/**
* Analyzes the given unary expression and alters it according.
*
* @param \Cake\Database\Expression\UnaryExpression $expression Unary expression
* @param string $bundle Consider attributes only for a specific bundle
* @param \Cake\ORM\Query $query The query instance this expression comes from
* @return \Cake\Database\Expression\UnaryExpression Scoped expression (or not)
*/
protected function _inspectUnaryExpression(UnaryExpression $expression, $bundle, Query $query)
{
$class = new \ReflectionClass($expression);
$property = $class->getProperty('_value');
$property->setAccessible(true);
$value = $property->getValue($expression);
if ($value instanceof IdentifierExpression) {
$field = $value->getIdentifier();
$column = is_string($field) ? $this->_toolbox->columnName($field) : '';
if (empty($column) || in_array($column, (array) $this->_table->schema()->columns()) || !in_array($column, $this->_toolbox->getAttributeNames($bundle)) || !$this->_toolbox->isSearchable($column)) {
// nothing to alter
return $expression;
}
$pk = $this->_tablePrimaryKey();
$driverClass = $this->_driverClass($query);
switch ($driverClass) {
case 'sqlite':
$concat = implode(' || ', $pk);
$field = "({$concat} || '')";
break;
case 'mysql':
case 'postgres':
case 'sqlserver':
default:
$concat = implode(', ', $pk);
$field = "CONCAT({$concat}, '')";
break;
}
$attr = $this->_toolbox->attributes($bundle)[$column];
$type = $this->_toolbox->getType($column);
$subQuery = TableRegistry::get('Eav.EavValues')->find()->select("EavValues.value_{$type}")->where(['EavValues.entity_id' => $field, 'EavValues.eav_attribute_id' => $attr['id']])->sql();
$subQuery = str_replace([':c0', ':c1'], [$field, $attr['id']], $subQuery);
$property->setValue($expression, "({$subQuery})");
}
return $expression;
}
