Create table for tracking changes across tables and operations

rest-api/db/migrations/20240719071602_main_tables.sql

@@ -82,6 +82,8 @@ CREATE TABLE internal.docs_category (
   user_id UUID REFERENCES internal.user (id) ON DELETE SET NULL DEFAULT (CURRENT_SETTING('request.jwt.claims', TRUE)::JSON ->> 'user_id') ::UUID,
   category_name VARCHAR(50) NOT NULL CHECK (TRIM(category_name) != ''),
   category_weight INTEGER CHECK (category_weight >= 0) NOT NULL,
+  last_modified_at TIMESTAMPTZ NOT NULL DEFAULT CLOCK_TIMESTAMP(),
+  last_modified_by UUID REFERENCES internal.user (id) ON DELETE SET NULL,
   UNIQUE (website_id, category_name),
   UNIQUE (website_id, category_weight)
 );
@@ -94,14 +96,15 @@ CREATE TABLE internal.article (
   meta_description VARCHAR(250) CHECK (TRIM(meta_description) != ''),
   meta_author VARCHAR(100) CHECK (TRIM(meta_author) != ''),
   cover_image UUID REFERENCES internal.media (id) ON DELETE SET NULL,
-  publication_date DATE DEFAULT CURRENT_DATE,
+  publication_date DATE,
   main_content TEXT CHECK (TRIM(main_content) != ''),
   category UUID REFERENCES internal.docs_category (id) ON DELETE SET NULL,
   article_weight INTEGER CHECK (article_weight IS NULL OR article_weight >= 0),
   created_at TIMESTAMPTZ NOT NULL DEFAULT CLOCK_TIMESTAMP(),
   last_modified_at TIMESTAMPTZ NOT NULL DEFAULT CLOCK_TIMESTAMP(),
   last_modified_by UUID REFERENCES internal.user (id) ON DELETE SET NULL,
-  title_description_search TSVECTOR GENERATED ALWAYS AS (TO_TSVECTOR('english', COALESCE(title, '') || ' ' || COALESCE(meta_description, ''))) STORED
+  title_description_search TSVECTOR GENERATED ALWAYS AS (TO_TSVECTOR('english', COALESCE(title, '') || ' ' || COALESCE(meta_description, ''))) STORED,
+  UNIQUE (website_id, category, article_weight)
 );
 
 CREATE TABLE internal.footer (
@@ -128,19 +131,7 @@ CREATE TABLE internal.collab (
   PRIMARY KEY (website_id, user_id)
 );
 
-CREATE TABLE internal.change_log (
-  website_id UUID REFERENCES internal.website (id) ON DELETE CASCADE,
-  user_id UUID REFERENCES internal.user (id) ON DELETE CASCADE DEFAULT (CURRENT_SETTING('request.jwt.claims', TRUE)::JSON ->> 'user_id') ::UUID,
-  change_summary VARCHAR(255) NOT NULL,
-  previous_value JSONB,
-  new_value JSONB,
-  timestamp TIMESTAMPTZ NOT NULL DEFAULT CLOCK_TIMESTAMP(),
-  PRIMARY KEY (website_id, user_id, TIMESTAMP)
-);
-
 -- migrate:down
-DROP TABLE internal.change_log;
-
 DROP TABLE internal.collab;
 
 DROP TABLE internal.legal_information;

rest-api/db/migrations/20240720132802_exposed_views_functions.sql

@@ -82,13 +82,6 @@ SELECT
 FROM
   internal.collab;
 
-CREATE VIEW api.change_log WITH ( security_invoker = ON
-) AS
-SELECT
-  *
-FROM
-  internal.change_log;
-
 CREATE FUNCTION api.create_website (content_type VARCHAR(10), title VARCHAR(50), OUT website_id UUID)
 AS $$
 DECLARE
@@ -170,15 +163,9 @@ GRANT SELECT, INSERT, UPDATE, DELETE ON internal.collab TO authenticated_user;
 
 GRANT SELECT, INSERT, UPDATE, DELETE ON api.collab TO authenticated_user;
 
-GRANT SELECT ON internal.change_log TO authenticated_user;
-
-GRANT SELECT ON api.change_log TO authenticated_user;
-
 -- migrate:down
 DROP FUNCTION api.create_website (VARCHAR(10), VARCHAR(50));
 
-DROP VIEW api.change_log;
-
 DROP VIEW api.collab;
 
