27 lines
635 B
MySQL
27 lines
635 B
MySQL
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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 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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ALTER TABLE
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students DROP COLUMN vote_id;
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DROP TABLE teacher_votes;
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DROP TABLE votes;
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