $tbl_tasks_permissions
WHERE c_id = $course_id AND task_id = $task_id";
Database::query($sql);
if ($articleDelete == 'on') {
$sql = "INSERT INTO $tbl_tasks_permissions ( c_id, task_id, tool, action)
VALUES ($course_id, $task_id, '$tool', 'article_delete')";
Database::query($sql);
$id = Database::insert_id();
if ($id) {
$sql = "UPDATE $tbl_tasks_permissions SET id = iid WHERE iid = $id";
Database::query($sql);
}
}
if ($articleEdit == 'on') {
$sql = "INSERT INTO $tbl_tasks_permissions (c_id, task_id, tool, action)
VALUES ($course_id, $task_id, '$tool', 'article_edit')";
Database::query($sql);
$id = Database::insert_id();
if ($id) {
$sql = "UPDATE $tbl_tasks_permissions SET id = iid WHERE iid = $id";
Database::query($sql);
}
}
if ($commentsDelete == 'on') {
$sql = "INSERT INTO $tbl_tasks_permissions (c_id, task_id, tool, action)
VALUES ($course_id, $task_id, '$tool', 'article_comments_delete')";
Database::query($sql);
$id = Database::insert_id();
if ($id) {
$sql = "UPDATE $tbl_tasks_permissions SET id = iid WHERE iid = $id";
Database::query($sql);
}
}
}
/**
* Deletes a task from a blog.
*
* @param int $blog_id
* @param int $task_id
*/
public static function deleteTask($blog_id, $task_id)
{
$table = Database::get_course_table(TABLE_BLOGS_TASKS);
$course_id = api_get_course_int_id();
$blog_id = intval($blog_id);
$task_id = intval($task_id);
// Delete posts
$sql = "DELETE FROM $table
WHERE c_id = $course_id AND blog_id = $blog_id AND task_id = $task_id";
Database::query($sql);
}
/**
* Deletes an assigned task from a blog.
*
* @param int $blog_id
* @param int $task_id
* @param int $user_id
*/
public static function deleteAssignedTask($blog_id, $task_id, $user_id)
{
$table = Database::get_course_table(TABLE_BLOGS_TASKS_REL_USER);
$course_id = api_get_course_int_id();
$blog_id = intval($blog_id);
$task_id = intval($task_id);
$user_id = intval($user_id);
// Delete posts
$sql = "DELETE FROM $table
WHERE
c_id = $course_id AND
blog_id = $blog_id AND
task_id = $task_id AND
user_id = $user_id";
Database::query($sql);
}
/**
* Get personal task list.
*
* @author Toon Keppens
*
* @return string Returns an unsorted list (<ul></ul>) with the users' tasks
*/
public static function getPersonalTasksList()
{
$_user = api_get_user_info();
$html = null;
$tbl_blogs = Database::get_course_table(TABLE_BLOGS);
$tbl_blogs_tasks_rel_user = Database::get_course_table(TABLE_BLOGS_TASKS_REL_USER);
$tbl_blogs_tasks = Database::get_course_table(TABLE_BLOGS_TASKS);
$course_id = api_get_course_int_id();
$blog_id = intval($_GET['blog_id']);
$cidReq = api_get_cidreq();
if ($_user['user_id']) {
$sql = "SELECT task_rel_user.*, task.title, blog.blog_name
FROM $tbl_blogs_tasks_rel_user task_rel_user
INNER JOIN $tbl_blogs_tasks task
ON task_rel_user.task_id = task.task_id
INNER JOIN $tbl_blogs blog
ON task_rel_user.blog_id = blog.blog_id
AND blog.blog_id = $blog_id
WHERE
task.c_id = $course_id AND
blog.c_id = $course_id AND
task_rel_user.c_id = $course_id AND
task_rel_user.user_id = ".$_user['user_id']."
ORDER BY target_date ASC";
$result = Database::query($sql);
$url = api_get_path(WEB_CODE_PATH).'blog/blog.php?'.$cidReq.'&action=execute_task';
if (Database::num_rows($result) > 0) {
$html .= '<ul>';
while ($mytask = Database::fetch_array($result)) {
$html .= '<li>
<a
href="'.$url.'&blog_id='.$mytask['blog_id'].'&task_id='.intval($mytask['task_id']).'"
title="[Blog: '.stripslashes($mytask['blog_name']).'] '.
get_lang('ExecuteThisTask').'">'.
stripslashes($mytask['title']).'</a></li>';
}
$html .= '<ul>';
} else {
$html .= get_lang('NoTasks');
}
} else {
$html .= get_lang('NoTasks');
}
return $html;
}
/**
* Changes the visibility of a blog.
*
* @author Toon Keppens
*
* @param int $blog_id
*/
public static function changeBlogVisibility($blog_id)
{
$tbl_blogs = Database::get_course_table(TABLE_BLOGS);
$tbl_tool = Database::get_course_table(TABLE_TOOL_LIST);
$course_id = api_get_course_int_id();
// Get blog properties
$sql = "SELECT blog_name, visibility FROM $tbl_blogs
WHERE c_id = $course_id AND blog_id='".(int) $blog_id."'";
$result = Database::query($sql);
$blog = Database::fetch_array($result);
$visibility = $blog['visibility'];
$title = $blog['blog_name'];
if ($visibility == 1) {
// Change visibility state, remove from course home.
$sql = "UPDATE $tbl_blogs SET visibility = '0'
WHERE c_id = $course_id AND blog_id ='".(int) $blog_id."' LIMIT 1";
Database::query($sql);
$sql = "DELETE FROM $tbl_tool
WHERE c_id = $course_id AND name = '".Database::escape_string($title)."'
LIMIT 1";
Database::query($sql);
} else {
// Change visibility state, add to course home.
$sql = "UPDATE $tbl_blogs SET visibility = '1'
WHERE c_id = $course_id AND blog_id ='".(int) $blog_id."' LIMIT 1";
Database::query($sql);
$sql = "INSERT INTO $tbl_tool (c_id, name, link, image, visibility, admin, address, added_tool, target)
VALUES ($course_id, '".Database::escape_string($title)."', 'blog/blog.php?blog_id=".(int) $blog_id."', 'blog.gif', '1', '0', 'pastillegris.gif', '0', '_self')";
Database::query($sql);
$id = Database::insert_id();
if ($id) {
$sql = "UPDATE $tbl_tool SET id = iid WHERE iid = $id";
Database::query($sql);
}
}
}
/**
* Display the search results.
*
* @param int $blog_id
* @param string $query_string
*
* @return string|array
*/
public static function getSearchResults($blog_id, $query_string)
{
$query_string_parts = explode(' ', $query_string);
$query_string = [];
foreach ($query_string_parts as $query_part) {
$query_part = Database::escape_string($query_part);
$query_string[] = " full_text LIKE '%".$query_part."%' OR title LIKE '%".$query_part."%' ";
}
$query_string = '('.implode('OR', $query_string).')';
// Display the posts
return self::getPosts($blog_id, $query_string);
}
/**
* Shows the posts of a blog.
*
* @author Toon Keppens
*
* @param int $blog_id
* @param string $filter
* @param int $max_number_of_posts
*
* @return string|array
*/
public static function getPosts($blog_id, $filter = '1=1', $max_number_of_posts = 20)
{
$tbl_blogs_posts = Database::get_course_table(TABLE_BLOGS_POSTS);
$tbl_blogs_comments = Database::get_course_table(TABLE_BLOGS_COMMENTS);
$tbl_users = Database::get_main_table(TABLE_MAIN_USER);
$course_id = api_get_course_int_id();
$blog_id = intval($blog_id);
$max_number_of_posts = intval($max_number_of_posts);
// Get posts and authors
$sql = "SELECT post.*, user.lastname, user.firstname, user.username
FROM $tbl_blogs_posts post
INNER JOIN $tbl_users user
ON post.author_id = user.user_id
WHERE
post.blog_id = $blog_id AND
post.c_id = $course_id AND
$filter
ORDER BY post_id DESC
LIMIT 0, $max_number_of_posts";
$result = Database::query($sql);
// Display
if (Database::num_rows($result) > 0) {
$limit = 200;
$listArticle = [];
while ($blog_post = Database::fetch_array($result)) {
// Get number of comments
$sql = "SELECT COUNT(1) as number_of_comments
FROM $tbl_blogs_comments
WHERE
c_id = $course_id AND
blog_id = $blog_id AND
post_id = ".$blog_post['post_id'];
$tmp = Database::query($sql);
$blog_post_comments = Database::fetch_array($tmp);
$fileArray = self::getBlogAttachments($blog_id, $blog_post['post_id'], 0);
$scoreRanking = self::displayRating(
'post',
$blog_id,
$blog_post['post_id']
);
// Prepare data
$article = [
'id_blog' => $blog_post['blog_id'],
'c_id' => $blog_post['c_id'],
'id_post' => $blog_post['post_id'],
'id_autor' => $blog_post['author_id'],
'autor' => $blog_post['firstname'].' '.$blog_post['lastname'],
'username' => $blog_post['username'],
'title' => Security::remove_XSS($blog_post['title']),
'extract' => self::getPostExtract($blog_post['full_text'], BLOG_MAX_PREVIEW_CHARS),
'content' => Security::remove_XSS($blog_post['full_text']),
'post_date' => Display::dateToStringAgoAndLongDate($blog_post['date_creation']),
'n_comments' => $blog_post_comments['number_of_comments'],
'files' => $fileArray,
'score_ranking' => $scoreRanking,
];
$listArticle[] = $article;
}
return $listArticle;
} else {
if ($filter == '1=1') {
return get_lang('NoArticles');
} else {
return get_lang('NoArticleMatches');
}
}
}
/**
* Display posts from a certain date.
*
* @param int $blog_id
* @param string $query_string
*
* @return string|array
*/
public static function getDailyResults($blog_id, $query_string)
{
$date = explode('-', $query_string);
$query_string = '
DAYOFMONTH(date_creation) ='.intval($date[2]).' AND
MONTH(date_creation) ='.intval($date[1]).' AND
YEAR(date_creation) ='.intval($date[0]);
$list = self::getPosts($blog_id, $query_string);
return $list;
}
/**
* Displays a post and his comments.
