Enable slow_queries in /etc/mysqld/my.cnf, restart MySQL then follow using sudo tail -f /var/log/mysql/mysql-slow.log
<br/><br/>
In Chamilo 1.9 in particular, due to the merge of all databases into one, you might experience performance issue if you have many learning paths with many items in them.<br/>
To solve this performance issue, you can execute the following queries manually in your database:<br/>
<pre>
ALTER TABLE lp_item ADD INDEX idx_c_lp_item_cid_lp_id (c_id, lp_id);
ALTER TABLE lp_item_view ADD INDEX idx_c_lp_item_view_cid_lp_view_id_lp_item_id (c_id, lp_view_id, lp_item_id);
</pre>
These will be available in Chamilo 1.10 directly, but we cannot put them into Chamilo 1.9 from now on for organizational reasons.<br/>
Database::query("UPDATE $TABLECOURSUSER SET user_course_cat='".$newcategory."', sort='".($max_sort_value + 1)."' WHERE course_code='".$course_code."' AND user_id='".$current_user."' AND relation_type<>".COURSE_RELATION_TYPE_RRHH." ");
Database::query("UPDATE $TABLECOURSUSER SET user_course_cat='".$newcategory."', sort='".($max_sort_value + 1)."' WHERE course_code='".$course_code."' AND user_id='".$current_user."' AND relation_type<>".COURSE_RELATION_TYPE_RRHH." ");
if (Database::affected_rows()) { $result = true; }
if (Database::affected_rows()) {
$result = true;
}
return $result;
}
@ -162,7 +165,7 @@ class Auth
* @param string Course code
* @param int Category id
* @return bool True if it success
*/
*/
public function move_course($direction, $course2move, $category) {
// definition of tables
@ -175,30 +178,32 @@ class Auth
// we need only the courses of the category we are moving in
$user_courses = array();
foreach ($all_user_courses as $key => $course) {
if ($course['user_course_category'] == $category) {
$user_courses[] = $course;
}
if ($course['user_course_category'] == $category) {
$user_courses[] = $course;
}
}
foreach ($user_courses as $key => $course) {
if ($course2move == $course['code']) {
// source_course is the course where we clicked the up or down icon
$source_course = $course;
// target_course is the course before/after the source_course (depending on the up/down icon)
if ($direction == 'up') {
$target_course = $user_courses[$key - 1];
} else {
$target_course = $user_courses[$key + 1];
}
}
if ($course2move == $course['code']) {
// source_course is the course where we clicked the up or down icon
$source_course = $course;
// target_course is the course before/after the source_course (depending on the up/down icon)
if ($direction == 'up') {
$target_course = $user_courses[$key - 1];
} else {
$target_course = $user_courses[$key + 1];
}
}
}
if (count($target_course) > 0 && count($source_course) > 0) {
$sql_update1 = "UPDATE $TABLECOURSUSER SET sort='".$target_course['sort']."' WHERE course_code='".$source_course['code']."' AND user_id='".$current_user_id."' AND relation_type<>".COURSE_RELATION_TYPE_RRHH." ";
$sql_update2 = "UPDATE $TABLECOURSUSER SET sort='".$source_course['sort']."' WHERE course_code='".$target_course['code']."' AND user_id='".$current_user_id."' AND relation_type<>".COURSE_RELATION_TYPE_RRHH." ";
Database::query($sql_update2);
Database::query($sql_update1);
if (Database::affected_rows()) { $result = true; }
$sql_update1 = "UPDATE $TABLECOURSUSER SET sort='" . $target_course['sort'] . "' WHERE course_code='" . $source_course['code'] . "' AND user_id='" . $current_user_id . "' AND relation_type<>" . COURSE_RELATION_TYPE_RRHH . " ";
$sql_update2 = "UPDATE $TABLECOURSUSER SET sort='" . $source_course['sort'] . "' WHERE course_code='" . $target_course['code'] . "' AND user_id='" . $current_user_id . "' AND relation_type<>" . COURSE_RELATION_TYPE_RRHH . " ";
Database::query($sql_update2);
Database::query($sql_update1);
if (Database::affected_rows()) {
$result = true;
}
}
return $result;
}
@ -220,27 +225,27 @@ class Auth
$result = false;
foreach ($user_coursecategories as $key => $category) {
$category_id = $category['id'];
if ($category2move == $category_id) {
// source_course is the course where we clicked the up or down icon
if (count($target_category) > 0 && count($source_category) > 0) {
$sql_update1="UPDATE $table_user_defined_category SET sort='".Database::escape_string($target_category['sort'])."' WHERE id='".intval($source_category['id'])."' AND user_id='".$current_user_id."'";
$sql_update2="UPDATE $table_user_defined_category SET sort='".Database::escape_string($source_category['sort'])."' WHERE id='".intval($target_category['id'])."' AND user_id='".$current_user_id."'";
Database::query($sql_update2);
