mirror of
https://github.com/moodle/moodle.git
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311 lines
12 KiB
PHP
311 lines
12 KiB
PHP
<?php
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/**
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* SQL.PHP
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* This file is include from view.php and print.php
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* @version $Id$
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* @copyright 2003
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**/
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/// Creating the SQL statements
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/// Initialise some variables
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$sqlorderby = '';
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$sqlsortkey = NULL;
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$textlib = textlib_get_instance();
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/// Pivot is the field that set the break by groups (category, initial, author name, etc)
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/// fullpivot indicate if the whole pivot should be compared agasint the db or just the first letter
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/// printpivot indicate if the pivot should be printed or not
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$as = sql_as(); ///To use or no the AS keyword on column aliases
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switch ( $sortkey ) {
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case "CREATION":
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$sqlsortkey = "timecreated";
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break;
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case "UPDATE":
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$sqlsortkey = "timemodified";
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break;
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}
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$sqlsortorder = $sortorder;
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$fullpivot = 1;
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$userid = '';
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if ( !empty($USER->id) ) {
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$userid = "OR ge.userid = $USER->id";
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}
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switch ($tab) {
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case GLOSSARY_CATEGORY_VIEW:
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if ($hook == GLOSSARY_SHOW_ALL_CATEGORIES ) {
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$sqlselect = "SELECT gec.id, ge.*, gec.entryid, gc.name $as pivot";
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$sqlfrom = "FROM {$CFG->prefix}glossary_entries ge,
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{$CFG->prefix}glossary_entries_categories gec,
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{$CFG->prefix}glossary_categories gc";
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$sqlwhere = "WHERE (ge.glossaryid = '$glossary->id' OR ge.sourceglossaryid = '$glossary->id') AND
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ge.id = gec.entryid AND gc.id = gec.categoryid AND
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(ge.approved != 0 $userid)";
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$sqlorderby = ' ORDER BY gc.name, ge.concept';
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} elseif ($hook == GLOSSARY_SHOW_NOT_CATEGORISED ) {
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$printpivot = 0;
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$sqlselect = "SELECT ge.*, concept $as pivot";
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$sqlfrom = "FROM {$CFG->prefix}glossary_entries ge LEFT JOIN {$CFG->prefix}glossary_entries_categories gec
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ON ge.id = gec.entryid";
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$sqlwhere = "WHERE (glossaryid = '$glossary->id' OR sourceglossaryid = '$glossary->id') AND
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(ge.approved != 0 $userid) AND gec.entryid IS NULL";
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$sqlorderby = ' ORDER BY concept';
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} else {
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$printpivot = 0;
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$sqlselect = "SELECT ge.*, ce.entryid, c.name $as pivot";
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$sqlfrom = "FROM {$CFG->prefix}glossary_entries ge, {$CFG->prefix}glossary_entries_categories ce, {$CFG->prefix}glossary_categories c";
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$sqlwhere = "WHERE ge.id = ce.entryid AND ce.categoryid = '$hook' AND
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ce.categoryid = c.id AND ge.approved != 0 AND
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(ge.glossaryid = '$glossary->id' OR ge.sourceglossaryid = '$glossary->id') AND
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(ge.approved != 0 $userid)";
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$sqlorderby = ' ORDER BY c.name, ge.concept';
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}
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break;
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case GLOSSARY_AUTHOR_VIEW:
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$where = '';
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switch ($CFG->dbtype) {
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case 'postgres7':
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$usernametoshow = "u.firstname || ' ' || u.lastname";
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if ( $sqlsortkey == 'FIRSTNAME' ) {
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$usernamefield = "u.firstname || ' ' || u.lastname";
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} else {
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$usernamefield = "u.lastname || ' ' || u.firstname";
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}
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$where = "AND substr(upper($usernamefield),1," . $textlib->strlen($hook, current_charset()) . ") = '" . $textlib->strtoupper($hook, current_charset()) . "'";
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break;
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case 'mysql':
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if ( $sqlsortkey == 'FIRSTNAME' ) {
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$usernamefield = sql_fullname('u.firstname' , 'u.lastname');
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} else {
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$usernamefield = sql_fullname('u.lastname' , 'u.firsttname');
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}
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$where = "AND left(ucase($usernamefield)," . $textlib->strlen($hook, current_charset()) . ") = '$hook'";
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break;
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}
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if ( $hook == 'ALL' ) {
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$where = '';
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}
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$sqlselect = "SELECT ge.id, $usernamefield $as pivot, u.id as uid, ge.*";