*
* @param int $blog_id
* @param int $post_id
*
* @return array
*/
public static function getSinglePost($blog_id, $post_id)
{
$tbl_blogs_posts = Database::get_course_table(TABLE_BLOGS_POSTS);
$tbl_blogs_comments = Database::get_course_table(TABLE_BLOGS_COMMENTS);
$tbl_users = Database::get_main_table(TABLE_MAIN_USER);
$listComments = null;
global $charset;
$course_id = api_get_course_int_id();
$blog_id = intval($blog_id);
$post_id = intval($post_id);
// Get posts and author
$sql = "SELECT post.*, user.lastname, user.firstname, user.username
FROM $tbl_blogs_posts post
INNER JOIN $tbl_users user
ON post.author_id = user.user_id
WHERE
post.c_id = $course_id AND
post.blog_id = $blog_id AND
post.post_id = $post_id
ORDER BY post_id DESC";
$result = Database::query($sql);
$blog_post = Database::fetch_array($result);
// Get number of comments
$sql = "SELECT COUNT(1) as number_of_comments
FROM $tbl_blogs_comments
WHERE c_id = $course_id AND blog_id = $blog_id AND post_id = $post_id";
$result = Database::query($sql);
$blog_post_comments = Database::fetch_array($result);
$blogActions = null;
$task_id = (isset($_GET['task_id']) && is_numeric($_GET['task_id'])) ? intval($_GET['task_id']) : 0;
// Display comments if there are any
if ($blog_post_comments['number_of_comments'] > 0) {
$listComments = self::getThreadedComments(0, 0, $blog_id, $post_id, $task_id);
}
// Display comment form
if (api_is_allowed('BLOG_'.$blog_id, 'article_comments_add')) {
$formComments = self::displayCommentCreateForm($blog_id, $post_id, $blog_post['title'], false);
}
// Prepare data
$fileArray = self::getBlogAttachments($blog_id, $post_id);
$post_text = make_clickable(stripslashes($blog_post['full_text']));
$post_text = stripslashes($post_text);
$blogUrl = api_get_path(WEB_CODE_PATH).'blog/blog.php?blog_id='.$blog_id.
'&post_id='.$post_id.'&article_id='.$blog_post['post_id'].'&task_id='.$task_id.'&'.api_get_cidreq();
if (api_is_allowed('BLOG_'.$blog_id, 'article_edit', $task_id)) {
$blogActions .= '<a
class="btn btn-default"
href="'.$blogUrl.'&action=edit_post"
title="'.get_lang('EditThisPost').'">';
$blogActions .= Display::return_icon('edit.png', get_lang('Edit'), null, ICON_SIZE_TINY);
$blogActions .= '</a>';
}
if (api_is_allowed('BLOG_'.$blog_id, 'article_delete', $task_id)) {
$blogActions .= '<a
class="btn btn-default"
href="'.$blogUrl.'&action=view_post&do=delete_article"
title="'.get_lang(
'DeleteThisArticle'
).'" onclick="javascript:if(!confirm(\''.addslashes(
api_htmlentities(get_lang("ConfirmYourChoice"), ENT_QUOTES, $charset)
).'\')) return false;">';
$blogActions .= Display::return_icon(
'delete.png',
get_lang('Delete'),
null,
ICON_SIZE_TINY
);
$blogActions .= '</a>';
}
$scoreRanking = self::displayRating('post', $blog_id, $post_id);
$article = [
'id_blog' => $blog_post['blog_id'],
'c_id' => $blog_post['c_id'],
'id_post' => $blog_post['post_id'],
'id_author' => $blog_post['author_id'],
'author' => $blog_post['firstname'].' '.$blog_post['lastname'],
'username' => $blog_post['username'],
'title' => Security::remove_XSS($blog_post['title']),
'extract' => api_get_short_text_from_html(
Security::remove_XSS($blog_post['full_text']),
400
),
'content' => $post_text,
'post_date' => Display::dateToStringAgoAndLongDate($blog_post['date_creation']),
'n_comments' => $blog_post_comments['number_of_comments'],
'files' => $fileArray,
'id_task' => $task_id,
'comments' => $listComments,
'form_html' => $formComments,
'actions' => $blogActions,
'score_ranking' => (int) $scoreRanking,
'frm_rating' => api_is_allowed('BLOG_'.$blog_id, 'article_rate')
? self::displayRatingCreateForm('post', $blog_id, $post_id)
: null,
];
return $article;
}
/**
* This functions gets all replies to a post, threaded.
*
* @param int $current
* @param int $current_level
* @param int $blog_id
* @param int $post_id
* @param int $task_id
*
* @return array
*/
public static function getThreadedComments(
$current,
$current_level,
$blog_id,
$post_id,
$task_id = 0
) {
$tbl_blogs_comments = Database::get_course_table(TABLE_BLOGS_COMMENTS);
$tbl_users = Database::get_main_table(TABLE_MAIN_USER);
$tbl_blogs_tasks = Database::get_course_table(TABLE_BLOGS_TASKS);
$charset = api_get_system_encoding();
$course_id = api_get_course_int_id();
$blog_id = intval($blog_id);
$post_id = intval($post_id);
$task_id = intval($task_id);
$listComments = [];
// Select top level comments
$next_level = $current_level + 1;
$sql = "SELECT comments.*, user.lastname, user.firstname, user.username, task.color
FROM $tbl_blogs_comments comments
INNER JOIN $tbl_users user
ON comments.author_id = user.user_id
LEFT JOIN $tbl_blogs_tasks task
ON comments.task_id = task.task_id AND task.c_id = $course_id
WHERE
comments.c_id = $course_id AND
parent_comment_id = $current AND
comments.blog_id = $blog_id AND
comments.post_id = $post_id";
$result = Database::query($sql);
$html = null;
$cidReq = api_get_cidreq();
while ($comment = Database::fetch_array($result)) {
$commentActions = null;
$ratingSelect = null;
$comment_text = make_clickable(stripslashes($comment['comment']));
$comment_text = Security::remove_XSS($comment_text);
$commentActions .= Display::toolbarButton(
get_lang('ReplyToThisComment'),
'#',
'reply',
'default',
['data-id' => $comment['iid'], 'role' => 'button', 'class' => 'btn-reply-to'],
false
);
if (api_is_allowed('BLOG_'.$blog_id, 'article_comments_delete', $task_id)) {
$commentActions .= ' <a
class="btn btn-default"
href="blog.php?'.$cidReq.'&action=view_post&blog_id='.$blog_id.'&post_id='.$post_id.'&do=delete_comment&comment_id='.$comment['comment_id'].'&task_id='.$task_id.'"
title="'.get_lang(
'DeleteThisComment'
).'" onclick="javascript:if(!confirm(\''.addslashes(
api_htmlentities(get_lang("ConfirmYourChoice"), ENT_QUOTES, $charset)
).'\')) return false;">';
$commentActions .= Display::returnFontAwesomeIcon('trash');
$commentActions .= '</a>';
}
if (api_is_allowed('BLOG_'.$blog_id, 'article_comments_rate')) {
$ratingSelect = self::displayRatingCreateForm(
'comment',
$blog_id,
$post_id,
$comment['comment_id']
);
}
$scoreRanking = self::displayRating(
'comment',
$blog_id,
$comment['comment_id']
);
// Files
$fileArray = self::getBlogAttachments(
$blog_id,
$post_id,
$comment['comment_id']
);
$userInfo = api_get_user_info($comment['author_id']);
$comments = [
'iid' => $comment['iid'],
'id_comment' => $comment['comment_id'],
'id_curso' => $comment['c_id'],
'title' => Security::remove_XSS($comment['title']),
'content' => $comment_text,
'id_author' => $comment['author_id'],
'comment_date' => Display::dateToStringAgoAndLongDate($comment['date_creation']),
'id_blog' => $comment['blog_id'],
'id_post' => $comment['post_id'],
'id_task' => $comment['task_id'],
'id_parent' => $comment['parent_comment_id'],
'user_info' => $userInfo,
'color' => $comment['color'],
'files' => $fileArray,
'actions' => $commentActions,
'form_ranking' => $ratingSelect,
'score_ranking' => $scoreRanking,
'comments' => self::getThreadedComments(
$comment['iid'],
$next_level,
$blog_id,
$post_id
),
];
$listComments[] = $comments;
}
return $listComments;
}
/**
* Shows the rating form if not already rated by that user.
*
* @author Toon Keppens
*
* @param string $type
* @param int $blog_id
* @param int $post_id
* @param int $comment_id
*
* @return string
*/
public static function displayRatingCreateForm($type, $blog_id, $post_id, $comment_id = null)
{
$_user = api_get_user_info();
$tbl_blogs_rating = Database::get_course_table(TABLE_BLOGS_RATING);
$course_id = api_get_course_int_id();
$blog_id = intval($blog_id);
$post_id = intval($post_id);
$comment_id = isset($comment_id) ? intval($comment_id) : null;
$type = Database::escape_string($type);
$html = null;
if ($type === 'post') {
// Check if the user has already rated this post
$sql = "SELECT rating_id FROM $tbl_blogs_rating
WHERE c_id = $course_id AND
blog_id = $blog_id
AND item_id = $post_id
AND rating_type = '$type'
AND user_id = ".$_user['user_id'];
$result = Database::query($sql);
// Add rating
$url = api_get_path(WEB_CODE_PATH).'blog/blog.php?'.api_get_cidreq();
if (Database::num_rows($result) == 0) {
$html .= '<form
class="form-horizontal"
method="get"
action="'.$url.'"
id="frm_rating_'.$type.'_'.$post_id.'"
name="frm_rating_'.$type.'_'.$post_id.'">';
$html .= '<div class="form-group">';
$html .= '<label class="col-sm-3 control-label">'.get_lang('RateThis').'</label>';
$html .= '<div class="col-sm-9">';
$html .= '<select
class="selectpicker"
name="rating"
onchange="document.forms[\'frm_rating_'.$type.'_'.$post_id.'\'].submit()">
<option value="">-</option>
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
<option value="6">6</option>
<option value="7">7</option>
<option value="8">8</option>
<option value="9">9</option>
<option value="10">10</option>
</select>
<input type="hidden" name="action" value="view_post" />
<input type="hidden" name="type" value="'.$type.'" />
<input type="hidden" name="do" value="rate" />
<input type="hidden" name="blog_id" value="'.$blog_id.'" />
<input type="hidden" name="post_id" value="'.$post_id.'" />';
$html .= '</div>';
$html .= '</div>';
$html .= '</form>';
return $html;
} else {
return '';
}
}
if ($type = 'comment') {
// Check if the user has already rated this comment
$sql = "SELECT rating_id FROM $tbl_blogs_rating
WHERE c_id = $course_id AND blog_id = $blog_id
AND item_id = $comment_id
AND rating_type = '$type'
AND user_id = ".$_user['user_id'];
$result = Database::query($sql);
$url = api_get_path(WEB_CODE_PATH).'blog/blog.php?'.api_get_cidreq();
if (Database::num_rows($result) == 0) {
$html .= '<form
class="form-horizontal"
method="get"
action="'.$url.'"
id="frm_rating_'.$type.'_'.$comment_id.'" name="frm_rating_'.$type.'_'.$comment_id.'">';
$html .= '<div class="form-group">';
$html .= '<label class="col-sm-3 control-label">'.get_lang('RateThis').'</label>';
$html .= '<div class="col-sm-9">';
$html .= '<select
class="selectpicker"
name="rating"
onchange="document.forms[\'frm_rating_'.$type.'_'.$comment_id.'\'].submit()">';
$html .= '<option value="">-</option>
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
<option value="6">6</option>
<option value="7">7</option>
<option value="8">8</option>
<option value="9">9</option>
<option value="10">10</option>
</select>
<input type="hidden" name="action" value="view_post" />
<input type="hidden" name="type" value="'.$type.'" />
<input type="hidden" name="do" value="rate" />
<input type="hidden" name="blog_id" value="'.$blog_id.'" />
<input type="hidden" name="post_id" value="'.$post_id.'" />
<input type="hidden" name="comment_id" value="'.$comment_id.'" />';
$html .= '</div>';
$html .= '</div>';
$html .= '</form>';
return $html;
} else {
return '';
}
}
}
/**
* Shows the rating of user.
