Chamilo is a learning management system focused on ease of use and accessibility
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chamilo-lms/main/notebook/notebook_repository.class.php

387 lines
11 KiB

<?php
namespace Notebook;
use Database;
/**
* Notebook repository. Interface with the database.
*
* @author Laurent Opprecht <laurent@opprecht.info> for the University of Geneva
* @licence /license.txt
*/
class NotebookRepository
{
/**
* Return the instance of the repository.
*
* @return \Notebook\NotebookRepository
*/
public static function instance()
{
static $result = null;
if (empty($result)) {
$result = new self();
}
return $result;
}
/**
*
* @return string
*/
public function get_table()
{
return Database :: get_course_table(TABLE_NOTEBOOK);
}
/**
*
* @return string
*/
public function get_tool()
{
return TOOL_NOTEBOOK;
}
/**
*
*
* @param string $where Where filter to apply
* @return array
*/
public function find($where, $orderby = '', $limit = null)
{
$table_item_property = Database::get_course_table(TABLE_ITEM_PROPERTY);
$table = $this->get_table();
$tool = $this->get_tool();
$sql = "SELECT n.*,
prop.id AS property_id,
prop.tool,
prop.insert_user_id,
prop.insert_date,
prop.lastedit_date,
prop.ref,
prop.lastedit_type,
prop.lastedit_user_id,
prop.to_group_id,
prop.to_user_id,
prop.visibility,
prop.start_visible,
prop.end_visible,
prop.id_session
FROM
$table AS n,
$table_item_property AS prop
WHERE
(n.notebook_id = prop.ref AND
n.c_id = prop.c_id AND
prop.tool = '$tool')";
$sql .= $where ? "AND ($where)" : '';
$sql .= ' ORDER BY ';
$sql .= $orderby ? $orderby : 'creation_date ASC';
if ($limit) {
$from = (int) $limit->from;
$count = (int) $limit->count;
$sql .= " LIMIT $from, $count";
}
$rs = Database :: query($sql);
while ($data = Database::fetch_object($rs)) {
$result[] = Notebook::create($data);
}
return $result;
}
public function count($where)
{
$table_item_property = Database::get_course_table(TABLE_ITEM_PROPERTY);
$table = $this->get_table();
$tool = $this->get_tool();
$sql = "SELECT count(*) AS val
FROM
$table AS n,
$table_item_property AS prop
WHERE
(n.notebook_id = prop.ref AND
n.c_id = prop.c_id AND
prop.tool = '$tool')";
$sql .= $where ? "AND ($where)" : '';
$sql .= " ORDER BY name ASC";
$rs = Database :: query($sql);
while ($data = Database::fetch_object($rs)) {
return $data->val;
}
return 0;
}
/**
*
* @param string $where
* @return \Notebook\notebook_id
*/
public function find_one($where)
{
$items = $this->find($where);
foreach ($items as $item) {
return $item;
}
return null;
}
/**
* Retrieve one course description from its ids.
*
* @param int|Course $c_id
* @param int $id
* @return \notebook_id\notebook_id
*/
public function find_one_by_id($c_id, $id)
{
$c_id = is_object($c_id) ? $c_id->get_id() : (int) $c_id;
return $this->find_one("n.c_id = $c_id AND n.notebook_id = $id");
}
/**
* Retrieve one course description from its ids.
*
* @param int|Course $c_id
* @param string name
* @return \Notebook\Notebook
*/
public function find_one_by_course_and_title($c_id, $title)
{
$c_id = is_object($c_id) ? $c_id->get_id() : (int) $c_id;
$name = Database::escape_string($name);
return $this->find_one("n.c_id = $c_id AND n.title = '$title'");
}
/**
* Returns the list of notes belonging to a specific course and
* session.
*
* @param object $course
* @return Array
*/
public function find_by_course($course, $orderby = '', $limit = null)
{
$c_id = (int) $course->c_id;
$session_id = isset($course->session_id) ? (int) $course->session_id : 0;
if (empty($c_id)) {
return array();
}
$condition_session = api_get_session_condition($session_id);
$where = "n.c_id = $c_id $condition_session";
return $this->find($where, $orderby, $limit);
}
/**
* Returns the list of notes belonging to a specific course and
* session.
