1091 lines
33 KiB
PHP
1091 lines
33 KiB
PHP
<?php
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/*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This software consists of voluntary contributions made by many individuals
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* and is licensed under the LGPL. For more information, see
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* <http://www.doctrine-project.org>.
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*/
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namespace Doctrine\DBAL\Query;
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use Doctrine\DBAL\Query\Expression\CompositeExpression,
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Doctrine\DBAL\Connection;
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/**
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* QueryBuilder class is responsible to dynamically create SQL queries.
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*
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* Important: Verify that every feature you use will work with your database vendor.
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* SQL Query Builder does not attempt to validate the generated SQL at all.
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*
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* The query builder does no validation whatsoever if certain features even work with the
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* underlying database vendor. Limit queries and joins are NOT applied to UPDATE and DELETE statements
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* even if some vendors such as MySQL support it.
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*
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* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
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* @link www.doctrine-project.com
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* @since 2.1
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* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
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* @author Benjamin Eberlei <kontakt@beberlei.de>
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*/
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class QueryBuilder
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{
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/* The query types. */
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const SELECT = 0;
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const DELETE = 1;
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const UPDATE = 2;
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/** The builder states. */
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const STATE_DIRTY = 0;
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const STATE_CLEAN = 1;
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/**
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* @var Doctrine\DBAL\Connection DBAL Connection
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*/
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private $connection = null;
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/**
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* @var array The array of SQL parts collected.
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*/
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private $sqlParts = array(
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'select' => array(),
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'from' => array(),
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'join' => array(),
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'set' => array(),
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'where' => null,
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'groupBy' => array(),
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'having' => null,
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'orderBy' => array()
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);
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/**
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* @var string The complete SQL string for this query.
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*/
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private $sql;
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/**
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* @var array The query parameters.
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*/
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private $params = array();
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/**
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* @var array The parameter type map of this query.
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*/
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private $paramTypes = array();
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/**
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* @var integer The type of query this is. Can be select, update or delete.
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*/
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private $type = self::SELECT;
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/**
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* @var integer The state of the query object. Can be dirty or clean.
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*/
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private $state = self::STATE_CLEAN;
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/**
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* @var integer The index of the first result to retrieve.
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*/
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private $firstResult = null;
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/**
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* @var integer The maximum number of results to retrieve.
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*/
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private $maxResults = null;
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/**
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* The counter of bound parameters used with {@see bindValue)
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*
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* @var int
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*/
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private $boundCounter = 0;
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/**
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* Initializes a new <tt>QueryBuilder</tt>.
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*
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* @param Doctrine\DBAL\Connection $connection DBAL Connection
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*/
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public function __construct(Connection $connection)
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{
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$this->connection = $connection;
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}
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/**
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* Gets an ExpressionBuilder used for object-oriented construction of query expressions.
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* This producer method is intended for convenient inline usage. Example:
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*
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* <code>
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* $qb = $conn->createQueryBuilder()
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* ->select('u')
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* ->from('users', 'u')
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* ->where($qb->expr()->eq('u.id', 1));
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* </code>
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*
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* For more complex expression construction, consider storing the expression
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* builder object in a local variable.
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*
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* @return Doctrine\DBAL\Query\ExpressionBuilder
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*/
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public function expr()
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{
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return $this->connection->getExpressionBuilder();
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}
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/**
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* Get the type of the currently built query.
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*
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* @return integer
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*/
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public function getType()
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{
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return $this->type;
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}
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/**
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* Get the associated DBAL Connection for this query builder.
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*
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* @return Doctrine\DBAL\Connection
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*/
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public function getConnection()
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{
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return $this->connection;
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}
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/**
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* Get the state of this query builder instance.
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*
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* @return integer Either QueryBuilder::STATE_DIRTY or QueryBuilder::STATE_CLEAN.
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*/
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public function getState()
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{
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return $this->state;
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}
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/**
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* Execute this query using the bound parameters and their types.
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*
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* Uses {@see Connection::executeQuery} for select statements and {@see Connection::executeUpdate}
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* for insert, update and delete statements.
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*
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* @return mixed
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*/
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public function execute()
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{
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if ($this->type == self::SELECT) {
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return $this->connection->executeQuery($this->getSQL(), $this->params, $this->paramTypes);
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} else {
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return $this->connection->executeUpdate($this->getSQL(), $this->params, $this->paramTypes);
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}
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}
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/**
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* Get the complete SQL string formed by the current specifications of this QueryBuilder.
