blob: 5278ab06a14e9758f9100a988867bd0f88792295 (
plain) (
tree)
|
|
require 'arel/collectors/sql_string'
module Arel
class TreeManager
include Arel::FactoryMethods
attr_reader :ast, :engine
attr_accessor :bind_values
def initialize
@ctx = nil
@bind_values = []
end
def to_dot
collector = Arel::Collectors::PlainString.new
collector = Visitors::Dot.new.accept @ast, collector
collector.value
end
def to_sql engine = Table.engine
collector = Arel::Collectors::SQLString.new
collector = engine.connection.visitor.accept @ast, collector
collector.value
end
def initialize_copy other
super
@ast = @ast.clone
end
def where expr
if Arel::TreeManager === expr
expr = expr.ast
end
@ctx.wheres << expr
self
end
end
end
|