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question bank: MDL-14434 Cannot edit the only question category in a context.

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tjhunt
2008-11-27 11:50:20 +00:00
parent 761e1f5cb5
commit 901c4aae9f
5 changed files with 65 additions and 44 deletions
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question/editlib.php
+25 -8
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@@ -76,17 +76,31 @@ function get_questions_category( $category, $noparent=false, $recurse=true, $exp
return $qresults;
}
function question_can_delete_cat($todelete){
/**
* @param integer $categoryid a category id.
* @return boolean whether this is the only top-level category in a context.
*/
function question_is_only_toplevel_category_in_context($categoryid) {
global $CFG;
$record = get_record_sql("SELECT count(*) as count, c1.contextid as contextid FROM {$CFG->prefix}question_categories c1,
{$CFG->prefix}question_categories c2 WHERE c2.id = $todelete
AND c1.contextid = c2.contextid GROUP BY c1.contextid");
$contextid = $record->contextid;
$count = $record->count;
if ($count < 2) {
return 1 == count_records_sql("
SELECT count(*)
FROM {$CFG->prefix}question_categories c1,
{$CFG->prefix}question_categories c2
WHERE c2.id = $categoryid
AND c1.contextid = c2.contextid
AND c1.parent = 0 AND c2.parent = 0");
}
/**
* Check whether this user is allowed to delete this category.
*
* @param integer $todelete a category id.
*/
function question_can_delete_cat($todelete) {
if (question_is_only_toplevel_category_in_context($todelete)) {
error('You can\'t delete that category it is the default category for this context.');
} else {
$contextid = get_field('question_categories', 'contextid', 'id', $todelete);
require_capability('moodle/question:managecategory', get_context_instance_by_id($contextid));
}
}
@@ -704,6 +718,9 @@ function question_edit_setup($edittab, $requirecmid = false, $requirecourseid =
//category list page
$pagevars['cpage'] = optional_param('cpage', 1, PARAM_INT);
if ($pagevars['cpage'] < 1) {
$pagevars['cpage'] = 1;
}
if ($pagevars['cpage'] != 1){
$thispageurl->param('cpage', $pagevars['cpage']);
}