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questtypes/dragndrop/DragndropQuesttypeModel.inc
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285
questtypes/dragndrop/DragndropQuesttypeModel.inc
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<?php
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/**
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* The Legend of Z
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*
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* @author Oliver Hanraths <oliver.hanraths@uni-duesseldorf.de>
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* @copyright 2014 Heinrich-Heine-Universität Düsseldorf
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* @license http://www.gnu.org/licenses/gpl.html
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* @link https://bitbucket.org/coderkun/the-legend-of-z
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*/
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namespace hhu\z\questtypes;
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/**
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* Model of the DragndropQuesttypeAgent for Drag&Drop.
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*
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* @author Oliver Hanraths <oliver.hanraths@uni-duesseldorf.de>
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*/
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class DragndropQuesttypeModel extends \hhu\z\models\QuesttypeModel
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{
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/**
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* Required models
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*
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* @var array
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*/
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public $models = array('media');
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/**
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* Copy a Quest
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*
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* @param int $userId ID of creating user
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* @param int $sourceQuestId ID of Quest to copy from
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* @param int $targetQuestId ID of Quest to copy to
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* @param int $seminaryMediaIds Mapping of SeminaryMedia-IDs from source Seminary to targetSeminary
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*/
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public function copyQuest($userId, $sourceQuestId, $targetQuestId, $seminaryMediaIds)
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{
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// Check Seminary media
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if(is_null($seminaryMediaIds)) {
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return;
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}
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// Get Dragndrop
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$dragndrop = $this->getDragndrop($sourceQuestId);
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// Copy media
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$this->Media->copyQuestsmedia($userId, $seminaryMediaIds[$dragndrop['questmedia_id']]);
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// Copy dran&drop
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$this->db->query(
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'INSERT INTO questtypes_dragndrop '.
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'(quest_id, created_user_id, questmedia_id, width, height) '.
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'SELECT ?, ?, ?, width, height '.
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'FROM questtypes_dragndrop '.
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'WHERE quest_id = ?',
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'iiii',
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$targetQuestId, $userId, $seminaryMediaIds[$dragndrop['questmedia_id']],
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$sourceQuestId
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);
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// Copy drags
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$dragIds = array();
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$drags = $this->getDrags($sourceQuestId);
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foreach($drags as &$drag)
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{
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// Copy media
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$this->Media->copyQuestsmedia($userId, $seminaryMediaIds[$drag['questmedia_id']]);
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// Copy drag
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$this->db->query(
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'INSERT INTO questtypes_dragndrop_drags '.
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'(questtypes_dragndrop_id, questmedia_id) '.
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'SELECT ?, ? '.
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'FROM questtypes_dragndrop_drags '.
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'WHERE id = ?',
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'iii',
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$targetQuestId, $seminaryMediaIds[$drag['questmedia_id']],
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$drag['id']
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);
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$dragIds[$drag['id']] = $this->db->getInsertId();
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}
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// Copy drops
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$dropIds = array();
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$drops = $this->getDrops($sourceQuestId);
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foreach($drops as &$drop)
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{
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// Copy drop
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$this->db->query(
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'INSERT INTO questtypes_dragndrop_drops '.
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'(questtypes_dragndrop_id, top, `left`, width, height) '.
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'SELECT ?, top, `left`, width, height '.
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'FROM questtypes_dragndrop_drops '.
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'WHERE id = ?',
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'ii',
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$targetQuestId,
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$drop['id']
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);
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$dropIds[$drop['id']] = $this->db->getInsertId();
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// Link drags and drops
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$links = $this->db->query(
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'SELECT questtypes_dragndrop_drag_id '.
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'FROM questtypes_dragndrop_drops_drags '.
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'WHERE questtypes_dragndrop_drop_id = ?',
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'i',
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$drop['id']
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);
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foreach($links as $link)
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{
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$this->db->query(
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'INSERT INTO questtypes_dragndrop_drops_drags '.
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'(questtypes_dragndrop_drop_id, questtypes_dragndrop_drag_id, created_user_id) '.
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'VALUES '.
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'(?, ?, ?)',
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'iii',
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$dropIds[$drop['id']],
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$dragIds[$link['questtypes_dragndrop_drag_id']],
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$userId
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);
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}
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}
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}
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/**
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* Get Drag&Drop-field.
