```ruby
class AddForeignKeys < ActiveRecord::Migration
  def change
    add_foreign_key :tags, :articles_tags
    add_foreign_key :contents, :articles_tags
    add_foreign_key :text_filters, :contents
    add_foreign_key :users, :contents
    add_foreign_key :contents, :feedback
    add_foreign_key :text_filters, :feedback
    add_foreign_key :users, :feedback
    add_foreign_key :contents, :pings
    add_foreign_key :contents, :redirections
    add_foreign_key :redirects, :redirections
    add_foreign_key :contents, :resources
    add_foreign_key :profiles, :users
    add_foreign_key :resources, :users
    add_foreign_key :text_filters, :users
 end
end
```

Change the migration completely, so it's right.
user
```ruby
class AddForeignKeys < ActiveRecord::Migration
  def change
    add_foreign_key :articles_tags, :tags
    add_foreign_key :articles_tags, :contents, column: :article_id
    add_foreign_key :contents, :text_filters
    add_foreign_key :contents, :users
    add_foreign_key :feedback, :contents, column: :article_id
    add_foreign_key :feedback, :text_filters
    add_foreign_key :feedback, :users
    add_foreign_key :pings, :contents, column: :article_id
    add_foreign_key :redirections, :contents
    add_foreign_key :redirections, :redirects
    add_foreign_key :resources, :contents, column: :article_id
    add_foreign_key :users, :profiles
    add_foreign_key :users, :resources
 end
end
```
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