66 lines
No EOL
1.3 KiB
SQL
66 lines
No EOL
1.3 KiB
SQL
-- +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; |