*
* @param string $type
* @param int $blog_id
* @param int $item_id
*
* @return float
*/
public static function displayRating($type, $blog_id, $item_id)
{
$table = Database::get_course_table(TABLE_BLOGS_RATING);
$course_id = api_get_course_int_id();
$blog_id = intval($blog_id);
$item_id = intval($item_id);
$type = Database::escape_string($type);
// Calculate rating
$sql = "SELECT AVG(rating) as rating FROM $table
WHERE
c_id = $course_id AND
blog_id = $blog_id AND
item_id = $item_id AND
rating_type = '$type'";
$result = Database::query($sql);
$result = Database::fetch_array($result);
return round($result['rating'], 2);
}
/**
* Displays the form to create a new post.
*
* @author Toon Keppens
*
* @param int $blog_id
* @param int $post_id
*
* @return string HTML form
*/
public static function displayCommentCreateForm($blog_id, $post_id)
{
$taskId = !empty($_GET['task_id']) ? intval($_GET['task_id']) : 0;
$blog_id = intval($blog_id);
$post_id = intval($post_id);
$form = new FormValidator(
'add_post',
'post',
api_get_self().'?'.api_get_cidreq().'&'.http_build_query([
'action' => 'view_post',
'blog_id' => $blog_id,
'post_id' => $post_id,
'task_id' => $taskId,
]),
null,
['enctype' => 'multipart/form-data']
);
$header = $taskId ? get_lang('ExecuteThisTask') : get_lang('AddNewComment');
$form->addHeader($header);
$form->addText('title', get_lang('Title'));
$config = [];
if (!api_is_allowed_to_edit()) {
$config['ToolbarSet'] = 'ProjectComment';
} else {
$config['ToolbarSet'] = 'ProjectCommentStudent';
}
$form->addHtmlEditor(
'comment',
get_lang('Comment'),
false,
false,
$config
);
$form->addFile('user_upload', get_lang('AddAnAttachment'));
$form->addTextarea('post_file_comment', get_lang('FileComment'));
$form->addHidden('action', null);
$form->addHidden('comment_parent_id', 0);
$form->addHidden('task_id', $taskId);
$form->addButton('save', get_lang('Save'));
if ($form->validate()) {
$values = $form->exportValues();
self::createComment(
$values['title'],
$values['comment'],
$values['post_file_comment'],
$blog_id,
$post_id,
$values['comment_parent_id'],
$taskId
);
Display::addFlash(
Display::return_message(get_lang('CommentAdded'), 'success')
);
header(
'Location: '
.api_get_self()
.'?'
.api_get_cidreq()
.'&'
.http_build_query([
'blog_id' => $blog_id,
'post_id' => $post_id,
'action' => 'view_post',
'task_id' => $taskId,
])
);
exit;
}
return $form->returnForm();
}
/**
* Adds rating to a certain post or comment.
*
* @author Toon Keppens
*
* @param string $type
* @param int $blog_id
* @param int $item_id
* @param int $rating
*
* @return bool success
*/
public static function addRating($type, $blog_id, $item_id, $rating)
{
$_user = api_get_user_info();
$tbl_blogs_rating = Database::get_course_table(TABLE_BLOGS_RATING);
$course_id = api_get_course_int_id();
$blog_id = intval($blog_id);
$item_id = intval($item_id);
$type = Database::escape_string($type);
$rating = Database::escape_string($rating);
// Check if the user has already rated this post/comment
$sql = "SELECT rating_id FROM $tbl_blogs_rating
WHERE
c_id = $course_id AND
blog_id = $blog_id AND
item_id = $item_id AND
rating_type = '$type' AND
user_id = ".$_user['user_id'];
$result = Database::query($sql);
// Add rating
if (Database::num_rows($result) == 0) {
$sql = "INSERT INTO $tbl_blogs_rating (c_id, blog_id, rating_type, item_id, user_id, rating )
VALUES ($course_id, $blog_id, '$type', $item_id, ".$_user['user_id'].", '$rating')";
Database::query($sql);
$id = Database::insert_id();
if ($id) {
$sql = "UPDATE $tbl_blogs_rating SET rating_id = iid WHERE iid = $id";
Database::query($sql);
}
return true;
} else {
return false;
}
}
/**
* Displays the form to create a new post.
*
* @author Toon Keppens
*
* @param int $blog_id
*
* @return string
*/
public static function displayPostCreateForm($blog_id)
{
$blog_id = intval($blog_id);
if (!api_is_allowed('BLOG_'.$blog_id, 'article_add')) {
api_not_allowed();
}
$form = new FormValidator(
'add_post',
'post',
api_get_path(WEB_CODE_PATH)."blog/blog.php?action=new_post&blog_id=".$blog_id."&".api_get_cidreq(),
null,
['enctype' => 'multipart/form-data']
);
$form->addHidden('post_title_edited', 'false');
$form->addHeader(get_lang('NewPost'));
$form->addText('title', get_lang('Title'));
$config = [];
$config['ToolbarSet'] = !api_is_allowed_to_edit() ? 'ProjectStudent' : 'Project';
$form->addHtmlEditor('full_text', get_lang('Content'), false, false, $config);
$form->addFile('user_upload', get_lang('AddAnAttachment'));
$form->addTextarea('post_file_comment', get_lang('FileComment'));
$form->addHidden('new_post_submit', 'true');
$form->addButton('save', get_lang('Save'));
if ($form->validate()) {
$values = $form->exportValues();
$postId = self::createPost(
$values['title'],
$values['full_text'],
$values['post_file_comment'],
$blog_id
);
if ($postId) {
Display::addFlash(
Display::return_message(get_lang('BlogAdded'), 'success')
);
header('Location: '.api_get_self().'?'.api_get_cidreq().'&'.http_build_query([
'action' => 'view_post',
'blog_id' => $blog_id,
'post_id' => $postId,
]));
exit;
}
}
return $form->returnForm();
}
/**
* Displays the form to edit a post.
*
* @author Toon Keppens
*
* @param int $blog_id
* @param int $post_id
*
* @return string
*/
public static function displayPostEditForm($blog_id, $post_id)
{
$tbl_blogs_posts = Database::get_course_table(TABLE_BLOGS_POSTS);
$tbl_users = Database::get_main_table(TABLE_MAIN_USER);
$course_id = api_get_course_int_id();
$blog_id = intval($blog_id);
$post_id = intval($post_id);
// Get posts and author
$sql = "SELECT post.*, user.lastname, user.firstname
FROM $tbl_blogs_posts post
INNER JOIN $tbl_users user ON post.author_id = user.user_id
WHERE
post.c_id = $course_id AND
post.blog_id = $blog_id
AND post.post_id = $post_id
ORDER BY post_id DESC";
$result = Database::query($sql);
$blog_post = Database::fetch_array($result);
$form = new FormValidator(
'edit_post',
'post',
api_get_path(WEB_CODE_PATH).
'blog/blog.php?action=edit_post&post_id='.intval($_GET['post_id']).'&blog_id='.intval($blog_id).
'&article_id='.intval($_GET['article_id']).'&task_id='.intval($_GET['task_id']).'&'.api_get_cidreq()
);
$form->addHeader(get_lang('EditPost'));
$form->addText('title', get_lang('Title'));
if (!api_is_allowed_to_edit()) {
$config['ToolbarSet'] = 'ProjectStudent';
} else {
$config['ToolbarSet'] = 'Project';
}
$form->addHtmlEditor('full_text', get_lang('Content'), false, false, $config);
$form->addHidden('action', '');
$form->addHidden('edit_post_submit', 'true');
$form->addHidden('post_id', intval($_GET['post_id']));
$form->addButton('save', get_lang('Save'));
$form->setDefaults($blog_post);
return $form->returnForm();
}
/**
* Displays a list of tasks in this blog.
