Viewing file:  Orderby.php (7.69 KB) -rwxr-xr-x
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<?php
/*
* $Id: Orderby.php 5975 2009-07-01 03:50:26Z guilhermeblanco $
*
* 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.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the LGPL. For more information, see
* <http://www.phpdoctrine.org>.
*/
/**
* Doctrine_Query_Orderby
*
* @package Doctrine
* @subpackage Query
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @link www.phpdoctrine.org
* @since 1.0
* @version $Revision: 5975 $
* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
*/
class Doctrine_Query_Orderby extends Doctrine_Query_Part
{
/**
* DQL ORDER BY PARSER
* parses the order by part of the query string
*
* @param string $clause
* @return void
*/
public function parse($clause, $append = false)
{
$terms = $this->_tokenizer->clauseExplode($clause, array(' ', ',', '+', '-', '*', '/', '<', '>', '=', '>=', '<='));
$str = '';
foreach ($terms as $term) {
$pos = strpos($term[0], '(');
$hasComma = false;
if ($pos !== false) {
$name = substr($term[0], 0, $pos);
$term[0] = $this->query->parseFunctionExpression($term[0]);
} else {
if (substr($term[0], 0, 1) !== "'" && substr($term[0], -1) !== "'") {
if (strpos($term[0], '.') !== false) {
if ( ! is_numeric($term[0])) {
$e = explode('.', $term[0]);
$field = array_pop($e);
// Check if field name still has comma
if (($pos = strpos($field, ',')) !== false) {
$field = substr($field, 0, $pos);
$hasComma = true;
}
// Grab query connection
$conn = $this->query->getConnection();
if ($this->query->getType() === Doctrine_Query::SELECT) {
$componentAlias = implode('.', $e);
if (empty($componentAlias)) {
$componentAlias = $this->query->getRootAlias();
}
$this->query->load($componentAlias);
// check the existence of the component alias
$queryComponent = $this->query->getQueryComponent($componentAlias);
$table = $queryComponent['table'];
$def = $table->getDefinitionOf($field);
// get the actual field name from alias
$field = $table->getColumnName($field);
// check column existence
if ( ! $def) {
throw new Doctrine_Query_Exception('Unknown column ' . $field);
}
if (isset($def['owner'])) {
$componentAlias = $componentAlias . '.' . $def['owner'];
}
$tableAlias = $this->query->getSqlTableAlias($componentAlias);
// build sql expression
$term[0] = $conn->quoteIdentifier($tableAlias) . '.' . $conn->quoteIdentifier($field);
} else {
// build sql expression
$field = $this->query->getRoot()->getColumnName($field);
$term[0] = $conn->quoteIdentifier($field);
}
}
} else {
if ( ! empty($term[0]) &&
! is_numeric($term[0]) &&
$term[0] !== '?' && substr($term[0], 0, 1) !== ':') {
$componentAlias = $this->query->getRootAlias();
$found = false;
// Check if field name still has comma
if (($pos = strpos($term[0], ',')) !== false) {
$term[0] = substr($term[0], 0, $pos);
$hasComma = true;
}
if ($componentAlias !== false &&
$componentAlias !== null) {
$queryComponent = $this->query->getQueryComponent($componentAlias);
$table = $queryComponent['table'];
// check column existence
if ($table->hasField($term[0])) {
$found = true;
$def = $table->getDefinitionOf($term[0]);
// get the actual column name from field name
$term[0] = $table->getColumnName($term[0]);
if (isset($def['owner'])) {
$componentAlias = $componentAlias . '.' . $def['owner'];
}
$tableAlias = $this->query->getSqlTableAlias($componentAlias);
$conn = $this->query->getConnection();
if ($this->query->getType() === Doctrine_Query::SELECT) {
// build sql expression
$term[0] = $conn->quoteIdentifier($tableAlias)
. '.' . $conn->quoteIdentifier($term[0]);
} else {
// build sql expression
$term[0] = $conn->quoteIdentifier($term[0]);
}
} else {
$found = false;
}
}
if ( ! $found) {
$tmp = strtoupper(trim($term[0], ', '));
if ($tmp !== 'DESC' && $tmp !== 'ASC') {
$term[0] = $this->query->getSqlAggregateAlias($term[0]);
}
}
}
}
}
}
$str .= $term[0] . ($hasComma ? ',' : '') . $term[1];
}
return $str;
}
}
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