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| 1 | +/* eslint-disable @typescript-eslint/naming-convention */ |
| 2 | +import { DataType } from "sequelize-typescript"; |
| 3 | +import { Migration } from "../umzug"; |
| 4 | + |
| 5 | +const USER_TABLE = "users"; |
| 6 | +const APPLICANT_RECORDS_TABLE = "applicant_records"; |
| 7 | + |
| 8 | +const POSITION_TABLE = "positions"; |
| 9 | + |
| 10 | +const POSITION_DATA = [ |
| 11 | + { title: "Project Lead", department: "Engineering" }, |
| 12 | + { title: "Developer", department: "Engineering" }, |
| 13 | + { title: "VP Engineering", department: "Engineering" }, |
| 14 | + { title: "Designer", department: "Design" }, |
| 15 | + { title: "VP Design", department: "Design" }, |
| 16 | + { title: "Product Manager", department: "Product" }, |
| 17 | + { title: "VP Product", department: "Product" }, |
| 18 | + { title: "President", department: "Community" }, |
| 19 | + { title: "VP Scoping", department: "Community" }, |
| 20 | + { title: "VP Talent", department: "Community" }, |
| 21 | + { title: "VP Finance", department: "Community" }, |
| 22 | + { title: "Director Lead", department: "Community" }, |
| 23 | + { title: "Internal Director", department: "Community" }, |
| 24 | + { title: "External Director", department: "Community" }, |
| 25 | + { title: "Content Strategist", department: "Community" }, |
| 26 | + { title: "Graphic Designer", department: "Community" }, |
| 27 | +]; |
| 28 | + |
| 29 | +const POSITION_TITLES = [ |
| 30 | + "Project Lead", |
| 31 | + "Developer", |
| 32 | + "VP Engineering", |
| 33 | + "Designer", |
| 34 | + "VP Design", |
| 35 | + "Product Manager", |
| 36 | + "VP Product", |
| 37 | + "President", |
| 38 | + "VP Scoping", |
| 39 | + "VP Talent", |
| 40 | + "VP Finance", |
| 41 | + "Director Lead", |
| 42 | + "Internal Director", |
| 43 | + "External Director", |
| 44 | + "Content Strategist", |
| 45 | + "Graphic Designer", |
| 46 | +]; |
| 47 | + |
| 48 | +const DEPARTMENT_TITLES = ["Engineering", "Design", "Product", "Community"]; |
| 49 | + |
| 50 | +const position = "position"; |
| 51 | +const enum_positions_title = "enum_positions_title"; |
| 52 | +const enum_applicant_records_position = "enum_applicant_records_position"; |
| 53 | +const enum_positions_department = "enum_positions_department"; |
| 54 | + |
| 55 | +export const up: Migration = async ({ context: sequelize }) => { |
| 56 | + // Drop FK constraints referencing positions |
| 57 | + await sequelize.getQueryInterface().sequelize.query(` |
| 58 | + ALTER TABLE "${USER_TABLE}" DROP CONSTRAINT IF EXISTS "${USER_TABLE}_${position}_fkey"; |
| 59 | + ALTER TABLE "${APPLICANT_RECORDS_TABLE}" DROP CONSTRAINT IF EXISTS "${APPLICANT_RECORDS_TABLE}_${position}_fkey"; |
| 60 | + `); |
| 61 | + |
| 62 | + // Drop the enum-based positions table |
| 63 | + await sequelize.getQueryInterface().dropTable(POSITION_TABLE); |
| 64 | + |
| 65 | + // Recreate positions table with string columns |
| 66 | + await sequelize.getQueryInterface().createTable(POSITION_TABLE, { |
| 67 | + title: { |
| 68 | + type: DataType.STRING, |
| 69 | + allowNull: false, |
| 70 | + primaryKey: true, |
| 71 | + }, |
| 72 | + department: { |
| 73 | + type: DataType.STRING, |
| 74 | + allowNull: false, |
| 75 | + }, |
| 76 | + }); |
| 77 | + |
| 78 | + // Re seed positions data |
| 79 | + await sequelize.getQueryInterface().bulkInsert(POSITION_TABLE, POSITION_DATA); |
| 80 | + |
| 81 | + // Convert enum columns in users and applicant_records to type string |
| 82 | + await sequelize.getQueryInterface().sequelize.query(` |
| 83 | + ALTER TABLE "${USER_TABLE}" |
| 84 | + ALTER COLUMN "${position}" TYPE VARCHAR(255) |
| 85 | + USING ("${position}"::text); |
| 86 | + `); |
| 87 | + await sequelize.getQueryInterface().sequelize.query(` |
| 88 | + ALTER TABLE "${APPLICANT_RECORDS_TABLE}" |
| 89 | + ALTER COLUMN "${position}" TYPE VARCHAR(255) |
