--- /dev/null
+<?php
+/*
+ * 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 MIT license. For more information, see
+ * <http://www.doctrine-project.org>.
+ */
+
+namespace Doctrine\DBAL\Query;
+
+use Doctrine\DBAL\Query\Expression\CompositeExpression,
+ Doctrine\DBAL\Connection;
+
+/**
+ * QueryBuilder class is responsible to dynamically create SQL queries.
+ *
+ * Important: Verify that every feature you use will work with your database vendor.
+ * SQL Query Builder does not attempt to validate the generated SQL at all.
+ *
+ * The query builder does no validation whatsoever if certain features even work with the
+ * underlying database vendor. Limit queries and joins are NOT applied to UPDATE and DELETE statements
+ * even if some vendors such as MySQL support it.
+ *
+ * @license http://www.opensource.org/licenses/lgpl-license.php LGPL
+ * @link www.doctrine-project.com
+ * @since 2.1
+ * @author Guilherme Blanco <guilhermeblanco@hotmail.com>
+ * @author Benjamin Eberlei <kontakt@beberlei.de>
+ */
+class QueryBuilder
+{
+ /* The query types. */
+ const SELECT = 0;
+ const DELETE = 1;
+ const UPDATE = 2;
+
+ /** The builder states. */
+ const STATE_DIRTY = 0;
+ const STATE_CLEAN = 1;
+
+ /**
+ * @var Doctrine\DBAL\Connection DBAL Connection
+ */
+ private $connection = null;
+
+ /**
+ * @var array The array of SQL parts collected.
+ */
+ private $sqlParts = array(
+ 'select' => array(),
+ 'from' => array(),
+ 'join' => array(),
+ 'set' => array(),
+ 'where' => null,
+ 'groupBy' => array(),
+ 'having' => null,
+ 'orderBy' => array()
+ );
+
+ /**
+ * @var string The complete SQL string for this query.
+ */
+ private $sql;
+
+ /**
+ * @var array The query parameters.
+ */
+ private $params = array();
+
+ /**
+ * @var array The parameter type map of this query.
+ */
+ private $paramTypes = array();
+
+ /**
+ * @var integer The type of query this is. Can be select, update or delete.
+ */
+ private $type = self::SELECT;
+
+ /**
+ * @var integer The state of the query object. Can be dirty or clean.
+ */
+ private $state = self::STATE_CLEAN;
+
+ /**
+ * @var integer The index of the first result to retrieve.
+ */
+ private $firstResult = null;
+
+ /**
+ * @var integer The maximum number of results to retrieve.
+ */
+ private $maxResults = null;
+
+ /**
+ * The counter of bound parameters used with {@see bindValue)
+ *
+ * @var int
+ */
+ private $boundCounter = 0;
+
+ /**
+ * Initializes a new <tt>QueryBuilder</tt>.
+ *
+ * @param \Doctrine\DBAL\Connection $connection DBAL Connection
+ */
+ public function __construct(Connection $connection)
+ {
+ $this->connection = $connection;
+ }
+
+ /**
+ * Gets an ExpressionBuilder used for object-oriented construction of query expressions.
+ * This producer method is intended for convenient inline usage. Example:
+ *
+ * <code>
+ * $qb = $conn->createQueryBuilder()
+ * ->select('u')
+ * ->from('users', 'u')
+ * ->where($qb->expr()->eq('u.id', 1));
+ * </code>
+ *
+ * For more complex expression construction, consider storing the expression
+ * builder object in a local variable.
+ *
+ * @return \Doctrine\DBAL\Query\Expression\ExpressionBuilder
+ */
+ public function expr()
+ {
+ return $this->connection->getExpressionBuilder();
+ }
+
+ /**
+ * Get the type of the currently built query.
+ *
+ * @return integer
+ */
+ public function getType()
+ {
+ return $this->type;
+ }
+
+ /**
+ * Get the associated DBAL Connection for this query builder.
