Interface ExpressionInterface
An interface used by Expression objects.
Direct Implementers
- Cake\Database\Expression\BetweenExpression
- Cake\Database\Expression\CaseExpression
- Cake\Database\Expression\Comparison
- Cake\Database\Expression\IdentifierExpression
- Cake\Database\Expression\OrderClauseExpression
- Cake\Database\Expression\QueryExpression
- Cake\Database\Expression\UnaryExpression
- Cake\Database\Expression\ValuesExpression
- Cake\Database\Query
Indirect Implementers
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() 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( 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.