| 90 | + USING ("${position}"::text); |
| 91 | + `); |
| 92 | + |
| 93 | + // Re add FKs referencing string positions.title |
| 94 | + await sequelize.getQueryInterface().sequelize.query(` |
| 95 | + ALTER TABLE "${USER_TABLE}" |
| 96 | + ADD CONSTRAINT "${USER_TABLE}_${position}_fkey" |
| 97 | + FOREIGN KEY ("${position}") REFERENCES "${POSITION_TABLE}" ("title") |
| 98 | + ON DELETE SET NULL ON UPDATE CASCADE; |
| 99 | + `); |
| 100 | + await sequelize.getQueryInterface().sequelize.query(` |
| 101 | + ALTER TABLE "${APPLICANT_RECORDS_TABLE}" |
| 102 | + ADD CONSTRAINT "${APPLICANT_RECORDS_TABLE}_${position}_fkey" |
| 103 | + FOREIGN KEY ("${position}") REFERENCES "${POSITION_TABLE}" ("title") |
| 104 | + ON DELETE SET NULL ON UPDATE CASCADE; |
| 105 | + `); |
| 106 | + |
| 107 | + // Drop old enum types |
| 108 | + await sequelize |
| 109 | + .getQueryInterface() |
| 110 | + .sequelize.query(`DROP TYPE IF EXISTS "${enum_positions_title}" CASCADE;`); |
| 111 | + await sequelize |
| 112 | + .getQueryInterface() |
| 113 | + .sequelize.query( |
| 114 | + `DROP TYPE IF EXISTS "${enum_positions_department}}" CASCADE;`, |
| 115 | + ); |
| 116 | + await sequelize |
| 117 | + .getQueryInterface() |
| 118 | + .sequelize.query( |
| 119 | + `DROP TYPE IF EXISTS "${enum_applicant_records_position}" CASCADE;`, |
| 120 | + ); |
| 121 | +}; |
| 122 | + |
| 123 | +export const down: Migration = async ({ context: sequelize }) => { |
| 124 | + // Drop foreign key constraints referencing positions table |
| 125 | + await sequelize.getQueryInterface().sequelize.query(` |
| 126 | + ALTER TABLE "${USER_TABLE}" DROP CONSTRAINT IF EXISTS "${USER_TABLE}_${position}_fkey"; |
| 127 | + ALTER TABLE "${APPLICANT_RECORDS_TABLE}" DROP CONSTRAINT IF EXISTS "${APPLICANT_RECORDS_TABLE}_${position}_fkey"; |
| 128 | + `); |
| 129 | + |
| 130 | + // Drop the string based positions table |
| 131 | + await sequelize.getQueryInterface().dropTable(POSITION_TABLE); |
| 132 | + |
| 133 | + // Recreate table with enums |
| 134 | + await sequelize.getQueryInterface().createTable(POSITION_TABLE, { |
| 135 | + title: { |
| 136 | + type: DataType.ENUM(...POSITION_TITLES), |
| 137 | + allowNull: false, |
| 138 | + primaryKey: true, |
| 139 | + }, |
| 140 | + department: { |
| 141 | + type: DataType.ENUM(...DEPARTMENT_TITLES), |
| 142 | + allowNull: false, |
| 143 | + }, |
| 144 | + }); |
| 145 | + |
| 146 | + // Seed ENUM based positions table |
| 147 | + await sequelize.getQueryInterface().bulkInsert(POSITION_TABLE, POSITION_DATA); |
| 148 | + |
| 149 | + // change column type from string to enum |
| 150 | + await sequelize.getQueryInterface().sequelize.query(` |
| 151 | + ALTER TABLE "users" |
| 152 | + ALTER COLUMN "position" TYPE "${enum_positions_title}" |
| 153 | + USING ("position"::text::"${enum_positions_title}"); |
| 154 | +`); |
| 155 | + |
| 156 | + // change column type from string to enum |
| 157 | + await sequelize.getQueryInterface().sequelize.query(` |
| 158 | + ALTER TABLE "applicant_records" |
| 159 | + ALTER COLUMN "position" TYPE "${enum_positions_title}" |
| 160 | + USING ("position"::text::"${enum_positions_title}"); |
| 161 | +`); |
| 162 | + |
| 163 | + // add back foreign keys |
| 164 | + await sequelize.getQueryInterface().sequelize.query(` |
| 165 | + ALTER TABLE "${USER_TABLE}" |
| 166 | + ADD CONSTRAINT "${USER_TABLE}_${position}_fkey" |
| 167 | + FOREIGN KEY ("${position}") REFERENCES "${POSITION_TABLE}" ("title") |
| 168 | + ON DELETE SET NULL ON UPDATE CASCADE; |
| 169 | + `); |
| 170 | + await sequelize.getQueryInterface().sequelize.query(` |
| 171 | + ALTER TABLE "${APPLICANT_RECORDS_TABLE}" |
| 172 | + ADD CONSTRAINT "${APPLICANT_RECORDS_TABLE}_${position}_fkey" |
| 173 | + FOREIGN KEY ("${position}") REFERENCES "${POSITION_TABLE}" ("title") |
| 174 | + ON DELETE SET NULL ON UPDATE CASCADE; |
| 175 | + `); |
| 176 | +}; |
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