PHP Query::autoFields方法代碼示例

 /**
  * Custom finder for distance.
  *
  * Options:
  * - lat (required)
  * - lng (required)
  * - tableName
  * - distance
  * - sort
  *
  * @param \Cake\ORM\Query $query Query.
  * @param array $options Array of options as described above
  * @return \Cake\ORM\Query
  */
 public function findDistance(Query $query, array $options)
 {
     $options += ['tableName' => null, 'sort' => true];
     $sql = $this->distanceExpr($options['lat'], $options['lng'], null, null, $options['tableName']);
     if ($query->autoFields() === null) {
         $query->autoFields(true);
     }
     $query->select(['distance' => $query->newExpr($sql)]);
     if (isset($options['distance'])) {
         // Some SQL versions cannot reuse the select() distance field, so we better reuse the $sql snippet
         $query->where(function ($exp) use($sql, $options) {
             return $exp->lt($sql, $options['distance']);
         });
     }
     if ($options['sort']) {
         $sort = $options['sort'] === true ? 'ASC' : $options['sort'];
         $query->order(['distance' => $sort]);
     }
     return $query;
 }

 /**
  * Helper function used to conditionally append fields to the select clause of
  * a query from the fields found in another query object.
  *
  * @param \Cake\ORM\Query $query the query that will get the fields appended to
  * @param \Cake\ORM\Query $surrogate the query having the fields to be copied from
  * @param array $options options passed to the method `attachTo`
  * @return void
  */
 protected function _appendFields($query, $surrogate, $options)
 {
     $fields = $surrogate->clause('select') ?: $options['fields'];
     $target = $this->_targetTable;
     $autoFields = $surrogate->autoFields();
     if ($query->eagerLoader()->autoFields() === false) {
         return;
     }
     if (empty($fields) && !$autoFields) {
         if ($options['includeFields'] && ($fields === null || $fields !== false)) {
             $fields = $target->schema()->columns();
         }
     }
     if ($autoFields === true) {
         $fields = array_merge((array) $fields, $target->schema()->columns());
     }
     if (!empty($fields)) {
         $query->select($query->aliasFields($fields, $target->alias()));
     }
 }

 /**
  * Callback method that listens to the `beforeFind` event in the bound
  * table. It modifies the passed query by eager loading the translated fields
  * and adding a formatter to copy the values into the main table records.
  *
  * @param \Cake\Event\Event $event The beforeFind event that was fired.
  * @param \Cake\ORM\Query $query Query
  * @param \ArrayObject $options The options for the query
  * @return void
  */
 public function beforeFind(Event $event, Query $query, $options)
 {
     $locale = $this->locale();
     if ($locale === $this->config('defaultLocale')) {
         return;
     }
     $conditions = function ($field, $locale, $query, $select) {
         return function ($q) use($field, $locale, $query, $select) {
             $q->where([$q->repository()->aliasField('locale') => $locale]);
             if ($query->autoFields() || in_array($field, $select, true) || in_array($this->_table->aliasField($field), $select, true)) {
                 $q->select(['id', 'content']);
             }
             return $q;
         };
     };
     $contain = [];
     $fields = $this->_config['fields'];
     $alias = $this->_table->alias();
     $select = $query->clause('select');
     $changeFilter = isset($options['filterByCurrentLocale']) && $options['filterByCurrentLocale'] !== $this->_config['onlyTranslated'];
     foreach ($fields as $field) {
         $name = $alias . '_' . $field . '_translation';
         $contain[$name]['queryBuilder'] = $conditions($field, $locale, $query, $select);
         if ($changeFilter) {
             $filter = $options['filterByCurrentLocale'] ? 'INNER' : 'LEFT';
             $contain[$name]['joinType'] = $filter;
         }
     }
     $query->contain($contain);
     $query->formatResults(function ($results) use($locale) {
         return $this->_rowMapper($results, $locale);
     }, $query::PREPEND);
 }