Question

Hopefully someone can help me on this one, it’s absolutely driving me crazy!

Basically, I have created an Authentication system on my app, using Devise and CanCan, which works fine. The problem arises when I try to assign a Role to a User on signup, the Users Role does not save, the sign-up is successful, but the User has no assigned Role. In my Console the Users Role comes up as nil!

I’ve set up a HABTM association between Users and Roles, and tried various options. Rails Console returns User Role:nil even if I input the role as a String in the sign-up form.

I am new to Rails and programming in general, would really appreciate some assistance people! Many Thanks in

User Model:

class User < ActiveRecord::Base
has_and_belongs_to_many :roles



# Include default devise modules. Others available are:
# :token_authenticatable, :encryptable, :confirmable, :lockable, :timeoutable and :omniauthable
devise :database_authenticatable, :registerable,
     :recoverable, :rememberable, :trackable, :validatable

# Setup accessible (or protected) attributes for your model
attr_accessible :email, :username, :password, :password_confirmation, :remember_me, :role_ids

def role?(role)
  return !!self.roles.find_by_name(role.to_s.camelize)
end

end 

Snippet from New Registration View:

<fieldset> 
<legend>Sign Up</legend>

<div class="inputs">
<%= f.input :username, :required => true, :autofocus => true %>
<%= f.input :email, :required => false, :autofocus => true %>
<%= f.input :password %>
<%= f.input :password_confirmation, :label => "Confirm Password" %>
</div>

<div>
<%= f.input :roles, :required => true, :collection => Role.find(:all).collect {|c| [ c.name, c.id ]}, :label => "Role" %>
</div>

Params

Processing by Devise::RegistrationsController#create

as HTML Parameters: {“commit”=>”Sign
up”,
“authenticity_token”=>”1HCmfOVATkz/LbALboU+Z2Bg/lBQseVNB2NeAG7GPHc=”,
“utf8″=>”✓”,
“user”=>{“password_confirmation”=>”[FILTERED]”,
“username”=>”test”, “role_ids”=>[“2”],
“password”=>”[FILTERED]”,
“email”=>”[e-mail]”}}

[1m[35mRole Load (0.1ms)[0m SELECT
“roles”.* FROM “roles” WHERE
“roles”.”id” = 2 LIMIT 1 [1m[36mSQL
(0.1ms)[0m [1mSELECT 1 FROM “users”
WHERE (“users”.”email” =
‘[e-mail]’) LIMIT 1[0m
[1m[35mAREL (0.3ms)[0m INSERT INTO
“users” (“reset_password_token”,
“role”, “email”,
“remember_created_at”,
“current_sign_in_ip”,
“encrypted_password”, “updated_at”,
“created_at”, “sign_in_count”,
“username”, “last_sign_in_at”,
“reset_password_sent_at”,
“last_sign_in_ip”,
“current_sign_in_at”) VALUES (NULL,
NULL, ‘[e-mail]’, NULL, NULL,
‘$2a$10$8J6F2NgkK6Tas0AVMiocUujimZ7K3XcYFSmWGeYUzmGDN55WVUHxO’,
‘2011-07-10 23:30:45.820893’,
‘2011-07-10 23:30:45.820893’, 0,
‘test’, NULL, NULL, NULL, NULL)
[1m[36mSQL (0.1ms)[0m [1mINSERT INTO
“roles_users” (“role_id”, “user_id”)
VALUES (2, 33)[0m [1m[35mAREL
(0.1ms)[0m UPDATE “users” SET
“current_sign_in_ip” = ‘127.0.0.1’,
“updated_at” = ‘2011-07-10
23:30:45.827053’, “sign_in_count” = 1,
“last_sign_in_at” = ‘2011-07-10
23:30:45.826761’, “last_sign_in_ip” =
‘127.0.0.1’, “current_sign_in_at” =
‘2011-07-10 23:30:45.826761’ WHERE
“users”.”id” = 33

Redirected to
http://localhost:3000/ Completed 302
Found in 163ms

Answer 1

After many investigations, this question raised another question but no real here.