similar to: :dependent => :destroy

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 ||

Hi all, I have a question about this method in my User model: # Returns true for the (saved) user called "admin" def is_the_administrator true if save and name == "admin" end The method returns true if the user''s name is admin. However, I only want to return true if the state of the object is "saved", so I call the save method first. I''m

Hi All, I wonder how I can get rails to update just one field when I do Myfile.save. Right now this happens when I do a Myfile.save: UPDATE myfiles SET `folder_id` = 0, `filesize` = 1, `data` = ''2f7573722f6c6f63616c2f6d ... f7061636b65743d33324d'', `user_id` = 0, `date_modified` = ''2006-01-11T23:33:57+0100'', `filename` = ''mysqlscripts.sql''

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 have a model class like so: class Candidate < ActiveRecord::Base validates_presence_of :name @@index = FerretConfig::INDEX def self.after_destroy puts "Ferret: after_destroy called" @@index.query_delete("+id:#{self.id} +ferret_class:#{self.class.name}") optimize_index end end But when I delete a record, the after_destroy is never called.

Hello everyone, I''m using multi-search to search in some attributes of two classes. One of the attributes is the id of the customer. For each multi_search I want to do a give the id of the current customer as a parameter. This should only return results for the given customer. My current code looks like this: Folder.multi_search(@search_query, [Myfile]) I noticed in the API you can

I have an Order model with a ''status'' column. What I want to be able to do is validate that the status of the Order is not completed before it is allowed to be deleted. I tried the following method in my Model, but it appears that this only works for an :update or :create on the record. Anyone know how to do this, and if it should be in the model or the controller?

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

Hi there, How is it possible to get access to an ApplicationController property from a view? Consider this (simplified) situation: class ApplicationController < ActionController::Base def folder_id @folder_id = params[:id] return @folder_id end end class FolderController < ApplicationController def show @folder = Folder.find_by_id(folder_id) end end So far,

I am now trying to get rcov to work for me, without much success. I stole the rake task code from the cucumber site: desc "Run all features" task :features => "features:all" task :features => ''db:test:prepare'' require ''cucumber/rake/task'' #I have to add this -mischa namespace :features do Cucumber::Rake::Task.new(:all) do |t|

A client of mine has a ton of data stored in Excel spreadsheets. I''m building a web application for her (backed by a real db of course) and want to import all that data. Is there a library available to read data from Excel? Is there an easy way to upload the spreadsheets and then read the data? Thanks, Ken Kousen -- Kenneth A. Kousen, Ph.D. President Kousen IT, Inc.

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

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

e.g. class Asset < ActiveRecord::Base validates_presence_of :asset_number, :make, :model, :location, :name, :serial_number validates_numericality_of :asset_number validates_uniqueness_of :asset_number belongs_to :user belongs_to :location belongs_to :asset_type, :foreign_key => ''type_id'' end class Location < ActiveRecord::Base validates_presence_of :name

Hi! There''s something I don''t understand yet about static/private methods. I hope someone can explain... E.g.: class SayHello def hello(who) puts "Hello, " + who + "!" end def self.say(words) puts words end end hello = SayHello.new hello.hello "World" : Hello World! hello.say "hi" : Error SayHello.say

How would I stop the last user being deleted. The following code doesn''t work. before_destroy :dont_destroy_last_user # Don''t delete user if it the last one def dont_destroy_last_User raise "Can''t destroy last user" if User.length < 1 end -- Posted via http://www.ruby-forum.com/.

Observers will be no more as of Rails 4, farewell, never been much of a fan. However, I''m using it in one of my gems which enables model attributes for use with a WYSIWYM editor. The resulting markup is persisted, but in order to use it in a view, it has to be nokogiried in a helper which fragment caches the result. This cache has to be zapped once the model instance is either

In my rails application,there are two models:post and catalog. One post has a catalog,and one catalog has many posts. When I delete a catalog,the posts belongs to the catalog will not be shown normal,for it''s catalog is no existed. Now I want to create(if the ''Defalut catalog'' is not existed) a ''Defalut catalog'' in catalogs table,and make the

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

Hi folks, I''m a newbie in the Ruby land, The Ruby language and RoR looks really great but I think in my situation there is a problem, we are an ISV that sells web application and we don''t want our clients see our source code, I searched the web but couldn''t find any way to compile and\or obfuscate ruby code (in web (RoR)), is there such tool available for the language?