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Polished QueryBuilder API documentation and added another test.

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This commit is contained in:
Roman S. Borschel 2010-05-07 13:36:25 +02:00
parent 3001d26ad4
commit 8d52967fcd
3 changed files with 187 additions and 135 deletions
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5
lib/Doctrine/ORM/EntityManager.php
View File

@ -1,7 +1,5 @@
<?php
/*
* $Id$
*
* 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
@ -30,10 +28,7 @@ use Doctrine\Common\EventManager,
/**
* The EntityManager is the central access point to ORM functionality.
*
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @link www.doctrine-project.org
* @since 2.0
* @version $Revision$
* @author Benjamin Eberlei <kontakt@beberlei.de>
* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
* @author Jonathan Wage <jonwage@gmail.com>

258
lib/Doctrine/ORM/QueryBuilder.php
View File

@ -1,7 +1,5 @@
<?php
/*
* $Id$
*
* 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
@ -27,30 +25,29 @@ use Doctrine\ORM\Query\Expr;
* This class is responsible for building DQL query strings via an object oriented
* PHP interface.
*
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @link www.doctrine-project.org
* @since 2.0
* @version $Revision$
* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
* @author Jonathan Wage <jonwage@gmail.com>
* @author Roman Borschel <roman@code-factory.org>
*/
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 EntityManager $em The EntityManager used by this QueryBuilder.
* @var EntityManager The EntityManager used by this QueryBuilder.
*/
private $_em;
/**
* @var array $dqlParts The array of DQL parts collected.
* @var array The array of DQL parts collected.
*/
private $_dqlParts = array(
'select' => array(),
@ -105,13 +102,17 @@ class QueryBuilder
/**
* Gets an ExpressionBuilder used for object-oriented construction of query expressions.
* Intended for convenient inline usage. Example:
* This producer method is intended for convenient inline usage. Example:
*
* [php]
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u')
* ->where($qb->expr()->eq('u.id', 1));
* </code>
*
* For more complex expression construction, consider storing the expression
* builder object in a local variable.
*
* @return Expr
*/
@ -141,16 +142,9 @@ class QueryBuilder
}
/**
* Get the state of this query builder instance
* Get the state of this query builder instance.
*
* [php]
* if ($qb->getState() == QueryBuilder::STATE_DIRTY) {
* echo 'Query builder is dirty';
* } else {
* echo 'Query builder is clean';
* }
*
* @return integer
* @return integer Either QueryBuilder::STATE_DIRTY or QueryBuilder::STATE_CLEAN.
*/
public function getState()
{
@ -158,15 +152,16 @@ class QueryBuilder
}
/**
* Get the complete DQL string for this query builder instance
* Get the complete DQL string formed by the current specifications of this QueryBuilder.
*
* [php]
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u')
* echo $qb->getDql(); // SELECT u FROM User u
* </code>
*
* @return string The DQL string
* @return string The DQL query string.
*/
public function getDQL()
{
@ -198,14 +193,15 @@ class QueryBuilder
}
/**
* Constructs a Query instance from the current configuration of the builder.
* Constructs a Query instance from the current specifications of the builder.
*
* [php]
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u');
* $q = $qb->getQuery();
* $results = $q->execute();
* </code>
*
* @return Query
*/
@ -218,17 +214,19 @@ class QueryBuilder
}
/**
* Get the root alias for the query. This is the first entity alias involved
* in the construction of the query
* Gets the root alias of the query. This is the first entity alias involved
* in the construction of the query.
*
* [php]
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u');
*
* echo $qb->getRootAlias(); // u
* </code>
*
* @return string $rootAlias
* @todo Rename/Refactor: getRootAliases(), there can be multiple roots!
*/
public function getRootAlias()
{
@ -236,14 +234,15 @@ class QueryBuilder
}
/**
* Sets a query parameter.
* Sets a query parameter for the query being constructed.
*
* [php]
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', '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.
@ -256,9 +255,9 @@ class QueryBuilder
}
/**
* Sets a collection of query parameters.
* Sets a collection of query parameters for the query being constructed.
*
* [php]
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u')
@ -267,8 +266,9 @@ class QueryBuilder
* ':user_id1' => 1,
* ':user_id2' => 2
* ));
* </code>
*
* @param array $params
* @param array $params The query parameters to set.
* @return QueryBuilder This QueryBuilder instance.
*/
public function setParameters(array $params)
@ -278,17 +278,17 @@ class QueryBuilder
}
/**
* Get all defined parameters
* Gets all defined query parameters for the query being constructed.