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*
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* <code>
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* $qb = $em->createQueryBuilder()
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* ->select('u')
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* ->from('User', 'u')
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* echo $qb->getSQL(); // SELECT u FROM User u
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* </code>
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*
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* @return string The sql query string.
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*/
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public function getSQL()
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{
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if ($this->sql !== null && $this->state === self::STATE_CLEAN) {
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return $this->sql;
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}
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$sql = '';
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switch ($this->type) {
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case self::DELETE:
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$sql = $this->getSQLForDelete();
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break;
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case self::UPDATE:
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$sql = $this->getSQLForUpdate();
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break;
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case self::SELECT:
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default:
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$sql = $this->getSQLForSelect();
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break;
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}
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$this->state = self::STATE_CLEAN;
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$this->sql = $sql;
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return $sql;
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}
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/**
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* Sets a query parameter for the query being constructed.
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*
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* <code>
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* $qb = $conn->createQueryBuilder()
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* ->select('u')
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* ->from('users', 'u')
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* ->where('u.id = :user_id')
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* ->setParameter(':user_id', 1);
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* </code>
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*
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* @param string|integer $key The parameter position or name.
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* @param mixed $value The parameter value.
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* @param string|null $type PDO::PARAM_*
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* @return QueryBuilder This QueryBuilder instance.
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*/
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public function setParameter($key, $value, $type = null)
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{
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if ($type !== null) {
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$this->paramTypes[$key] = $type;
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}
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$this->params[$key] = $value;
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return $this;
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}
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/**
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* Sets a collection of query parameters for the query being constructed.
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*
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* <code>
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* $qb = $conn->createQueryBuilder()
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* ->select('u')
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* ->from('users', 'u')
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* ->where('u.id = :user_id1 OR u.id = :user_id2')
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* ->setParameters(array(
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* ':user_id1' => 1,
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* ':user_id2' => 2
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* ));
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* </code>
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*
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* @param array $params The query parameters to set.
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* @return QueryBuilder This QueryBuilder instance.
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*/
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public function setParameters(array $params, array $types = array())
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{
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$this->paramTypes = $types;
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$this->params = $params;
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return $this;
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}
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/**
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* Gets all defined query parameters for the query being constructed.
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*
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* @return array The currently defined query parameters.
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*/
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public function getParameters()
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{
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return $this->params;
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}
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/**
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* Gets a (previously set) query parameter of the query being constructed.
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*
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* @param mixed $key The key (index or name) of the bound parameter.
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* @return mixed The value of the bound parameter.
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*/
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public function getParameter($key)
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{
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return isset($this->params[$key]) ? $this->params[$key] : null;
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}
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/**
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* Sets the position of the first result to retrieve (the "offset").
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*
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* @param integer $firstResult The first result to return.
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* @return Doctrine\DBAL\Query\QueryBuilder This QueryBuilder instance.
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*/
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public function setFirstResult($firstResult)
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{
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$this->state = self::STATE_DIRTY;
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$this->firstResult = $firstResult;
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return $this;
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}
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/**
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* Gets the position of the first result the query object was set to retrieve (the "offset").
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* Returns NULL if {@link setFirstResult} was not applied to this QueryBuilder.
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*
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* @return integer The position of the first result.
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*/
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public function getFirstResult()
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{
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return $this->firstResult;
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}
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/**
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* Sets the maximum number of results to retrieve (the "limit").
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*
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* @param integer $maxResults The maximum number of results to retrieve.
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* @return Doctrine\DBAL\Query\QueryBuilder This QueryBuilder instance.
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*/
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public function setMaxResults($maxResults)
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{
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$this->state = self::STATE_DIRTY;
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$this->maxResults = $maxResults;
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return $this;
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}
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/**
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* Gets the maximum number of results the query object was set to retrieve (the "limit").
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* Returns NULL if {@link setMaxResults} was not applied to this query builder.
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*
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* @return integer Maximum number of results.
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*/
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public function getMaxResults()
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{
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return $this->maxResults;
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}
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/**
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* Either appends to or replaces a single, generic query part.
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*
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* The available parts are: 'select', 'from', 'set', 'where',
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* 'groupBy', 'having' and 'orderBy'.