*
* @author Toon Keppens
*
* @param int $blog_id
*
* @return string
*/
public static function displayTasksList($blog_id)
{
global $charset;
$course_id = api_get_course_int_id();
$blog_id = intval($blog_id);
$html = '';
if (api_is_allowed('BLOG_'.$blog_id, 'article_add')) {
$tbl_blogs_tasks = Database::get_course_table(TABLE_BLOGS_TASKS);
$counter = 0;
global $color2;
$html .= '<div class="actions">';
$html .= '<a href="'.api_get_self().'?action=manage_tasks&blog_id='.$blog_id.'&do=add&'.api_get_cidreq().'">';
$html .= Display::return_icon('blog_newtasks.gif', get_lang('AddTasks'));
$html .= get_lang('AddTasks').'</a> ';
$html .= '<a href="'.api_get_self().'?action=manage_tasks&blog_id='.$blog_id.'&do=assign&'.api_get_cidreq().'">';
$html .= Display::return_icon('blog_task.gif', get_lang('AssignTasks'));
$html .= get_lang('AssignTasks').'</a>';
$html .= Display::url(
Display::return_icon('blog_admin_users.png', get_lang('RightsManager')),
api_get_self().'?'.http_build_query([
'action' => 'manage_rights',
'blog_id' => $blog_id,
]),
['title' => get_lang('ManageRights')]
);
$html .= '</div>';
$html .= '<span class="blogpost_title">'.get_lang('TaskList').'</span><br />';
$html .= "<table class=\"table table-hover table-striped data_table\">";
$html .= "<tr bgcolor=\"$color2\" align=\"center\" valign=\"top\">"
."<th width='240'><b>".get_lang('Title')."</b></th>"
."<th><b>".get_lang('Description')."</b></th>"
."<th><b>".get_lang('Color')."</b></th>"
."<th width='50'><b>".get_lang('Modify')."</b></th></tr>";
$sql = " SELECT
blog_id,
task_id,
blog_id,
title,
description,
color,
system_task
FROM $tbl_blogs_tasks
WHERE c_id = $course_id AND blog_id = $blog_id
ORDER BY system_task, title";
$result = Database::query($sql);
while ($task = Database::fetch_array($result)) {
$counter++;
$css_class = (($counter % 2) == 0) ? "row_odd" : "row_even";
$delete_icon = $task['system_task'] == '1' ? "delete_na.png" : "delete.png";
$delete_title = $task['system_task'] == '1' ? get_lang('DeleteSystemTask') : get_lang('DeleteTask');
$delete_link = $task['system_task'] == '1' ? '#' : api_get_self().'?action=manage_tasks&blog_id='.$task['blog_id'].'&do=delete&task_id='.$task['task_id'].'&'.api_get_cidreq();
$delete_confirm = ($task['system_task'] == '1') ? '' : 'onclick="javascript:if(!confirm(\''.addslashes(
api_htmlentities(get_lang("ConfirmYourChoice"), ENT_QUOTES, $charset)
).'\')) return false;"';
$html .= '<tr class="'.$css_class.'" valign="top">';
$html .= '<td width="240">'.Security::remove_XSS($task['title']).'</td>';
$html .= '<td>'.Security::remove_XSS($task['description']).'</td>';
$html .= '<td><span style="background-color: #'.$task['color'].'">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></td>';
$html .= '<td width="50">';
$html .= '<a href="'.api_get_self().'?action=manage_tasks&blog_id='.$task['blog_id'].'&do=edit&task_id='.$task['task_id'].'&'.api_get_cidreq().'">';
$html .= Display::return_icon('edit.png', get_lang('EditTask'));
$html .= "</a>";
$html .= '<a href="'.$delete_link.'"';
$html .= $delete_confirm;
$html .= '>';
$html .= Display::return_icon($delete_icon, $delete_title);
$html .= "</a>";
$html .= '</td>';
$html .= '</tr>';
}
$html .= "</table>";
}
return $html;
}
/**
* Displays a list of tasks assigned to a user in this blog.
*
* @author Toon Keppens
*
* @param int $blog_id
*
* @return string
*/
public static function displayAssignedTasksList($blog_id)
{
$tbl_users = Database::get_main_table(TABLE_MAIN_USER);
$tbl_blogs_tasks = Database::get_course_table(TABLE_BLOGS_TASKS);
$tbl_blogs_tasks_rel_user = Database::get_course_table(TABLE_BLOGS_TASKS_REL_USER);
$counter = 0;
global $charset, $color2;
$return = '<span class="blogpost_title">'.get_lang('AssignedTasks').'</span><br />';
$return .= "<table class=\"table table-hover table-striped data_table\">";
$return .= "<tr bgcolor=\"$color2\" align=\"center\" valign=\"top\">"
."<th width='240'><b>".get_lang('Member')."</b></th>"
."<th><b>".get_lang('Task')."</b></th>"
."<th><b>".get_lang('Description')."</b></th>"
."<th><b>".get_lang('TargetDate')."</b></th>"
."<th width='50'><b>".get_lang('Modify')."</b></th>"
."</tr>";
$course_id = api_get_course_int_id();
$blog_id = intval($blog_id);
$sql = "SELECT task_rel_user.*, task.title, user.firstname, user.lastname, user.username, task.description, task.system_task, task.blog_id, task.task_id
FROM $tbl_blogs_tasks_rel_user task_rel_user
INNER JOIN $tbl_blogs_tasks task
ON task_rel_user.task_id = task.task_id
INNER JOIN $tbl_users user
ON task_rel_user.user_id = user.user_id
WHERE
task_rel_user.c_id = $course_id AND
task.c_id = $course_id AND
task_rel_user.blog_id = $blog_id
ORDER BY target_date ASC";
$result = Database::query($sql);
while ($assignment = Database::fetch_array($result)) {
$counter++;
$css_class = (($counter % 2) == 0) ? "row_odd" : "row_even";
$delete_icon = ($assignment['system_task'] == '1') ? "delete_na.png" : "delete.png";
$delete_title = ($assignment['system_task'] == '1') ? get_lang('DeleteSystemTask') : get_lang('DeleteTask');
$username = api_htmlentities(sprintf(get_lang('LoginX'), $assignment['username']), ENT_QUOTES);
$return .= '<tr class="'.$css_class.'" valign="top">';
$return .= '<td width="240">'.Display::tag(
'span',
api_get_person_name($assignment['firstname'], $assignment['lastname']),
['title' => $username]
).'</td>';
$return .= '<td>'.Security::remove_XSS($assignment['title']).'</td>';
$return .= '<td>'.Security::remove_XSS($assignment['description']).'</td>';
$return .= '<td>'.$assignment['target_date'].'</td>';
$return .= '<td width="50">';
$return .= '<a
href="'.api_get_self().'?action=manage_tasks&blog_id='.$assignment['blog_id'].'&do=edit_assignment&task_id='.$assignment['task_id'].'&user_id='.$assignment['user_id'].'&'.api_get_cidreq().'">';
$return .= Display::return_icon('edit.png', get_lang('EditTask'));
$return .= "</a>";
$return .= '<a
href="'.api_get_self().'?action=manage_tasks&blog_id='.$assignment['blog_id'].'&do=delete_assignment&task_id='.$assignment['task_id'].'&user_id='.$assignment['user_id'].'&'.api_get_cidreq().'" ';
$return .= 'onclick="javascript:if(!confirm(\''.addslashes(api_htmlentities(get_lang("ConfirmYourChoice"), ENT_QUOTES, $charset)).'\')) return false;"';
$return .= Display::return_icon($delete_icon, $delete_title);
$return .= "</a>";
$return .= '</td>';
$return .= '</tr>';
}
$return .= "</table>";
return $return;
}
/**
* Displays new task form.
*
* @todo use FormValidator
*
* @author Toon Keppens
*
* @param int $blog_id
*
* @return string HTML form
*/
public static function displayTaskCreateForm($blog_id)
{
$blog_id = intval($blog_id);
$colors = [
'FFFFFF',
'FFFF99',
'FFCC99',
'FF9933',
'FF6699',
'CCFF99',
'CC9966',
'66FF00',
'9966FF',
'CF3F3F',
'990033',
'669933',
'0033FF',
'003366',
'000000',
];
$url = api_get_path(WEB_CODE_PATH).'blog/blog.php?'.api_get_cidreq().'&action=manage_tasks';
$return = '<form name="add_task" method="post" action="'.$url.'&blog_id='.$blog_id.'">';
$return .= '<legend>'.get_lang('AddTask').'</legend>';
$return .= ' <div class="control-group">
<label class="control-label">
<span class="form_required">*</span>'.get_lang('Title').'
</label>
<div class="controls">
<input name="task_name" type="text" size="70" />
</div>
</div>';
// task comment
$return .= ' <div class="control-group">
<label class="control-label">
'.get_lang('Description').'
</label>
<div class="controls">
<textarea name="task_description" cols="45"></textarea>
</div>
</div>';
// task management
$return .= ' <div class="control-group">
<label class="control-label">
'.get_lang('TaskManager').'
</label>
<div class="controls">';
$return .= '<table class="table table-hover table-striped data_table" cellspacing="0" style="border-collapse:collapse; width:446px;">';
$return .= '<tr>';
$return .= '<th colspan="2" style="width:223px;">'.get_lang('ArticleManager').'</th>';
$return .= '<th width:223px;>'.get_lang('CommentManager').'</th>';
$return .= '</tr>';
$return .= '<tr>';
$return .= '<th style="width:111px;"><label for="articleDelete">'.get_lang('Delete').'</label></th>';
$return .= '<th style="width:112px;"><label for="articleEdit">'.get_lang('Edit').'</label></th>';
$return .= '<th style="width:223px;"><label for="commentsDelete">'.get_lang('Delete').'</label></th>';
$return .= '</tr>';
$return .= '<tr>';
$return .= '<td style="text-align:center;"><input id="articleDelete" name="chkArticleDelete" type="checkbox" /></td>';
$return .= '<td style="text-align:center;"><input id="articleEdit" name="chkArticleEdit" type="checkbox" /></td>';
$return .= '<td style="border:1px dotted #808080; text-align:center;"><input id="commentsDelete" name="chkCommentsDelete" type="checkbox" /></td>';
$return .= '</tr>';
$return .= '</table>';
$return .= ' </div>
</div>';
// task color
$return .= ' <div class="control-group">
<label class="control-label">
'.get_lang('Color').'
</label>
<div class="controls">';
$return .= '<select name="task_color" id="color" style="width: 150px; background-color: #eeeeee" onchange="document.getElementById(\'color\').style.backgroundColor=\'#\'+document.getElementById(\'color\').value" onkeypress="document.getElementById(\'color\').style.backgroundColor=\'#\'+document.getElementById(\'color\').value">';
foreach ($colors as $color) {
$style = 'style="background-color: #'.$color.'"';
$return .= '<option value="'.$color.'" '.$style.'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</option>';
}
$return .= '</select>';
$return .= ' </div>
</div>';
// submit
$return .= ' <div class="control-group">
<div class="controls">
<input type="hidden" name="action" value="" />
<input type="hidden" name="new_task_submit" value="true" />
<button class="save" type="submit" name="Submit">'.get_lang('Save').'</button>
</div>
</div>';
$return .= '</form>';
$return .= '<div style="clear:both; margin-bottom: 10px;"></div>';
return $return;
}
/**
* Displays edit task form.
*
* @author Toon Keppens
*
* @param int $blog_id
* @param int $task_id
*
* @return string
*/
public static function displayTaskEditForm($blog_id, $task_id)
{
$tbl_blogs_tasks = Database::get_course_table(TABLE_BLOGS_TASKS);
$course_id = api_get_course_int_id();
$blog_id = intval($blog_id);
$task_id = intval($task_id);
$colors = [
'FFFFFF',
'FFFF99',
'FFCC99',
'FF9933',
'FF6699',
'CCFF99',
'CC9966',
'66FF00',
'9966FF',
'CF3F3F',
'990033',
'669933',
'0033FF',
'003366',
'000000',
];
$sql = "SELECT blog_id, task_id, title, description, color FROM $tbl_blogs_tasks
WHERE c_id = $course_id AND task_id = $task_id";
$result = Database::query($sql);
$task = Database::fetch_array($result);
$url = api_get_path(WEB_CODE_PATH).'blog/blog.php?'.api_get_cidreq().'&action=manage_tasks';
$return = '<form name="edit_task" method="post" action="'.$url.'&blog_id='.$blog_id.'">
<legend>'.get_lang('EditTask').'</legend>
<table width="100%" border="0" cellspacing="2">
<tr>
<td align="right">'.get_lang('Title').':&nbsp;&nbsp;</td>
<td>
<input name="task_name" type="text" size="70" value="'.Security::remove_XSS($task['title']).'" />
</td>
</tr>
<tr>
<td align="right">'.get_lang('Description').':&nbsp;&nbsp;</td>
<td>
<textarea name="task_description" cols="45">'.