*
* @return array Defined parameters
* @return array The currently defined query parameters.
*/
public function getParameters($params = array())
public function getParameters()
{
return $this->_params;
}
/**
* Gets a query parameter.
* 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.
@ -312,7 +312,7 @@ class QueryBuilder
/**
* 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 query builder.
* Returns NULL if {@link setFirstResult} was not applied to this QueryBuilder.
*
* @return integer The position of the first result.
*/
@ -324,7 +324,7 @@ class QueryBuilder
/**
* Sets the maximum number of results to retrieve (the "limit").
*
* @param integer $maxResults
* @param integer $maxResults The maximum number of results to retrieve.
* @return QueryBuilder This QueryBuilder instance.
*/
public function setMaxResults($maxResults)
@ -345,7 +345,10 @@ class QueryBuilder
}
/**
* Add a single DQL query part to the array of parts
* Either appends to or replaces a single, generic query part.
*
* The available parts are: 'select', 'from', 'join', 'set', 'where',
* 'groupBy', 'having' and 'orderBy'.
*
* @param string $dqlPartName
* @param string $dqlPart
@ -368,15 +371,17 @@ class QueryBuilder
}
/**
* Set the SELECT statement
* Specifies an item that is to be returned in the query result.
* Replaces any previously specified selections, if any.
*
* [php]
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u', 'p')
* ->from('User', 'u')
* ->leftJoin('u.Phonenumbers', 'p');
* </code>
*
* @param mixed $select String SELECT statement or SELECT Expr instance
* @param mixed $select The selection expressions.
* @return QueryBuilder This QueryBuilder instance.
*/
public function select($select = null)
@ -393,16 +398,17 @@ class QueryBuilder
}
/**
* Add to the SELECT statement
* Adds an item that is to be returned in the query result.
*
* [php]
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->addSelect('p')
* ->from('User', 'u')
* ->leftJoin('u.Phonenumbers', 'p');
* </code>
*
* @param mixed $select String SELECT statement or SELECT Expr instance
* @param mixed $select The selection expression.
* @return QueryBuilder This QueryBuilder instance.
*/
public function addSelect($select = null)
@ -419,16 +425,18 @@ class QueryBuilder
}
/**
* Construct a DQL DELETE query
* Turns the query being built into a bulk delete query that ranges over
* a certain entity type.
*
* [php]
* <code>
* $qb = $em->createQueryBuilder()
* ->delete('User', 'u')
* ->where('u.id = :user_id');
* ->setParameter(':user_id', 1);
* </code>
*
* @param string $delete The model to delete
* @param string $alias The alias of the model
* @param string $delete The class/type whose instances are subject to the deletion.
* @param string $alias The class/type alias used in the constructed query.
* @return QueryBuilder This QueryBuilder instance.
*/
public function delete($delete = null, $alias = null)
@ -443,16 +451,18 @@ class QueryBuilder
}
/**
* Construct a DQL UPDATE query
* Turns the query being built into a bulk update query that ranges over
* a certain entity type.
*
* [php]
* <code>
* $qb = $em->createQueryBuilder()
* ->update('User', 'u')
* ->set('u.password', md5('password'))
* ->where('u.id = ?');
* </code>
*
* @param string $update The model to update
* @param string $alias The alias of the model
* @param string $update The class/type whose instances are subject to the update.
* @param string $alias The class/type alias used in the constructed query.
* @return QueryBuilder This QueryBuilder instance.
*/
public function update($update = null, $alias = null)
@ -467,12 +477,14 @@ class QueryBuilder
}
/**
* Specify the FROM part when constructing a SELECT DQL query
* Create and add a query root corresponding to the entity identified by the given alias,
* forming a cartesian product with any existing query roots.
*
* [php]
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u')
* </code>
*
* @param string $from The class name.
* @param string $alias The alias of the class.
@ -484,13 +496,18 @@ class QueryBuilder
}
/**
* Add a INNER JOIN to an associated class.
* Creates and adds a join over an entity association to the query.
*
* [php]
* The entities in the joined association will be fetched as part of the query
* result if the alias used for the joined association is placed in the select
* expressions.
*
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u')
* ->innerJoin('u.Phonenumbers', 'p', Expr\Join::WITH, 'p.is_primary = 1');
* ->join('u.Phonenumbers', 'p', Expr\Join::WITH, 'p.is_primary = 1');
* </code>
*
* @param string $join The relationship to join
* @param string $alias The alias of the join
@ -504,7 +521,11 @@ class QueryBuilder
}
/**
* Add an INNER JOIN to an associated class.
