similar to: An Association Problem: AR::Base.find{:include} and n-deep association traversal

Railers: Greetings from the low end of the learning curve. I have installed all the prerequisites on Win32, including a lite MySQL database with a table in it called Inventory. Then I run this command line... ruby script/generate ajax_scaffold Inventory ...and I get this error message: error Before updating scaffolding from new DB schema, try creating a table for your model

Hi there, I have this model called InventoryItem. Every time an InventoryItem is created (through the CharactersController and the create_item action) I need to update others tables and make lookups in other tables, to check if the Character has the prerequisites to actually create the InventoryItem. My problem is that I cannot seem to find a good place to put this logic. I''ve tried to

I''m tinkering around with an old legacy table in SQL Server 2000. Ruby 1.8.4, most recent ADO.rb file from RubyForge, Rails 1.0 Here''s the model: class InventoryItem < ActiveRecord::Base set_table_name "[_SMDBA_].[_INVENTOR_]" set_primary_key "sequence" end Everything works fine. I can retrieve records without issue. However, when create a new

Environment: Apache/2.2.8 (Ubuntu) DAV/2 SVN/1.4.6 PHP/5.2.4-2ubuntu5.1 with Suhosin-Patch mod_ruby/1.2.6 Ruby/1.8.6(2007-09-24) mod_ssl/2.2.8 OpenSSL/0.9.8g Phusion_Passenger/2.0.1 Server I''ve created several scaffolds that all work, and am trying to set the root page for this app to default to one of the methods. Here''s my routes.rb: ActionController::Routing::Routes.draw do

Hi Friends , Got a unique requirement .I am designing a invoice printing system .So right now I have the NEW page for adding the invoice details to the table .Now I have the requirement of adding Invoice Items In the same form .I have added multiple text boxes to enter the values of the Items using <%= text_field ''invoiceitems[]'', ''item_price''

Hi, I wanna make a invoice system. I''ve set up a invoice model and a invoice_item model (invoice has_many invoice_item and invoice_item belongs_to invoice). Also invoice belongs_to a customer, and a customer has_many invoice. My problem is i don''t know how to create the form for making a new invoice. I''ve made a similar system in php, and here is how the html form was:

I suspect that this is going to wind up trivial and I''m going to slap myself in the head... Suppose I have User and Comment AR classes. User has_many :comments, Comment belongs_to :user I want to do a User.find, which returns User objects in order of which user has the most comments. I suspect that this involves renaming the COUNT(*) results of a sub-select so that I can order by

Hi, Haven''t been able to find this raised before but I''m sure it must have been. When assigning an object to a belongs_to association I would like it to call the *association*_id= method instead of directly updating the attributes array. This is because I want to modify the behaviour when assigning a particular object without writing separate methods for whether it''s

I seem to be getting some behaviour thats unexpected (for me anyway) when using find_by_contents on an ActiveRecord has_many association. The results that are returned are only the records that belong to the model returned, but the total_hits that are being returned appear to be for the whole table. e.g. class Book < AR::Base has_many :pages end class Page < AR::Base belongs_to :book

I am assuming this an appropriate place to discuss this, but if it isn''t my apologies- just let me know. Just a Rails 4-ish thing. Am attempting to pull AMS (active_model_serializers), strong_parameters, and the "permitter" strategy that Adam Hawkins is using: http://broadcastingadam.com/2012/07/parameter_authorization_in_rails_apis/ Code so far is here (in the

My Rails site has a fair amount of login and ''ownership'' logic. For instance, we have a number of clients (companies), each of which has several accounts. A client owns a number of different types of resources, and shouldn''t see any other clients'' resources, so, for example, our ScenesController contains a lot of references to

I''ve added a method to the mock class that makes it pretty easy to stub associations in rails. I''ve been using it for awhile and it seems to cut down on a lot of setup code for the controller and model specs that use associations. #before @person = mock_model(Person) posts = mock(''post_proxy'') posts.stub!(:build).and_return(mock_model(Post, :save => true))

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This could be a lot simpler than I think and I''m just missing something obvious! I''m working on a creative collaboration app whereby one user could submit a Story and this can then be forked by another user and worked on seperately. To acheive this I have a has_many association within the same Story model as such: class Story < ActiveRecord::Base has_many

So I want to SELECT from multiple tables, so as to be able to do "SELECT FROM foo, bar WHERE foo.id=bar.id AND bar.baz=23". How do I do it with AR#find? Also, I need this for associations. has_many et. al. have :finder_sql, which is nice, but feels like a Pyrrhic: it''s basically doing the association in pure SQL, defeating the purpose of AR. -- -Alder

When I do a to_xml(with a block) on an association of a model I got a Builder::XmlMarkup#to_ary should return Array Example that does not work. @intervenant = Intervenant.find(params[:id]) output = @intervenant.to_xml( :skip_types => false, :dasherize => false) do |xml| @intervenant.individu.to_xml( :builder => xml, :skip_instruct => true, :skip_types => false,

Hey! I have three tables in my DB users <--> users_courses <--> courses users and courses are m:n related: User: has_many :courses, :through => :user_courses Course has_many :users, :through => :user_courses I want to delete all records for a user in user_courses when deleting the user. How do i achieve that? thx -- Posted via http://www.ruby-forum.com/.

Alright, so, I am trying to run a shimeji on my Mac. Shimeji's are these cute little animated characters that walk around your screen. I made a prefix that contains all the files required for the shimeji and when I try to run it I get these sorts of errors. I have no idea what is going on! I am not fluent in computer at all. Help please. ): [Image:

Hi all, I'm trying to load a csv file in which all the variables must be of type number.The object is a dataframe.When i load the file what i get is a dataframe in wich the variables are of type factor.How can I get variables of type number??? Thanks all

Dear R users, Suppose the csv file contains header names such as *"Nike, dunk"*, *"Converse, All stars"* etc When imported to R (with header = T option), the column names are given by: *"Nike..dunk"* *"Converse..All.stars"* I have tried the following command to convert these column names to the original names as in the input source.