13 lines
322 B
Ruby
13 lines
322 B
Ruby
class CreateUserGroups < ActiveRecord::Migration[8.1]
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def change
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create_table :user_groups do |t|
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t.references :user, null: false, foreign_key: true
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t.references :group, null: false, foreign_key: true
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t.timestamps
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end
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add_index :user_groups, [:user_id, :group_id], unique: true
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end
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end
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