Interface ExpressionInterface

An interface used by Expression objects.

Direct Implementers

Indirect Implementers

Namespace: Cake\Database
Location: Database/ExpressionInterface.php

Method Summary

  • 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

sql()source 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()source public 

traverse( callable $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

callable $visitor
The callable to apply to all nodes.

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https://api.cakephp.org/3.4/class-Cake.Database.ExpressionInterface.html