Automatically userstamps create and update operations if the table has columns named created_by and/or updated_by. The Blamer gem attempts to mirror the simplicity of ActiveRecord's timestamp module.
Blamer expects User.current_user
to return the current user object. Basic setup involves assigning to User.current_user
in a controller before filter:
class User < ActiveRecord::Base
cattr_accessor :current_user
end
class ApplicationController < ActionController::Base
before_filter :set_userstamp
def set_userstamp
User.current_user = User.find(session[:user_id])
end
end
If you don't want to use User.current_user
you can override this behavior by writing your own userstamp_object
method in ActiveRecord::Base or any of your models. For example, to use Person.current
instead:
def userstamp_object
Person.current
end
If you don't like created_by/updated_by you can customize the column names:
# Globally in environment.rb
ActiveRecord::Base.created_userstamp_column = :creator_id
ActiveRecord::Base.updated_userstamp_column = :updator_id
# In a model definition
class Subscription
self.created_userstamp_column = :creator_id
self.updated_userstamp_column = :updater_id
end
Automatic userstamping can be turned off globally by setting:
ActiveRecord::Base.record_userstamps = false
Blamer adds a userstamps
migration helper which will add the created_by and updated_by columns (or your custom column names) to your table:
create_table :widgets do |t|
t.string :name
t.timestamps
t.userstamps
end
If you need thread safety make sure that your implementation of User.current_user
(or your custom user object) is thread safe. Here's one way this can be accomplished:
class User < ActiveRecord::Base
def self.current_user
Thread.current[:current_user]
end
def self.current_user=(user)
Thread.current[:current_user] = user
end
end
You must use the correct version of blamer for the version of Rails you are running:
Add to your Gemfile
gem 'blamer', '~> 4.0.0'
Or
gem 'blamer', github: 'infused/blamer'
Add to your Gemfile
gem 'blamer', '~> 3.0.0'
Or
gem 'blamer', :github => 'infused/blamer', :branch => '3_stable'
Add a line to your environment.rb
config.gem 'blamer', '~> 3.0.0'
Thanks to DeLynn Berry [email protected] for writing the original Userstamp plugin (http://github.com/delynn/userstamp/), which was the inspiration for this plugin.
Copyright (c) 2008-2017 Keith Morrison <[email protected]>
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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