mirror of
https://github.com/moodle/moodle.git
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152 lines
5.5 KiB
PHP
152 lines
5.5 KiB
PHP
<?PHP //$Id$
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//This php script contains all the stuff to backup/restore
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//forum mods
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//This is the "graphical" structure of the forum mod:
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//
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// forum
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// (CL,pk->id)
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// |
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// -----------------------------------
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// | |
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// subscriptions forum_discussions
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// (UL,pk->id, fk->forum) (UL,pk->id, fk->forum)
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// |
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// |
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// |
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// forum_posts
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// (UL,pk->id,fk->discussion,nt->parent,files)
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// |
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// |
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// |
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// forum_ratings
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// (UL,pk->id,fk->post)
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//
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// Meaning: pk->primary key field of the table
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// fk->foreign key to link with parent
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// nt->nested field (recursive data)
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// CL->course level info
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// UL->user level info
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// files->table may have files)
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//
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//-----------------------------------------------------------
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function forum_backup_mods() {
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print "hola";
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}
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////Return an array of info (name,value)
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function NO_forum_check_backup_mods($course,$user_data=false,$backup_unique_code) {
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//First the course data
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$info[0][0] = get_string("modulenameplural","forum");
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if ($ids = forum_ids ($course)) {
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$info[0][1] = count($ids);
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} else {
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$info[0][1] = 0;
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}
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//Now, if requested, the user_data
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if ($user_data) {
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//Subscriptions
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$info[1][0] = get_string("subscriptions","forum");
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if ($ids = forum_subscription_ids_by_course ($course)) {
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$info[1][1] = count($ids);
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} else {
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$info[1][1] = 0;
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}
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//Discussions
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$info[2][0] = get_string("discussions","forum");
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if ($ids = forum_discussion_ids_by_course ($course)) {
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$info[2][1] = count($ids);
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} else {
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$info[2][1] = 0;
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}
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//Posts
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$info[3][0] = get_string("posts","forum");
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if ($ids = forum_post_ids_by_course ($course)) {
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$info[3][1] = count($ids);
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} else {
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$info[3][1] = 0;
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}
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//Ratings
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$info[4][0] = get_string("ratings","forum");
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if ($ids = forum_rating_ids_by_course ($course)) {
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$info[4][1] = count($ids);
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} else {
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$info[4][1] = 0;
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}
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}
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return $info;
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}
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// INTERNAL FUNCTIONS. BASED IN THE MOD STRUCTURE
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//Returns an array of forums id
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function forum_ids ($course) {
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global $CFG;
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return get_records_sql ("SELECT a.id, a.course
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FROM {$CFG->prefix}forum a
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WHERE a.course = '$course'");
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}
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//Returns an array of forum subscriptions id
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function forum_subscription_ids_by_course ($course) {
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global $CFG;
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return get_records_sql ("SELECT s.id , s.forum
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FROM {$CFG->prefix}forum_subscriptions s,
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{$CFG->prefix}forum a
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WHERE a.course = '$course' AND
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s.forum = a.id");
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}
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//Returns an array of forum discussions id
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function forum_discussion_ids_by_course ($course) {
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global $CFG;
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return get_records_sql ("SELECT s.id , s.forum
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FROM {$CFG->prefix}forum_discussions s,
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{$CFG->prefix}forum a
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WHERE a.course = '$course' AND
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s.forum = a.id");
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}
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//Returns an array of forum posts id
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function forum_post_ids_by_course ($course) {
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global $CFG;
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return get_records_sql ("SELECT p.id , p.discussion, s.forum
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FROM {$CFG->prefix}forum_posts p,
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{$CFG->prefix}forum_discussions s,
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{$CFG->prefix}forum a
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WHERE a.course = '$course' AND
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s.forum = a.id AND
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p.discussion = s.id");
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}
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//Returns an array of ratings posts id
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function forum_rating_ids_by_course ($course) {
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global $CFG;
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return get_records_sql ("SELECT r.id, r.post, p.discussion, s.forum
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FROM {$CFG->prefix}forum_ratings r,
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{$CFG->prefix}forum_posts p,
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{$CFG->prefix}forum_discussions s,
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{$CFG->prefix}forum a
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WHERE a.course = '$course' AND
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s.forum = a.id AND
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p.discussion = s.id AND
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r.post = p.id");
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}
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?>
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