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$sqlfrom = "FROM {$CFG->prefix}glossary_entries ge, {$CFG->prefix}user u";
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$sqlwhere = "WHERE ge.userid = u.id AND
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(ge.approved != 0 $userid)
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$where AND
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(ge.glossaryid = '$glossary->id' OR ge.sourceglossaryid = '$glossary->id')";
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$sqlorderby = "ORDER BY $usernamefield $sqlsortorder, ge.concept";
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break;
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case GLOSSARY_APPROVAL_VIEW:
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$fullpivot = 0;
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$printpivot = 0;
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$where = '';
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if ($hook != 'ALL' and $hook != 'SPECIAL') {
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switch ($CFG->dbtype) {
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case 'postgres7':
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$where = 'AND substr(upper(concept),1,' . $textlib->strlen($hook, current_charset()) . ') = \'' . $textlib->strtoupper($hook, current_charset()) . '\'';
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break;
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case 'mysql':
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$where = 'AND left(ucase(concept),' . $textlib->strlen($hook, current_charset()) . ") = '$hook'";
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break;
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}
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}
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$sqlselect = "SELECT ge.*, ge.concept $as pivot";
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$sqlfrom = "FROM {$CFG->prefix}glossary_entries ge";
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$sqlwhere = "WHERE (ge.glossaryid = '$glossary->id' OR ge.sourceglossaryid = '$glossary->id') AND
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ge.approved = 0 $where";
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if ( $sqlsortkey ) {
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$sqlorderby = "ORDER BY $sqlsortkey $sqlsortorder";
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} else {
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$sqlorderby = "ORDER BY ge.concept";
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}
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break;
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case GLOSSARY_DATE_VIEW:
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$printpivot = 0;
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case GLOSSARY_STANDARD_VIEW:
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default:
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$sqlselect = "SELECT ge.*, ge.concept $as pivot";
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$sqlfrom = "FROM {$CFG->prefix}glossary_entries ge";
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$where = '';
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$fullpivot = 0;
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$LIKE = sql_ilike();
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$NOTLIKE = 'NOT ' . $LIKE;
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switch ( $mode ) {
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case 'search':
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/// Some differences in syntax for PostgreSQL
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if ($CFG->dbtype == "postgres7") {
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$REGEXP = "~*";
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$NOTREGEXP = "!~*";
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} else {
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$REGEXP = "REGEXP";
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$NOTREGEXP = "NOT REGEXP";
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}
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$conceptsearch = "";
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$aliassearch = "";
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$definitionsearch = "";
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$searchterms = explode(" ",$hook);
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foreach ($searchterms as $searchterm) {
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if ($conceptsearch) {
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$conceptsearch .= " AND ";
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}
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if ($aliassearch) {
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$aliassearch .= " AND ";
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}
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if ($definitionsearch) {
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$definitionsearch .= " AND ";
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}
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if (substr($searchterm,0,1) == "+") {
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$searchterm = substr($searchterm,1);
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$conceptsearch .= " ge.concept $REGEXP '(^|[^a-zA-Z0-9])$searchterm([^a-zA-Z0-9]|$)' ";
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$aliassearch .= " al.alias $REGEXP '(^|[^a-zA-Z0-9])$searchterm([^a-zA-Z0-9]|$)' ";
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$definitionsearch .= " ge.definition $REGEXP '(^|[^a-zA-Z0-9])$searchterm([^a-zA-Z0-9]|$)' ";
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} else if (substr($searchterm,0,1) == "-") {
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$searchterm = substr($searchterm,1);
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$conceptsearch .= " ge.concept $NOTREGEXP '(^|[^a-zA-Z0-9])$searchterm([^a-zA-Z0-9]|$)' ";
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$aliassearch .= " al.alias $NOTREGEXP '(^|[^a-zA-Z0-9])$searchterm([^a-zA-Z0-9]|$)' ";
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$definitionsearch .= " ge.definition $NOTREGEXP '(^|[^a-zA-Z0-9])$searchterm([^a-zA-Z0-9]|$)' ";
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} else {
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$conceptsearch .= " ge.concept $LIKE '%$searchterm%' ";
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$aliassearch .= " al.alias $LIKE '%$searchterm%' ";
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$definitionsearch .= " ge.definition $LIKE '%$searchterm%' ";
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}
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}
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//Search in aliases first
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$idaliases = '';
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$listaliases = array();
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$recaliases = get_records_sql ("SELECT al.id, al.entryid
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FROM {$CFG->prefix}glossary_alias al,
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{$CFG->prefix}glossary_entries ge
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WHERE (ge.glossaryid = '$glossary->id' OR