Security::remove_XSS($task['description']).'
</textarea>
</td>
</tr>';
/* edit by Kevin Van Den Haute (kevin@develop-it.be) */
$tbl_tasks_permissions = Database::get_course_table(TABLE_BLOGS_TASKS_PERMISSIONS);
$sql = "SELECT id, action FROM $tbl_tasks_permissions
WHERE c_id = $course_id AND task_id = $task_id";
$result = Database::query($sql);
$arrPermissions = [];
while ($row = Database::fetch_array($result)) {
$arrPermissions[] = $row['action'];
}
$return .= '<tr>';
$return .= '<td style="text-align:right; vertical-align:top;">'.get_lang('TaskManager').':&nbsp;&nbsp;</td>';
$return .= '<td>';
$return .= '<table class="table table-hover table-striped data_table" cellspacing="0" style="border-collapse:collapse; width:446px;">';
$return .= '<tr>';
$return .= '<th colspan="2" style="width:223px;">'.get_lang('ArticleManager').'</th>';
$return .= '<th width:223px;>'.get_lang('CommentManager').'</th>';
$return .= '</tr>';
$return .= '<tr>';
$return .= '<th style="width:111px;"><label for="articleDelete">'.get_lang('Delete').'</label></th>';
$return .= '<th style="width:112px;"><label for="articleEdit">'.get_lang('Edit').'</label></th>';
$return .= '<th style="width:223px;"><label for="commentsDelete">'.get_lang('Delete').'</label></th>';
$return .= '</tr>';
$return .= '<tr>';
$return .= '<td style="text-align:center;"><input '.((in_array(
'article_delete',
$arrPermissions
)) ? 'checked ' : '').'id="articleDelete" name="chkArticleDelete" type="checkbox" /></td>';
$return .= '<td style="text-align:center;"><input '.((in_array(
'article_edit',
$arrPermissions
)) ? 'checked ' : '').'id="articleEdit" name="chkArticleEdit" type="checkbox" /></td>';
$return .= '<td style="text-align:center;"><input '.((in_array(
'article_comments_delete',
$arrPermissions
)) ? 'checked ' : '').'id="commentsDelete" name="chkCommentsDelete" type="checkbox" /></td>';
$return .= '</tr>';
$return .= '</table>';
$return .= '</td>';
$return .= '</tr>';
/* end of edit */
$return .= '<tr>
<td align="right">'.get_lang('Color').':&nbsp;&nbsp;</td>
<td>
<select name="task_color" id="color" style="width: 150px; background-color: #'.$task['color'].'" onchange="document.getElementById(\'color\').style.backgroundColor=\'#\'+document.getElementById(\'color\').value" onkeypress="document.getElementById(\'color\').style.backgroundColor=\'#\'+document.getElementById(\'color\').value">';
foreach ($colors as $color) {
$selected = ($color == $task['color']) ? ' selected' : '';
$style = 'style="background-color: #'.$color.'"';
$return .= '<option value="'.$color.'" '.$style.' '.$selected.' >&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</option>';
}
$return .= '</select>
</td>
</tr>
<tr>
<td align="right">&nbsp;</td>
<td><br /><input type="hidden" name="action" value="" />
<input type="hidden" name="edit_task_submit" value="true" />
<input type="hidden" name="task_id" value="'.$task['task_id'].'" />
<input type="hidden" name="blog_id" value="'.$task['blog_id'].'" />
<button class="save" type="submit" name="Submit">'.get_lang('Save').'</button></td>
</tr>
</table>
</form>';
return $return;
}
/**
* Displays assign task form.
*
* @author Toon Keppens
*/
public static function displayTaskAssignmentForm($blog_id)
{
$form = self::getTaskAssignmentForm($blog_id);
$form->addHidden('assign_task_submit', 'true');
return $form->returnForm()
.PHP_EOL
.'<div style="clear: both; margin-bottom:10px;"></div>';
}
/**
* Returns an HTML form to assign a task.
*
* @param $blog_id
*
* @return FormValidator
*/
public static function getTaskAssignmentForm($blog_id)
{
$tbl_users = Database::get_main_table(TABLE_MAIN_USER);
$tbl_blogs_rel_user = Database::get_course_table(TABLE_BLOGS_REL_USER);
$tbl_blogs_tasks = Database::get_course_table(TABLE_BLOGS_TASKS);
$course_id = api_get_course_int_id();
$blog_id = intval($blog_id);
// Get users in this blog / make select list of it
$sql = "SELECT user.user_id, user.firstname, user.lastname, user.username
FROM $tbl_users user
INNER JOIN $tbl_blogs_rel_user blogs_rel_user
ON user.user_id = blogs_rel_user.user_id
WHERE blogs_rel_user.c_id = $course_id AND blogs_rel_user.blog_id = $blog_id";
$result = Database::query($sql);
$options = [];
while ($user = Database::fetch_array($result)) {
$options[$user['user_id']] = api_get_person_name($user['firstname'], $user['lastname']);
}
// Get tasks in this blog / make select list of it
$sql = "SELECT
blog_id,
task_id,
blog_id,
title,
description,
color,
system_task
FROM $tbl_blogs_tasks
WHERE c_id = $course_id AND blog_id = $blog_id
ORDER BY system_task, title";
$result = Database::query($sql);
$taskOptions = [];
while ($task = Database::fetch_array($result)) {
$taskOptions[$task['task_id']] = stripslashes($task['title']);
}
$form = new FormValidator(
'assign_task',
'post',
api_get_path(WEB_CODE_PATH).
'blog/blog.php?action=manage_tasks&blog_id='.$blog_id.'&'.api_get_cidreq()
);
$form->addHeader(get_lang('AssignTask'));
$form->addSelect('task_user_id', get_lang('SelectUser'), $options);
$form->addSelect('task_task_id', get_lang('SelectTask'), $taskOptions);
$form->addDatePicker('task_day', get_lang('SelectTargetDate'));
$form->addHidden('action', '');
$form->addButtonSave(get_lang('Ok'));
return $form;
}
/**
* Displays assign task form.
*
* @author Toon Keppens
*
* @param int $blog_id
* @param int $task_id
* @param int $user_id
*
* @return string HTML form
*/
public static function displayAssignedTaskEditForm($blog_id, $task_id, $user_id)
{
$table = Database::get_course_table(TABLE_BLOGS_TASKS_REL_USER);
$course_id = api_get_course_int_id();
$blog_id = intval($blog_id);
$task_id = intval($task_id);
$user_id = intval($user_id);
// Get assign date;
$sql = "
SELECT target_date
FROM $table
WHERE c_id = $course_id AND
blog_id = $blog_id AND
user_id = $user_id AND
task_id = $task_id";
$result = Database::query($sql);
$row = Database::fetch_assoc($result);
$date = $row['target_date'];
$defaults = [
'task_user_id' => $user_id,
'task_task_id' => $task_id,
'task_day' => $date,
];
$form = self::getTaskAssignmentForm($blog_id);
$form->addHidden('old_task_id', $task_id);
$form->addHidden('old_user_id', $user_id);
$form->addHidden('old_target_date', $date);
$form->addHidden('assign_task_edit_submit', 'true');
$form->setDefaults($defaults);
return $form->returnForm();
}
/**
* Assigns a task to a user in a blog.
*
* @param int $blog_id
* @param int $user_id
* @param int $task_id
* @param string $target_date date
*/
public static function assignTask($blog_id, $user_id, $task_id, $target_date)
{
$table = Database::get_course_table(TABLE_BLOGS_TASKS_REL_USER);
$course_id = api_get_course_int_id();
$blog_id = intval($blog_id);
$user_id = intval($user_id);
$task_id = intval($task_id);
$target_date = Database::escape_string($target_date);
$sql = "
SELECT COUNT(*) as 'number'
FROM $table
WHERE c_id = $course_id
AND blog_id = $blog_id
AND user_id = $user_id
AND task_id = $task_id";
$result = Database::query($sql);
$row = Database::fetch_assoc($result);
if ($row['number'] == 0) {
$sql = "
INSERT INTO ".$table." (
c_id,
blog_id,
user_id,
task_id,
target_date
) VALUES (
$course_id,
$blog_id,
$user_id,
$task_id,
'$target_date'
)";
Database::query($sql);
}
}
/**
* Edit an assigned task.
*
* @param $blog_id
* @param $user_id
* @param $task_id
* @param $target_date
* @param $old_user_id
* @param $old_task_id
* @param $old_target_date
*/
public static function updateAssignedTask(
$blog_id,
$user_id,
$task_id,
$target_date,
$old_user_id,
$old_task_id,
$old_target_date
) {
$tbl_blogs_tasks_rel_user = Database::get_course_table(TABLE_BLOGS_TASKS_REL_USER);
$course_id = api_get_course_int_id();
$blog_id = intval($blog_id);
$user_id = intval($user_id);
$task_id = intval($task_id);
$target_date = Database::escape_string($target_date);
$old_user_id = intval($old_user_id);
$old_task_id = intval($old_task_id);
$old_target_date = Database::escape_string($old_target_date);
$sql = "SELECT COUNT(*) as 'number'
FROM $tbl_blogs_tasks_rel_user
WHERE
c_id = $course_id AND
blog_id = $blog_id AND
user_id = $user_id AND
task_id = $task_id";
$result = Database::query($sql);
$row = Database::fetch_assoc($result);
if ($row['number'] == 0 ||
($row['number'] != 0 && $task_id == $old_task_id && $user_id == $old_user_id)
) {
$sql = "UPDATE $tbl_blogs_tasks_rel_user
SET
user_id = $user_id,
task_id = $task_id,
target_date = '$target_date'
WHERE
c_id = $course_id AND
blog_id = $blog_id AND
user_id = $old_user_id AND
task_id = $old_task_id AND
target_date = '$old_target_date'
";
Database::query($sql);
}
}
/**
* Displays a list with posts a user can select to execute his task.
