lass Product < ActiveRecord::Base
I don't know if this typo is just here and occured when you copied your
source code, or you have 'lass Product' in your model. If second, that may
be reason for error
понедельник, 18 марта 2013 г., 11:46:48 UTC+4 пользователь Ruby-Forum.com
User написал:
>
> Hey.
>
> After adding the item, an error undefined method `key?' for nil:NilClass
>
> its my controller products:
>
> ...
> # GET /products/new
> # GET /products/new.json
> def new
> @product = Product.new
>
> respond_to do |format|
> format.html # new.html.erb
> format.json { render json: @product }
> end
> end
> ...
>
> model product:
>
> lass Product < ActiveRecord::Base
> has_many :line_items
> before_destroy : ensure_not_referenced_by_any_line_item
>
> attr_accessible :title, :description, :image_url, :price
>
> validates :title, :description, :image_url, :price, presence: true
> validates :price, numericality: {greater_than_or_equal_to: 0.01}
> validates :title, uniqueness: true
> # validates :image_url, allow_blank: true, format: {
> # with: %r{ \.(gif|jpg|png)$}i,
> #message: 'gif, jpg png. '
> #}
>
> def ensure_not_referenced_by_any_line_item
> if line_items.empty?
> return true
> else
> errors.add(:base, " существуют товарные позиции")
> return false
> end
>
> end
>
> class CreateProducts < ActiveRecord::Migration
> def change
> create_table :products do |t|
> t.string :title
> t.text :description
> t.string :image_url
> t.decimal :price
>
> t.timestamps
> end
> end
> end
>
> How solve this problem?
>
> --
> Posted via http://www.ruby-forum.com/.
--
You received this message because you are subscribed to the Google Groups "Ruby
on Rails: Talk" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msg/rubyonrails-talk/-/TF6bS_oD7tYJ.
For more options, visit https://groups.google.com/groups/opt_out.
