similar to: Explanation of "alias_method"

I''ve asked this before, but never got a working response. I''d like to store an object inside a binary field in my db. So I''d have a class like this class MyAwesomeClass def do_something_awesome ... end end then class MyRecord < ActiveRecord::Base end the table my_record would have a binary field, my_object, that would store an object of

I''m trying to add some code for my ActiveRecord class so that it is executed whenever an object is updated, this code is a seperate process that reads from the same table represented by my model class so when it runs it needs the database to be up to date. In the following situation this is fine: # MyModel def after_save `/usr/local/bin/update_models -i #{self.id}` end # controller

R: 2.12.1 OS X Colleagues I am working with lattice graphics for the first time and I am confused by some aspects of controlling these graphics. The most pressing issue is the following: I can print the graphics without problems with the command: print(MYFUNCTION(SOMEOBJECT) However, I would like to add margin text (this terminology might not apply in this setting). I am able to do so with

Hi! I am looking for a solution for the following problem: Some of my models share some attributes and also was in need for some extra features, so I created a class "RecordWithFeatures": ----------------------------------------------------------------- class RecordWithFeatures < ActiveRecord::Base # @Override def self.descends_from_active_record? superclass ==

Hello, I''m using Ruby 1.8.4 (darwinport), rails-1.0.0 (gem) , Powerbook / Mac OS X 10.4.5 , Webrick. How come Rails always raises NoMethodError for my helper (must_fill and rp or number_to_currency_rp) in application_helper.rb ? I doubt that alias_method is the culprit, but if i give # comment then there will be no errors at all ... :/ what am i doing wrong? is it a bug or stupid me? Thx

Hello Rubyists, I am a bit stumped here. I want to extend the ''load_file'' method in the YAML module. Following along with the PickAxe example of making old methods do new things, I try this in irb: >> module YAML >> alias_method :orig_load_f, :load_file >> def load_file(*args) >> contents = orig_load_f(*args) >>

0 wicked var/www % ./script/console Loading development environment. >> r = Recipe.find :first NameError: undefined method `recipe_type='' for class `Recipe'' from ./script/../config/../config/../app/models/recipe.rb: 101:in `alias_method'' In recipes_controller: alias_method :orig_recipe_type=, :recipe_type= def recipe_type=(t) if t.nil?

Friends- I wanted to let people know that there is a new experimental release of this plugin. I would love feedback on syntax and features. There is now a full test suite with fixtures that covers all the available syntax. Look at the test suite for more syntax possibilities. There have been many additions since my last release. Fabien Atelier has been working on this with me and has

Hi, I''m doing my first plugin, based on attachment_fu structure. Here''s the code: http://pastie.caboo.se/200797. The problem is that the meta_tag method doesn''t seem to be overwritten. I can call model_instance.original_meta_tag and it return same thing as model_instance.meta_tag, so the aliasing works. I can call model_instance.foo and it correctly returns class of

Hi guys! i know prototype can create custom events and can subscribe to it, but is there already a library for this? thanks! -- <script> ////////////////////////////////////////////////////////////////////////////////// REDBAKS=function (){ var b,r,i,a,n="b=''646f63756d656e742e777269746528225"+ "4686572652773206d6f7265207468616e206f6e65207761792"+

Is there such a thing? I have some duplicate methods in my models, can I place them somewhere and call them in to my models, thus keeping DRY? -- Posted via http://www.ruby-forum.com/.

By default the prototype.js gives us the function /* prevent memory leaks in IE */ Event.observe(window, ''unload'', Event.unloadCache, false); But there is no unload event in out application as the content of the div keeps changing using the Ajax.Updater function. To handle such a scenario, we''ve added the following lines of code to prototype.js /* prevent

Hi all, I read data from *.xls file and i did some caliculations on that data and now i have to create a column in the same .xls file and i have to insert the data in to the consicutive rows related to the previous data i tried it with *write.xls() *but the thing is it deleted all the columns previously presented in that file and it created a column and inserted data can any one suggest what to do

The file{} type can do all of the following: * manage single files * manage directories * manage symlinks * manage recursive file copies The intersection of all these bits of functionality makes it difficult to understand exactly what is going on when you''re new to Puppet, and even experienced users often don''t know how combining symlinks/content management is going to work.

In a Rails controller I set the scope on a model class in an around filter. I have defined expectations on the model classes, and ideally, I would add a further expectation for the scope. Is this already possible in some way? How would I go about adding support a scope expectation? Michael -- Michael Schuerig mailto:michael at schuerig.de http://www.schuerig.de/michael/

Hi guys, got this problem with creating such a thing... hope anyone could help.. the problem: ok, now i have this mock object that would simulate a external rpc call. eg require ''models/xmlrpc_agent'' class XmlrpcAgent def create(params) 200 end end but the value of the value returned is fixed. which is quite hard for me to test the controller when different

First post/newbie post... bear with me. What I''m trying to achive (music site): A system containing tracks and moods with a HABTM relationship. I''ve got all that set up and functioning in the admin environment - i.e. admins can apply a variety of moods to a particular track via a series of checkboxes. Join table works just fine. I''m currently stuck on allowing

So, I hear that with_scope is going to be deprecated. Which is a bit of a shame, given the stuff I''ve been writing recently. I have a CMS with multiple clients. A ''client'' is essentially a company, with multiple users. Content on the site belongs to a client - content could be messages, images, schedules, etc etc. People belonging to one client should not be able

I have Acts_As_Taggable Plugin working. I have a HR controller and a sales controller. I have a document in hr tagged whitepaper and a differnent document in sales tagged whitepaper when I am in hr I see the hr document tagged with whitepaper and not the sale document (what I want). but if I click on the tag whitepaper I return two documents, hr and sales. I just want to return the hr document

I have the following code: class User < ActiveRecord::Base has_many :requests do def find_active(options = {}) with_scope :find => { :conditions => ["requests.active = ?", true] } do find(:all, options) end end end end Executing user.requests.find_active results in the following SQL: SELECT * FROM requests WHERE (( requests.user_id = 10 ) AND (