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*
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* @param string $sqlPartName
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* @param string $sqlPart
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* @param string $append
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* @return Doctrine\DBAL\Query\QueryBuilder This QueryBuilder instance.
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*/
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public function add($sqlPartName, $sqlPart, $append = false)
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{
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$isArray = is_array($sqlPart);
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$isMultiple = is_array($this->sqlParts[$sqlPartName]);
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if ($isMultiple && !$isArray) {
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$sqlPart = array($sqlPart);
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}
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$this->state = self::STATE_DIRTY;
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if ($append) {
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if ($sqlPartName == "orderBy" || $sqlPartName == "groupBy" || $sqlPartName == "select" || $sqlPartName == "set") {
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foreach ($sqlPart AS $part) {
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$this->sqlParts[$sqlPartName][] = $part;
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}
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} else if ($isArray && is_array($sqlPart[key($sqlPart)])) {
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$key = key($sqlPart);
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$this->sqlParts[$sqlPartName][$key][] = $sqlPart[$key];
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} else if ($isMultiple) {
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$this->sqlParts[$sqlPartName][] = $sqlPart;
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} else {
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$this->sqlParts[$sqlPartName] = $sqlPart;
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}
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return $this;
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}
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$this->sqlParts[$sqlPartName] = $sqlPart;
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return $this;
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}
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/**
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* Specifies an item that is to be returned in the query result.
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* Replaces any previously specified selections, if any.
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*
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* <code>
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* $qb = $conn->createQueryBuilder()
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* ->select('u.id', 'p.id')
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* ->from('users', 'u')
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* ->leftJoin('u', 'phonenumbers', 'p', 'u.id = p.user_id');
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* </code>
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*
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* @param mixed $select The selection expressions.
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* @return QueryBuilder This QueryBuilder instance.
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*/
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public function select($select = null)
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{
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$this->type = self::SELECT;
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if (empty($select)) {
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return $this;
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}
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$selects = is_array($select) ? $select : func_get_args();
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return $this->add('select', $selects, false);
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}
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/**
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* Adds an item that is to be returned in the query result.
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*
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* <code>
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* $qb = $conn->createQueryBuilder()
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* ->select('u.id')
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* ->addSelect('p.id')
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* ->from('users', 'u')
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* ->leftJoin('u', 'phonenumbers', 'u.id = p.user_id');
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* </code>
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*
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* @param mixed $select The selection expression.
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* @return QueryBuilder This QueryBuilder instance.
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*/
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public function addSelect($select = null)
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{
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$this->type = self::SELECT;
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if (empty($select)) {
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return $this;
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}
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$selects = is_array($select) ? $select : func_get_args();
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return $this->add('select', $selects, true);
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}
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/**
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* Turns the query being built into a bulk delete query that ranges over
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* a certain table.
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*
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* <code>
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* $qb = $conn->createQueryBuilder()
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* ->delete('users', 'u')
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* ->where('u.id = :user_id');
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* ->setParameter(':user_id', 1);
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* </code>
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*
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* @param string $delete The table whose rows are subject to the deletion.
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* @param string $alias The table alias used in the constructed query.
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* @return QueryBuilder This QueryBuilder instance.
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*/
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public function delete($delete = null, $alias = null)
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{
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$this->type = self::DELETE;
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if ( ! $delete) {
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return $this;
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}
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return $this->add('from', array(
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'table' => $delete,
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'alias' => $alias
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));
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}
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/**
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* Turns the query being built into a bulk update query that ranges over
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* a certain table
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*
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* <code>
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* $qb = $conn->createQueryBuilder()
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* ->update('users', 'u')
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* ->set('u.password', md5('password'))
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* ->where('u.id = ?');
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* </code>
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*
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* @param string $update The table whose rows are subject to the update.
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* @param string $alias The table alias used in the constructed query.
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* @return QueryBuilder This QueryBuilder instance.
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*/
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public function update($update = null, $alias = null)
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{
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$this->type = self::UPDATE;
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if ( ! $update) {
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return $this;
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}
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return $this->add('from', array(
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'table' => $update,
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'alias' => $alias
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));
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}
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/**
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* Create and add a query root corresponding to the table identified by the
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* given alias, forming a cartesian product with any existing query roots.