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ge.sourceglossaryid = '$glossary->id') AND
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(ge.approved != 0 $userid) AND
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ge.id = al.entryid AND
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$aliassearch");
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//Process aliases id
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if ($recaliases) {
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foreach ($recaliases as $recalias) {
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$listaliases[] = $recalias->entryid;
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}
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$idaliases = implode (',',$listaliases);
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}
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//Add seach conditions in concepts and, if needed, in definitions
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$printpivot = 0;
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$where = "AND (( $conceptsearch) ";
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//Include aliases id if found
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if (!empty($idaliases)) {
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$where .= " OR ge.id IN ($idaliases) ";
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}
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//Include search in definitions if requested
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if ( $fullsearch ) {
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$where .= " OR ($definitionsearch) )";
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} else {
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$where .= ")";
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}
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break;
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case 'term':
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$printpivot = 0;
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$sqlfrom .= " left join {$CFG->prefix}glossary_alias ga on ge.id = ga.entryid ";
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$where = "AND (ge.concept = '$hook' OR ga.alias = '$hook' )
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";
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break;
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case 'entry':
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$printpivot = 0;
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$where = "AND ge.id = '$hook'";
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break;
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case 'letter':
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if ($hook != 'ALL' and $hook != 'SPECIAL') {
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switch ($CFG->dbtype) {
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case 'postgres7':
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$where = 'AND substr(upper(concept),1,' . $textlib->strlen($hook, current_charset()) . ') = \'' . $textlib->strtoupper($hook, current_charset()) . '\'';
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break;
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case 'mysql':
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$where = 'AND left(ucase(concept),' . $textlib->strlen($hook, current_charset()) . ") = '" . $textlib->strtoupper($hook, current_charset()) . "'";
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break;
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}
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}
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if ($hook == 'SPECIAL') {
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//Create appropiate IN contents
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$alphabet = explode(",", get_string("alphabet"));
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$sqlalphabet = '';
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for ($i = 0; $i < count($alphabet); $i++) {
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if ($i != 0) {
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$sqlalphabet .= ',';
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}
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$sqlalphabet .= '\''.$alphabet[$i].'\'';
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}
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switch ($CFG->dbtype) {
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case 'postgres7':
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$where = 'AND substr(upper(concept),1,1) NOT IN (' . $textlib->strtoupper($sqlalphabet, current_charset()) . ')';
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break;
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case 'mysql':
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$where = 'AND left(ucase(concept),1) NOT IN (' . $textlib->strtoupper($sqlalphabet, current_charset()) . ')';
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break;
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}
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}
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break;
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}
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$sqlwhere = "WHERE (ge.glossaryid = '$glossary->id' or ge.sourceglossaryid = '$glossary->id') AND
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(ge.approved != 0 $userid)
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$where";
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switch ( $tab ) {
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case GLOSSARY_DATE_VIEW:
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$sqlorderby = "ORDER BY $sqlsortkey $sqlsortorder";
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break;
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case GLOSSARY_STANDARD_VIEW:
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$sqlorderby = "ORDER BY ge.concept";
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default:
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break;
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}
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break;
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}
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$count = count_records_sql("select count(*) $sqlfrom $sqlwhere");
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$sqllimit = '';
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if ( $offset >= 0 ) {
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switch ($CFG->dbtype) {
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case 'postgres7':
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$sqllimit = " LIMIT $entriesbypage OFFSET $offset";
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break;
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case 'mysql':
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$sqllimit = " LIMIT $offset, $entriesbypage";
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break;
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}
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}
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$allentries = get_records_sql("$sqlselect $sqlfrom $sqlwhere $sqlorderby $sqllimit");
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?>
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