+ *
+ * @return \Doctrine\DBAL\Connection
+ */
+ public function getConnection()
+ {
+ return $this->connection;
+ }
+
+ /**
+ * Get the state of this query builder instance.
+ *
+ * @return integer Either QueryBuilder::STATE_DIRTY or QueryBuilder::STATE_CLEAN.
+ */
+ public function getState()
+ {
+ return $this->state;
+ }
+
+ /**
+ * Execute this query using the bound parameters and their types.
+ *
+ * Uses {@see Connection::executeQuery} for select statements and {@see Connection::executeUpdate}
+ * for insert, update and delete statements.
+ *
+ * @return mixed
+ */
+ public function execute()
+ {
+ if ($this->type == self::SELECT) {
+ return $this->connection->executeQuery($this->getSQL(), $this->params, $this->paramTypes);
+ } else {
+ return $this->connection->executeUpdate($this->getSQL(), $this->params, $this->paramTypes);
+ }
+ }
+
+ /**
+ * Get the complete SQL string formed by the current specifications of this QueryBuilder.
+ *
+ * <code>
+ * $qb = $em->createQueryBuilder()
+ * ->select('u')
+ * ->from('User', 'u')
+ * echo $qb->getSQL(); // SELECT u FROM User u
+ * </code>
+ *
+ * @return string The sql query string.
+ */
+ public function getSQL()
+ {
+ if ($this->sql !== null && $this->state === self::STATE_CLEAN) {
+ return $this->sql;
+ }
+
+ $sql = '';
+
+ switch ($this->type) {
+ case self::DELETE:
+ $sql = $this->getSQLForDelete();
+ break;
+
+ case self::UPDATE:
+ $sql = $this->getSQLForUpdate();
+ break;
+
+ case self::SELECT:
+ default:
+ $sql = $this->getSQLForSelect();
+ break;
+ }
+
+ $this->state = self::STATE_CLEAN;
+ $this->sql = $sql;
+
+ return $sql;
+ }
+
+ /**
+ * Sets a query parameter for the query being constructed.
+ *
+ * <code>
+ * $qb = $conn->createQueryBuilder()
+ * ->select('u')
+ * ->from('users', 'u')
+ * ->where('u.id = :user_id')
+ * ->setParameter(':user_id', 1);
+ * </code>
+ *
+ * @param string|integer $key The parameter position or name.
+ * @param mixed $value The parameter value.
+ * @param string|null $type PDO::PARAM_*
+ * @return QueryBuilder This QueryBuilder instance.
+ */
+ public function setParameter($key, $value, $type = null)
+ {
+ if ($type !== null) {
+ $this->paramTypes[$key] = $type;
+ }
+
+ $this->params[$key] = $value;
+
+ return $this;
+ }
+
+ /**
+ * Sets a collection of query parameters for the query being constructed.
+ *
+ * <code>
+ * $qb = $conn->createQueryBuilder()
+ * ->select('u')
+ * ->from('users', 'u')
+ * ->where('u.id = :user_id1 OR u.id = :user_id2')
+ * ->setParameters(array(
+ * ':user_id1' => 1,
+ * ':user_id2' => 2
+ * ));
+ * </code>
+ *
+ * @param array $params The query parameters to set.
+ * @param array $types The query parameters types to set.
+ * @return QueryBuilder This QueryBuilder instance.
+ */
+ public function setParameters(array $params, array $types = array())
+ {
+ $this->paramTypes = $types;
+ $this->params = $params;
+
+ return $this;
+ }
+
+ /**
+ * Gets all defined query parameters for the query being constructed.
+ *
+ * @return array The currently defined query parameters.
+ */
+ public function getParameters()
+ {
+ return $this->params;
+ }
+
+ /**
+ * Gets a (previously set) query parameter of the query being constructed.
+ *
+ * @param mixed $key The key (index or name) of the bound parameter.
+ * @return mixed The value of the bound parameter.
