railties/lib/rails/generators/active_model.rb
# frozen_string_literal: true
module Rails
module Generators
# ActiveModel is a class to be implemented by each ORM to allow \Rails to
# generate customized controller code.
#
# The API has the same methods as ActiveRecord, but each method returns a
# string that matches the ORM API.
#
# For example:
#
# ActiveRecord::Generators::ActiveModel.find(Foo, "params[:id]")
# # => "Foo.find(params[:id])"
#
# DataMapper::Generators::ActiveModel.find(Foo, "params[:id]")
# # => "Foo.get(params[:id])"
#
# On initialization, the ActiveModel accepts the instance name that will
# receive the calls:
#
# builder = ActiveRecord::Generators::ActiveModel.new "@foo"
# builder.save # => "@foo.save"
#
# The only exception in ActiveModel for ActiveRecord is the use of self.build
# instead of self.new.
#
class ActiveModel
attr_reader :name
def initialize(name)
@name = name
end
# Used for:
#
# * GET +index+
def self.all(klass)
"#{klass}.all"
end
# Used for:
#
# * GET +show+
# * GET +edit+
# * PATCH / PUT +update+
# * DELETE +destroy+
def self.find(klass, params = nil)
"#{klass}.find(#{params})"
end
# Used for:
#
# * GET +new+
# * POST +create+
def self.build(klass, params = nil)
if params
"#{klass}.new(#{params})"
else
"#{klass}.new"
end
end
# Used for:
#
# * POST +create+
def save
"#{name}.save"
end
# Used for:
#
# * PATCH / PUT +update+
def update(params = nil)
"#{name}.update(#{params})"
end
# Used for:
#
# * POST +create+
# * PATCH / PUT +update+
def errors
"#{name}.errors"
end
# Used for:
#
# * DELETE +destroy+
def destroy
"#{name}.destroy!"
end
end
end
end