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*
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* @param int $questId ID of Quest
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* @return array Drag&Drop-field
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*/
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public function getDragndrop($questId)
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{
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$data = $this->db->query(
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'SELECT quest_id, questmedia_id, width, height '.
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'FROM questtypes_dragndrop '.
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'WHERE quest_id = ?',
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'i',
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$questId
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);
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if(!empty($data)) {
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return $data[0];
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}
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return null;
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}
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/**
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* Get Drop-items.
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*
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* @param int $dragndropId ID of Drag&Drop-field
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* @return array Drop-items
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*/
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public function getDrops($dragndropId)
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{
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return $this->db->query(
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'SELECT id, top, `left`, width, height '. //, questtypes_dragndrop_drag_id '.
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'FROM questtypes_dragndrop_drops '.
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'WHERE questtypes_dragndrop_id = ?',
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'i',
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$dragndropId
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);
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}
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/**
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* Get Drag-items.
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*
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* @param int $dragndropId ID of Drag&Drop-field
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* @param boolean $onlyUsed Only Drag-items that are used for a Drop-item
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* @return array Drag-items
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*/
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public function getDrags($dragndropId, $onlyUsed=false)
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{
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return $this->db->query(
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'SELECT id, questmedia_id '.
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'FROM questtypes_dragndrop_drags '.
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'WHERE questtypes_dragndrop_id = ?'.
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($onlyUsed
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? ' AND EXISTS ('.
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'SELECT questtypes_dragndrop_drag_id '.
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'FROM questtypes_dragndrop_drops_drags '.
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'WHERE questtypes_dragndrop_drag_id = questtypes_dragndrop_drags.id'.
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')'
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: null
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),
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'i',
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$dragndropId
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);
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}
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/**
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* Check if a Drag-item mathes a Drop-item.
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*
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* @param int $dragId ID of Drag-field
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* @param int $dropId ID of Drop-field
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* @return boolean Drag-item is valid for Drop-item
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*/
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public function dragMatchesDrop($dragId, $dropId)
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{
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$data = $this->db->query(
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'SELECT count(*) AS c '.
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'FROM questtypes_dragndrop_drops_drags '.
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'WHERE questtypes_dragndrop_drop_id = ? AND questtypes_dragndrop_drag_id = ?',
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'ii',
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$dropId, $dragId
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);
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if(!empty($data)) {
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return ($data[0]['c'] > 0);
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}
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return false;
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}
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/**
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* Save Character’s submitted answer for one Drop-field.
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*
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* @param int $dropId ID of Drop-field
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* @param int $characterId ID of Character
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* @param string $answer Submitted Drag-field-ID for this field
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*/
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public function setCharacterSubmission($dropId, $characterId, $answer)
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{
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if(is_null($answer))
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{
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$this->db->query(
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'DELETE FROM questtypes_dragndrop_drops_characters '.
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'WHERE questtypes_dragndrop_drop_id = ? AND character_id = ?',
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'ii',
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$dropId, $characterId
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);
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}
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else
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{
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$this->db->query(
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'INSERT INTO questtypes_dragndrop_drops_characters '.
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'(questtypes_dragndrop_drop_id, character_id, questtypes_dragndrop_drag_id) '.
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'VALUES '.
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'(?, ?, ?) '.
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'ON DUPLICATE KEY UPDATE '.
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'questtypes_dragndrop_drag_id = ?',
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'iiii',
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$dropId, $characterId, $answer, $answer
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);
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}
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}
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/**
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* Get Character’s saved answer for one Drop-field.
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*
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* @param int $dropId ID of Drop-field
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* @param int $characterId ID of Character
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* @return int ID of Drag-field or null
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*/
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public function getCharacterSubmission($dropId, $characterId)
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{
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$data = $this->db->query(
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'SELECT questtypes_dragndrop_drag_id '.
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'FROM questtypes_dragndrop_drops_characters '.
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'WHERE questtypes_dragndrop_drop_id = ? AND character_id = ?',
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'ii',
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$dropId, $characterId
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);
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if(!empty($data)) {
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return $data[0]['questtypes_dragndrop_drag_id'];
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}
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return null;
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}
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}
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?>
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