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Questtype ?Drag&Drop?: implement multiple valid Drag-items for each Drop-item

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coderkun 2014-04-19 23:20:08 +02:00
commit d432b69a5e
3 changed files with 47 additions and 9 deletions
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40
questtypes/dragndrop/DragndropQuesttypeModel.inc
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@ -56,7 +56,7 @@
public function getDrops($dragndropId)
{
return $this->db->query(
'SELECT id, top, `left`, width, height, questtypes_dragndrop_drag_id '.
'SELECT id, top, `left`, width, height '. //, questtypes_dragndrop_drag_id '.
'FROM questtypes_dragndrop_drops '.
'WHERE questtypes_dragndrop_id = ?',
'i',
@ -69,20 +69,54 @@
* Get Drag-items.
*
* @param int $dragndropId ID of Drag&Drop-field
* @param boolean $onlyUsed Only Drag-items that are used for a Drop-item
* @return array Drag-items
*/
public function getDrags($dragndropId)
public function getDrags($dragndropId, $onlyUsed=false)
{
return $this->db->query(
'SELECT id, questmedia_id '.
'FROM questtypes_dragndrop_drags '.
'WHERE questtypes_dragndrop_id = ?',
'WHERE questtypes_dragndrop_id = ?'.
($onlyUsed
? ' AND EXISTS ('.
'SELECT questtypes_dragndrop_drag_id '.
'FROM questtypes_dragndrop_drops_drags '.
'WHERE questtypes_dragndrop_drag_id = questtypes_dragndrop_drags.id'.
')'
: null
),
'i',
$dragndropId
);
}
/**
* Check if a Drag-item mathes a Drop-item.
*
* @param int $dragId ID of Drag-field
* @param int $dropId ID of Drop-field
* @return boolean Drag-item is valid for Drop-item
*/
public function dragMatchesDrop($dragId, $dropId)
{
$data = $this->db->query(
'SELECT count(*) AS c '.
'FROM questtypes_dragndrop_drops_drags '.
'WHERE questtypes_dragndrop_drop_id = ? AND questtypes_dragndrop_drag_id = ?',
'ii',
$dropId, $dragId
);
if(!empty($data)) {
return ($data[0]['c'] > 0);
}
return false;
}
/**
* Save Character’s submitted answer for one Drop-field.
*