similar to: error_messages_for does not display the error

Rails has many built in validation methods to ensure that an ActiveRecord instance cannot be created or updated under certain situations (typically caused by invalid data). However, I can find no methods to govern whether an ActiveRecord instance can be destroyed. Essentially, I wish an error to be raised when a user tries to delete an ActiveRecord without first adhering to a certain set of

Hey, probably an easy question but, I''m trying to get a method to run "before_destory" for a model, and I want the method to throw an error, and not delete the object from the database, if a certain condition is held Obviously, I can just raise an error and rescue it... but for some reason I can''t get <% error_messages_for ''model" %> to catch

Hi All, I''m trying to prevent users from deleting a folder that has contents like this: class Folder < ActiveRecord::Base has_many :myfiles has_many :folders belongs_to :folder validates_uniqueness_of :name, :scope => "folder_id" before_destroy :dont_destroy_folder_with_contents def dont_destroy_folder_with_contents if Folder.find(id) != nil ||

Hello, I''m trying to intercept delete call in my model but before_destroy callback is never called... Somebody knows why ? Thanks The controller : def delete Image.delete(params[:id]) redirect_to :action => "list" end The model : class Image < ActiveRecord::Base set_table_name "publish_images" belongs_to :article before_destroy :on_destroy

Greetings, I''m in the throws of deploying an app on site5, and I''m getting strange errors. I think I might need to understand how error_messages_for works. I get a pretty standard looking error: " You have a nil object when you didn''t expect it! You might have expected an instance of ActiveRecord::Base. The error occured while evaluating nil.errors Extracted

I am trying to put some smarts around a call to <%= error_messages_for %> so that when I first come into this page i.e. when my instance variable @target_list has not been defined yet, the page doesn''t break. I''m doing this: <% if @target_list? %> <%= error_messages_for ''target_list'' %> <% end %> I get a syntax error on line 1.

If I wanted to override the error_messages_for method where within the rails structure would I put it? Which file? Thanks :-) John Kopanas http://www.kopanas.com ===================================================================== http://www.soen.info - source of the freshest software engineering information on the net http://cusec.soen.info - software engineering conference

I am having trouble getting error_messages_for to work. My controller(relevant parts) looks like def configure @account = session[:account] @user = User.new end def add_new_user_to_account @user = User.new(params[:user]) if @user.valid? session[:account].users << @user end redirect_to :action=> ''configure'' end end and my

Hi I''m trying to spec a call to error_messages_for to avoid stubbing out whole models. Something like this: context "A rendered calculate_quote view" do setup do @form = mock("form") assigns[:form] = @form end specify "should render the error messages" do <SOMETHING>.should_receive(:error_messages_for).with

Hi, I have this save routine: def customer_address_create customer_options @customer = Customer.find(params[:id]) @customer.addresses.create(params[:address]) @saved = @customer.save end That passes to a rjs template like this: if @saved page.visual_effect :Fold, ''add_address'' page.replace_html ''addresses'', :partial =>

I have the following code and I am not able to get it working. The error message is not coming on the top, it is just getting displayed on a different page if I dont have the rescue block commented at the bottom. Model: user.rb require "digest/sha1" class User < ActiveRecord::Base validates_presence_of :eaddress, :fname, :passwd, :pcode, :country, :day, :year, :month, :gender,

Hi, I can''t list error_messages in my Form ??, and all the formfields are reset ...(I think my redirect :back clean everything, formfield and error_messages ...), only my flash[:notice] is ok.... I would like to use the "error_messages_for" tag to add a simple red * on my textfiled if a problem occurs ... thanks for help arnaud here are the basics steps to check that

How would I set up a model stub so that <%= error_messages_for ''some_model'' %> doesn''t complain? I started going down this road: @some_model.stub! (:errors).and_return(ActiveRecord::Errors.new) but it seems like a long, hopefully uneccessary road. Cheers, Michael

Hi, I wonder why error_messages_for take strings as params instead of instance variables. error_messages_for ''user'' instead of error_messages_for @user ''user'' is translated into @user eventually. If so, who not take the instance variables directly? Is there any reason for that? Thanks in advance. Sam -- Posted via http://www.ruby-forum.com/.

I have a tree of models that represent a book. Looks like this: book sections documents paragraphs index entries glossary entries footnotes index entries glossary entries These are all models with has_many from parent and the child has belongs_to. They also all have dependent => :destroy

I am trying so learn how to do custom validations. The validation works as expected, but I can''t get "error_messages_for" to display. How is the name of the object supposed to be formated? Where is this object created, the model or controller? What am I doing wrong here? #### Model ######################## class MyFolder < ActiveRecord::Base def validate # validation

What''s the best way to validate_on_destroy. Rails only seems to include validate_on_create and validate_on_update methods. I don''t want to resort to doing: before_destroy do |j| raise "There is an error" if j.etc end Is there a way of finding out what action (create/update/destroy) is being performed if I use the ''validate'' method? -- Posted via

I''m having a problem, ''cause I wrote the following line in my model "Hi": [code] validates_numericality_of :phone, :only_integer => true, :allow_blank => false, :message => "must be a number" [/code] And in my "new" view, I put: [code] <%= error_messages_for :oi, :header_message => "Erro ao cadastrar

I can''t seem to figure out how to validate a few fields some1 please help me out model--------- class Record < ActiveRecord::Base validates_presence_of :sw, :flex end controller------------ class RecordController < A;;icationController def new @record = Rrecord.new @product = Product.find(params[''product_id'']) end def create

how can i access to a collection that was created in the same control and the data that a want to access isn?t the id the collection has : id, usuario, comandancia comandancia is the data to access the question is how to access comandancia in @acceso this code is wrong : def new @catelemento = Catelemento.new @acceso= Catacceso.find(:all, :conditions