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Contents
module Polyamorous
class Join
include TreeNode
attr_accessor :name
attr_reader :type, :klass
def initialize(name, type = InnerJoin, klass = nil)
@name = name
@type = convert_to_arel_join_type(type)
@klass = convert_to_class(klass) if klass
end
def klass=(klass)
@klass = convert_to_class(klass) if klass
end
def type=(type)
@type = convert_to_arel_join_type(type) if type
end
def hash
[@name, @type, @klass].hash
end
def eql?(other)
self.class == other.class &&
self.name == other.name &&
self.type == other.type &&
self.klass == other.klass
end
alias :== :eql?
def add_to_tree(hash)
hash[self] ||= {}
end
private
def convert_to_arel_join_type(type)
case type
when 'inner', :inner
InnerJoin
when 'outer', :outer
OuterJoin
when Class
if [InnerJoin, OuterJoin].include? type
type
else
raise ArgumentError, "#{type} cannot be converted to an ARel join type"
end
else
raise ArgumentError, "#{type} cannot be converted to an ARel join type"
end
end
def convert_to_class(value)
case value
when String, Symbol
Kernel.const_get(value)
when Class
value
else
raise ArgumentError, "#{value} cannot be converted to a Class"
end
end
end
end
Version data entries
40 entries across 40 versions & 6 rubygems