similar to: Table Inheritance based on a function

Hey guys, I just implemented very simple and primitive class table inheritance in ActiveRecord. The goal is for this to become mature enough to become a true feature in Rails. Check it out here: http://guest@blog.raylucke.com/svn/inherits_from Here?s how it looks in action: create_table "books", :force => true do |t| t.column "product_id", :integer t.column

I have the following model structure setup. class User < ActiveRecord::Base end class Parent < User has_many :relationships has_many :children, :class_name => "Student", :through => :relationships, :conditions => "related_as = ''parent''" end class Student < User has_many :relationships

Is class table inheritance possible with MySQL and Rails? I saw John Wilger''s cool yet complicated Postgres implementation. I have looked for a solution, but I can not find one. Are there any plans for class table inheritance for Rails in the future? --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups

I search an plugin or gem, but don''t find nothing satisfactory. I believe to be stranger a technology that nails the DRY, have that create you vary equal tables, instead of using inheritance. Exists an soluction for this? I want a solution similar to this: create_table :people |t| do t.column :name t.column :address end create_table :customer |t| do t.column :person_id

My goal is simple: calcuate GC content of each sequence in a list of nucleotide sequences. I have figured out how to vectorize, but all my attempts at memoization failed. Can you show me how to properly memoize my function? There is a StackOverflow post on the subject of memoization, but it does not help me: http://stackoverflow.com/questions/7262485/options-for-caching-memoization-hashing-in-r

I have two models Club and users. users are regular authenticated users and some of them might create a club. A club can also have members (essentially users) and there are attributes and models that apply to member but not to users. Here is what I have right now. Club => belongs_to :user User => has_many clubs (since a user can host multiple clubs). Now how do I fit this member model

I hardly know anything about the format used in (non-compressed) serialization/RDS, but hoping someone with more knowledge could give me some feedback; Consider two R processes running in parallel on the same unknown file system. Both of them write and read to the same RDS file foo.rds (without compression) at random times using saveRDS(object, file="foo.rds", compress=FALSE) and

What is it in Rails 2.3.2? ActiveRecord::Base.pluralize_table_names = false -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ 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 rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe

Yes, more dependencies.rb fun! As far as I''m able to ascertain, these errors started appearing after upgrading from Rails 2.3.1 to 2.3.2 and persist in 2.3.3. They''re highly nonderministic and appear rather sporadically, which makes it extremely frustrating. Multiple developers on our team have experienced this problem across varying versions of Ruby/Rails. They''re

Hi all, I am working on a project, in this I am assigned a task, this task consist of recording a live earning cast call when administrator press single button for that event. The Earning cast call are basically conference calls which happen at the company premises. How can I implement this recording functionality in ROR, Please help me Thanks, Shri -- You received this message because you

I'd like to be able to change some default settings only in the case when checking a package with 'R CMD check'. More precisely, I'd like to execute a piece of R code before the Rd examples and/or test scripts are evaluated by 'R CMD check'. Is there a mechanism in 'R CMD check' that makes this possible? If not, is there a way to detect that you are running via

Anyone ever get an error message such as this? "the change you want was rejected. Maybe you changed something you didn''t have access to."" I haven''t been able to see this in testing, but I''m getting reports out on the field from a few users trying to register to one of my websites. -S -- You received this message because you are subscribed to the

Greetings, I was hoping to get some feedback on a plugin I wrote. The plugin is called conflict_warnings and is currently available from my github repository at http://github.com/EmFi/conflict_warnings The purpose of the plugin is to provide a simple methods of preventing data inconsistencies that could arise from multiple users interacting with the same resource. Under basic operation a

FIXED: Transaction is a reserved word, and it cannot be used even though I put it into its own module. So my guess is Transactions::Transaction still somehow got resolved to the Rails internal Transaction class. Renamed the Transaction (and its subclasses) to Transact and it works fine now. Thanks! -- cmdjohnson On Sat, Jun 9, 2012 at 3:08 AM, Commander Johnson

So i had a boolean attribute in my model which gets interpreted to tinyint(1) in mysql by rails migrations. Now tinyint(1) accepts a range in mysql and i want to change my boolean attribute to an attribute which can accept 3 values(0,1,2). I made the change to the view and when i post the form selecting the selecting the value ''2'', it still gets saved as a ''0''.

Hello, I stumble upon this error when loading a subclass of the Transaction class. For full details, see the pastie: http://pastie.org/4053678 Error message: ActiveRecord::SubclassNotFound: The single-table inheritance mechanism failed to locate the subclass: ''Transactions::DummyDdnlTransaction''. This error is raised because the column ''type'' is reserved for

I know that Rails uses the Single-Table Inheritance as mentioned in the wiki (http://wiki.rubyonrails.com/rails/pages/SingleTableInheritance). I was wondering if there was an easy way of implementing Class Table Inheritance easily (one table per class) as defined in http://www.martinfowler.com/eaaCatalog/classTableInheritance.html. The model that I am used to is Class Table Inheritance, and

I just filed bug 7872 about non-scalability of the LSR analysis algorithms. It may be related to bug 6727. The fundamental problem appears to be re-running SCEV analyses such as properlyDominates and SCEVComplexityCompare over and over again on large SCEV expressions. Memoizing results for SCEVComplexityCompare appears to help significantly but that is much harder to do with things like

Hi ruby community, It has been months after much experimenting RubyOnRail but it wasn''t chosen for my Enterprise project. Recently, I heard some of my friends argue that RubyOnRail is Enterprise-class framework which perform much better than PHP. IMHO, I think Play! 2.0 (Scala) can offer more than just a framework and high-performance. What are your thought on these comparison? -- You

Hi Timo my tests resulted in inheritance is given if a userfolder has set some acl to its new created subfolder , which is nice if some userfolder has its acl from global acl there is no inheritance to its new created subfolders, that subfolders will always created with full owner rights i am not really sure if its a good idea to have inheritance from global acl and if its hackabel what is your