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*
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* <code>
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* $qb = $conn->createQueryBuilder()
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* ->select('u.id')
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* ->from('users', 'u')
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* </code>
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*
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* @param string $from The table
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* @param string $alias The alias of the table
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* @return QueryBuilder This QueryBuilder instance.
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*/
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public function from($from, $alias)
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{
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return $this->add('from', array(
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'table' => $from,
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'alias' => $alias
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), true);
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}
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|
|
/**
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|
* Creates and adds a join to the query.
|
|
*
|
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* <code>
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* $qb = $conn->createQueryBuilder()
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* ->select('u.name')
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* ->from('users', 'u')
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* ->join('u', 'phonenumbers', 'p', 'p.is_primary = 1');
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* </code>
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*
|
|
* @param string $fromAlias The alias that points to a from clause
|
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* @param string $join The table name to join
|
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* @param string $alias The alias of the join table
|
|
* @param string $condition The condition for the join
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* @return QueryBuilder This QueryBuilder instance.
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*/
|
|
public function join($fromAlias, $join, $alias, $condition = null)
|
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{
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return $this->innerJoin($fromAlias, $join, $alias, $condition);
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}
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|
|
|
/**
|
|
* Creates and adds a join to the query.
|
|
*
|
|
* <code>
|
|
* $qb = $conn->createQueryBuilder()
|
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* ->select('u.name')
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* ->from('users', 'u')
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* ->innerJoin('u', 'phonenumbers', 'p', 'p.is_primary = 1');
|
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* </code>
|
|
*
|
|
* @param string $fromAlias The alias that points to a from clause
|
|
* @param string $join The table name to join
|
|
* @param string $alias The alias of the join table
|
|
* @param string $condition The condition for the join
|
|
* @return QueryBuilder This QueryBuilder instance.
|
|
*/
|
|
public function innerJoin($fromAlias, $join, $alias, $condition = null)
|
|
{
|
|
return $this->add('join', array(
|
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$fromAlias => array(
|
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'joinType' => 'inner',
|
|
'joinTable' => $join,
|
|
'joinAlias' => $alias,
|
|
'joinCondition' => $condition
|
|
)
|
|
), true);
|
|
}
|
|
|
|
/**
|
|
* Creates and adds a left join to the query.
|
|
*
|
|
* <code>
|
|
* $qb = $conn->createQueryBuilder()
|
|
* ->select('u.name')
|
|
* ->from('users', 'u')
|
|
* ->leftJoin('u', 'phonenumbers', 'p', 'p.is_primary = 1');
|
|
* </code>
|
|
*
|
|
* @param string $fromAlias The alias that points to a from clause
|
|
* @param string $join The table name to join
|
|
* @param string $alias The alias of the join table
|
|
* @param string $condition The condition for the join
|
|
* @return QueryBuilder This QueryBuilder instance.
|
|
*/
|
|
public function leftJoin($fromAlias, $join, $alias, $condition = null)
|
|
{
|
|
return $this->add('join', array(
|
|
$fromAlias => array(
|
|
'joinType' => 'left',
|
|
'joinTable' => $join,
|
|
'joinAlias' => $alias,
|
|
'joinCondition' => $condition
|
|
)
|
|
), true);
|
|
}
|
|
|
|
/**
|
|
* Creates and adds a right join to the query.
|
|
*
|
|
* <code>
|
|
* $qb = $conn->createQueryBuilder()
|
|
* ->select('u.name')
|
|
* ->from('users', 'u')
|
|
* ->rightJoin('u', 'phonenumbers', 'p', 'p.is_primary = 1');
|
|
* </code>
|
|
*
|
|
* @param string $fromAlias The alias that points to a from clause
|
|
* @param string $join The table name to join
|
|
* @param string $alias The alias of the join table
|
|
* @param string $condition The condition for the join
|
|
* @return QueryBuilder This QueryBuilder instance.
|
|
*/
|
|
public function rightJoin($fromAlias, $join, $alias, $condition = null)
|
|
{
|
|
return $this->add('join', array(
|
|
$fromAlias => array(
|
|
'joinType' => 'right',
|
|
'joinTable' => $join,
|
|
'joinAlias' => $alias,
|
|
'joinCondition' => $condition
|
|
)
|
|
), true);
|
|
}
|
|
|
|
/**
|
|
* Sets a new value for a column in a bulk update query.
