Rails: create on has_one association

user_463920 0
Viewed 63727

Hi (huge Rails newbie here), I have the following models:

class Shop < ActiveRecord::Base
  belongs_to :user
  validates_uniqueness_of :title, :user_id, :message => "is already being used"
end

and

class User < ActiveRecord::Base
  has_one :shop, :dependent => :destroy
end

When I'm about to create a new shop, I get the following error:

private method `create' called for nil:NilClass

This is my controller:

@user = current_user
@shop = @user.shop.create(params[:shop])

I've tried different variations by reading guides and tutorials here and there, but I'm more confused than before and can't get it to work. Any help would be greatly appreciated.

ruby-on-rails
4 Answers

A more concise way to do this is with:

@user.create_shop(params[:shop])

See methods added by has_one in the Ruby on Rails guides.

user_9920400

Just to add to above answers - 

@user.create_shop(params[:shop])

Above syntax creates new record but it subsequently deletes similar existing record.

Alternatively, if you do not want to trigger delete callback 

Shop.create(user_id: user.id, title: 'Some unique title')

This thread might be helpful. Click here

user_47962630
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