Problem with HABTM relation

When I try to create some User with the POST below I received the
following
msg:

Completed 404 Not Found in 17005ms (Views: 1.7ms | ActiveRecord: 6.6ms).

I debugged a little and I find this error

Couldn’t find Shared::Category with ID=5 for Shared::User with ID=

I don’t know really what’s going on. I can’t create any user.

Thanks!

------WebKitFormBoundaryZnTz2ebfP2GeXgF8Content-Disposition: form-data;
name=“user[username]”
asdasdasd
------WebKitFormBoundaryZnTz2ebfP2GeXgF8Content-Disposition: form-data;
name=“user[first_name]”
asd------WebKitFormBoundaryZnTz2ebfP2GeXgF8Content-Disposition:
form-data; name=“user[last_name]”
asd------WebKitFormBoundaryZnTz2ebfP2GeXgF8Content-Disposition:
form-data; name=“user[email]”
removed_email_address@domain.invalid------WebKitFormBoundaryZnTz2ebfP2GeXgF8Content-Disposition:
form-data; name="user[birth_date]"Wed Apr 01 2015 00:00:00 GMT-0300
(ART)------WebKitFormBoundaryZnTz2ebfP2GeXgF8Content-Disposition:
form-data;
name="user[brand]"false------WebKitFormBoundaryZnTz2ebfP2GeXgF8Content-Disposition:
form-data;
name="user[influencer]"false------WebKitFormBoundaryZnTz2ebfP2GeXgF8Content-Disposition:
form-data;
name="user[inspirational]"false------WebKitFormBoundaryZnTz2ebfP2GeXgF8Content-Disposition:
form-data; name=“user[gender]”
male------WebKitFormBoundaryZnTz2ebfP2GeXgF8Content-Disposition:
form-data; name=“user[avatar]”; filename="ic_launcher.png"Content-Type:
image/png------WebKitFormBoundaryZnTz2ebfP2GeXgF8Content-Disposition:
form-data;
name="user[categories_attributes][0][id]"5------WebKitFormBoundaryZnTz2ebfP2GeXgF8Content-Disposition:
form-data; name=“user[categories_attributes][0][name]”
facebook------WebKitFormBoundaryZnTz2ebfP2GeXgF8Content-Disposition:
form-data; name=“user[categories_attributes][0][avatar]”
http://localhost:3000/uploads/shared/category/avatar/5/big_facebook.png.webp------WebKitFormBoundaryZnTz2ebfP2GeXgF8Content-Disposition:
form-data;
name="user[categories_attributes][1][id]"7------WebKitFormBoundaryZnTz2ebfP2GeXgF8Content-Disposition:
form-data; name=“user[categories_attributes][1][name]”
tobuycat------WebKitFormBoundaryZnTz2ebfP2GeXgF8Content-Disposition:
form-data; name=“user[categories_attributes][1][avatar]”
http://localhost:3000/uploads/shared/category/avatar/7/big_ic_launcher.png.webp------WebKitFormBoundaryZnTz2ebfP2GeXgF8Content-Disposition:
form-data;
name="user[password]"123123------WebKitFormBoundaryZnTz2ebfP2GeXgF8Content-Disposition:
form-data;
name="user[password_confirmation]"123123------WebKitFormBoundaryZnTz2ebfP2GeXgF8–

Clases (in shared module)

class User < ActiveRecord::Base
has_and_belongs_to_many :categories, class_name: ‘Shared::Category’,
join_table: “categories_users”
accepts_nested_attributes_for :categories
class Category < ActiveRecord::Base
self.table_name = :categories

has_and_belongs_to_many :users, class_name: 'Shared::User', 

join_table: “categories_users”
accepts_nested_attributes_for :users

Controller:

def create
user = Shared::User.new(user_params)
user.created_by = staff_from_token
location = user.save ? v1_private_user_url(user) : nil
respond_with(user, location: location, serializer:
Private::UserSerializer)end

Serializers

module Shared
class CategorySerializer < ActiveModel::Serializer
attributes :name, :id, :avatar, :avatar_thumb
def avatar_thumb
Rails.env.test? ? object.avatar.url : object.avatar.thumb_webp.url
end
def users
object.users.order(name: :asc)
end
def avatar
Rails.env.test? ? object.avatar.url : object.avatar.big_webp.url
end
endend

module Shared
class UserSerializer < ActiveModel::Serializer
attributes :first_name, :last_name, :email, :gender, :username,
:inspirational,
:location, :brand, :influencer, :birth_date, :avatar,
:avatar_thumb, :id,
:facebook_uid, :categories
def avatar_thumb
Rails.env.test? ? object.avatar.url : object.avatar.thumb_webp.url
end
def avatar
Rails.env.test? ? object.avatar.url : object.avatar.big_webp.url
end
def categories
object.categories.map do |category|
CategorySerializer.new(category)
end
end
endend

On Friday, May 8, 2015 at 2:03:17 PM UTC+1, Daniel Goldberg wrote:

I don’t know really what’s going on. I can’t create any user.

Is there a category with ID 5? The parameters your form is submitting
imply
that there should be an already existing category with that id that is
already associated with this user (which if the user is not new) is not
possible. This is probably down to how you are building your form and
what
you are trying to do (in particular do you want a form that creates
users &
associated categories in one go or one that creates a user and
associates a
number of pre-existing categories with the user?)

Fred