*
* @param object $course
* @return Array
*/
public function find_by_course_and_user($course, $user, $orderby = '', $limit = null)
{
$user_id = is_object($user) ? (int)$user->user_id : (int)$user;
$c_id = (int) $course->c_id;
$session_id = isset($course->session_id) ? (int) $course->session_id : 0;
if (empty($c_id)) {
return array();
}
$condition_session = api_get_session_condition($session_id);
$where = "user_id = $user_id AND n.c_id = $c_id $condition_session";
return $this->find($where, $orderby, $limit);
}
public function count_by_course($course)
{
$c_id = (int) $course->c_id;
$session_id = isset($course->session_id) ? (int) $course->session_id : 0;
if (empty($c_id)) {
return 0;
}
$condition_session = api_get_session_condition($session_id);
$where = "n.c_id = $c_id $condition_session";
return $this->count($where);
}
/**
*
* @param object \Notebook\Notebook
* @return bool
*/
public function save($item)
{
$id = $item->id;
if (empty($id)) {
return $this->insert($item);
} else {
return $this->update($item);
}
}
/**
*
* @param \Notebook\Notebook $item
* @return bool
*/
public function insert($item)
{
$c_id = (int) $item->c_id;
$user_id = (int)$item->user_id;
$user_id = $user_id ? $user_id : api_get_user_id();
$_course = api_get_course_info_by_id($c_id);
$course = $_course['code'];
$session_id = (int) $item->session_id;
$session_id = $session_id ? $session_id : api_get_session_id();
$title = trim($item->title);
$title = Database::escape_string($title);
$description = trim($item->description);
$description = Database::escape_string($description);
$now = time();
$creation_date = date('Y-m-d H:i:s', $now);
$update_date = $creation_date;
$status = (int)$item->status;
$status = $status ? $status : '0';
$table = $this->get_table();
$sql = "INSERT INTO $table
(c_id, user_id, course, session_id, title, description, creation_date, update_date, status)
VALUES
($c_id, $user_id, '$course', $session_id, '$title', '$description', '$creation_date', '$update_date', $status)";
$result = (bool) Database :: query($sql);
if ($result) {
$id = Database::insert_id();
$item->id = $id;
$item->creation_date = $creation_date;
$item->update_date = $update_date;
$item->status = (int)$status;
$item->course = $course;
$item->session_id = $session_id;
$item->user_id = $user_id;
//$_course = api_get_course_info_by_id($c_id);
$tool = $this->get_tool();
//$user_id = api_get_user_id();
api_item_property_update($_course, $tool, $id, 'NotebookAdded', $user_id);
}
return $result;
}
/**
*
* @param \Notebook\Notebook $item
* @return bool
*/
function update($item)
{
$c_id = (int) $item->c_id;
$id = (int) $item->id;
$user_id = (int)$item->user_id;
$user_id = $user_id ? $user_id : api_get_user_id();
$title = trim($item->title);
$title = Database::escape_string($title);
$description = trim($item->description);
$description = Database::escape_string($description);
$session_id = (int) $item->session_id;
$session_id = $session_id ? $session_id : '0';
$creation_date = $item->creation_date;
$creation_date = is_string($creation_date) ? strtotime($creation_date) : $creation_date;
$creation_date = date('Y-m-d H:i:s', $creation_date);
$now = time();
$creation_date = date('Y-m-d H:i:s', $now);
$update_date = $creation_date;
$status = (int)$item->status;
$status = $status ? $status : '0';
$table = $this->get_table();
$sql = "UPDATE $table SET
user_id = $user_id,
session_id = $session_id,
title = '$title',
description = '$description',
update_date = '$update_date',
status = $status
WHERE
c_id = $c_id AND
notebook_id = $id";
$result = (bool) Database :: query($sql);
if ($result) {
$item->update_date = $update_date;
$_course = api_get_course_info_by_id($c_id);
$tool = $this->get_tool();
//$user_id = api_get_user_id();
api_item_property_update($_course, $tool, $id, 'NotebookUpdated', $user_id);
}
return $result;
}
/**
*
* @param object $item
* @return boolean
*/
public function remove($item)
{
$table = $this->get_table();
$c_id = (int) $item->c_id;
$id = (int) $item->id;
if (empty($c_id) || empty($id)) {
return false;
}
$sql = "DELETE FROM $table WHERE c_id=$c_id AND notebook_id=$id";
$result = Database :: query($sql);
if ($result) {
$tool = $this->get_tool();
$tbl_property = Database :: get_course_table(TABLE_ITEM_PROPERTY);
$sql = "DELETE FROM $tbl_property WHERE c_id=$c_id AND ref=$id AND tool='$tool'";
Database :: query($sql);
}
return (bool) $result;
}
/**
*
* @param object $course
* @return int
*/
public function remove_by_course($course)
{
$items = $this->find_by_course($course);
foreach ($items as $item) {
$success = $this->remove($item);
if ($success) {
$result++;
}
}
return $result;
}
}