Hi,
I''m currently building an app that has these models:
class Project < ActiveRecord::Base
has_many :collabs
has_many :users, :through => :collabs
end
class User < ActiveRecord::Base
has_many :collabs
has_many :projects, :through => :collabs
end
# collabs is the "join" model only...
class Invitation < ActiveRecord::Base
belongs_to :project
end
Then in my UsersController#new I check if there is an invitation code,
if so then I pass a hidden field to the form with the invitation code
so when the user is saved it''s added to the project which was invited
to. I have this on my user model like this:
class User < ActiveRecord::Base
...
attr_accessor :invitation_token
after_create :add_to_project_by_invitation, :if => lambda { |u| !
u.invitation_token.blank? }
def add_to_project_by_invitation
invitation = Invitation.find_by_token(invitation_token)
projects << invitation.project if invitation &&
!projects.include?
(invitation.project)
end
end
When I invite a user to the project 1 and he tries to signup with the
invitation token, then this error raises:
Mysql::Error: Duplicate entry ''1-3'' for key 2: INSERT INTO
`collabs`
(`created_at`, `project_id`, `updated_at`, `admin`, `user_id`) VALUES
(''2009-01-11 04:15:13'', 1, ''2009-01-11
04:15:13'', 0, 3)
BUT!, when I just change the after_create callback in my User model to
before_create it goes all sweetie...
I''m using Rails 2.2.2
Could this be a bug?... The full stack is here: http://pastie.org/357749
Regards.
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Out of curiosity, where is the has_many :projects line in user.rb relative to the after_save? At first glance, I would guess that the has_many comes later, which is could cause this problem - add_to_project_if_invitation is adding a record to projects, which the code generated by add_multiple_associated_save_callbacks (in association.rb) is trying to save again. --Matt Jones On Jan 10, 2009, at 11:24 PM, edgarjs wrote:> > Hi, > > I''m currently building an app that has these models: > > class Project < ActiveRecord::Base > has_many :collabs > has_many :users, :through => :collabs > end > > class User < ActiveRecord::Base > has_many :collabs > has_many :projects, :through => :collabs > end > > # collabs is the "join" model only... > > class Invitation < ActiveRecord::Base > belongs_to :project > end > > Then in my UsersController#new I check if there is an invitation code, > if so then I pass a hidden field to the form with the invitation code > so when the user is saved it''s added to the project which was invited > to. I have this on my user model like this: > > class User < ActiveRecord::Base > ... > attr_accessor :invitation_token > after_create :add_to_project_by_invitation, :if => lambda { |u| ! > u.invitation_token.blank? } > > def add_to_project_by_invitation > invitation = Invitation.find_by_token(invitation_token) > projects << invitation.project if invitation && !projects.include? > (invitation.project) > end > end > > When I invite a user to the project 1 and he tries to signup with the > invitation token, then this error raises: > > Mysql::Error: Duplicate entry ''1-3'' for key 2: INSERT INTO `collabs` > (`created_at`, `project_id`, `updated_at`, `admin`, `user_id`) VALUES > (''2009-01-11 04:15:13'', 1, ''2009-01-11 04:15:13'', 0, 3) > > > BUT!, when I just change the after_create callback in my User model to > before_create it goes all sweetie... > > > I''m using Rails 2.2.2 > Could this be a bug?... The full stack is here: http://pastie.org/357749 > > Regards. > >--~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Core" group. To post to this group, send email to rubyonrails-core@googlegroups.com To unsubscribe from this group, send email to rubyonrails-core+unsubscribe@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-core?hl=en -~----------~----~----~----~------~----~------~--~---
Oh, I see... Yes, you are right. The relationshiop was later than the callback. If I move it upper then it works all good. Ok, thank you very much for the answer :) On Jan 11, 2:35 am, Matt Jones <al2o...@gmail.com> wrote:> Out of curiosity, where is the has_many :projects line in user.rb > relative to the after_save? > At first glance, I would guess that the has_many comes later, which is > could cause this problem - > add_to_project_if_invitation is adding a record to projects, which the > code generated by > add_multiple_associated_save_callbacks (in association.rb) is trying > to save again. > > --Matt Jones > > On Jan 10, 2009, at 11:24 PM, edgarjs wrote: > > > > > Hi, > > > I''m currently building an app that has these models: > > > class Project < ActiveRecord::Base > > has_many :collabs > > has_many :users, :through => :collabs > > end > > > class User < ActiveRecord::Base > > has_many :collabs > > has_many :projects, :through => :collabs > > end > > > # collabs is the "join" model only... > > > class Invitation < ActiveRecord::Base > > belongs_to :project > > end > > > Then in my UsersController#new I check if there is an invitation code, > > if so then I pass a hidden field to the form with the invitation code > > so when the user is saved it''s added to the project which was invited > > to. I have this on my user model like this: > > > class User < ActiveRecord::Base > > ... > > attr_accessor :invitation_token > > after_create :add_to_project_by_invitation, :if => lambda { |u| ! > > u.invitation_token.blank? } > > > def add_to_project_by_invitation > > invitation = Invitation.find_by_token(invitation_token) > > projects << invitation.project if invitation && !projects.include? > > (invitation.project) > > end > > end > > > When I invite a user to the project 1 and he tries to signup with the > > invitation token, then this error raises: > > > Mysql::Error: Duplicate entry ''1-3'' for key 2: INSERT INTO `collabs` > > (`created_at`, `project_id`, `updated_at`, `admin`, `user_id`) VALUES > > (''2009-01-11 04:15:13'', 1, ''2009-01-11 04:15:13'', 0, 3) > > > BUT!, when I just change the after_create callback in my User model to > > before_create it goes all sweetie... > > > I''m using Rails 2.2.2 > > Could this be a bug?... The full stack is here:http://pastie.org/357749 > > > Regards.--~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Core" group. To post to this group, send email to rubyonrails-core@googlegroups.com To unsubscribe from this group, send email to rubyonrails-core+unsubscribe@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-core?hl=en -~----------~----~----~----~------~----~------~--~---