add annotation dataset foreign key (#3482)

* add annotation dataset foreign key and fix pull number from #3415

* add pr number to evolution and update migration #3482

* Update 035-add-annotation-dataset-foreign-key.sql

* Update 035-add-annotation-dataset-foreign-key.sql

MIGRATIONS.md

@@ -6,11 +6,11 @@ User-facing changes are documented in the [changelog](CHANGELOG.md).
 
 ## Unreleased
 - If additional dataset directories were watched using the config key `additionalFolders`, those symlinks are no longer updated. Consider setting up additional datastores for these directories respectively.
--
+
 ### Postgres Evolutions:
-- [033-tasktype-recommendedConfiguration.sql](033-tasktype-recommendedConfiguration.sql)
+- [033-tasktype-recommendedConfiguration.sql](conf/evolutions/033-tasktype-recommendedConfiguration.sql)
 - [034-meshes.sql](conf/evolutions/034-meshes.sql)
-
+- [035-add-annotation-dataset-foreign-key.sql](conf/evolutions/035-add-annotation-dataset-foreign-key.sql)
 
 ## [18.11.0](https://github.com/scalableminds/webknossos/releases/tag/18.11.0) - 2018-10-29
 - Some config keys have changed, if you overwrite them in your setup, please adapt: the `oxalis` prefix is renamed to `webKnossos` so the new keys are `webKnossos.user.time.tracingPauseInSeconds`, `webKnossos.tasks.maxOpenPerUser`, `webKnossos.newOrganizationMailingList` as well as `datastore.webKnossos.uri`, `datastore.webKnossos.secured`, `datastore.webKnossos.pingIntervalMinutes` for the data store.

conf/evolutions/035-add-annotation-dataset-foreign-key.sql

@@ -0,0 +1,10 @@
+-- https://github.com/scalableminds/webknossos/pull/3482
+
+START TRANSACTION;
+
+ALTER TABLE webknossos.annotations
+	ADD CONSTRAINT dataSet_ref FOREIGN KEY(_dataSet) REFERENCES webknossos.dataSets(_id) DEFERRABLE;
+
+UPDATE webknossos.releaseInformation SET schemaVersion = 35;
+
+COMMIT TRANSACTION;

conf/evolutions/reversions/035-add-annotation-dataset-foreign-key.sql

@@ -0,0 +1,8 @@
+START TRANSACTION;
+
+ALTER TABLE webknossos.annotations
+	DROP CONSTRAINT dataSet_ref;
+
+UPDATE webknossos.releaseInformation SET schemaVersion = 34;
+
+COMMIT TRANSACTION;

tools/postgres/schema.sql

@@ -21,7 +21,7 @@ START TRANSACTION;
 CREATE TABLE webknossos.releaseInformation (
   schemaVersion BIGINT NOT NULL
 );
-INSERT INTO webknossos.releaseInformation(schemaVersion) values(34);
+INSERT INTO webknossos.releaseInformation(schemaVersion) values(35);
 COMMIT TRANSACTION;
 
 CREATE TABLE webknossos.analytics(
@@ -340,7 +340,8 @@ ALTER TABLE webknossos.analytics
 ALTER TABLE webknossos.annotations
   ADD CONSTRAINT task_ref FOREIGN KEY(_task) REFERENCES webknossos.tasks(_id) ON DELETE SET NULL DEFERRABLE,
   ADD CONSTRAINT team_ref FOREIGN KEY(_team) REFERENCES webknossos.teams(_id) DEFERRABLE,
-  ADD CONSTRAINT user_ref FOREIGN KEY(_user) REFERENCES webknossos.users(_id) DEFERRABLE;
+  ADD CONSTRAINT user_ref FOREIGN KEY(_user) REFERENCES webknossos.users(_id) DEFERRABLE,
+  ADD CONSTRAINT dataSet_ref FOREIGN KEY(_dataSet) REFERENCES webknossos.dataSets(_id) DEFERRABLE;
 ALTER TABLE webknossos.meshes
   ADD CONSTRAINT annotation_ref FOREIGN KEY(_annotation) REFERENCES webknossos.annotations(_id) DEFERRABLE;
 ALTER TABLE webknossos.dataSets