43 lines
1.4 KiB
JavaScript
43 lines
1.4 KiB
JavaScript
const tableName = 'backlinks';
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// because of this issue in Sequelize the foreign key constraint may be named differently depending
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// on when the previous migrations were ran https://github.com/sequelize/sequelize/pull/9890
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const constraintNames = ['backlinks_reverseDocumentId_fkey', 'reverseDocumentId_foreign_idx'];
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module.exports = {
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up: async (queryInterface, Sequelize) => {
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let error;
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for (const constraintName of constraintNames) {
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try {
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await queryInterface.sequelize.query(`alter table "${tableName}" drop constraint "${constraintName}"`)
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await queryInterface.sequelize.query(
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`alter table "${tableName}"
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add constraint "${constraintName}" foreign key("reverseDocumentId") references "documents" ("id")
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on delete cascade`
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);
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return;
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} catch (err) {
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error = err;
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}
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}
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throw error;
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},
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down: async (queryInterface, Sequelize) => {
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let error;
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for (const constraintName of constraintNames) {
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try {
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await queryInterface.sequelize.query(`alter table "${tableName}" drop constraint "${constraintName}"`)
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await queryInterface.sequelize.query(
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`alter table "${tableName}"\
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add constraint "${constraintName}" foreign key("reverseDocumentId") references "documents" ("id")
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on delete no action`
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);
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return;
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} catch (err) {
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error = err;
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}
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}
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throw error;
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},
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}; |