|
|
*
|
|
* <code>
|
|
* $qb = $conn->createQueryBuilder()
|
|
* ->update('users', 'u')
|
|
* ->set('u.password', md5('password'))
|
|
* ->where('u.id = ?');
|
|
* </code>
|
|
*
|
|
* @param string $key The column to set.
|
|
* @param string $value The value, expression, placeholder, etc.
|
|
* @return QueryBuilder This QueryBuilder instance.
|
|
*/
|
|
public function set($key, $value)
|
|
{
|
|
return $this->add('set', $key .' = ' . $value, true);
|
|
}
|
|
|
|
/**
|
|
* Specifies one or more restrictions to the query result.
|
|
* Replaces any previously specified restrictions, if any.
|
|
*
|
|
* <code>
|
|
* $qb = $conn->createQueryBuilder()
|
|
* ->select('u.name')
|
|
* ->from('users', 'u')
|
|
* ->where('u.id = ?');
|
|
*
|
|
* // You can optionally programatically build and/or expressions
|
|
* $qb = $conn->createQueryBuilder();
|
|
*
|
|
* $or = $qb->expr()->orx();
|
|
* $or->add($qb->expr()->eq('u.id', 1));
|
|
* $or->add($qb->expr()->eq('u.id', 2));
|
|
*
|
|
* $qb->update('users', 'u')
|
|
* ->set('u.password', md5('password'))
|
|
* ->where($or);
|
|
* </code>
|
|
*
|
|
* @param mixed $predicates The restriction predicates.
|
|
* @return QueryBuilder This QueryBuilder instance.
|
|
*/
|
|
public function where($predicates)
|
|
{
|
|
if ( ! (func_num_args() == 1 && $predicates instanceof CompositeExpression) ) {
|
|
$predicates = new CompositeExpression(CompositeExpression::TYPE_AND, func_get_args());
|
|
}
|
|
|
|
return $this->add('where', $predicates);
|
|
}
|
|
|
|
/**
|
|
* Adds one or more restrictions to the query results, forming a logical
|
|
* conjunction with any previously specified restrictions.
|
|
*
|
|
* <code>
|
|
* $qb = $conn->createQueryBuilder()
|
|
* ->select('u')
|
|
* ->from('users', 'u')
|
|
* ->where('u.username LIKE ?')
|
|
* ->andWhere('u.is_active = 1');
|
|
* </code>
|
|
*
|
|
* @param mixed $where The query restrictions.
|
|
* @return QueryBuilder This QueryBuilder instance.
|
|
* @see where()
|
|
*/
|
|
public function andWhere($where)
|
|
{
|
|
$where = $this->getQueryPart('where');
|
|
$args = func_get_args();
|
|
|
|
if ($where instanceof CompositeExpression && $where->getType() === CompositeExpression::TYPE_AND) {
|
|
$where->addMultiple($args);
|
|
} else {
|
|
array_unshift($args, $where);
|
|
$where = new CompositeExpression(CompositeExpression::TYPE_AND, $args);
|
|
}
|
|
|
|
return $this->add('where', $where, true);
|
|
}
|
|
|
|
/**
|
|
* Adds one or more restrictions to the query results, forming a logical
|
|
* disjunction with any previously specified restrictions.
|
|
*
|
|
* <code>
|
|
* $qb = $em->createQueryBuilder()
|
|
* ->select('u.name')
|
|
* ->from('users', 'u')
|
|
* ->where('u.id = 1')
|
|
* ->orWhere('u.id = 2');
|
|
* </code>
|
|
*
|
|
* @param mixed $where The WHERE statement
|
|
* @return QueryBuilder $qb
|
|
* @see where()
|
|
*/
|
|
public function orWhere($where)
|
|
{
|
|
$where = $this->getQueryPart('where');
|
|
$args = func_get_args();
|
|
|
|
if ($where instanceof CompositeExpression && $where->getType() === CompositeExpression::TYPE_OR) {
|
|
$where->addMultiple($args);
|
|
} else {
|
|
array_unshift($args, $where);
|
|
$where = new CompositeExpression(CompositeExpression::TYPE_OR, $args);
|
|
}
|
|
|
|
return $this->add('where', $where, true);
|
|
}
|
|
|
|
/**
|
|
* Specifies a grouping over the results of the query.
