similar to: Using variable class names breaks has_many?

I''ve been reading up in ActiveRecord::Associations and playing around with my app via the console and found some interesting methods via the code completion of IRB, but I have no idea how to use them and can only find one hint in the API http://api.rubyonrails.com/classes/ActiveRecord/Associations/ ClassMethods.html It mentions here in the has many associations that if you use the

Tried to submit a ticket in Trac, but it reported an error... Doing a Model.find_by_id(nil) after creating an object of type Model returns that object -- and the next time, returns nil. It should always return nil. For example, Step 1. Create an object: >> Foo.create(:name => "bar") => #<Foo:0x2aaaac3ade20 @new_record=false,

I started with Ruby on Rails in the 0.13.x period, so I''m sure I missed out on a lot of history. There''s probably some good explanation for something I''ve been wondering about, but I haven''t seen it written down anywhere. Maybe someone can clue me in. I''ve always felt that one of the uglier APIs was the ActiveRecord::find() method. I call

Hi, I have been playing around with Ruby after reading so much about it, and so I started tweaking with auto generated scaffold. But it seems like I must be missing something, can someone else please help me take a look and give me a couple pointers? In short I was trying to make a class User that has a method addupdate with 2 parameters (alias and email) which would either update the

I have a model named User. When running this application from the console I can call User.find_by_id(nil) and it returns nil. When running this application during testing or through WEBrick or Mongrel calling User.find_by_id(nil) returns the newest record in the database. But it only does this the first time you call it with nil. The second time you call User.find_by_id(nil) it returns nil.

I''m playing around with the Postback action recipe listed in the recipes book. Here is the default code given: def edit @recipe = Recipe.find_by_id(params[:id]) || Recipe.new if request.post? @recipe.attributes = params[:recipe] redirect_to :main_url and return if @recipe.save end end Here is what my code sort of ended up looking like, altho i''ve ripped it apart

Hello, I hope somebody can explain to me what''s going on here because I''m baffled! In a controller''s action I want to create a new order for a customer. Because I post back to the same action (not RESTful I know, but that''s for another day) I use code like this: def edit @order = Order.find_by_id(params[:id]) || Order.new ... end I

I want to isolate and spec methods that are shared by controllers, and live in application.rb. Whereas I usually also provide examples in individual controllers that use these methods, not necessarily all the edge cases and I''d like to isolate the examples. This is the approach I''m taking (thanks to bryanl for suggestions and http://pastie.caboo.se/123626). WDYT? This

I have been trying to model a labeled graph using ActiveRecord (trunk version). Basically, I have a ''Node'' model which represents a node linking to other nodes. Links (aka edges) are labeled (i.e., have a ''label'' attribute and other behavior). Thus I decided to model edges as an ''Edge'' model and use a ''has_many :trough''

This has the look of a "just don''t quite get it yet" problem. I am using the ActiveRecord.find_by_id method to identify the parent object (Quiz) to tie to the child object (Question) at create time. Here is the stdout log: 127.0.0.1 - - [31/Mar/2006:22:43:22 CST] "GET /question/new? parent_quiz=ff2d7022-be0a-11da-9f01-00400506faf5 HTTP/1.1" 200 806

I''m using activerecord outside of rails and find_first generates sql that postgresql doesnt'' like. This is rails 1.1.4, with everything up to date via "gem update". This is the command line: ruby -rrubygems seca -c ../etc/seca.cnf cert --export 1 --format pkcs12 --key root.key >root.pfx This is the error: (PGError: ERROR: argument of WHERE must be type

Hi all I''m currently implementing authentication/authorization in my app. Now I''m wondering what''s the common way to handle a guest... In fact, many of the visitors of my app will be anonymous users that just want to read articles etc., but one can register as a member to have some further possibilities. So far one can login as a member and from this point on one has

I''m struggling with a single table type (self) lookup. my ''personnel'' model has a supervisor_id and is_supervisor column. The supervisor''s select list is created by @supv = Personnel.find(:all, :conditions => ["is_supervisor = true"], :order => ''last_name'') in my personnel model, I have the following... def

I have the following associations. class Document < ActiveRecord::Base has_many :document_sections, :dependent => :destroy, :autosave => true has_many :document_items, :through => :document_sections end class DocumentSection < ActiveRecord::Base belongs_to :document has_many :document_items, :dependent => :destroy, :autosave => true end class DocumentItem <

With code like: if @params[:pnumber] =~ /\s*p?(\d+)\s*/ if student = Student.find_first(:conditions => ["pnumber like \":pnumber%\"", {:pnumber => $1}]) @borrower = student elsif emp = Employee.find_first(:condiwions => ["pnumber like \"?\"", {:pnumber => $1}]) @borrower = emp else

Hi, The following controller method taking me into infinite loop. Once the update action completes I want to reload the ''index'' page. May I know why it is going into infinite loop? def update Device.find_by_id( params[:device_id] ).driver = ( params[:driver_id] == 0 ) ? nil : Driver.find_by_id( params[:driver_id] ) redirect_to :action => :index, :tab =>

How do I validate that a model object''s attribute is a valid foreign key? The problem is, I can''t check if the attribute is a valid foreign key if the attribute doesn''t even exist. For example, every employee must be in a department. In the following code, if an employee''s department_id is not present then Department.find_by_id(department_id) might cause

Hi all - I have written an XML-RPC app using action-web-service. Mostly works well. Except I just noticed that my :datetime types are coming back as :date types. That is, when in the console I query the record via Foo.find_by_id(123) I get back actual datetimes. If I then do it via XML-RPC, fetching that same record I get back dates (ie. hour/minute/second are set to 00:00:00) Any ideas?

I am trying to upgrate rails from 3.0 to 3.1, while updating rails version I am getting following error rake aborted! undefined method `sanitize_limit'' for #<ActiveRecord::Relation:0x2aaaad35d720> /some_package/lib/ruby/gems/1.8/gems/activerecord-3.1.12/lib/active_record/relation.rb:460:in `method_missing''

Is find_all_by deprecated and/or find_first_by for 2.0.2? If not, what is actually deprecated? just find_all(..) and find_first()? Thanks for clearing this up. --~--~---------~--~----~------------~-------~--~----~ 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