similar to: Execute code when an inheritance happens, or disabling STI

Hello, I''ve got a problem with the inheritance as soon as I try to use it in a model. I''ve got plenty of items which can share a lot of code, so I created a class "Item", which inherits from ActiveRecord::Base, but because it''s not a "real item" but an interface, I set it abstract (writing abstract_class? method). Then I have all the differents

Hi! I got a class named EinsatzFilter which I serialized to session. Before saving to session it works afterwards I keep getting the message: "undefined method `to_s'' for #<Person:0x38c6ab8>". "Person" is a from ActiveRecord::Base inherited class. Code: class EinsatzFilter include ApplicationHelper attr_reader :personen, :monat, :projekte, :kunde

Hi I would like to write my first application with Active Record: this is my database table: id PRIMAREY KEY auto_increment german_name varchar(50) english_name varchar(50) | wingspan this is my code: ======================= #!/usr/local/bin/ruby -w require ''rubygems'' require_gem ''activerecord'', ">= 1.10.1"

Is there a way to set the base class to abstract? or otherwise enforce that no one can create a "Pet"? Pet < ActiveRecord Dog < Pet Pig < Pet I''ve tried: class Pet < ActiveRecord::Base validates_presence_of :type end but I get an error about ../vendor/rails/activerecord/lib/active_record/validations.rb:74: warning: Object#type is deprecated; use Object#class

Hi, Does anyone know much about abstract_class? Does it actually prevent instances of the class from being created? Does it disable certain methods? I already know what it''s for, but I want to know what setting self.abstract_class=true actually does. The reason I ask is that I want to use it for a slightly unorthodox purpose. I want a class who''s only attributes are its

I started using robotcoop''s CachedModel class in my project but have encountered problems when using it with the acts_as_ferret plugin. It seems it doesn''t index everything in my STI model, also if I do a search from my base STI class I get a result count but no results. If I run the same search from one of the children STI models I get the appropriate results (if the information

As my database and application grows, I''m starting to run into a large number of models and naming conflicts. I found out that I can switch big_complex_named_model.rb to module/simple_model.rb which changes BigComplexNamedModel to Module::SimpleModel which cleans things up quite a bit. However, if I run: ''Module::SimpleModel''.tableize I get

Can acts_as_ferret search only one of the inherit models in the hierarchy of STI models? Say you have Contents, with types articles and comments. I know that you do Contents.find_by_contents, but can you also create indexed for Comment and Articles? Thanks for you help Miguel -- Posted via http://www.ruby-forum.com/.

Hey all, I have two models in my rails project that share a lot of traits. They each have the same 4 properties, and now I need to add 2-3 methods to each one that will be the same. In the spirit of DRY I am looking for a solution to write these methods only once. Both of these models already inherit from ActiveRecord . . . and I didn''t know if it was safe to just "whip up" a

It looks like cached-model is broken again under rails 1.1. Can anyone confirm? Note that the exception below indicates it''s trying to treat CachedModel as the class name of the model, rather than using the proper class name (which is Entry in this case, and the table called entries). This is a model using Single Table Inheritance and acts_as_tree, and worked just fine under 1.0 and

So, RoR is better at grammer than I. Well so is my nine year old. If I have a table named "people_type" will Rails see this as singular because of the _type or will it consider it the plural of "person_type" ? Is there a link to Rails that lists what words it knows, or what words not to use in table design etc. Kindest regards. -- Posted via http://www.ruby-forum.com/.

Hi All, I am new to this list and to rails. So far I am loving the way in which it is easy to put together web pages with a database backend. I would love to use the rails functionality (to do the sql queries) and then process the results using some very cpu intensuve tasks. The results will take far longer than it is viable to use a web browser to view the results. I would like to see the

I am trying to create a null object in my application. I would like to assigned a null user object for anonymous/ mot-logged-in user, i.e. if session variable has nil data. In my User model, I have created a subclass like this: class UnassignedUser < User def save false end def update false end def username "Unassigned" end def county_id

Hi, I was trying to create an abstract class and a subclass which inherit that abstract class. However, seems like I cannot instantiate the subclass too. Below is my code: //abstractclass2.rb class Abstractclass2 < ActiveRecord::Base self.abstract_class = true end //subclass.rb class Subclass < Abstractclass2 end When I test drive it in rails console, I got the following error:

Hello, i have a problem with autoloading model classes. I have had similar problems before when a file''s name in Rails'' opinion did not match with the name of the class defined inside, but eventually everything worked, so i didn''t look into details. This time the problem comes from running Unit Tests and does not want to go away. I have a model class KnownIP defined in

First of all, sorry for the crossposting, but I put this into the Ruby Forum first of all, but was pointed to this as a more appropriate location. I''m using ActiveRecord and ActiveSupport in a non-rails environment to connect to multiple databases, and I''ve found the following (single database) to cause me an error. Note that params is my database settings and omitted for

Hello, I need to access an mirrored database with one read and one write cluster. Is there a way to tell a model to use two connections? So that all updates etc go to the write database and all read from the read one? This is a fixed set up I can not use MySQL 5.x stuff and additionally i get a token on write, which can be checked on read (and wait for replication) if new data is needed. I

I have to objects with common functionalities and a lot of difference. So I want that each have his own table but inherit the common functionalities from a parent class. How can I do this in Rails ? -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to

In my app, for three models: foo,bar and baz, the database connection is made to a different database and hence in model code: class Foo < ActiveRecord::Base establish_connection :diff_database end class Bar < ActiveRecord::Base establish_connection :diff_database end class Baz < ActiveRecord::Base establish_connection :diff_database end Now, the problem is, if is use the above

Dear all Please see the following module, In module SX3 SX4 and SX5 have similar class Tasklist, but inherit from different class. I will use the following code to connect to different data sources RemoteSX3Model.establish_connection sx3_hash RemoteSX4Model.establish_connection sx4_hash RemoteSX5Model.establish_connection sx5_hash How can I refactor my code in module to look simpler? Thank you