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239 lines
9.8 KiB
PHP
239 lines
9.8 KiB
PHP
<?PHP //$Id$
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//This php script contains all the stuff to backup/restore
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//glossary mods
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//This is the "graphical" structure of the glossary mod:
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//
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// glossary ---------------------- glossary_categories
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// (CL,pk->id) (CL,pk->id,fk->glossaryid)
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// | |
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// | |
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// | |
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// glossary_entries -------------- glossary_entries_categories
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// (UL,pk->id, fk->glossaryid, files) (UL, [pk->categoryid,entryid]
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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 glossary_backup_mods($bf,$preferences) {
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global $CFG;
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$status = true;
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//Iterate over glossary table
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$glossaries = get_records ("glossary","course",$preferences->backup_course,"id");
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if ($glossaries) {
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foreach ($glossaries as $glossary) {
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//Start mod
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fwrite ($bf,start_tag("MOD",3,true));
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//Print glossary data
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fwrite ($bf,full_tag("ID",4,false,$glossary->id));
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fwrite ($bf,full_tag("MODTYPE",4,false,"glossary"));
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fwrite ($bf,full_tag("NAME",4,false,$glossary->name));
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fwrite ($bf,full_tag("STUDENTCANPOST",4,false,$glossary->studentcanpost));
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fwrite ($bf,full_tag("ALLOWDUPLICATEDENTRIES",4,false,$glossary->allowduplicatedentries));
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fwrite ($bf,full_tag("DISPLAYFORMAT",4,false,$glossary->displayformat));
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fwrite ($bf,full_tag("MAINGLOSSARY",4,false,$glossary->mainglossary));
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fwrite ($bf,full_tag("SHOWSPECIAL",4,false,$glossary->showspecial));
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fwrite ($bf,full_tag("SHOWALPHABET",4,false,$glossary->showalphabet));
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fwrite ($bf,full_tag("SHOWALL",4,false,$glossary->showall));
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fwrite ($bf,full_tag("TIMECREATED",4,false,$glossary->timecreated));
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fwrite ($bf,full_tag("TIMEMODIFIED",4,false,$glossary->timemodified));
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backup_glossary_entries($bf,$preferences,$glossary->id, $preferences->mods["glossary"]->userinfo);
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backup_glossary_categories($bf,$preferences,$glossary->id, $preferences->mods["glossary"]->userinfo);
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//End mod
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$status =fwrite ($bf,end_tag("MOD",3,true));
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}
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}
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return $status;
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}
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//Backup glossary_categories and entries_categories contents (executed from glossary_backup_mods)
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function backup_glossary_categories ($bf,$preferences,$glossary, $userinfo) {
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global $CFG;
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$status = true;
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$glossary_categories = get_records("glossary_categories","glossaryid",$glossary,"id");
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//If there is categories
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if ($glossary_categories) {
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$status =fwrite ($bf,start_tag("CATEGORIES",4,true));
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//Iterate over each category
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foreach ($glossary_categories as $glo_cat) {
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//Start category
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//Print category contents
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$status =fwrite ($bf,start_tag("CATEGORY",5,true));
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fwrite ($bf,full_tag("ID",6,false,$glo_cat->id));
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fwrite ($bf,full_tag("GLOSSARYID",6,false,$glo_cat->glossaryid));
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fwrite ($bf,full_tag("NAME",6,false,$glo_cat->name));
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$entries = get_records("glossary_entries_categories","categoryid",$glo_cat->id,"entryid");
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if ($entries) {
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$status =fwrite ($bf,start_tag("ENTRIES",6,true));
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foreach ($entries as $entry) {
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fwrite ($bf,start_tag("ENTRY",7,true));
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fwrite ($bf,full_tag("ENTRYID",8,false,$entry->entryid));
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$status =fwrite ($bf,end_tag("ENTRY",7,true));
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}
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$status =fwrite ($bf,end_tag("ENTRIES",6,true));
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}
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$status =fwrite ($bf,end_tag("CATEGORY",5,true));
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}
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//Write end tag
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$status =fwrite ($bf,end_tag("CATEGORIES",4,true));
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}
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return $status;
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}
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//Backup glossary_entries contents (executed from glossary_backup_mods)
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function backup_glossary_entries ($bf,$preferences,$glossary, $userinfo) {
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global $CFG;
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$status = true;
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$glossary_entries = get_records("glossary_entries","glossaryid",$glossary,"id");
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//If there is submissions
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if ($glossary_entries) {
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$dumped_entries = 0;
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//Iterate over each entry
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foreach ($glossary_entries as $glo_ent) {