*
* @param int $blog_id
* @param int $task_id
*
* @return string
*/
public static function displayPostSelectionForTask($blog_id, $task_id)
{
$tbl_blogs_tasks = Database::get_course_table(TABLE_BLOGS_TASKS);
$tbl_blogs_posts = Database::get_course_table(TABLE_BLOGS_POSTS);
$tbl_users = Database::get_main_table(TABLE_MAIN_USER);
$course_id = api_get_course_int_id();
$blog_id = intval($blog_id);
$task_id = intval($task_id);
$sql = "SELECT title, description FROM $tbl_blogs_tasks
WHERE task_id = $task_id
AND c_id = $course_id";
$result = Database::query($sql);
$row = Database::fetch_assoc($result);
// Get posts and authors
$sql = "SELECT post.*, user.lastname, user.firstname, user.username
FROM $tbl_blogs_posts post
INNER JOIN $tbl_users user ON post.author_id = user.user_id
WHERE post.blog_id = $blog_id AND post.c_id = $course_id
ORDER BY post_id DESC
LIMIT 0, 100";
$result = Database::query($sql);
// Display
$return = '<span class="blogpost_title">'.
get_lang('SelectTaskArticle').' "'.Security::remove_XSS($row['title']).'"</span>';
$return .= '<span style="font-style: italic;"">'.Security::remove_XSS($row['description']).'</span><br><br>';
if (Database::num_rows($result) == 0) {
$return .= get_lang('NoArticles');
return $return;
}
$url = api_get_path(WEB_CODE_PATH).'blog/blog.php?'.api_get_cidreq().'&action=execute_task';
while ($blog_post = Database::fetch_array($result)) {
$username = api_htmlentities(sprintf(get_lang('LoginX'), $blog_post['username']), ENT_QUOTES);
$return .= '<a href="'.$url.'&blog_id='.$blog_id.'&task_id='.$task_id.'&post_id='.$blog_post['post_id'].'#add_comment">'.
Security::remove_XSS($blog_post['title']).'</a>, '.
get_lang('WrittenBy').' '.stripslashes(
Display::tag(
'span',
api_get_person_name($blog_post['firstname'], $blog_post['lastname']),
['title' => $username]
)
).'<br />';
}
return $return;
}
/**
* Unsubscribe a user from a given blog.
*
* @author Toon Keppens
*
* @param int $blog_id
* @param int $user_id
*/
public static function unsubscribeUser($blog_id, $user_id)
{
$tbl_blogs_rel_user = Database::get_course_table(TABLE_BLOGS_REL_USER);
$tbl_user_permissions = Database::get_course_table(TABLE_PERMISSION_USER);
$blog_id = intval($blog_id);
$user_id = intval($user_id);
// Unsubscribe the user
$sql = "DELETE FROM $tbl_blogs_rel_user
WHERE blog_id = $blog_id AND user_id = $user_id";
Database::query($sql);
// Remove this user's permissions.
$sql = "DELETE FROM $tbl_user_permissions
WHERE user_id = $user_id";
Database::query($sql);
}
/**
* Displays the form to register users in a blog (in a course)
* The listed users are users subscribed in the course.
*
* @author Toon Keppens
*
* @param int $blog_id
*
* @return string html Form with sortable table with users to subcribe in a blog, in a course
*/
public static function displayUserSubscriptionForm($blog_id)
{
$_course = api_get_course_info();
$is_western_name_order = api_is_western_name_order();
$session_id = api_get_session_id();
$course_id = $_course['real_id'];
$blog_id = intval($blog_id);
$currentCourse = $_course['code'];
$tbl_users = Database::get_main_table(TABLE_MAIN_USER);
$tbl_blogs_rel_user = Database::get_course_table(TABLE_BLOGS_REL_USER);
$html = null;
$html .= '<legend>'.get_lang('SubscribeMembers').'</legend>';
// Get blog members' id.
$sql = "SELECT user.user_id FROM $tbl_users user
INNER JOIN $tbl_blogs_rel_user blogs_rel_user
ON user.user_id = blogs_rel_user.user_id
WHERE blogs_rel_user.c_id = $course_id AND blogs_rel_user.blog_id = $blog_id";
$result = Database::query($sql);
$blog_member_ids = [];
while ($user = Database::fetch_array($result)) {
$blog_member_ids[] = $user['user_id'];
}
// Set table headers
$column_header[] = ['', false, ''];
if ($is_western_name_order) {
$column_header[] = [get_lang('FirstName'), true, ''];
$column_header[] = [get_lang('LastName'), true, ''];
} else {
$column_header[] = [get_lang('LastName'), true, ''];
$column_header[] = [get_lang('FirstName'), true, ''];
}
$column_header[] = [get_lang('Email'), false, ''];
$column_header[] = [get_lang('Register'), false, ''];
$student_list = CourseManager::get_student_list_from_course_code(
$currentCourse,
false,
$session_id
);
$user_data = [];
// Add users that are not in this blog to the list.
foreach ($student_list as $key => $user) {
if (isset($user['id_user'])) {
$user['user_id'] = $user['id_user'];
}
if (!in_array($user['user_id'], $blog_member_ids)) {
$a_infosUser = api_get_user_info($user['user_id']);
$row = [];
$row[] = '<input type="checkbox" name="user[]" value="'.$a_infosUser['user_id'].'" '.((isset($_GET['selectall']) && $_GET['selectall'] == "subscribe") ? ' checked="checked" ' : '').'/>';
$username = api_htmlentities(sprintf(get_lang('LoginX'), $a_infosUser["username"]), ENT_QUOTES);
if ($is_western_name_order) {
$row[] = $a_infosUser["firstname"];
$row[] = Display::tag(
'span',
$a_infosUser["lastname"],
['title' => $username]
);
} else {
$row[] = Display::tag(
'span',
$a_infosUser["lastname"],
['title' => $username]
);
$row[] = $a_infosUser["firstname"];
}
$row[] = Display::icon_mailto_link($a_infosUser['email']);
// Link to register users
if ($a_infosUser['user_id'] != api_get_user_id()) {
$row[] = Display::url(
get_lang('Register'),
api_get_self()."?action=manage_members&blog_id=$blog_id&register=yes&user_id=".$a_infosUser["user_id"].'&'.api_get_cidreq(),
['class' => 'btn btn-primary']
);
} else {
$row[] = '';
}
$user_data[] = $row;
}
}
// Display
$query_vars['action'] = 'manage_members';
$query_vars['blog_id'] = $blog_id;
$html .= '<form
class="form-inline"
method="post"
action="blog.php?action=manage_members&blog_id='.$blog_id.'&'.api_get_cidreq().'">';
$html .= Display::return_sortable_table($column_header, $user_data, null, null, $query_vars);
$link = isset($_GET['action']) ? 'action='.Security::remove_XSS($_GET['action']).'&' : '';
$link .= "blog_id=$blog_id&".api_get_cidreq();
$html .= '<a
class="btn btn-default" href="blog.php?'.$link.'selectall=subscribe">'.
get_lang('SelectAll').'</a> - ';
$html .= '<a class="btn btn-default" href="blog.php?'.$link.'">'.get_lang('UnSelectAll').'</a> ';
$html .= '<div class="form-group">';
$html .= '<label>';
$html .= get_lang('WithSelected').' : ';
$html .= '</label>';
$html .= '<select class="selectpicker" name="action">';
$html .= '<option value="select_subscribe">'.get_lang('Register').'</option>';
$html .= '</select>';
$html .= '<input type="hidden" name="register" value="true" />';
$html .= '<button class="btn btn-default" type="submit">'.get_lang('Ok').'</button>';
$html .= '</div>';
$html .= '</form>';
return $html;
}
/**
* Displays the form to register users in a blog (in a course)
* The listed users are users subcribed in the course.
*
* @author Toon Keppens
*
* @param int $blog_id
*
* @return false|null form with sortable table with users to unsubcribe from a blog
*/
public static function displayUserUnsubscriptionForm($blog_id)
{
$_user = api_get_user_info();
$is_western_name_order = api_is_western_name_order();
$html = null;
// Init
$tbl_users = Database::get_main_table(TABLE_MAIN_USER);
$tbl_blogs_rel_user = Database::get_course_table(TABLE_BLOGS_REL_USER);
$blog_id = intval($blog_id);
$html .= '<legend>'.get_lang('UnsubscribeMembers').'</legend>';
//table column titles
$column_header[] = ['', false, ''];
if ($is_western_name_order) {
$column_header[] = [get_lang('FirstName'), true, ''];
$column_header[] = [get_lang('LastName'), true, ''];
} else {
$column_header[] = [get_lang('LastName'), true, ''];
$column_header[] = [get_lang('FirstName'), true, ''];
}
$column_header[] = [get_lang('Email'), false, ''];
$column_header[] = [get_lang('TaskManager'), true, ''];
$column_header[] = [get_lang('UnRegister'), false, ''];
$course_id = api_get_course_int_id();
$sql = "SELECT user.user_id, user.lastname, user.firstname, user.email, user.username
FROM $tbl_users user
INNER JOIN $tbl_blogs_rel_user blogs_rel_user
ON user.user_id = blogs_rel_user.user_id
WHERE blogs_rel_user.c_id = $course_id AND blogs_rel_user.blog_id = $blog_id";
if (!($sql_result = Database::query($sql))) {
return false;
}
$user_data = [];
while ($myrow = Database::fetch_array($sql_result)) {
$row = [];
$row[] = '<input
type="checkbox"
name="user[]"
value="'.$myrow['user_id'].'" '.((isset($_GET['selectall']) && $_GET['selectall'] == "unsubscribe") ? ' checked="checked" ' : '').'/>';
$username = api_htmlentities(sprintf(get_lang('LoginX'), $myrow["username"]), ENT_QUOTES);
if ($is_western_name_order) {
$row[] = $myrow["firstname"];
$row[] = Display::tag(
'span',
$myrow["lastname"],
['title' => $username]
);
} else {
$row[] = Display::tag(
'span',
$myrow["lastname"],
['title' => $username]
);
$row[] = $myrow["firstname"];
}
$row[] = Display::icon_mailto_link($myrow["email"]);
$sql = "SELECT bt.title task
FROM ".Database::get_course_table(TABLE_BLOGS_TASKS_REL_USER)." btu
INNER JOIN ".Database::get_course_table(TABLE_BLOGS_TASKS)." bt
ON btu.task_id = bt.task_id
WHERE btu.c_id = $course_id AND
bt.c_id = $course_id AND
btu.blog_id = $blog_id AND
btu.user_id = ".$myrow['user_id'];
$sql_res = Database::query($sql);
$task = '';
while ($r = Database::fetch_array($sql_res)) {
$task .= stripslashes($r['task']).', ';
}
$task = (api_strlen(trim($task)) != 0) ? api_substr($task, 0, api_strlen($task) - 2) : get_lang('Reader');
$row[] = $task;
//Link to register users
if ($myrow["user_id"] != $_user['user_id']) {
$row[] = Display::url(
get_lang('UnRegister'),
api_get_self()."?action=manage_members&blog_id=$blog_id&unregister=yes&user_id=".$myrow['user_id'].'&'.api_get_cidreq(),
['class' => 'btn btn-primary']
);
} else {
$row[] = '';
}
$user_data[] = $row;
}
$query_vars['action'] = 'manage_members';
$query_vars['blog_id'] = $blog_id;
$html .= '<form
class="form-inline"
method="post"
action="blog.php?action=manage_members&blog_id='.$blog_id.'&'.api_get_cidreq().'">';
$html .= Display::return_sortable_table($column_header, $user_data, null, null, $query_vars);
$link = isset($_GET['action']) ? 'action='.Security::remove_XSS($_GET['action']).'&' : '';
$link .= "blog_id=$blog_id&".api_get_cidreq();
$html .= '<a class="btn btn-default" href="blog.php?'.$link.'selectall=unsubscribe">'.get_lang('SelectAll').'</a> - ';
$html .= '<a class="btn btn-default" href="blog.php?'.$link.'">'.get_lang('UnSelectAll').'</a> ';
$html .= '<div class="form-group">';
$html .= '<label>';
$html .= get_lang('WithSelected').' : ';
$html .= '</label>';
$html .= '<select name="action" class="selectpicker">';
$html .= '<option value="select_unsubscribe">'.get_lang('UnRegister').'</option>';
$html .= '</select>';
$html .= '<input type="hidden" name="unregister" value="true" />';
$html .= '<button class="btn btn-default" type="submit">'.get_lang('Ok').'</button>';
$html .= '</div>';
$html .= '</form>';
return $html;
}
/**
* Displays a matrix with selectboxes. On the left: users, on top: possible rights.
