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class PostTagLink < ActiveRecord::Base
belongs_to :post
belongs_to :tag
end
class CreatePostTagLinkTable < ActiveRecord::Migration[6.0]
def change
create_table :post_tag_links do |t|
t.references :post, foreign_key: true, index: true
t.references :tag, foreign_key: true, index: true
end
end
end
class Tag < ActiveRecord::Base
belongs_to :post
validates_presence_of :name
end
class CreateTagTable < ActiveRecord::Migration[6.0]
def change
create_table :tags do |t|
t.string :name, null: false
end
end
end
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