36 lines
1.1 KiB
Ruby
36 lines
1.1 KiB
Ruby
# See http://doc.gitlab.com/ce/development/migration_style_guide.html
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# for more information on how to write migrations for GitLab.
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class CorrectProtectedTagsForeignKeys < ActiveRecord::Migration[4.2]
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include Gitlab::Database::MigrationHelpers
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# Set this constant to true if this migration requires downtime.
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DOWNTIME = false
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disable_ddl_transaction!
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def up
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remove_foreign_key_without_error(:protected_tag_create_access_levels,
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column: :protected_tag_id)
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execute <<-EOF
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DELETE FROM protected_tag_create_access_levels
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WHERE NOT EXISTS (
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SELECT true
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FROM protected_tags
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WHERE protected_tag_create_access_levels.protected_tag_id = protected_tags.id
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)
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AND protected_tag_id IS NOT NULL
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EOF
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add_concurrent_foreign_key(:protected_tag_create_access_levels,
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:protected_tags,
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column: :protected_tag_id)
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end
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def down
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# Previously there was a foreign key without a CASCADING DELETE, so we'll
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# just leave the foreign key in place.
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end
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end
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