PHP Class atk4\data\Field_SQL_Expression

Inheritance: extends Field_SQL, use trait atk4\core\InitializerTrait
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Méthodes publiques

Свойство Type Description
$expr mixed Used expression.
$read_only boolean Expressions are always read_only.

Méthodes publiques

Méthode Description
_init ( )
getDSQLExpression ( atk\dsql\Expression $expression ) : atk\dsql\Expression When field is used as expression, this method will be called.
init ( ) Initialization.
useAlias ( ) : boolean Should this field use alias? Expression fields always need alias.

Method Details

_init() public méthode

public _init ( )

getDSQLExpression() public méthode

When field is used as expression, this method will be called.
public getDSQLExpression ( atk\dsql\Expression $expression ) : atk\dsql\Expression
$expression atk\dsql\Expression
Résultat atk\dsql\Expression

init() public méthode

Initialization.
public init ( )

useAlias() public méthode

Should this field use alias? Expression fields always need alias.
public useAlias ( ) : boolean
Résultat boolean

Property Details

$expr public_oe property

Used expression.
public mixed $expr
Résultat mixed

$read_only public_oe property

Expressions are always read_only.
public bool $read_only
Résultat boolean