similar to: Combine custom validations with helpers

Does anyone how to create a validation that: validates_presence_of :a OR :b I.e. :a OR :b must be present. I thought this would probably be possible with some kind of validation callback, e.g.: def check_a_or_b_is_set return (a or b) end Any ideas? Thanks, Rob -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hi I have an application where people can upload avatar-like images to the site. When I show the images I want to show a placeholder image if no image has been uploaded for that user. I was thinking of overloading the image_tag helper to check for existance and provide :default => "path/to/default/image" for the image to show in case the primary one does not exist. So my questions

I simply can''t figure this out. I have been reading and re-reading Agile book and wiki.rubyonrails.org - all sorts of validation methods and still, it doesn''t work. Controller code def create @client = Client.new(params[:client]) if @client.save! flash[:notice] = ''Client was successfully created.'' redirect_to :action =>

Hi, in the past few months someone posted an entry on their blog about how to do validations in non-AR classes and I cant find it any more. Anyone have a link? Thanks, Trevor -- Trevor Squires http://somethinglearned.com

I''ve got a user object which has quite a few attributes mapped to the database. As of right now I''ve got some validations in the model like: validates_presence_of :password, :message => "You must specify a valid password." validates_confirmation_of :password, :message => "Password doesn''t match the confirmation." validates_presence_of

Hey All, I have a form that submits data to multiple models. I have class Man < ActiveRecord::Base has_many :notes has_many :contacts validates_associated :contacts, :notes validates_presence_of :first_name validates_presence_of :last_name class Contact < ActiveRecord::Base belongs_to :man validates_presence_of :contact_info class Note < ActiveRecord::Base

Hi, Is there a way of validating input inside the controller? or an equivalent to ActiveRecord::Validations::ClassMethods.validates_presence_of ? Cheers, -- Colin

Hi all, I have a unique workflow where it''s making the use of validations difficult. My app is for internal use in my company and I have a funky implementation (inspired by the e-commerce Railscasts episodes) of a cart. I have products which when I "add to cart" creates an order with a state of "incomplete". The product is a line item of my order. Hope that makes

Hi, I''m writing my own FormBuilder and I wanted to put an asterisk or something next to any required fields. The Builder has access to the AR object, is there any method I can call on the AR object that will tell me whether or not a particular field is required? Failing that, can I access the complete list of validations so I can look through it for instances of

hi, i have a model with 2 validations on a field example: validates_presence_of :email validates_length_of :email, :within => 6..100 #r@a.wk validates_uniqueness_of :email validates_format_of :email, :with => Authentication.email_regex if i do the submit of form for a new object of the model with a blank mail i receive 4 errors. In this case i want receive

Hello all. I''ve got the following in my model: class Individual < ActiveRecord::Base validates_presence_of :first_name, :last_name, :street, :city, :state, :zip validates_acceptance_of :AZ_resident, :message => "You must be an Arizona resident." end The AZ_resident field is present and defined as boolean (PostgreSQL 8.1), but validation will not occur.

I can''t seem to figure out how to get child validation error messages to display. I''m going through the simple blog example DHH uses in his video. In the example, a comment belongs_to a post. Validating posts works fine and the errors are displayed as they should be. When I try to validate a comment using: validates_presence_of :summary It does the proper validation by not

I have the following validation on and ''Order'' model: validates_presence_of :order_lines, :message => ''missing one or more products.'', :on => :save Ok, great. An order has to have products. Ok. Problem is, there are some old orders that don''t have lines (don''t ask) and in the admin tool we need to be able to work on these orders.

If I have belongs_to :user Do I need to have validates_presence_of :user_id ? Does Rails validate the presence of :user_id automatically if I have belongs_to :user? In other words, does Rails prevent against creating orphan records that belong to non-existent users? Thanks. -- Posted via http://www.ruby-forum.com/.

I''m having a problem with my User model. Originally I had alot of validation, including this: validates_presence_of :password_confirmation, :password validates_length_of :password, :within => 4..50 validates_confirmation_of :password However, this made it impossible to edit a user without setting his password, which I don''t want. So I tried to isolate the above validations

Hi all, I am a RoR newbie and have the following scenario set up: There are 2 ActiveRecords involved, the first one being "User", the second one being "Visibility". The corresponding users table holds address informations regarding a User. The visibilities table holds visibility settings for the individual columns of the users table (i.e. firstname, lastname, country

A lot has been posted about validation issues with associations, however, I don''t see this issue addressed specifically. ex: class Foo has_one :schedule, :dependent => :destroy validates_presence_of :schedule class Schedule belongs_to :foo validates_presence_of :foo_id this creates a circular dependency that breaks test frameworks like pickle and machinist. At first I was

I have a single table that two people enter data into. Person A creates the record and I need to specify certain required fields in his form. Person B has a separate form and she fills in additional fields and I need to specify that some of these are required. Since the data is all in one table and since the validations are in the model, won''t Rails complain when person A tries to

My model is very simple, it''s mostly just a join table that represents which tournaments a user has registered for. class Registration < ActiveRecord::Base belongs_to :user belongs_to :tournament validates_presence_of :user_id, :tournament_id validates_uniqueness_of :user_id, :scope => :tournament_id end the validates_uniqueness checks to make sure there''s no

I have a User model with an email attribute. I''m using the following validations: validates_confirmation_of :email validates_format_of :email, :with => RFC822::EmailAddress, :message => "must be a valid address in the form user@domain.com" validates_uniqueness_of :email, :message => "address has already been taken. If you''ve forgotten your