I am trying to set up a validation in a model to ensure that a record
can''t be saved unless the foreign key it belongs_to is a valid record.
My model says:
class Admin < ActiveRecord::Base
validates_presence_of :user_id
validates_numericality_of :user_id
validates_uniqueness_of :user_id
validates_associated :user
belongs_to :user
end
but I can still create an admin record even if the associated user
record doesn''t exist. I tried creating a custom validator, too, but I
couldn''t test User.find(@user_id) from within the model.
How can I check for this at the model level?
--
"Oh, look: rocks!"
-- Doctor Who, "Destiny of the Daleks"
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Did you look at validates_associated http://api.rubyonrails.org/classes/ActiveRecord/Validations/ClassMethods.html#M002171 Darian Shimy -- http://www.darianshimy.com http://twitter.com/dshimy On Fri, Nov 20, 2009 at 6:33 AM, Todd A. Jacobs <tjacobs-sndr-b4faac-S/bPM5e9wgfNLxjTenLetw@public.gmane.org> wrote:> I am trying to set up a validation in a model to ensure that a record > can''t be saved unless the foreign key it belongs_to is a valid record. > My model says: > > class Admin < ActiveRecord::Base > validates_presence_of :user_id > validates_numericality_of :user_id > validates_uniqueness_of :user_id > validates_associated :user > > belongs_to :user > > end > > but I can still create an admin record even if the associated user > record doesn''t exist. I tried creating a custom validator, too, but I > couldn''t test User.find(@user_id) from within the model. > > How can I check for this at the model level? > > -- > "Oh, look: rocks!" > -- Doctor Who, "Destiny of the Daleks" > > -- > > You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. > To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org > To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe@googlegroups.com. > For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=. > > >-- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=.
On Fri, Nov 20, 2009 at 09:51:27AM -0800, Darian Shimy wrote:> Did you look at validates_associatedYes, didn''t you see it included in the original post? Of course, that doesn''t mean it''s being used correctly, or that the bug isn''t somewhere else. Even when calling save!, all I get is a terse message saying that the user can''t be validated. Is there a way to force the test to be more verbose when evaluating validations, especially those which take place in other models? I''m at a bit of a loss to understand why a simple ''validates_associated :user'' doesn''t work, but I''ll bet a more detailed trace would shine a light on it. -- "Oh, look: rocks!" -- Doctor Who, "Destiny of the Daleks" -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=.
On Nov 20, 9:59 pm, "Todd A. Jacobs" <tjacobs-sndr- b4f...-S/bPM5e9wgfNLxjTenLetw@public.gmane.org> wrote:> On Fri, Nov 20, 2009 at 09:51:27AM -0800, Darian Shimy wrote: > > Did you look at validates_associated > Is there a way to force the test to be more verbose when evaluating > validations, especially those which take place in other models? I''m at a > bit of a loss to understand why a simple ''validates_associated :user'' > doesn''t work, but I''ll bet a more detailed trace would shine a light on > it. >Well as the docs say, "This validation will not fail if the association hasn‘t been assigned". validates_presence_of :user should do the truck (but if you want a cast iron guarantee, use a foreign key constraint) Fred> -- > "Oh, look: rocks!" > -- Doctor Who, "Destiny of the Daleks"-- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=.