Question

I am getting a “NoMethodError in ProjectsController#create” with the following code:

def create
  @project = current_user.project.build(params[:project])
  if @project.save
    flash[:success] = "Project created!"
    redirect_to root_url
  end
end

I have tried using @project = current_user.project.create(params[:project]) as well, but I get the same error, albeit for .create.

My Project model looks like this:

class Project < ActiveRecord::Base
  attr_accessible :title,
                  :sub_title,
                  :desc,
                  :category

  validates :user_id, presence: true
  validates :title, presence: true, length: { maximum: 35 }
  validates :category, presence: true

  belongs_to  :user
  ...
end

and my User model looks like this:

class User < ActiveRecord::Base
  attr_accessible :name,
                  :surname,
                  :email,
                  :email_confirmation,
                  :password,
                  :password_confirmation

  has_secure_password

  has_one :project
  ...
end

From what I can tell, this should create a new Project with an association to the user.id and project.user_id. Any ideas why I get the error instead of successful creation?

Answer 1

For has_one associations you want:

@project = current_user.build_project(params[:project])

The same pattern is used for create:

@project = current_user.create_project(params[:project])

If you look at the has_one documentation they list the methods that get created when you declare the association.