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module Mobility
module Backend
=begin
Adds {#for} method to backend to return ORM-specific backend.
@example KeyValue backend for AR model
class Post < ActiveRecord::Base
# ...
end
Mobility::Backend::KeyValue.for(Post)
#=> Mobility::Backend::ActiveRecord::KeyValue
=end
module OrmDelegator
# @param [Class] model_class Class of model
# @return [Class] Class of backend to use for model
def for(model_class)
if Loaded::ActiveRecord && model_class < ::ActiveRecord::Base
const_get(name.split("::").insert(-2, "ActiveRecord").join("::"))
elsif Loaded::Sequel && model_class < ::Sequel::Model
const_get(name.split("::").insert(-2, "Sequel").join("::"))
else
raise ArgumentError, "#{name.split('::').last} backend can only be used by ActiveRecord or Sequel models"
end
end
def self.included(base)
base.extend(self)
end
end
end
end
Version data entries
11 entries across 11 versions & 1 rubygems