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CoalesceColumnsExpression

Type
Class
Namespace
craft\db
Inherits
craft\db\CoalesceColumnsExpression » yii\base\BaseObject
Implements
craft\db\ExpressionInterface, yii\base\Configurable
Since
5.1.0

CoalesceColumnsExpression represents a COALESCE() SQL statement for a list of columns.

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Public Properties

PropertyDescription
columnsstring[] – The columns that should be coalesced.

columns

Type
string[]
Default value
null

The columns that should be coalesced.

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Public Methods

MethodDescription
__call()Calls the named method which is not a class method.
__construct()Constructor
__get()Returns the value of an object property.
__isset()Checks if a property is set, i.e. defined and not null.
__set()Sets value of an object property.
__unset()Sets an object property to null.
canGetProperty()Returns a value indicating whether a property can be read.
canSetProperty()Returns a value indicating whether a property can be set.
className()Returns the fully qualified name of this class.
getSql()
hasMethod()Returns a value indicating whether a method is defined.
hasProperty()Returns a value indicating whether a property is defined.
init()Initializes the object.

__construct()

Constructor

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Arguments

  • $columns (string[]) – The columns that should be coalesced.
  • $config (array)

getSql()

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Arguments

  • $params