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45 lines
1.7 KiB
45 lines
1.7 KiB
// Copyright 2016 clair authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package migrations
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import "github.com/remind101/migrate"
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func init() {
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RegisterMigration(migrate.Migration{
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ID: 8,
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Up: migrate.Queries([]string{
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// set on deletion, remove the corresponding rows in database
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`CREATE TABLE IF NOT EXISTS Layer_Namespace(
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id SERIAL PRIMARY KEY,
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layer_id INT REFERENCES Layer(id) ON DELETE CASCADE,
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namespace_id INT REFERENCES Namespace(id) ON DELETE CASCADE,
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unique(layer_id, namespace_id)
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);`,
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`CREATE INDEX ON Layer_Namespace (namespace_id);`,
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`CREATE INDEX ON Layer_Namespace (layer_id);`,
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// move the namespace_id to the table
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`INSERT INTO Layer_Namespace (layer_id, namespace_id) SELECT id, namespace_id FROM Layer;`,
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// alter the Layer table to remove the column
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`ALTER TABLE IF EXISTS Layer DROP namespace_id;`,
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}),
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Down: migrate.Queries([]string{
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`ALTER TABLE IF EXISTS Layer ADD namespace_id INT NULL REFERENCES Namespace;`,
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`CREATE INDEX ON Layer (namespace_id);`,
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`UPDATE IF EXISTS Layer SET namespace_id = (SELECT lns.namespace_id FROM Layer_Namespace lns WHERE Layer.id = lns.layer_id LIMIT 1);`,
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`DROP TABLE IF EXISTS Layer_Namespace;`,
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}),
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})
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}
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