|
|
* Replaces any previously specified groupings, if any.
|
|
*
|
|
* <code>
|
|
* $qb = $conn->createQueryBuilder()
|
|
* ->select('u.name')
|
|
* ->from('users', 'u')
|
|
* ->groupBy('u.id');
|
|
* </code>
|
|
*
|
|
* @param mixed $groupBy The grouping expression.
|
|
* @return QueryBuilder This QueryBuilder instance.
|
|
*/
|
|
public function groupBy($groupBy)
|
|
{
|
|
if (empty($groupBy)) {
|
|
return $this;
|
|
}
|
|
|
|
$groupBy = is_array($groupBy) ? $groupBy : func_get_args();
|
|
|
|
return $this->add('groupBy', $groupBy, false);
|
|
}
|
|
|
|
|
|
/**
|
|
* Adds a grouping expression to the query.
|
|
*
|
|
* <code>
|
|
* $qb = $conn->createQueryBuilder()
|
|
* ->select('u.name')
|
|
* ->from('users', 'u')
|
|
* ->groupBy('u.lastLogin');
|
|
* ->addGroupBy('u.createdAt')
|
|
* </code>
|
|
*
|
|
* @param mixed $groupBy The grouping expression.
|
|
* @return QueryBuilder This QueryBuilder instance.
|
|
*/
|
|
public function addGroupBy($groupBy)
|
|
{
|
|
if (empty($groupBy)) {
|
|
return $this;
|
|
}
|
|
|
|
$groupBy = is_array($groupBy) ? $groupBy : func_get_args();
|
|
|
|
return $this->add('groupBy', $groupBy, true);
|
|
}
|
|
|
|
/**
|
|
* Specifies a restriction over the groups of the query.
|
|
* Replaces any previous having restrictions, if any.
|
|
*
|
|
* @param mixed $having The restriction over the groups.
|
|
* @return QueryBuilder This QueryBuilder instance.
|
|
*/
|
|
public function having($having)
|
|
{
|
|
if ( ! (func_num_args() == 1 && $having instanceof CompositeExpression)) {
|
|
$having = new CompositeExpression(CompositeExpression::TYPE_AND, func_get_args());
|
|
}
|
|
|
|
return $this->add('having', $having);
|
|
}
|
|
|
|
/**
|
|
* Adds a restriction over the groups of the query, forming a logical
|
|
* conjunction with any existing having restrictions.
|
|
*
|
|
* @param mixed $having The restriction to append.
|
|
* @return QueryBuilder This QueryBuilder instance.
|
|
*/
|
|
public function andHaving($having)
|
|
{
|
|
$having = $this->getQueryPart('having');
|
|
$args = func_get_args();
|
|
|
|
if ($having instanceof CompositeExpression && $having->getType() === CompositeExpression::TYPE_AND) {
|
|
$having->addMultiple($args);
|
|
} else {
|
|
array_unshift($args, $having);
|
|
$having = new CompositeExpression(CompositeExpression::TYPE_AND, $args);
|
|
}
|
|
|
|
return $this->add('having', $having);
|
|
}
|
|
|
|
/**
|
|
* Adds a restriction over the groups of the query, forming a logical
|
|
* disjunction with any existing having restrictions.
|
|
*
|
|
* @param mixed $having The restriction to add.
|
|
* @return QueryBuilder This QueryBuilder instance.
|
|
*/
|
|
public function orHaving($having)
|
|
{
|
|
$having = $this->getQueryPart('having');
|
|
$args = func_get_args();
|
|
|
|
if ($having instanceof CompositeExpression && $having->getType() === CompositeExpression::TYPE_OR) {
|
|
$having->addMultiple($args);
|
|
} else {
|
|
array_unshift($args, $having);
|
|
$having = new CompositeExpression(CompositeExpression::TYPE_OR, $args);
|
|
}
|
|
|
|
return $this->add('having', $having);
|
|
}
|
|
|
|
/**
|
|
* Specifies an ordering for the query results.
|
|
* Replaces any previously specified orderings, if any.
|
|
*
|
|
* @param string $sort The ordering expression.
|
|
* @param string $order The ordering direction.
|
|
* @return QueryBuilder This QueryBuilder instance.