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//Start entry
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//Print submission contents
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if ($glo_ent->teacherentry or $userinfo) {
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$dumped_entries++;
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if ($dumped_entries == 1) {
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//Write start tag
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$status =fwrite ($bf,start_tag("ENTRIES",4,true));
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}
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$status =fwrite ($bf,start_tag("ENTRY",5,true));
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fwrite ($bf,full_tag("ID",6,false,$glo_ent->id));
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fwrite ($bf,full_tag("USERID",6,false,$glo_ent->userid));
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fwrite ($bf,full_tag("CONCEPT",6,false,$glo_ent->concept));
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fwrite ($bf,full_tag("DEFINITION",6,false,$glo_ent->definition));
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fwrite ($bf,full_tag("FORMAT",6,false,$glo_ent->format));
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fwrite ($bf,full_tag("ATTACHMENT",6,false,$glo_ent->attachment));
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fwrite ($bf,full_tag("TIMECREATED",6,false,$glo_ent->timecreated));
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fwrite ($bf,full_tag("TIMEMODIFIED",6,false,$glo_ent->timemodified));
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fwrite ($bf,full_tag("TEACHERENTRY",6,false,$glo_ent->teacherentry));
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$status =fwrite ($bf,end_tag("ENTRY",5,true));
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//Now include entry attachment in backup (if it exists)
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if ($glo_ent->attachment) {
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$status = backup_glossary_files($bf,$preferences,$glossary,$glo_ent->id);
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}
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}
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}
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if ( $dumped_entries > 0 ) {
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//Write end tag
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$status =fwrite ($bf,end_tag("ENTRIES",4,true));
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}
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}
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return $status;
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}
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//Backup glossary files because we've selected to backup user info
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//or current entry is a teacher entry
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function backup_glossary_files($bf,$preferences,$glossary,$entry) {
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global $CFG;
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$status = true;
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//First we check to moddata exists and create it as necessary
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//in temp/backup/$backup_code dir
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$status = check_and_create_moddata_dir($preferences->backup_unique_code);
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//Now we check that moddata/glossary dir exists and create it as necessary
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//in temp/backup/$backup_code/moddata dir
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$glo_dir_to = $CFG->dataroot."/temp/backup/".$preferences->backup_unique_code.
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"/".$CFG->moddata."/glossary";
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//Let's create it as necessary
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$status = check_dir_exists($glo_dir_to,true);
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//Now we check that the moddata/glossary/$glossary dir exists and create it as necessary
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//in temp/backup/$backup_code/moddata/glossary
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$status = check_dir_exists($glo_dir_to."/".$glossary,true);
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//Now copy the moddata/glossary/$glossary/$entry to
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//temp/backup/$backup_code/moddata/glossary/$glossary/$entry
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if ($status) {
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//Calculate moddata/glossary dir
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$glo_dir_from = $CFG->dataroot."/".$preferences->backup_course."/".$CFG->moddata."/glossary";
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//Only if it exists !!
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if (is_dir($glo_dir_from."/".$glossary."/".$entry)) {
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$status = backup_copy_file($glo_dir_from."/".$glossary."/".$entry,
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$glo_dir_to."/".$glossary."/".$entry);
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}
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}
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return $status;
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}
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////Return an array of info (name,value)
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function glossary_check_backup_mods($course,$user_data=false,$backup_unique_code) {
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//First the course data
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$info[0][0] = get_string("modulenameplural","glossary");
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if ($ids = glossary_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 ($user_data) {
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$info[1][0] = get_string("concepts","glossary");
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if ($ids = glossary_entries_ids_by_course ($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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}
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return $info;
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}
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// INTERNAL FUNCTIONS. BASED IN THE MOD STRUCTURE
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//Returns an array of glossaries id
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function glossary_ids ($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}glossary a
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WHERE a.course = '$course'");
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}
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//Returns an array of glossary_answers id
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function glossary_entries_ids_by_course ($course) {
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global $CFG;
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return get_records_sql ("SELECT s.id , s.glossaryid
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FROM {$CFG->prefix}glossary_entries s,
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{$CFG->prefix}glossary a
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WHERE a.course = '$course' AND
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s.glossaryid = a.id");
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}
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?>
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