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<?php |
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namespace Nip\Records\Traits\Unique; |
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use Nip\Records\AbstractModels\Record; |
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/** |
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* Class RecordsTrait |
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* @package Nip\Records\Traits\Unique |
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*/ |
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trait RecordsTrait |
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{ |
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protected $uniqueFields = null; |
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/** |
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* @param Record $item |
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* @return bool|false|Record |
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*/ |
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public function exists(Record $item) |
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{ |
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$params = $this->generateExistsParams($item); |
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if (!$params) { |
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return false; |
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} |
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$where = $params['where']; |
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$uniqueWhere = []; |
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foreach ($where as $key => $value) { |
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if (strpos($key, 'UNQ') !== false) { |
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$uniqueWhere[] = $value; |
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unset($params['where'][$key]); |
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} |
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} |
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$params['where'][] = implode(' OR ', $uniqueWhere); |
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return $this->findOneByParams($params); |
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} |
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/** |
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* @param Record $item |
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* @return array|bool |
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*/ |
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public function generateExistsParams(Record $item) |
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{ |
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$conditions = $this->generateUniqueConditions($item); |
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if (count($conditions) < 1) { |
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return false; |
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} |
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$params = []; |
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$params['where'] = $conditions; |
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$pk = $this->getPrimaryKey(); |
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if ($item->getPrimaryKey()) { |
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$params['where'][] = ["$pk != ?", $item->getPrimaryKey()]; |
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} |
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return $params; |
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} |
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/** |
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* @param Record $item |
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* @return array|bool |
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*/ |
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public function generateUniqueConditions(Record $item) |
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{ |
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$uniqueFields = $this->getUniqueFields(); |
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$conditions = []; |
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foreach ($uniqueFields as $uniqueName => $fields) { |
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$conditions[$uniqueName . '-UNQ'] = $this->generateUniqueCondition($item, $fields); |
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} |
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return $conditions; |
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} |
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/** |
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* @param Record $item |
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* @param $fields |
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* @return string |
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*/ |
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protected function generateUniqueCondition(Record $item, $fields) |
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{ |
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$conditions = []; |
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foreach ($fields as $field) { |
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$conditions[] = "`$field` = '{$item->{$field}}'"; |
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} |
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return implode(' AND ', $conditions); |
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} |
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/** |
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* @return null |
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*/ |
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public function getUniqueFields() |
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{ |
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if ($this->uniqueFields === null) { |
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$this->initUniqueFields(); |
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} |
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return $this->uniqueFields; |
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} |
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/** |
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* @return array|null |
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*/ |
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public function initUniqueFields() |
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{ |
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$this->uniqueFields = []; |
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$structure = $this->getTableStructure(); |
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foreach ($structure['indexes'] as $name => $index) { |
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if ($index['unique'] && $name != 'PRIMARY') { |
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$this->uniqueFields[$name] = $index['fields']; |
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} |
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} |
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return $this->uniqueFields; |
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} |
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} |
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bytic /
orm
Loading history...
This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)or! empty(...)instead.