* Creates and adds a join over an entity association to the query.
*
* The entities in the joined association will be fetched as part of the query
* result if the alias used for the joined association is placed in the select
* expressions.
*
* [php]
* $qb = $em->createQueryBuilder()
@ -526,19 +547,24 @@ class QueryBuilder
}
/**
* Add a LEFT JOIN
* Creates and adds a left join over an entity association to the query.
*
* [php]
* The entities in the joined association will be fetched as part of the query
* result if the alias used for the joined association is placed in the select
* expressions.
*
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u')
* ->leftJoin('u.Phonenumbers', 'p', Expr\Join::WITH, 'p.is_primary = 1');
* </code>
*
* @param string $join The relationship to join
* @param string $alias The alias of the join
* @param string $conditionType The condition type constant. Either ON or WITH.
* @param string $condition The condition for the join
* @return QueryBuilder $qb
* @return QueryBuilder This QueryBuilder instance.
*/
public function leftJoin($join, $alias, $conditionType = null, $condition = null)
{
@ -548,17 +574,18 @@ class QueryBuilder
}
/**
* Add a SET statement for a DQL UPDATE query
* Sets a new value for a field in a bulk update query.
*
* [php]
* <code>
* $qb = $em->createQueryBuilder()
* ->update('User', 'u')
* ->set('u.password', md5('password'))
* ->where('u.id = ?');
* </code>
*
* @param string $key The key/field to set
* @param string $value The value, expression, placeholder, etc. to use in the SET
* @return QueryBuilder $qb
* @param string $key The key/field to set.
* @param string $value The value, expression, placeholder, etc.
* @return QueryBuilder This QueryBuilder instance.
*/
public function set($key, $value)
{
@ -566,9 +593,10 @@ class QueryBuilder
}
/**
* Set and override any existing WHERE statements
* Specifies one or more restrictions to the query result.
* Replaces any previously specified restrictions, if any.
*
* [php]
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u')
@ -584,9 +612,10 @@ class QueryBuilder
* $qb->update('User', 'u')
* ->set('u.password', md5('password'))
* ->where($or);
* </code>
*
* @param mixed $predicates The predicates.
* @return QueryBuilder
* @param mixed $predicates The restriction predicates.
* @return QueryBuilder This QueryBuilder instance.
*/
public function where($predicates)
{
@ -598,17 +627,19 @@ class QueryBuilder
}
/**
* Add a new WHERE statement with an AND
* Adds one or more restrictions to the query results, forming a logical
* conjunction with any previously specified restrictions.
*
* [php]
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u')
* ->where('u.username LIKE ?')
* ->andWhere('u.is_active = 1');
* </code>
*
* @param mixed $where The WHERE statement
* @return QueryBuilder $qb
* @param mixed $where The query restrictions.
* @return QueryBuilder This QueryBuilder instance.
* @see where()
*/
public function andWhere($where)
@ -627,14 +658,16 @@ class QueryBuilder
}
/**
* Add a new WHERE statement with an OR
* Adds one or more restrictions to the query results, forming a logical
* disjunction with any previously specified restrictions.
*
* [php]
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u')
* ->where('u.id = 1')
* ->orWhere('u.id = 2');
* </code>
*
* @param mixed $where The WHERE statement
* @return QueryBuilder $qb
@ -656,16 +689,18 @@ class QueryBuilder
}
/**
* Set the GROUP BY clause
* Specifies a grouping over the results of the query.
* Replaces any previously specified groupings, if any.
*
* [php]
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u')
* ->groupBy('u.id');
* </code>
*
* @param string $groupBy The GROUP BY clause
* @return QueryBuilder $qb
* @param string $groupBy The grouping expression.
* @return QueryBuilder This QueryBuilder instance.
*/
public function groupBy($groupBy)
{
@ -674,17 +709,18 @@ class QueryBuilder
/**
* Add to the existing GROUP BY clause
* Adds a grouping expression to the query.
*
* [php]
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u')
* ->groupBy('u.last_login');
* ->addGroupBy('u.created_at')
* ->groupBy('u.lastLogin');
* ->addGroupBy('u.createdAt')
* </code>
*
* @param string $groupBy The GROUP BY clause
* @return QueryBuilder $qb
* @param string $groupBy The grouping expression.
* @return QueryBuilder This QueryBuilder instance.
*/
public function addGroupBy($groupBy)
{
@ -692,10 +728,11 @@ class QueryBuilder
}
/**
* Set the HAVING clause
* Specifies a restriction over the groups of the query.