|
|
*/
|
|
public function orderBy($sort, $order = null)
|
|
{
|
|
return $this->add('orderBy', $sort . ' ' . (! $order ? 'ASC' : $order), false);
|
|
}
|
|
|
|
/**
|
|
* Adds an ordering to the query results.
|
|
*
|
|
* @param string $sort The ordering expression.
|
|
* @param string $order The ordering direction.
|
|
* @return QueryBuilder This QueryBuilder instance.
|
|
*/
|
|
public function addOrderBy($sort, $order = null)
|
|
{
|
|
return $this->add('orderBy', $sort . ' ' . (! $order ? 'ASC' : $order), true);
|
|
}
|
|
|
|
/**
|
|
* Get a query part by its name.
|
|
*
|
|
* @param string $queryPartName
|
|
* @return mixed $queryPart
|
|
*/
|
|
public function getQueryPart($queryPartName)
|
|
{
|
|
return $this->sqlParts[$queryPartName];
|
|
}
|
|
|
|
/**
|
|
* Get all query parts.
|
|
*
|
|
* @return array $sqlParts
|
|
*/
|
|
public function getQueryParts()
|
|
{
|
|
return $this->sqlParts;
|
|
}
|
|
|
|
/**
|
|
* Reset SQL parts
|
|
*
|
|
* @param array $queryPartNames
|
|
* @return QueryBuilder
|
|
*/
|
|
public function resetQueryParts($queryPartNames = null)
|
|
{
|
|
if (is_null($queryPartNames)) {
|
|
$queryPartNames = array_keys($this->sqlParts);
|
|
}
|
|
|
|
foreach ($queryPartNames as $queryPartName) {
|
|
$this->resetQueryPart($queryPartName);
|
|
}
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Reset single SQL part
|
|
*
|
|
* @param string $queryPartName
|
|
* @return QueryBuilder
|
|
*/
|
|
public function resetQueryPart($queryPartName)
|
|
{
|
|
$this->sqlParts[$queryPartName] = is_array($this->sqlParts[$queryPartName])
|
|
? array() : null;
|
|
|
|
$this->state = self::STATE_DIRTY;
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Converts this instance into a SELECT string in SQL.
|
|
*
|
|
* @return string
|
|
*/
|
|
private function getSQLForSelect()
|
|
{
|
|
$query = 'SELECT ' . implode(', ', $this->sqlParts['select']) . ' FROM ';
|
|
|
|
$fromClauses = array();
|
|
|
|
// Loop through all FROM clauses
|
|
foreach ($this->sqlParts['from'] as $from) {
|
|
$fromClause = $from['table'] . ' ' . $from['alias'];
|
|
|
|
if (isset($this->sqlParts['join'][$from['alias']])) {
|
|
foreach ($this->sqlParts['join'][$from['alias']] as $join) {
|
|
$fromClause .= ' ' . strtoupper($join['joinType'])
|
|
. ' JOIN ' . $join['joinTable'] . ' ' . $join['joinAlias']
|
|
. ' ON ' . ((string) $join['joinCondition']);
|
|
}
|
|
}
|
|
|
|
$fromClauses[$from['alias']] = $fromClause;
|
|
}
|
|
|
|
// loop through all JOIN clasues for validation purpose
|
|
foreach ($this->sqlParts['join'] as $fromAlias => $joins) {
|
|
if ( ! isset($fromClauses[$fromAlias]) ) {
|
|
throw QueryException::unknownFromAlias($fromAlias, array_keys($fromClauses));
|
|
}
|
|
}
|
|
|
|
$query .= implode(', ', $fromClauses)
|
|
. ($this->sqlParts['where'] !== null ? ' WHERE ' . ((string) $this->sqlParts['where']) : '')
|
|
. ($this->sqlParts['groupBy'] ? ' GROUP BY ' . implode(', ', $this->sqlParts['groupBy']) : '')
|
|
. ($this->sqlParts['having'] !== null ? ' HAVING ' . ((string) $this->sqlParts['having']) : '')
|
|
. ($this->sqlParts['orderBy'] ? ' ORDER BY ' . implode(', ', $this->sqlParts['orderBy']) : '');
|
|
|
|
return ($this->maxResults === null && $this->firstResult == null)
|
|
? $query
|
|
: $this->connection->getDatabasePlatform()->modifyLimitQuery($query, $this->maxResults, $this->firstResult);
|
|
}
|
|
|
|
/**
|
|
* Converts this instance into an UPDATE string in SQL.
