Class OrderClauseExpression

An expression object for complex ORDER BY clauses

Namespace: Cake\Database\Expression

Properties summary

  • $_direction protected
    string

    The direction of sorting.

  • $_field protected
    string|array|\Cake\Database\ExpressionInterface

    The field name or expression to be used in the left hand side of the operator

Method Summary

  • __clone() public

    Create a deep clone of the order clause.

  • __construct() public

    Constructor

  • getField() public

    Returns the field name

  • setField() public

    Sets the field name

  • sql() public

    Converts the Node into a SQL string fragment.

  • traverse() public

    Iterates over each part of the expression recursively for every level of the expressions tree and executes the $visitor callable passing as first parameter the instance of the expression currently being iterated.

Method Detail

__clone() public 

__clone()

Create a deep clone of the order clause.

__construct() public 

__construct(mixed $field, mixed $direction)

Constructor

Parameters

\Cake\Database\ExpressionInterface|string $field

The field to order on.

string $direction

The direction to sort on.

getField() public 

getField()

Returns the field name

Returns

string|array|\Cake\Database\ExpressionInterface

setField() public 

setField(mixed $field)

Sets the field name

Parameters

string|array|\Cake\Database\ExpressionInterface $field

The field to compare with.

sql() public 

sql(\Cake\Database\ValueBinder $generator)

Converts the Node into a SQL string fragment.

Parameters

\Cake\Database\ValueBinder $generator

Placeholder generator object

Returns

string

traverse() public 

traverse(\Closure $visitor)

Iterates over each part of the expression recursively for every level of the expressions tree and executes the $visitor callable passing as first parameter the instance of the expression currently being iterated.

Parameters

\Closure $visitor

The callable to apply to all nodes.

Returns

$this

Property Detail

$_direction protected

The direction of sorting.

Type

string

$_field protected

The field name or expression to be used in the left hand side of the operator

Type

string|array|\Cake\Database\ExpressionInterface

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https://api.cakephp.org/4.0/class-Cake.Database.Expression.OrderClauseExpression.html