RowCountProjection Class Reference
[Projections]

---

Projection for counting the raw number of resulting rows (using the primary key).

Example:

 // SELECT COUNT(entity_id) FROM ...
 $query = new EntityQuery(Entity::orm());
 $query->get(new RowCountProjection());
 echo $query->getCell();

Hint: there is a shorthand for counting rows: EntityQuery::getCount()

Definition at line 34 of file RowCountProjection.class.php.

Inheritance diagram for RowCountProjection:

List of all members.

Public Member Functions
	__construct ($alias=null)
	fill (SelectQuery $selectQuery, EntityQueryBuilder $entityQueryBuilder)
	Fills the SelectQuery in context of the specified ORM-related entity.
	getFunc ()
	Gets the name of the aggregates.
Protected Member Functions
	getSqlFunction (EntityQueryBuilder $entityQueryBuilder)
	Create a SQLFunction with the expression as the argument.
Protected Attributes
	$alias
	$expression

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Constructor & Destructor Documentation

RowCountProjection::__construct

(

$

alias = null

)

Parameters:

string

$alias optional label for the result of the aggregator

Definition at line 39 of file RowCountProjection.class.php.

References AggrProjection::$alias.

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Member Function Documentation

CountProjection::fill	(	SelectQuery $	selectQuery,
		EntityQueryBuilder $	entityQueryBuilder
	)			[inherited]

Fills the SelectQuery in context of the specified ORM-related entity.

Returns:

void

Reimplemented from AggrProjection.

Definition at line 45 of file CountProjection.class.php.

References EntityQueryBuilder::getEntity().

AggrProjection::getFunc

(

)

[inherited]

Gets the name of the aggregates.

Returns:

string

Definition at line 50 of file AggrProjection.class.php.

Referenced by DistinctCountProjection::getSqlFunction(), and AggrProjection::getSqlFunction().

AggrProjection::getSqlFunction

(

EntityQueryBuilder $

entityQueryBuilder

)

[protected, inherited]

Create a SQLFunction with the expression as the argument.

Parameters:

EntityQuery

$entityQuery

Returns:

SqlFunction

Reimplemented in DistinctCountProjection.

Definition at line 66 of file AggrProjection.class.php.

References AggrProjection::getFunc(), and EntityQueryBuilder::subject().

Referenced by AggrProjection::fill().

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Member Data Documentation

AggrProjection::$alias [protected, inherited]

Definition at line 29 of file AggrProjection.class.php.

Referenced by __construct(), CountProjection::__construct(), and AggrProjection::__construct().

AggrProjection::$expression [protected, inherited]

Definition at line 28 of file AggrProjection.class.php.

Referenced by AggrProjection::__construct().

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The documentation for this class was generated from the following file:

• Orm/Query/Projections/RowCountProjection.class.php