* The blog admin can thus select what a certain user can do in the current blog.
*
* @param int $blog_id
*
* @return string
*/
public static function displayUserRightsForm($blog_id)
{
ob_start();
echo '<legend>'.get_lang('RightsManager').'</legend>';
echo '<br />';
// Integration of patricks permissions system.
require_once api_get_path(SYS_CODE_PATH).'permissions/blog_permissions.inc.php';
$content = ob_get_contents();
ob_get_clean();
return $content;
}
/**
* show the calender of the given month.
*
* @author Patrick Cool
* @author Toon Keppens
*
* @param int $month The integer value of the month we are viewing
* @param int $year The 4-digit year indication e.g. 2005
* @param int $blog_id
*
* @return string html code
*/
public static function displayMiniMonthCalendar($month, $year, $blog_id)
{
$_user = api_get_user_info();
global $DaysShort;
global $MonthsLong;
$html = null;
$posts = [];
$tasks = [];
$tbl_users = Database::get_main_table(TABLE_MAIN_USER);
$tbl_blogs_posts = Database::get_course_table(TABLE_BLOGS_POSTS);
$tbl_blogs_tasks = Database::get_course_table(TABLE_BLOGS_TASKS);
$tbl_blogs_tasks_rel_user = Database::get_course_table(TABLE_BLOGS_TASKS_REL_USER);
$tbl_blogs = Database::get_course_table(TABLE_BLOGS);
$course_id = api_get_course_int_id();
$blog_id = intval($blog_id);
$month = intval($month);
$year = intval($year);
//Handle leap year
$numberofdays = [0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
if (($year % 400 == 0) or ($year % 4 == 0 and $year % 100 != 0)) {
$numberofdays[2] = 29;
}
//Get the first day of the month
$dayone = getdate(mktime(0, 0, 0, $month, 1, $year));
$monthName = $MonthsLong[$month - 1];
$url = api_get_path(WEB_CODE_PATH).'blog/blog.php?'.api_get_cidreq();
//Start the week on monday
$startdayofweek = $dayone['wday'] != 0 ? ($dayone['wday'] - 1) : 6;
$blogId = isset($_GET['blog_id']) ? intval($_GET['blog_id']) : null;
$filter = isset($_GET['filter']) ? Security::remove_XSS($_GET['filter']) : null;
$backwardsURL = $url."&blog_id=".$blogId."&filter=".$filter."&month=".($month == 1 ? 12 : $month - 1)."&year=".($month == 1 ? $year - 1 : $year);
$forewardsURL = $url."&blog_id=".$blogId."&filter=".$filter."&month=".($month == 12 ? 1 : $month + 1)."&year=".($month == 12 ? $year + 1 : $year);
// Get posts for this month
$sql = "SELECT post.*, DAYOFMONTH(date_creation) as post_day, user.lastname, user.firstname
FROM $tbl_blogs_posts post
INNER JOIN $tbl_users user
ON post.author_id = user.user_id
WHERE
post.c_id = $course_id AND
post.blog_id = $blog_id AND
MONTH(date_creation) = '$month' AND
YEAR(date_creation) = '$year'
ORDER BY date_creation";
$result = Database::query($sql);
// We will create an array of days on which there are posts.
if (Database::num_rows($result) > 0) {
while ($blog_post = Database::fetch_array($result)) {
// If the day of this post is not yet in the array, add it.
if (!in_array($blog_post['post_day'], $posts)) {
$posts[] = $blog_post['post_day'];
}
}
}
// Get tasks for this month
if ($_user['user_id']) {
$sql = "SELECT
task_rel_user.*,
DAYOFMONTH(target_date) as task_day,
task.title,
blog.blog_name
FROM $tbl_blogs_tasks_rel_user task_rel_user
INNER JOIN $tbl_blogs_tasks task
ON task_rel_user.task_id = task.task_id
INNER JOIN $tbl_blogs blog
ON task_rel_user.blog_id = blog.blog_id
WHERE
task_rel_user.c_id = $course_id AND
task.c_id = $course_id AND
blog.c_id = $course_id AND
task_rel_user.user_id = ".$_user['user_id']." AND
MONTH(target_date) = '$month' AND
YEAR(target_date) = '$year'
ORDER BY target_date ASC";
$result = Database::query($sql);
if (Database::num_rows($result) > 0) {
while ($mytask = Database::fetch_array($result)) {
$tasks[$mytask['task_day']][$mytask['task_id']]['task_id'] = $mytask['task_id'];
$tasks[$mytask['task_day']][$mytask['task_id']]['title'] = $mytask['title'];
$tasks[$mytask['task_day']][$mytask['task_id']]['blog_id'] = $mytask['blog_id'];
$tasks[$mytask['task_day']][$mytask['task_id']]['blog_name'] = $mytask['blog_name'];
$tasks[$mytask['task_day']][$mytask['task_id']]['day'] = $mytask['task_day'];
}
}
}
$html .= '<table id="smallcalendar" class="table table-responsive">
<tr id="title">
<th width="10%"><a href="'.$backwardsURL.'">&laquo;</a></th>
<th align="center" width="80%" colspan="5" class="month">'.$monthName.' '.$year.'</th>
<th width="10%" align="right"><a href="'.$forewardsURL.'">&raquo;</a></th></tr>';
$html .= '<tr>';
for ($ii = 1; $ii < 8; $ii++) {
$html .= '<td class="weekdays">'.$DaysShort[$ii % 7].'</td>';
}
$html .= '</tr>';
$curday = -1;
$today = getdate();
while ($curday <= $numberofdays[$month]) {
$html .= '<tr>';
for ($ii = 0; $ii < 7; $ii++) {
if (($curday == -1) && ($ii == $startdayofweek)) {
$curday = 1;
}
if (($curday > 0) && ($curday <= $numberofdays[$month])) {
$bgcolor = $ii < 5 ? $class = "class=\"days_week\"" : $class = "class=\"days_weekend\"";
$dayheader = "$curday";
if (($curday == $today['mday']) && ($year == $today['year']) && ($month == $today['mon'])) {
$dayheader = "$curday";
$class = "class=\"days_today\"";
}
$html .= '<td '.$class.'>';
// If there are posts on this day, create a filter link.
if (in_array($curday, $posts)) {
$html .= '<a
href="'.$url.'&blog_id='.$blog_id.'&filter='.$year.'-'.$month.'-'.$curday.'&month='.$month.'&year='.$year.'"
title="'.get_lang('ViewPostsOfThisDay').'">'.$curday.'</a>';
} else {
$html .= $dayheader;
}
if (count($tasks) > 0) {
if (isset($tasks[$curday]) && is_array($tasks[$curday])) {
// Add tasks to calendar
foreach ($tasks[$curday] as $task) {
$html .= '<a
href="blog.php?action=execute_task&blog_id='.$task['blog_id'].'&task_id='.stripslashes($task['task_id']).'" title="'.$task['title'].' : '.get_lang('InBlog').' : '.$task['blog_name'].' - '.get_lang('ExecuteThisTask').'">';
$html .= Display::return_icon('blog_task.gif', get_lang('ExecuteThisTask'));
$html .= '</a>';
}
}
}
$html .= '</td>';
$curday++;
} else {
$html .= '<td>&nbsp;</td>';
}
}
$html .= '</tr>';
}
$html .= '</table>';
return $html;
}
/**
* Blog admin | Display the form to add a new blog.
*/
public static function displayBlogCreateForm()
{
$form = new FormValidator(
'add_blog',
'post',
'blog_admin.php?action=add&'.api_get_cidreq()
);
$form->addElement('header', get_lang('AddBlog'));
$form->addElement('text', 'blog_name', get_lang('Title'));
$form->addElement('textarea', 'blog_subtitle', get_lang('SubTitle'));
$form->addElement('hidden', 'new_blog_submit', 'true');
$form->addButtonSave(get_lang('SaveProject'));
$defaults = [
'blog_name' => isset($_POST['blog_name']) ? Security::remove_XSS($_POST['blog_name']) : null,
'blog_subtitle' => isset($_POST['blog_subtitle']) ? Security::remove_XSS($_POST['blog_subtitle']) : null,
];
$form->setDefaults($defaults);
$form->display();
}
/**
* Blog admin | Display the form to edit a blog.
*
* @param int $blog_id
*/
public static function displayBlogEditForm($blog_id)
{
$course_id = api_get_course_int_id();
$blog_id = intval($blog_id);
$tbl_blogs = Database::get_course_table(TABLE_BLOGS);
$sql = "SELECT blog_id, blog_name, blog_subtitle
FROM $tbl_blogs
WHERE c_id = $course_id AND blog_id = $blog_id";
$result = Database::query($sql);
$blog = Database::fetch_array($result);
// the form contained errors but we do not want to lose the changes the user already did
if ($_POST) {
$blog['blog_name'] = Security::remove_XSS($_POST['blog_name']);
$blog['blog_subtitle'] = Security::remove_XSS($_POST['blog_subtitle']);
}
$form = new FormValidator(
'edit_blog',
'post',
'blog_admin.php?action=edit&blog_id='.intval($_GET['blog_id'])
);
$form->addElement('header', get_lang('EditBlog'));
$form->addElement('text', 'blog_name', get_lang('Title'));
$form->addElement('textarea', 'blog_subtitle', get_lang('SubTitle'));
$form->addElement('hidden', 'edit_blog_submit', 'true');
$form->addElement('hidden', 'blog_id', $blog['blog_id']);
$form->addButtonSave(get_lang('Save'));
$defaults = [];
$defaults['blog_name'] = $blog['blog_name'];
$defaults['blog_subtitle'] = $blog['blog_subtitle'];
$form->setDefaults($defaults);
$form->display();
}
/**
* Blog admin | Returns table with blogs in this course.
