93 lines
2.4 KiB
SQL
93 lines
2.4 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 ('student', 'teacher');
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CREATE TABLE users(
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id serial PRIMARY KEY,
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username text UNIQUE NOT NULL,
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password_hash text NOT NULL,
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first_name text NOT NULL,
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last_name text 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 tokens(
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id uuid PRIMARY KEY,
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iat timestamp NOT NULL,
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exp timestamp NOT NULL,
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active boolean NOT NULL,
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user_id int NOT NULL REFERENCES users(id)
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);
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CREATE TABLE teachers(
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id serial PRIMARY KEY,
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user_id int NOT NULL UNIQUE REFERENCES users(id),
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max_students int NOT NULL
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);
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CREATE TABLE classes(id serial PRIMARY KEY, name text UNIQUE NOT NULL);
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CREATE TABLE students(
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id serial PRIMARY KEY,
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user_id int NOT NULL UNIQUE REFERENCES users(id),
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class_id int NOT NULL REFERENCES classes(id)
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);
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CREATE TABLE votes(
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id serial PRIMARY KEY,
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student_id int NOT NULL UNIQUE REFERENCES students(id)
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);
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CREATE TABLE teacher_votes(
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id serial PRIMARY KEY,
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vote_id int NOT NULL REFERENCES votes(id),
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teacher_id int NOT NULL REFERENCES teachers(id),
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priority int NOT NULL,
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UNIQUE (vote_id, teacher_id, priority)
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);
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CREATE TABLE assignments(
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id serial PRIMARY KEY,
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student_id int NOT NULL REFERENCES students(id) UNIQUE,
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teacher_id int NOT NULL REFERENCES teachers(id)
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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 assignments;
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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 classes;
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DROP TABLE tokens;
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DROP TABLE users;
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DROP TYPE user_roles; |