Retrospring/db/migrate/20150504004931_create_comme...

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class CreateCommentSmiles < ActiveRecord::Migration[4.2]
def change
create_table :comment_smiles do |t|
t.integer :user_id
t.integer :comment_id
t.timestamps null: false
end
add_index :comment_smiles, :user_id
add_index :comment_smiles, :comment_id
add_index :comment_smiles, [:user_id, :comment_id], unique: true
add_column :users, :comment_smiled_count, :integer, default: 0, null: false
add_column :comments, :smile_count, :integer, default: 0, null: false
end
end