83 lines
2.1 KiB
SQL
83 lines
2.1 KiB
SQL
/*
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Mentorenwahl: A fullstack application for assigning mentors to students based on their whishes.
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Copyright (C) 2022 Dominic Grimm
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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-- +micrate Up
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-- SQL in section ' Up ' is executed when this migration is applied
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CREATE TYPE user_roles AS ENUM (' Teacher ', ' Student ');
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CREATE TABLE users(
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id BIGSERIAL PRIMARY KEY,
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username TEXT UNIQUE NOT NULL,
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role user_roles NOT NULL,
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admin BOOLEAN NOT NULL
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);
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CREATE TABLE teachers(
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id BIGSERIAL PRIMARY KEY,
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user_id BIGINT NOT NULL UNIQUE REFERENCES users(id),
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max_students INT NOT NULL,
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skif BOOLEAN NOT NULL
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);
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CREATE TABLE students(
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id BIGSERIAL PRIMARY KEY,
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user_id BIGINT NOT NULL UNIQUE REFERENCES users(id),
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skif BOOLEAN NOT NULL
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);
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ALTER TABLE
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users
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ADD
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COLUMN teacher_id BIGINT UNIQUE REFERENCES teachers(id);
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ALTER TABLE
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users
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ADD
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COLUMN student_id BIGINT UNIQUE REFERENCES students(id);
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CREATE TABLE votes(
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id BIGSERIAL PRIMARY KEY,
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student_id BIGINT NOT NULL UNIQUE REFERENCES students(id)
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);
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ALTER TABLE
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students
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ADD
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COLUMN vote_id BIGINT UNIQUE REFERENCES votes(id);
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CREATE TABLE teacher_votes(
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id BIGSERIAL PRIMARY KEY,
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vote_id BIGINT NOT NULL REFERENCES votes(id),
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teacher_id BIGINT NOT NULL REFERENCES teachers(id),
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priority INT NOT NULL
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);
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-- +micrate Down
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-- SQL section ' Down ' is executed when this migration is rolled back
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DROP TABLE teacher_votes;
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DROP TABLE votes;
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DROP TABLE admins;
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DROP TABLE teachers;
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DROP TABLE students;
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DROP TABLE users;
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DROP TYPE user_roles; |