groupMembers: add unique constraint

fixes #696
2020-12-22 10:34:19 -08:00
parent b2fe43184c
commit 246956fd0e
7 changed files with 84 additions and 21 deletions
@@ -44,7 +44,8 @@ CREATE TABLE IF NOT EXISTS groupMembers(
    groupId VARCHAR(128) NOT NULL,
    userId VARCHAR(128) NOT NULL,
    FOREIGN KEY(groupId) REFERENCES userGroups(id),
-    FOREIGN KEY(userId) REFERENCES users(id));
+    FOREIGN KEY(userId) REFERENCES users(id),
+    UNIQUE (groupId, userId));

 CREATE TABLE IF NOT EXISTS tokens(
    id VARCHAR(128) NOT NULL UNIQUE,