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<?php |
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/** |
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* This file is part of the Zemit Framework. |
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* |
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* (c) Zemit Team <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE.txt |
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* file that was distributed with this source code. |
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*/ |
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namespace Zemit\Mvc\Model\Behavior; |
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use Phalcon\Db\RawValue; |
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use Phalcon\Mvc\EntityInterface; |
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use Phalcon\Mvc\Model\Behavior; |
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use Phalcon\Mvc\ModelInterface; |
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use Zemit\Mvc\Model; |
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use Zemit\Mvc\Model\Behavior\Traits\ProgressTrait; |
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use Zemit\Mvc\Model\Behavior\Traits\SkippableTrait; |
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class Position extends Behavior |
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{ |
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use ProgressTrait; |
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use SkippableTrait; |
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public bool $progress = false; |
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public function setField(string $field): void |
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{ |
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$this->options['field'] = $field; |
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} |
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public function getField(): string |
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{ |
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return $this->options['field']; |
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} |
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public function setRawSql(bool $rawSql): void |
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{ |
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$this->options['rawSql'] = $rawSql; |
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} |
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public function getRawSql(): bool |
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{ |
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return $this->options['rawSql']; |
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} |
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public function hasProperty(ModelInterface $model, string $field): bool |
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{ |
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return property_exists($model, $field); |
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} |
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public function __construct(array $options = []) |
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{ |
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parent::__construct($options); |
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$this->setField($options['field'] ?? 'position'); |
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$this->setRawSql($options['rawSql'] ?? true); |
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} |
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/** |
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* Set the default position field value before validation |
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* Shift position+1 and position-1 to other records after save |
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*/ |
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public function notify(string $type, ModelInterface $model): ?bool |
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{ |
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if (!$this->isEnabled()) { |
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return null; |
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} |
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$field = $this->getField(); |
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$rawSql = $this->getRawSql(); |
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// skip if the current model doesn't have the position property defined |
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if (!$this->hasProperty($model, $field)) { |
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return null; |
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} |
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switch ($type) { |
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case 'beforeValidation': |
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$this->beforeValidation($model, $field); |
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break; |
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case 'afterSave': |
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$this->afterSave($model, $field, $rawSql); |
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break; |
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} |
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return true; |
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} |
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/** |
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* Force the current position to max(position)+1 if it's empty |
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* will only happen if the position field is present on the current model |
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*/ |
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public function beforeValidation(ModelInterface $model, string $field): void |
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{ |
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if (property_exists($model, $field) && $model instanceof EntityInterface) { |
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$positionValue = $model->readAttribute($field); |
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if (is_null($positionValue)) { |
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// if position field is empty, force current max(position)+1 |
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$lastRecord = $model::findFirst(['order' => $field . ' DESC']); |
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if ($lastRecord && assert($lastRecord instanceof $model)) { |
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$lastPosition = (int)$lastRecord->readAttribute($field); |
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$model->writeAttribute($field, $lastPosition + 1); |
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} |
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} |
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} |
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} |
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public function afterSave(ModelInterface $model, string $field, bool $rawSql): void |
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{ |
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assert($model instanceof Model); |
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if (!$this->inProgress() && $model->hasSnapshotData() && $model->hasUpdated($field)) { |
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self::staticStart(); |
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$snapshot = $model->getOldSnapshotData() ?: $model->getSnapshotData(); |
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$modelPosition = $model->readAttribute($field); |
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$modelPrimaryKeys = $model->getPrimaryKeysValues(); |
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if ($modelPosition instanceof RawValue) { |
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$modelPosition = $modelPosition->getValue(); |
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} |
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if (!empty($modelPosition) || $modelPosition === '0') { |
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$modelPosition = (int)$modelPosition; |
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$positionField = $field; |
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if (ini_get('phalcon.orm.column_renaming')) { |
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$columnMap = $model->getModelsMetaData()->getReverseColumnMap($model); |
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$positionFieldRaw = $columnMap[$field] ?? $field; |
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} else { |
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$positionFieldRaw = $field; |
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} |
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$primaryKeyCondition = $rawSql |
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? implode_sprintf($modelPrimaryKeys, ' and ', '`' . $model->getSource() . '`.`%2$s` <> ?') |
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: implode_sprintf($modelPrimaryKeys, ' and ', '[' . get_class($model) . '].[%2$s] <> :%2$s:'); |
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$positionKey = uniqid('_position_') . '_'; |
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$oldPositionKey = uniqid('_oldPosition_') . '_'; |
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$updatePositionQuery = null; |
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$updatePositionParams = [$positionKey => $modelPosition, $oldPositionKey => (int)$snapshot[$field]]; |
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if ($snapshot[$field] > $modelPosition) { |
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$updatePositionQuery = $rawSql |
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? 'UPDATE `' . $model->getSource() . '` SET `' . $positionFieldRaw . '` = `' . $positionFieldRaw . '`+1 WHERE `' . $positionFieldRaw . '` >= ? and `' . $positionFieldRaw . '` < ? and ' . $primaryKeyCondition |
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: 'UPDATE [' . get_class($model) . '] SET [' . $positionField . '] = [' . $positionField . ']+1 WHERE [' . $positionField . '] >= :' . $positionKey . ': and [' . $positionField . '] < :' . $oldPositionKey . ': and ' . $primaryKeyCondition; |
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$updatePositionParams = $rawSql |
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? [$modelPosition, $snapshot[$field]] |
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: $updatePositionParams; |
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} |
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elseif ($snapshot[$field] < $modelPosition) { |
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$updatePositionQuery = $rawSql |
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? 'UPDATE `' . $model->getSource() . '` SET `' . $positionFieldRaw . '` = `' . $positionFieldRaw . '`-1 WHERE `' . $positionFieldRaw . '` > ? and `' . $positionFieldRaw . '` <= ? and ' . $primaryKeyCondition |
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: 'UPDATE [' . get_class($model) . '] SET [' . $positionField . '] = [' . $positionField . ']-1 WHERE [' . $positionField . '] > :' . $oldPositionKey . ': and [' . $positionField . '] <= :' . $positionKey . ': and ' . $primaryKeyCondition; |
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$updatePositionParams = $rawSql |
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? [$snapshot[$field], $modelPosition] |
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: $updatePositionParams; |
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} |
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if (!empty($updatePositionQuery)) { |
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if ($rawSql) { |
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$model->getWriteConnection()->query($updatePositionQuery, [ |
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...$updatePositionParams, |
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...array_values($modelPrimaryKeys), |
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]); |
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} |
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else { |
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$save = $model->getModelsManager()->executeQuery($updatePositionQuery, array_merge( |
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$updatePositionParams, |
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$modelPrimaryKeys, |
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)); |
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$messages = $save->getMessages(); |
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if (!empty($messages)) { |
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$model->appendMessages($messages, 'afterSave'); |
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} |
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} |
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} |
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} |
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self::staticStop(); |
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} |
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} |
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} |
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zemit-cms /
core
