| 1 | -- SPDX-License-Identifier: AGPL-3.0-or-later |
| 2 | -- |
| 3 | -- User email addresses. Users can have multiple emails; exactly one is |
| 4 | -- the primary at any time (enforced by a partial unique index). |
| 5 | -- email is citext + globally unique across all users (an email address |
| 6 | -- can belong to at most one shithub account). |
| 7 | |
| 8 | -- +goose Up |
| 9 | CREATE TABLE user_emails ( |
| 10 | id bigserial PRIMARY KEY, |
| 11 | user_id bigint NOT NULL REFERENCES users(id) ON DELETE CASCADE, |
| 12 | email citext NOT NULL UNIQUE, |
| 13 | is_primary boolean NOT NULL DEFAULT false, |
| 14 | verified boolean NOT NULL DEFAULT false, |
| 15 | verification_token_hash bytea, |
| 16 | verification_sent_at timestamptz, |
| 17 | verified_at timestamptz, |
| 18 | created_at timestamptz NOT NULL DEFAULT now(), |
| 19 | |
| 20 | CONSTRAINT user_emails_email_length CHECK (char_length(email::text) BETWEEN 3 AND 254), |
| 21 | CONSTRAINT user_emails_email_shape CHECK (email::text LIKE '%@%') |
| 22 | ); |
| 23 | |
| 24 | -- At most one primary email per user. |
| 25 | CREATE UNIQUE INDEX user_emails_one_primary_per_user |
| 26 | ON user_emails (user_id) WHERE is_primary; |
| 27 | |
| 28 | CREATE INDEX user_emails_user_id_idx ON user_emails (user_id); |
| 29 | |
| 30 | -- Now that user_emails exists, attach the FK from users.primary_email_id. |
| 31 | ALTER TABLE users |
| 32 | ADD CONSTRAINT users_primary_email_fk |
| 33 | FOREIGN KEY (primary_email_id) REFERENCES user_emails(id) |
| 34 | ON DELETE SET NULL DEFERRABLE INITIALLY DEFERRED; |
| 35 | |
| 36 | -- +goose Down |
| 37 | ALTER TABLE users DROP CONSTRAINT IF EXISTS users_primary_email_fk; |
| 38 | DROP TABLE IF EXISTS user_emails; |
| 39 |