* Replaces any previous having restrictions, if any.
*
* @param mixed $having
* @return QueryBuilder $qb
* @param mixed $having The restriction over the groups.
* @return QueryBuilder This QueryBuilder instance.
*/
public function having($having)
{
@ -707,10 +744,11 @@ class QueryBuilder
}
/**
* Add to the existing HAVING clause with an AND
* Adds a restriction over the groups of the query, forming a logical
* conjunction with any existing having restrictions.
*
* @param mixed $having
* @return QueryBuilder $qb
* @param mixed $having The restriction to append.
* @return QueryBuilder This QueryBuilder instance.
*/
public function andHaving($having)
{
@ -728,10 +766,11 @@ class QueryBuilder
}
/**
* Add to the existing HAVING clause with an OR
* Adds a restriction over the groups of the query, forming a logical
* disjunction with any existing having restrictions.
*
* @param mixed $having
* @return QueryBuilder $qb
* @param mixed $having The restriction to add.
* @return QueryBuilder This QueryBuilder instance.
*/
public function orHaving($having)
{
@ -749,11 +788,12 @@ class QueryBuilder
}
/**
* Set the ORDER BY clause
* Specifies an ordering for the query results.
* Replaces any previously specified orderings, if any.
*
* @param string $sort What to sort on
* @param string $order Optional: The order to sort the results.
* @return QueryBuilder $qb
* @param string $sort The ordering expression.
* @param string $order The ordering direction.
* @return QueryBuilder This QueryBuilder instance.
*/
public function orderBy($sort, $order = null)
{
@ -762,11 +802,11 @@ class QueryBuilder
}
/**
* Add to the existing ORDER BY clause
* Adds an ordering to the query results.
*
* @param string $sort What to sort on
* @param string $order Optional: The order to sort the results.
* @return QueryBuilder $qb
* @param string $sort The ordering expression.
* @param string $order The ordering direction.
* @return QueryBuilder This QueryBuilder instance.
*/
public function addOrderBy($sort, $order = null)
{
@ -774,10 +814,11 @@ class QueryBuilder
}
/**
* Get a DQL part or parts by the part name
* Get a query part by its name.
*
* @param string $queryPartName
* @return mixed $queryPart
* @todo Rename: getQueryPart (or remove?)
*/
public function getDQLPart($queryPartName)
{
@ -785,9 +826,10 @@ class QueryBuilder
}
/**
* Get the full DQL parts array
* Get all query parts.
*
* @return array $dqlParts
* @todo Rename: getQueryParts (or remove?)
*/
public function getDQLParts()
{
@ -836,6 +878,12 @@ class QueryBuilder
. (isset($options['post']) ? $options['post'] : '');
}
/**
* Gets a string representation of this QueryBuilder which corresponds to
* the final DQL query being constructed.
*
* @return string The string representation of this QueryBuilder.
*/
public function __toString()
{
return $this->getDQL();

19
tests/Doctrine/Tests/ORM/QueryBuilderTest.php
View File

@ -1,7 +1,5 @@
<?php
/*
* $Id$
*
* 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
@ -32,10 +30,7 @@ require_once __DIR__ . '/../TestInit.php';
*
* @author Jonathan H. Wage <jonwage@gmail.com>
* @author Roman Borschel <roman@code-factory.org
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @link http://www.phpdoctrine.org
* @since 2.0
* @version $Revision$
*/
class QueryBuilderTest extends \Doctrine\Tests\OrmTestCase
{
@ -181,6 +176,20 @@ class QueryBuilderTest extends \Doctrine\Tests\OrmTestCase
$this->assertValidQueryBuilder($qb, 'SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE (u.id = :uid) OR (u.id = :uid2)');
}
public function testComplexAndWhereOrWhereNesting()
{
$qb = $this->_em->createQueryBuilder();
$qb->select('u')
->from('Doctrine\Tests\Models\CMS\CmsUser', 'u')
->where('u.id = :uid')
->orWhere('u.id = :uid2')
->andWhere('u.id = :uid3')
->orWhere('u.name = :name1', 'u.name = :name2')
->andWhere('u.name <> :noname');
$this->assertValidQueryBuilder($qb, 'SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE ((((u.id = :uid) OR (u.id = :uid2)) AND (u.id = :uid3)) OR (u.name = :name1) OR (u.name = :name2)) AND (u.name <> :noname)');
}
public function testAndWhereIn()
{
$qb = $this->_em->createQueryBuilder();