1,,,,rails g migration add_user_id_to_group
2,,,,在migrate里面
def change
add_column :groups, :user_id, :integer
end
1,,,,rails g migration add_user_id_to_group
2,,,,在migrate里面
def change
add_column :groups, :user_id, :integer
end
1,,,,rails g migration add_user_id_to_group 2,,,,在migrate...
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本文标题：新增user_id到group的table里面
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