Пример #1
0
 /**
  * Builds the SQL for the join this object represents.
  *
  * When possible, try to use table alias instead of table names.
  *
  * @param $select_query
  *   An select query object.
  * @param $table
  *   The base table to join.
  * @param \Drupal\views\Plugin\views\query\QueryPluginBase $view_query
  *   The source views query.
  */
 public function buildJoin($select_query, $table, $view_query)
 {
     if (empty($this->configuration['table formula'])) {
         $right_table = $this->table;
     } else {
         $right_table = $this->configuration['table formula'];
     }
     if ($this->leftTable) {
         $left = $view_query->getTableInfo($this->leftTable);
         $left_field = "{$left['alias']}.{$this->leftField}";
     } else {
         // This can be used if left_field is a formula or something. It should be used only *very* rarely.
         $left_field = $this->leftField;
     }
     $condition = "{$left_field} = {$table['alias']}.{$this->field}";
     $arguments = array();
     // Tack on the extra.
     if (isset($this->extra)) {
         if (is_array($this->extra)) {
             $extras = array();
             foreach ($this->extra as $info) {
                 // Figure out the table name. Remember, only use aliases provided
                 // if at all possible.
                 $join_table = '';
                 if (!array_key_exists('table', $info)) {
                     $join_table = $table['alias'] . '.';
                 } elseif (isset($info['table'])) {
                     // If we're aware of a table alias for this table, use the table
                     // alias instead of the table name.
                     if (isset($left) && $left['table'] == $info['table']) {
                         $join_table = $left['alias'] . '.';
                     } else {
                         $join_table = $info['table'] . '.';
                     }
                 }
                 // Convert a single-valued array of values to the single-value case,
                 // and transform from IN() notation to = notation
                 if (is_array($info['value']) && count($info['value']) == 1) {
                     if (empty($info['operator'])) {
                         $operator = '=';
                     } else {
                         $operator = $info['operator'] == 'NOT IN' ? '!=' : '=';
                     }
                     $info['value'] = array_shift($info['value']);
                 }
                 if (is_array($info['value'])) {
                     // With an array of values, we need multiple placeholders and the
                     // 'IN' operator is implicit.
                     foreach ($info['value'] as $value) {
                         $placeholder_i = ':views_join_condition_' . $select_query->nextPlaceholder();
                         $arguments[$placeholder_i] = $value;
                     }
                     $operator = !empty($info['operator']) ? $info['operator'] : 'IN';
                     $placeholder = '( ' . implode(', ', array_keys($arguments)) . ' )';
                 } else {
                     // With a single value, the '=' operator is implicit.
                     $operator = !empty($info['operator']) ? $info['operator'] : '=';
                     $placeholder = ':views_join_condition_' . $select_query->nextPlaceholder();
                     $arguments[$placeholder] = $info['value'];
                 }
                 $extras[] = "{$join_table}{$info['field']} {$operator} {$placeholder}";
             }
             if ($extras) {
                 if (count($extras) == 1) {
                     $condition .= ' AND ' . array_shift($extras);
                 } else {
                     $condition .= ' AND (' . implode(' ' . $this->extraOperator . ' ', $extras) . ')';
                 }
             }
         } elseif ($this->extra && is_string($this->extra)) {
             $condition .= " AND ({$this->extra})";
         }
     }
     $select_query->addJoin($this->type, $right_table, $table['alias'], $condition, $arguments);
 }