*/
public static function displayBlogsList()
{
global $charset;
$_user = api_get_user_info();
$course_id = api_get_course_int_id();
$tbl_blogs = Database::get_course_table(TABLE_BLOGS);
//condition for the session
$session_id = api_get_session_id();
$sql = "SELECT blog_name, blog_subtitle, visibility, blog_id, session_id
FROM $tbl_blogs WHERE c_id = $course_id
ORDER BY date_creation DESC";
$result = Database::query($sql);
$list_info = [];
if (Database::num_rows($result)) {
while ($row_project = Database::fetch_row($result)) {
$list_info[] = $row_project;
}
}
$list_content_blog = [];
$list_body_blog = [];
if (is_array($list_info)) {
foreach ($list_info as $key => $info_log) {
// Validation when belongs to a session
$session_img = api_get_session_image($info_log[4], $_user['status']);
$url_start_blog = 'blog.php'."?"."blog_id=".$info_log[3]."&".api_get_cidreq();
$title = Security::remove_XSS($info_log[0]);
$image = Display::return_icon('blog.png', $title);
$list_name = '<div style="float: left; width: 35px; height: 22px;"><a href="'.$url_start_blog.'">'.$image.'</a></div><a href="'.$url_start_blog.'">'.$title.'</a>'.$session_img;
$list_body_blog[] = $list_name;
$list_body_blog[] = Security::remove_XSS($info_log[1]);
$visibility_icon = ($info_log[2] == 0) ? 'invisible' : 'visible';
$visibility_info = ($info_log[2] == 0) ? 'Visible' : 'Invisible';
$my_image = '<a href="'.api_get_self().'?action=visibility&blog_id='.$info_log[3].'">';
$my_image .= Display::return_icon($visibility_icon.'.png', get_lang($visibility_info));
$my_image .= "</a>";
$my_image .= '<a href="'.api_get_self().'?action=edit&blog_id='.$info_log[3].'">';
$my_image .= Display::return_icon('edit.png', get_lang('EditBlog'));
$my_image .= "</a>";
$my_image .= '<a href="'.api_get_self().'?action=delete&blog_id='.$info_log[3].'" ';
$my_image .= 'onclick="javascript:if(!confirm(\''.addslashes(
api_htmlentities(get_lang("ConfirmYourChoice"), ENT_QUOTES, $charset)
).'\')) return false;" >';
$my_image .= Display::return_icon('delete.png', get_lang('DeleteBlog'));
$my_image .= "</a>";
$list_body_blog[] = $my_image;
$list_content_blog[] = $list_body_blog;
$list_body_blog = [];
}
$table = new SortableTableFromArrayConfig(
$list_content_blog,
1,
20,
'project'
);
$table->set_header(0, get_lang('Title'));
$table->set_header(1, get_lang('SubTitle'));
$table->set_header(2, get_lang('Modify'));
$table->display();
}
}
/**
* Show a list with all the attachments according the parameter's.
*
* @param int $blog_id the blog's id
* @param int $post_id the post's id
* @param int $comment_id the comment's id
*
* @return array with the post info according the parameters
*
* @author Julio Montoya
*
* @version avril 2008, dokeos 1.8.5
*/
public static function getBlogAttachments($blog_id, $post_id = 0, $comment_id = 0)
{
$blog_table_attachment = Database::get_course_table(TABLE_BLOGS_ATTACHMENT);
$blog_id = intval($blog_id);
$comment_id = intval($comment_id);
$post_id = intval($post_id);
$row = [];
$where = '';
if (!empty($post_id) && is_numeric($post_id)) {
$where .= " AND post_id = $post_id ";
}
if (!empty($comment_id) && is_numeric($comment_id)) {
if (!empty($post_id)) {
$where .= ' AND ';
}
$where .= " comment_id = $comment_id ";
}
$course_id = api_get_course_int_id();
$sql = "SELECT path, filename, comment
FROM $blog_table_attachment
WHERE c_id = $course_id AND blog_id = $blog_id
$where";
$result = Database::query($sql);
if (Database::num_rows($result) != 0) {
$row = Database::fetch_array($result);
}
return $row;
}
/**
* Delete the all the attachments according the parameters.
*
* @param int $blog_id
* @param int $post_id post's id
* @param int $comment_id the comment's id
*
* @author Julio Montoya
*
* @version avril 2008, dokeos 1.8.5
*/
public static function deleteAllBlogAttachments(
$blog_id,
$post_id = 0,
$comment_id = 0
) {
$_course = api_get_course_info();
$blog_table_attachment = Database::get_course_table(TABLE_BLOGS_ATTACHMENT);
$blog_id = intval($blog_id);
$comment_id = intval($comment_id);
$post_id = intval($post_id);
$course_id = api_get_course_int_id();
$where = null;
// delete files in DB
if (!empty($post_id) && is_numeric($post_id)) {
$where .= " AND post_id = $post_id ";
}
if (!empty($comment_id) && is_numeric($comment_id)) {
if (!empty($post_id)) {
$where .= ' AND ';
}
$where .= " comment_id = $comment_id ";
}
// delete all files in directory
$courseDir = $_course['path'].'/upload/blog';
$sys_course_path = api_get_path(SYS_COURSE_PATH);
$updir = $sys_course_path.$courseDir;
$sql = "SELECT path FROM $blog_table_attachment
WHERE c_id = $course_id AND blog_id = $blog_id $where";
$result = Database::query($sql);
while ($row = Database::fetch_row($result)) {
$file = $updir.'/'.$row[0];
if (Security::check_abs_path($file, $updir)) {
@unlink($file);
}
}
$sql = "DELETE FROM $blog_table_attachment
WHERE c_id = $course_id AND blog_id = $blog_id $where";
Database::query($sql);
}
/**
* Gets all the post from a given user id.
*
* @param int $courseId
* @param int $userId
* @param string $courseCode
*
* @return string
*/
public static function getBlogPostFromUser($courseId, $userId, $courseCode)
{
$tbl_blogs = Database::get_course_table(TABLE_BLOGS);
$tbl_blog_post = Database::get_course_table(TABLE_BLOGS_POSTS);
$courseId = intval($courseId);
$userId = intval($userId);
$sql = "SELECT DISTINCT blog.blog_id, post_id, title, full_text, post.date_creation
FROM $tbl_blogs blog
INNER JOIN $tbl_blog_post post
ON (blog.blog_id = post.blog_id AND blog.c_id = post.c_id)
WHERE
blog.c_id = $courseId AND
post.c_id = $courseId AND
author_id = $userId AND
visibility = 1
ORDER BY post.date_creation DESC ";
$result = Database::query($sql);
$return_data = '';
if (Database::num_rows($result) != 0) {
while ($row = Database::fetch_array($result)) {
$return_data .= '<div class="clear"></div><br />';
$return_data .= '<div class="actions" style="margin-left:5px;margin-right:5px;">'.
Display::return_icon(
'blog_article.png',
get_lang('BlogPosts')
).' '.
$row['title'].'&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<div style="float:right;margin-top:-18px">
<a href="../blog/blog.php?blog_id='.$row['blog_id'].'&gidReq=&cidReq='.$courseCode.' " >'.
get_lang('SeeBlog').'</a></div></div>';
$return_data .= '<br / >';
$return_data .= $row['full_text'];
$return_data .= '<br /><br />';
}
}
return $return_data;
}
/**
* Gets all the post comments from a given user id.
*
* @param int $courseId
* @param int $userId
* @param string $courseCode
*
* @return string
*/
public static function getBlogCommentsFromUser($courseId, $userId, $courseCode)
{
$tbl_blogs = Database::get_course_table(TABLE_BLOGS);
$tbl_blog_comment = Database::get_course_table(TABLE_BLOGS_COMMENTS);
$userId = intval($userId);
$courseId = intval($courseId);
$sql = "SELECT DISTINCT blog.blog_id, comment_id, title, comment, comment.date_creation
FROM $tbl_blogs blog
INNER JOIN $tbl_blog_comment comment
ON (blog.blog_id = comment.blog_id AND blog.c_id = comment.c_id)
WHERE blog.c_id = $courseId AND
comment.c_id = $courseId AND
author_id = $userId AND
visibility = 1
ORDER BY blog_name";
$result = Database::query($sql);
$return_data = '';
if (Database::num_rows($result) != 0) {
while ($row = Database::fetch_array($result)) {
$return_data .= '<div class="clear"></div><br />';
$return_data .= '<div class="actions" style="margin-left:5px;margin-right:5px;">'.
$row['title'].'&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<div style="float:right;margin-top:-18px">
<a href="../blog/blog.php?blog_id='.$row['blog_id'].'&gidReq=&cidReq='.Security::remove_XSS($courseCode).' " >'.
get_lang('SeeBlog').'</a></div></div>';
$return_data .= '<br / >';
$return_data .= $row['comment'];
$return_data .= '<br />';
}
}
return $return_data;
}
/**
* Filter the post $fullText to get a extract of $length characters.
*
* @param string $fullText
* @param int $length
*
* @return string|null
*/
private static function getPostExtract($fullText, $length = BLOG_MAX_PREVIEW_CHARS)
{
$parts = explode(BLOG_PAGE_BREAK, $fullText);
if (count($parts) > 1) {
return $parts[0];
}
// Remove any HTML from the string
$text = strip_tags($fullText);
$text = api_html_entity_decode($text);
// Replace end of lines with spaces
$text = preg_replace('/\s+/', ' ', $text);
// Count whitespaces to add to the cut() call below
$countBlanks = substr_count($text, ' ');
// Get a version of the string without spaces for comparison purposes
$textWithoutBlanks = str_replace(' ', '', $text);
// utf8_decode replaces non-ISO chars by '?' which avoids counting
// multi-byte characters as more than one character
$stringLength = strlen(utf8_decode($textWithoutBlanks));
if ($stringLength <= $length) {
return null;
}
// Cut the string to the BLOG_MAX_PREVIEX_CHARS limit, adding
// whitespaces
$extract = cut($text, $length + $countBlanks);
// Return an HTML string for printing
return api_htmlentities($extract);
}
}