similar to: Validations ignoring :allow_nil => true

I think I must be doing something wrong... when a form returns params to the controller, empty fields appear to be returned as blank, not nil. so what''s the point of an :allow_nil=>true setting on a validation? it fails because blank is not the same as nil. i would expect either returned empty fields to be nil, or :allow_nil to really be :allow_blank. otherwise i have to do a search

Is trhere any way how to support allow empty? Rails prefer empty string than null for database and then validations with allow_nil fails. -- Posted via http://www.ruby-forum.com/.

I have this in a model: class GenreBadge < ActiveRecord::Base belongs_to :game, counter_cache: :genre_badges_count, touch: true belongs_to :genre validates :game_id, uniqueness: {scope: :genre_id}, allow_blank: true end When I get one existing genre badge genre_badge = game.genre_badges.first genre_badge.game_id = nil genre_badge.save! It creates an validation exception:

In the model I have: validates :square_meters_public_land, :barrier_meters, :numericality => { :greater_than_or_equal_to => 0 }, :allow_nil => true but if, in the field, on create, I don''t insert a value I have the error "field is not a number". -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To

Is there a way to use validates_numericality_of and still allow null values? I have a model with some optional values that can be nil, but if they''re present, they must be numbers. Will I need to construct a custom valiation for this, or is there some method built in? Seems like it would be a common enough need. Jeff -- Posted via http://www.ruby-forum.com/.

Don''t know why, but cant seem to get this to work for me. I have a phone number field for an addressbook. In the addressbook model I have a before_update declaration that says the following: I''d like to be able to remove all special characters (just numbers please), but this doesn''t want to work for me. before_update :format_phone def format_phone self.phone =

Dear R-helpers, Has anybody ever tried to compare pls regression outputs from the pls.pcr R-package developped by Wehrens with outputs from the Unscrambler software developped by CAMO company ? I find very different outputs and wonder if this comes from differences between methods/algorithms SIMPLS (pls.pcr) and PLS1 (Unscrambler). Arnaud ************************* Arnaud DOWKIW Department of

Today I found these comments in active record''s callbacks.rb file: # If the returning value of a before_validation callback can be evaluated to false, the process will be aborted and Base#save will return false. # If Base#save! is called it will raise a RecordNotSave error. # Nothing will be appended to the errors object. This caused me a lot of frustration earlier when I was

It appears that if your trying to use validates_inclusion_of for a string value allow_nil wont work. For example, if I have an attribute :year which is stored as a varchar then: validates_inclusion_of :year, :in => "1980"..Time.now.year.to_s, allow_nil=>true will successfully validate the range but will not allow an empty input field to be submitted. However, if :year is

Sorry if I''m just dumbing out, but is there a reason that when using Single Table Inheritance Rails doesn''t really validate the "type" field or provide some mechanism to do so? seems like a good way to corrupt a database. Because the "type" is also a special attribute, I had to resort to an ugly hack like: class ActiveRecord::Base def type_attr

Hi All, Is there a way to filter / modify the output of a model class before it''s returned to controller/view that''s calling it? Example: I have a field phone_number which I always want to preformat using the number_to_phone() helper.... Any help is appriciated. Thanks! -- Posted via http://www.ruby-forum.com/.

Hi, I submitted a patch (for the first time) a couple of days ago (http://dev.rubyonrails.org/ticket/5091 - the decsription is included below). I''ve noticed some posts to rails-core notifying the world of patches, since there''s been no activity on said patch I thought I''d do the same. Please let me know if this breaks protocol. Cheers, Ian White --- patch summary

Hi all My visitors can create party organisator profiles, and I want assign them as the creators (the field creator_id in the organisators table references a member in the members table). To do that I tried it with before_validation: def before_validation creator = Member.find 1 end Sadly, this does not work. The validation validates_presence_of :creator_id Still tells me, that

Hi, I was looking around a bit and couldn''t find any callbacks that executed before before_validation The current problem with using before_validation is that it won''t fire if I''m not using validations with #save(:validate => false) - which makes sense. Before_save won''t suffice because I want these callbacks to fire before validation on the occasions that

I''ve been working with the problem that Joe Hosteny has been talking about on this list and on the tickets he''s posted (http://dev.rubyonrails.com/ticket/1196) and have come up with a tentative solution that I''d like to bring up here. What if we use a "conditional" parameter in the validates_* methods? Here''s how it would look like in practice:

Hi, I seem to have a key colour problem with a lattice barchart. The colours on my key rectangle don't match the colours on the barchart. Here is my data frame: "LandFill" "Ruminants" "United States (USA)" 7777.21428 5528.16 "France" 200.527083 1299.87 "Australia" 185.878368 2448.17 "Russian Federation" 1752.8334 2024.29

Hi, I am trying to validate a numeric value passed in from a form, which is saved in a MySQL db as decimal(9,2) Now problem is I need to ensure people don''t enter a form value like -. 003. In my validations, I have a validates_numericality_of check being done. Furthermore, in validate method, I have a check using an if statement such as : ((an_object[n].nil? or an_object[n] < 0) and

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi all, A few months ago someone posted a message about specifying validates_* constraints on a per-attribute basis. I just created a small plugin that allows you to do this. Here''s an example from one of my models: class Country < ActiveRecord::Base attribute :name, :string do |a| a.validates_length :within =>

I''m using Rails 2.0.2 and I have been trying to take advantage of the "validates_numericality_of" with the ":greater_than" option with something like this: validates_numericality_of :users, :greater_than => 0, :only_integer => true, :allow_nil => true, :message => "The number of allowed users must be a whole number greater than zero." But this

Buildings have units. Units have rooms. Rooms have people. I can grab building, room, and people IDs and store them in a session[:variable]. However, when creating a new unit, I need to give that session[:building_id] to ActiveRecord for creation. I''m not sure whether to use hidden fields or do it all in the model ''before_validation'' - in either case I