+ */
+ public function getParameter($key)
+ {
+ return isset($this->params[$key]) ? $this->params[$key] : null;
+ }
+
+ /**
+ * Sets the position of the first result to retrieve (the "offset").
+ *
+ * @param integer $firstResult The first result to return.
+ * @return \Doctrine\DBAL\Query\QueryBuilder This QueryBuilder instance.
+ */
+ public function setFirstResult($firstResult)
+ {
+ $this->state = self::STATE_DIRTY;
+ $this->firstResult = $firstResult;
+ return $this;
+ }
+
+ /**
+ * Gets the position of the first result the query object was set to retrieve (the "offset").
+ * Returns NULL if {@link setFirstResult} was not applied to this QueryBuilder.
+ *
+ * @return integer The position of the first result.
+ */
+ public function getFirstResult()
+ {
+ return $this->firstResult;
+ }
+
+ /**
+ * Sets the maximum number of results to retrieve (the "limit").
+ *
+ * @param integer $maxResults The maximum number of results to retrieve.
+ * @return \Doctrine\DBAL\Query\QueryBuilder This QueryBuilder instance.
+ */
+ public function setMaxResults($maxResults)
+ {
+ $this->state = self::STATE_DIRTY;
+ $this->maxResults = $maxResults;
+ return $this;
+ }
+
+ /**
+ * Gets the maximum number of results the query object was set to retrieve (the "limit").
+ * Returns NULL if {@link setMaxResults} was not applied to this query builder.
+ *
+ * @return integer Maximum number of results.
+ */
+ public function getMaxResults()
+ {
+ return $this->maxResults;
+ }
+
+ /**
+ * Either appends to or replaces a single, generic query part.
+ *
+ * The available parts are: 'select', 'from', 'set', 'where',
+ * 'groupBy', 'having' and 'orderBy'.
+ *
+ * @param string $sqlPartName
+ * @param string $sqlPart
+ * @param boolean $append
+ * @return \Doctrine\DBAL\Query\QueryBuilder This QueryBuilder instance.
+ */
+ public function add($sqlPartName, $sqlPart, $append = false)
+ {
+ $isArray = is_array($sqlPart);
+ $isMultiple = is_array($this->sqlParts[$sqlPartName]);
+
+ if ($isMultiple && !$isArray) {
+ $sqlPart = array($sqlPart);
+ }
+
+ $this->state = self::STATE_DIRTY;
+
+ if ($append) {
+ if ($sqlPartName == "orderBy" || $sqlPartName == "groupBy" || $sqlPartName == "select" || $sqlPartName == "set") {
+ foreach ($sqlPart as $part) {
+ $this->sqlParts[$sqlPartName][] = $part;
+ }
+ } else if ($isArray && is_array($sqlPart[key($sqlPart)])) {
+ $key = key($sqlPart);
+ $this->sqlParts[$sqlPartName][$key][] = $sqlPart[$key];
+ } else if ($isMultiple) {
+ $this->sqlParts[$sqlPartName][] = $sqlPart;
+ } else {
+ $this->sqlParts[$sqlPartName] = $sqlPart;
+ }
+
+ return $this;
+ }
+
+ $this->sqlParts[$sqlPartName] = $sqlPart;
+
+ return $this;
+ }
+
+ /**
+ * Specifies an item that is to be returned in the query result.
+ * Replaces any previously specified selections, if any.
+ *
+ * <code>
+ * $qb = $conn->createQueryBuilder()
+ * ->select('u.id', 'p.id')
+ * ->from('users', 'u')
+ * ->leftJoin('u', 'phonenumbers', 'p', 'u.id = p.user_id');
+ * </code>
+ *
+ * @param mixed $select The selection expressions.
+ * @return QueryBuilder This QueryBuilder instance.
+ */
+ public function select($select = null)
+ {
+ $this->type = self::SELECT;
+
+ if (empty($select)) {
+ return $this;
+ }
+
+ $selects = is_array($select) ? $select : func_get_args();
+
+ return $this->add('select', $selects, false);
+ }
+
+ /**
+ * Adds an item that is to be returned in the query result.