|
|
*
|
|
* @return string
|
|
*/
|
|
private function getSQLForUpdate()
|
|
{
|
|
$table = $this->sqlParts['from']['table'] . ($this->sqlParts['from']['alias'] ? ' ' . $this->sqlParts['from']['alias'] : '');
|
|
$query = 'UPDATE ' . $table
|
|
. ' SET ' . implode(", ", $this->sqlParts['set'])
|
|
. ($this->sqlParts['where'] !== null ? ' WHERE ' . ((string) $this->sqlParts['where']) : '');
|
|
|
|
return $query;
|
|
}
|
|
|
|
/**
|
|
* Converts this instance into a DELETE string in SQL.
|
|
*
|
|
* @return string
|
|
*/
|
|
private function getSQLForDelete()
|
|
{
|
|
$table = $this->sqlParts['from']['table'] . ($this->sqlParts['from']['alias'] ? ' ' . $this->sqlParts['from']['alias'] : '');
|
|
$query = 'DELETE FROM ' . $table . ($this->sqlParts['where'] !== null ? ' WHERE ' . ((string) $this->sqlParts['where']) : '');
|
|
|
|
return $query;
|
|
}
|
|
|
|
/**
|
|
* Gets a string representation of this QueryBuilder which corresponds to
|
|
* the final SQL query being constructed.
|
|
*
|
|
* @return string The string representation of this QueryBuilder.
|
|
*/
|
|
public function __toString()
|
|
{
|
|
return $this->getSQL();
|
|
}
|
|
|
|
/**
|
|
* Create a new named parameter and bind the value $value to it.
|
|
*
|
|
* This method provides a shortcut for PDOStatement::bindValue
|
|
* when using prepared statements.
|
|
*
|
|
* The parameter $value specifies the value that you want to bind. If
|
|
* $placeholder is not provided bindValue() will automatically create a
|
|
* placeholder for you. An automatic placeholder will be of the name
|
|
* ':dcValue1', ':dcValue2' etc.
|
|
*
|
|
* For more information see {@link http://php.net/pdostatement-bindparam}
|
|
*
|
|
* Example:
|
|
* <code>
|
|
* $value = 2;
|
|
* $q->eq( 'id', $q->bindValue( $value ) );
|
|
* $stmt = $q->executeQuery(); // executed with 'id = 2'
|
|
* </code>
|
|
*
|
|
* @license New BSD License
|
|
* @link http://www.zetacomponents.org
|
|
* @param mixed $value
|
|
* @param mixed $type
|
|
* @param string $placeHolder the name to bind with. The string must start with a colon ':'.
|
|
* @return string the placeholder name used.
|
|
*/
|
|
public function createNamedParameter( $value, $type = \PDO::PARAM_STR, $placeHolder = null )
|
|
{
|
|
if ( $placeHolder === null ) {
|
|
$this->boundCounter++;
|
|
$placeHolder = ":dcValue" . $this->boundCounter;
|
|
}
|
|
$this->setParameter(substr($placeHolder, 1), $value, $type);
|
|
|
|
return $placeHolder;
|
|
}
|
|
|
|
/**
|
|
* Create a new positional parameter and bind the given value to it.
|
|
*
|
|
* Attention: If you are using positional parameters with the query builder you have
|
|
* to be very careful to bind all parameters in the order they appear in the SQL
|
|
* statement , otherwise they get bound in the wrong order which can lead to serious
|
|
* bugs in your code.
|
|
*
|
|
* Example:
|
|
* <code>
|
|
* $qb = $conn->createQueryBuilder();
|
|
* $qb->select('u.*')
|
|
* ->from('users', 'u')
|
|
* ->where('u.username = ' . $qb->createPositionalParameter('Foo', PDO::PARAM_STR))
|
|
* ->orWhere('u.username = ' . $qb->createPositionalParameter('Bar', PDO::PARAM_STR))
|
|
* </code>
|
|
*
|
|
* @param mixed $value
|
|
* @param mixed $type
|
|
* @return string
|
|
*/
|
|
public function createPositionalParameter($value, $type = \PDO::PARAM_STR)
|
|
{
|
|
$this->boundCounter++;
|
|
$this->setParameter($this->boundCounter, $value, $type);
|
|
return "?";
|
|
}
|
|
} |