28 lines
1.1 KiB
Ruby
28 lines
1.1 KiB
Ruby
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class CreateUserActivities < ActiveRecord::Migration[4.2]
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# Set this constant to true if this migration requires downtime.
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DOWNTIME = true
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# When a migration requires downtime you **must** uncomment the following
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# constant and define a short and easy to understand explanation as to why the
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# migration requires downtime.
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DOWNTIME_REASON = 'Adding foreign key'.freeze
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# When using the methods "add_concurrent_index" or "add_column_with_default"
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# you must disable the use of transactions as these methods can not run in an
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# existing transaction. When using "add_concurrent_index" make sure that this
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# method is the _only_ method called in the migration, any other changes
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# should go in a separate migration. This ensures that upon failure _only_ the
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# index creation fails and can be retried or reverted easily.
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#
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# To disable transactions uncomment the following line and remove these
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# comments:
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# disable_ddl_transaction!
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def change
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create_table :user_activities do |t|
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t.belongs_to :user, index: { unique: true }, foreign_key: { on_delete: :cascade }
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t.datetime :last_activity_at, null: false
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end
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end
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end
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