Arel::Nodes::Node

Abstract base class for all AST nodes

Public Instance Methods

and(right) click to toggle source

Factory method to create an Nodes::And node.

    # File lib/arel/nodes/node.rb, line 15
15:       def and right
16:         Nodes::And.new self, right
17:       end

or(right) click to toggle source

Factory method to create a Nodes::Grouping node that has an Nodes::Or node as a child.

    # File lib/arel/nodes/node.rb, line 9
 9:       def or right
10:         Nodes::Grouping.new Nodes::Or.new(self, right)
11:       end

to_sql(engine = Table.engine) click to toggle source

FIXME: this method should go away. I don’t like people calling to_sql on non-head nodes. This forces us to walk the AST until we can find a node that has a “relation” member.

Maybe we should just use `Table.engine`? :’(

    # File lib/arel/nodes/node.rb, line 24
24:       def to_sql engine = Table.engine
25:         viz = Visitors.for engine
26:         viz.accept self
27:       end

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Arel::Nodes::Node

Public Instance Methods