Model userstamp

Rails
1

hey, i have something like this for the user timestamp (created_by and
updated_by), i have seen this on http://delynnberry.com/pages/userstamp/
and Peak Obsession

#adding ‘created_by’ and ‘updated_by’ to all models
module ObjectStatistics
def self.append_features(base)
base.before_create do |model|
model.created_by ||= User.backend_user.id if
model.respond_to?(:created_by)
end
base.before_save do |model|
model.updated_by = User.backend_user.id if
model.respond_to?(:updated_by)
end
end

belongs_to :created_by, :class_name => “User”, :foreign_key =>

“created_by”

belongs_to :updated_by, :class_name => “User”, :foreign_key =>

“updated_by”

end

my usermodel
class User < ActiveRecord::Base
include ObjectStatistics
cattr_accessor :backend_user

def to_s
	return self.login
end

end

my productmodel
class Product < ActiveRecord::Base
include ObjectStatistics
end

in my application controller i have this:

before_filter :set_backend_user
def set_backend_user
User.backend_user = User.find(session[:backend].id) unless
session[:backend].nil?
end

Now this al works! :slight_smile:

But when i do item.created_by => i get “1”
this is the id from the module (User.backend_user.id ), but i want the
login.

Now my question is, how can i implement this below in the module so i
dont need to type it in every model?

belongs_to :created_by, :class_name => “User”, :foreign_key =>
“created_by”
belongs_to :updated_by, :class_name => “User”, :foreign_key =>
“updated_by”

2

I had the same question about how to implement the belongs_to in a more
dry fashion. I din’;t figure it out, os i have that declaration in
most all of my models. Not ideal.

As for displaying the login, you could override the accessor

def self.created_by
self.created_by.login
end

3

module ObjectStatistics
def included(other)
other.send(:belongs_to, :created_by, :class_name => “User”,
:foreign_key =>“created_by”)
other.send(:belongs_to, :updated_by, :class_name => “User”,
:foreign_key =>“updated_by”)
end
…
end

This will call the belongs_to method on the class that the module is
included in. You may need to fiddle with the syntax, can’t test this
at the moment.

Cheers,
Max

4

Hi all,

I am trying to do a functional test on a controller that mixes in a
module
with an expensive method, but I would like to mock out that method for
my
testing purposes. I can’t seem to do it. Here’s what I have tried

def setup
@controller = MyController.new
klass = class << @controller; self; end
klass.send(:undef_method, :something_expensive)
klass.send(:define_method, :something_expensive, lambda {nil})
end

I have also tried to do the less idiomatic but more straightforward
def @controller.something_expensive; nil; end

but that didn’t help, either. The undef_method fails because it can’t
find
the method (I guess becaues it’s actually defined in the module). The
other way just silently fails to accomplish its objective. I’ve googled
some but am somewhat perplexed. Ideas?

this is what the controller looks like

class MyController
include ModuleWithExpensiveMethod
end

module ModuleWithExpensiveMethod
def something_expensive
sleep(100)
end
end

thanks

Yan Pritzker

http://planyp.us

5

I’ve got a plugin which handles this very simply. You just add two
columns
to the table, created_by_id and updated_by_id, then declare:

class Person < ActiveRecord::Base
acts_as_monitored
end

And the fields will be updated accordingly. This is a slightly nicer
solution as it allows you to include the associations with a find.

The plugin assumes the current user can be accessed through
User.current(you can change this if you need).

http://svn.viney.net.nz/things/rails/plugins/acts_as_monitored

-Jonathan.

6

thx it works :wink:

7

Both of these techniques work fine when I try your examples - are you
sure
your example illustrates the problem you are seeing?

A third way is like this…

def setup
@controller = MyController.new
class << @controller
undef something_expensive # not strictly necessary
def something_expensive; end
end
end

But if you are getting into mocking and stubbing, you might like to have
a
look at Mocha at http://mocha.rubyforge.org which can make your life a
bit
easier.

James.