+ *
+ * <code>
+ * $qb = $conn->createQueryBuilder()
+ * ->select('u.id')
+ * ->addSelect('p.id')
+ * ->from('users', 'u')
+ * ->leftJoin('u', 'phonenumbers', 'u.id = p.user_id');
+ * </code>
+ *
+ * @param mixed $select The selection expression.
+ * @return QueryBuilder This QueryBuilder instance.
+ */
+ public function addSelect($select = null)
+ {
+ $this->type = self::SELECT;
+
+ if (empty($select)) {
+ return $this;
+ }
+
+ $selects = is_array($select) ? $select : func_get_args();
+
+ return $this->add('select', $selects, true);
+ }
+
+ /**
+ * Turns the query being built into a bulk delete query that ranges over
+ * a certain table.
+ *
+ * <code>
+ * $qb = $conn->createQueryBuilder()
+ * ->delete('users', 'u')
+ * ->where('u.id = :user_id');
+ * ->setParameter(':user_id', 1);
+ * </code>
+ *
+ * @param string $delete The table whose rows are subject to the deletion.
+ * @param string $alias The table alias used in the constructed query.
+ * @return QueryBuilder This QueryBuilder instance.
+ */
+ public function delete($delete = null, $alias = null)
+ {
+ $this->type = self::DELETE;
+
+ if ( ! $delete) {
+ return $this;
+ }
+
+ return $this->add('from', array(
+ 'table' => $delete,
+ 'alias' => $alias
+ ));
+ }
+
+ /**
+ * Turns the query being built into a bulk update query that ranges over
+ * a certain table
+ *
+ * <code>
+ * $qb = $conn->createQueryBuilder()
+ * ->update('users', 'u')
+ * ->set('u.password', md5('password'))
+ * ->where('u.id = ?');
+ * </code>
+ *
+ * @param string $update The table whose rows are subject to the update.
+ * @param string $alias The table alias used in the constructed query.
+ * @return QueryBuilder This QueryBuilder instance.
+ */
+ public function update($update = null, $alias = null)
+ {
+ $this->type = self::UPDATE;
+
+ if ( ! $update) {
+ return $this;
+ }
+
+ return $this->add('from', array(
+ 'table' => $update,
+ 'alias' => $alias
+ ));
+ }
+
+ /**
+ * Create and add a query root corresponding to the table identified by the
+ * given alias, forming a cartesian product with any existing query roots.
+ *
+ * <code>
+ * $qb = $conn->createQueryBuilder()
+ * ->select('u.id')
+ * ->from('users', 'u')
+ * </code>
+ *
+ * @param string $from The table
+ * @param string $alias The alias of the table
+ * @return QueryBuilder This QueryBuilder instance.
+ */
+ public function from($from, $alias)
+ {
+ return $this->add('from', array(
+ 'table' => $from,
+ 'alias' => $alias
+ ), true);
+ }
+
+ /**
+ * Creates and adds a join to the query.
+ *
+ * <code>
+ * $qb = $conn->createQueryBuilder()
+ * ->select('u.name')
+ * ->from('users', 'u')
+ * ->join('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 $condition The condition for the join
+ * @return QueryBuilder This QueryBuilder instance.
+ */
+ public function join($fromAlias, $join, $alias, $condition = null)
+ {
+ return $this->innerJoin($fromAlias, $join, $alias, $condition);
+ }
+
+ /**
+ * Creates and adds a join to the query.
+ *
+ * <code>
+ * $qb = $conn->createQueryBuilder()
+ * ->select('u.name')
+ * ->from('users', 'u')
+ * ->innerJoin('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 $condition The condition for the join
+ * @return QueryBuilder This QueryBuilder instance.
+ */
+ public function innerJoin($fromAlias, $join, $alias, $condition = null)
+ {
+ return $this->add('join', array(
+ $fromAlias => array(
+ '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;
+ }
+
+ 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 "?";
+ }
+}