PHP Doctrine_Query::getQueryComponent方法代码示例

 /**
  * Enrich doctrine tables with it's aliasses.
  *
  * @param array $tables   Array of doctrine table information.
  * @param array $aliasMap Array of aliasses.
  *
  * @return array Enriched array.
  */
 private function _enrichTablesWithAlias($tables, $aliasMap)
 {
     if (count($tables) == count($aliasMap)) {
         return array_combine($aliasMap, $tables);
     } elseif (count($tables) < count($aliasMap)) {
         $aliasses = array();
         foreach ($tables as $table) {
             foreach ($aliasMap as $alias) {
                 if ($this->_doctrineQuery->getQueryComponent($alias) == $table) {
                     $aliasses[] = $alias;
                 }
             }
         }
         return array_combine($aliasses, $tables);
     }
     return false;
 }

 /**
  * hookOrderBy
  * builds DQL query orderby part from given parameter array
  *
  * @param array $params         an array containing all fields which the built query
  *                              should be ordered by
  * @return boolean              whether or not the hooking was successful
  */
 public function hookOrderby($params)
 {
     if (!is_array($params)) {
         return false;
     }
     foreach ($params as $name) {
         $e = explode(' ', $name);
         $order = 'ASC';
         if (count($e) > 1) {
             $order = $e[1] == 'DESC' ? 'DESC' : 'ASC';
         }
         $e = explode('.', $e[0]);
         if (count($e) == 2) {
             list($alias, $column) = $e;
             $map = $this->query->getQueryComponent($alias);
             $table = $map['table'];
             if ($def = $table->getDefinitionOf($column)) {
                 $this->query->addOrderBy($alias . '.' . $column . ' ' . $order);
             }
         }
     }
     return true;
 }

 /**
  * Adds an adapter-specific LIMIT clause to the SELECT statement.
  * [ original code borrowed from Zend Framework ]
  *
  * License available at: http://framework.zend.com/license
  *
  * Copyright (c) 2005-2008, Zend Technologies USA, Inc.
  * All rights reserved.
  * 
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  * 
  *     * Redistributions of source code must retain the above copyright notice,
  *       this list of conditions and the following disclaimer.
  * 
  *     * Redistributions in binary form must reproduce the above copyright notice,
  *       this list of conditions and the following disclaimer in the documentation
  *       and/or other materials provided with the distribution.
  * 
  *     * Neither the name of Zend Technologies USA, Inc. nor the names of its
  *       contributors may be used to endorse or promote products derived from this
  *       software without specific prior written permission.
  * 
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  * @param string $query
  * @param mixed $limit
  * @param mixed $offset
  * @link http://lists.bestpractical.com/pipermail/rt-devel/2005-June/007339.html
  * @return string
  */
 public function modifyLimitQuery($query, $limit = false, $offset = false, $isManip = false, $isSubQuery = false, Doctrine_Query $queryOrigin = null)
 {
     if ($limit === false || !($limit > 0)) {
         return $query;
     }
     $orderby = stristr($query, 'ORDER BY');
     if ($offset !== false && $orderby === false) {
         throw new Doctrine_Connection_Exception("OFFSET cannot be used in MSSQL without ORDER BY due to emulation reasons.");
     }
     $count = intval($limit);
     $offset = intval($offset);
     if ($offset < 0) {
         throw new Doctrine_Connection_Exception("LIMIT argument offset={$offset} is not valid");
     }
     $orderbySql = $queryOrigin->getSqlQueryPart('orderby');
     $orderbyDql = $queryOrigin->getDqlPart('orderby');
     if ($orderby !== false) {
         $orders = $this->parseOrderBy(implode(', ', $queryOrigin->getDqlPart('orderby')));
         for ($i = 0; $i < count($orders); $i++) {
             $sorts[$i] = stripos($orders[$i], ' desc') !== false ? 'DESC' : 'ASC';
             $orders[$i] = trim(preg_replace('/\\s+(ASC|DESC)$/i', '', $orders[$i]));
             list($fieldAliases[$i], $fields[$i]) = strstr($orders[$i], '.') ? explode('.', $orders[$i]) : array('', $orders[$i]);
             $columnAlias[$i] = $queryOrigin->getSqlTableAlias($queryOrigin->getExpressionOwner($orders[$i]));
             $cmp = $queryOrigin->getQueryComponent($queryOrigin->getExpressionOwner($orders[$i]));
             $tables[$i] = $cmp['table'];
             $columns[$i] = $cmp['table']->getColumnName($fields[$i]);
             // TODO: This sould be refactored as method called Doctrine_Table::getColumnAlias(<column name>).
             $aliases[$i] = $columnAlias[$i] . '__' . $columns[$i];
         }
     }
     // Ticket #1259: Fix for limit-subquery in MSSQL
     $selectRegExp = 'SELECT\\s+';
     $selectReplace = 'SELECT ';
     if (preg_match('/^SELECT(\\s+)DISTINCT/i', $query)) {
         $selectRegExp .= 'DISTINCT\\s+';
         $selectReplace .= 'DISTINCT ';
     }
     $fields_string = substr($query, strlen($selectReplace), strpos($query, ' FROM ') - strlen($selectReplace));
     $field_array = explode(',', $fields_string);
     $field_array = array_shift($field_array);
     $aux2 = preg_split('/ as /i', $field_array);
     $aux2 = explode('.', end($aux2));
     $key_field = trim(end($aux2));
     $query = preg_replace('/^' . $selectRegExp . '/i', $selectReplace . 'TOP ' . ($count + $offset) . ' ', $query);
     if ($isSubQuery === true) {
         $query = 'SELECT TOP ' . $count . ' ' . $this->quoteIdentifier('inner_tbl') . '.' . $key_field . ' FROM (' . $query . ') AS ' . $this->quoteIdentifier('inner_tbl');
     } else {
         $query = 'SELECT * FROM (SELECT TOP ' . $count . ' * FROM (' . $query . ') AS ' . $this->quoteIdentifier('inner_tbl');
     }
     if ($orderby !== false) {
         $query .= ' ORDER BY ';
         for ($i = 0, $l = count($orders); $i < $l; $i++) {
             if ($i > 0) {
                 // not first order clause
                 $query .= ', ';
             }
             $query .= $this->modifyOrderByColumn($tables[$i], $columns[$i], $this->quoteIdentifier('inner_tbl') . '.' . $this->quoteIdentifier($aliases[$i])) . ' ';
             $query .= stripos($sorts[$i], 'asc') !== false ? 'DESC' : 'ASC';
         }
     }
//.........这里部分代码省略.........