Database::query($sql_update1);
if (Database::affected_rows()) {
$result = true;
}
$sql_update1="UPDATE $table_user_defined_category SET sort='".Database::escape_string($target_category['sort'])."' WHERE id='".intval($source_category['id'])."' AND user_id='".$current_user_id."'";
$sql_update2="UPDATE $table_user_defined_category SET sort='".Database::escape_string($source_category['sort'])."' WHERE id='".intval($target_category['id'])."' AND user_id='".$current_user_id."'";
Database::query($sql_update2);
Database::query($sql_update1);
if (Database::affected_rows()) {
$result = true;
}
}
return $result;
}
@ -248,14 +253,14 @@ class Auth
/**
* Retrieves the user defined course categories and all the info that goes with it
* @return array containing all the info of the user defined courses categories with the id as key of the array
*/
*/
public function get_user_course_categories_info() {
$sql_delete = "DELETE FROM $tucc WHERE id='".$category_id."' and user_id='".$current_user_id."'";
$sql_delete = "DELETE FROM $tucc WHERE id='".$category_id."' and user_id='".$current_user_id."'";
Database::query($sql_delete);
if (Database::affected_rows()) { $result = true; }
$sql_update = "UPDATE $TABLECOURSUSER SET user_course_cat='0' WHERE user_course_cat='".$category_id."' AND user_id='".$current_user_id."' AND relation_type<>".COURSE_RELATION_TYPE_RRHH." ";
Database::query($sql_update);
if (Database::affected_rows()) {
$result = true;
}
$sql_update = "UPDATE $TABLECOURSUSER SET user_course_cat='0' WHERE user_course_cat='" . $category_id . "' AND user_id='" . $current_user_id . "' AND relation_type<>" . COURSE_RELATION_TYPE_RRHH . " ";
Database::query($sql_update);
return $result;
}
@ -301,7 +310,7 @@ class Auth
* unsubscribe the user from a given course
* @param string Course code
* @return bool True if it success
*/
*/
public function remove_user_from_course($course_code) {
$sql_find = "SELECT * FROM $TABLECOURS WHERE (code LIKE '%".$search_term_safe."%' OR title LIKE '%".$search_term_safe."%' OR tutor_name LIKE '%".$search_term_safe."%') $without_special_courses ORDER BY title, visual_code ASC";
$sql_find = "SELECT * FROM $TABLECOURS WHERE (code LIKE '%".$search_term_safe."%' OR title LIKE '%".$search_term_safe."%' OR tutor_name LIKE '%".$search_term_safe."%') $without_special_courses ORDER BY title, visual_code ASC";
$sql_find = "SELECT * FROM $TABLECOURS as course INNER JOIN $tbl_url_rel_course as url_rel_course
ON (url_rel_course.course_code=course.code)
WHERE access_url_id = $url_access_id AND (code LIKE '%".$search_term_safe."%' OR title LIKE '%".$search_term_safe."%' OR tutor_name LIKE '%".$search_term_safe."%' ) $without_special_courses ORDER BY title, visual_code ASC ";
}
WHERE access_url_id = $url_access_id AND (code LIKE '%".$search_term_safe."%' OR title LIKE '%".$search_term_safe."%' OR tutor_name LIKE '%".$search_term_safe."%' ) $without_special_courses ORDER BY title, visual_code ASC ";
}
}
$result_find = Database::query($sql_find);
$courses = array();
while ($row = Database::fetch_array($result_find)) {
$TheXMLImportLetYouAddMoreInfoAndCreateResources = "The XML import lets you add more info and create resources (courses, users). The CSV import will only create sessions and let you assign existing resources to them.";
$ShowLinkBugNotificationTitle = "Show link to report bug";
$ShowLinkBugNotificationComment = "Show a link in the header to report a bug inside of our support platform (http://support.chamilo.org). When clicking on the link, the user is sent to the support platform, on a wiki page that describes the bug reporting process.";
@ -1265,6 +1267,7 @@ $GradebookActivateScoreDisplayCustom = "Enable competence level labelling in ord
$YouMustAcceptLicence = "You must accept the licence";
$SelectOne = "Select one";
$ContactInformationHasBeenSent = "Contact information has been sent";
$UserInactivedSinceX = "User inactive since %s";
$ContactInformationDescription = "Dear user,<br/>
<br/>You are about to start using one of the best open-source e-learning platform on the market. Like many other open-source project, this project is backed up by a large community of students, teachers, developers and content creators who would like to promote the project better.<br/>
está a punto de instalar una de las mejores plataformas e-learning de código abierto que existen en el mercado. Al igual de muchos otros proyectos de código abierto, Chamilo está respaldado por una amplia comunidad de profesores, estudiantes, desarrolladores y creadores de contenido.
Julio Montoya
13 years ago