PHP Doctrine_Query::getSqlTableAlias方法代码示例

 public function joinForTableProxy(Doctrine_Query $q, array $options = array())
 {
     $options = Doctrine_Lib::arrayDeepMerge($this->_options, $options);
     $q->getRootAlias();
     // fix for initialize root
     if (empty($options['parentTable'])) {
         $parentTable = $q->getRoot();
         $parentTableAlias = $q->getRootAlias();
     } else {
         $parentTable = Doctrine::getTable($options['parentTable']);
         $parentTableAlias = empty($options['parentTableAlias']) ? $q->getSqlTableAlias(sfInflector::tableize($options['parentTable'])) : $options['parentTableAlias'];
     }
     if (!empty($options['componentAlias'])) {
         $componentAlias = $options['componentAlias'];
     } elseif ($parentTable->hasRelation($this->_table->getComponentName())) {
         $componentAlias = $this->_table->getComponentName();
     } else {
         $componentName = $this->_table->getComponentName();
         $relations = $parentTable->getRelations();
         foreach ($relations as $relation) {
             if ($relation['class'] == $componentName) {
                 $componentAlias = $relation['alias'];
                 break;
             }
         }
     }
     $tableAlias = empty($options['tableAlias']) ? $this->_table->getAlias() : $options['tableAlias'];
     $q->addSqlTableAlias($tableAlias, sfInflector::tableize($this->_table->getComponentName()));
     $q->leftJoin($parentTableAlias . '.' . $componentAlias . ' ' . $tableAlias);
     if ($options['withI18n'] == true && $this->_table->hasTemplate('Doctrine_Template_I18nMod')) {
         $cultures = empty($options['cultures']) ? sfContext::getInstance()->getUser()->getCulture() : $options['cultures'];
         $chunkWith = implode(' AND ', array_fill(0, count($cultures), ' ' . $tableAlias . '_trans.lang = ? '));
         $q->leftJoin($tableAlias . '.Translation ' . $tableAlias . '_trans WITH ' . $chunkWith, $cultures);
     }
     return $q;
 }

 /**
  * 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.........

 /**
  * Get I18n alias
  * 
  * @param   Doctrine_Query  $q
  * @return  string  I18n table alias
  */
 public function getI18nAlias(Doctrine_Query $q)
 {
     return $q->getSqlTableAlias('Translation', $this->getComponentName());
 }