 DROP VIEW api.legal_information;

rest-api/db/migrations/20240805132306_last_modified_triggers.sql

@@ -44,6 +44,11 @@ CREATE TRIGGER update_article_last_modified
   FOR EACH ROW
   EXECUTE FUNCTION internal.update_last_modified ();
 
+CREATE TRIGGER update_docs_category_modified
+  BEFORE INSERT OR UPDATE OR DELETE ON internal.docs_category
+  FOR EACH ROW
+  EXECUTE FUNCTION internal.update_last_modified ();
+
 CREATE TRIGGER update_footer_last_modified
   BEFORE UPDATE ON internal.footer
   FOR EACH ROW
@@ -70,6 +75,8 @@ DROP TRIGGER update_home_last_modified ON internal.home;
 
 DROP TRIGGER update_article_last_modified ON internal.article;
 
+DROP TRIGGER update_docs_category_modified ON internal.docs_category;
+
 DROP TRIGGER update_footer_last_modified ON internal.footer;
 
 DROP TRIGGER update_legal_information_last_modified ON internal.legal_information;

rest-api/db/migrations/20240911070907_change_log.sql

@@ -0,0 +1,126 @@
+-- migrate:up
+CREATE EXTENSION hstore;
+
+CREATE TABLE internal.change_log (
+  id UUID PRIMARY KEY DEFAULT gen_random_uuid (),
+  website_id UUID REFERENCES internal.website (id) ON DELETE CASCADE,
+  user_id UUID REFERENCES internal.user (id) ON DELETE CASCADE DEFAULT (CURRENT_SETTING('request.jwt.claims', TRUE)::JSON ->> 'user_id') ::UUID,
+  tstamp TIMESTAMPTZ NOT NULL DEFAULT CLOCK_TIMESTAMP(),
+  table_name TEXT NOT NULL,
+  operation TEXT NOT NULL,
+  old_value HSTORE,
+  new_value HSTORE
+);
+
+CREATE FUNCTION internal.track_changes ()
+  RETURNS TRIGGER
+  AS $$
+DECLARE
+  _website_id UUID;
+BEGIN
+  IF TG_TABLE_NAME = 'website' THEN
+    _website_id := NEW.id;
+  ELSE
+    _website_id := NEW.website_id;
+  END IF;
+  IF TG_OP = 'INSERT' THEN
+    INSERT INTO internal.change_log (website_id, table_name, operation, new_value)
+      VALUES (_website_id, TG_TABLE_NAME, TG_OP, HSTORE (NEW));
+    RETURN NEW;
+  ELSIF TG_OP = 'UPDATE' THEN
+    INSERT INTO internal.change_log (website_id, table_name, operation, old_value, new_value)
+      VALUES (_website_id, TG_TABLE_NAME, TG_OP, HSTORE (OLD) - HSTORE (NEW), HSTORE (NEW) - HSTORE (OLD));
+    RETURN NEW;
+  ELSIF TG_OP = 'DELETE' THEN
+    INSERT INTO internal.change_log (website_id, table_name, operation, old_value)
+      VALUES (_website_id, TG_TABLE_NAME, TG_OP, HSTORE (OLD));
+    RETURN NEW;
+  END IF;
+END;
+$$
+LANGUAGE plpgsql
+SECURITY DEFINER;
+
+CREATE TRIGGER website_track_changes
+  AFTER INSERT OR UPDATE OR DELETE ON internal.website
+  FOR EACH ROW
+  EXECUTE FUNCTION internal.track_changes ();
+
+CREATE TRIGGER settings_track_changes
+  AFTER UPDATE ON internal.settings
+  FOR EACH ROW
+  EXECUTE FUNCTION internal.track_changes ();
+
+CREATE TRIGGER header_track_changes
+  AFTER UPDATE ON internal.header
+  FOR EACH ROW
+  EXECUTE FUNCTION internal.track_changes ();
+
+CREATE TRIGGER home_track_changes
+  AFTER UPDATE ON internal.home
+  FOR EACH ROW
+  EXECUTE FUNCTION internal.track_changes ();
+
+CREATE TRIGGER article_track_changes
+  AFTER INSERT OR UPDATE OR DELETE ON internal.article
+  FOR EACH ROW
+  EXECUTE FUNCTION internal.track_changes ();
+
+CREATE TRIGGER docs_category_track_changes
+  AFTER INSERT OR UPDATE OR DELETE ON internal.docs_category
+  FOR EACH ROW
+  EXECUTE FUNCTION internal.track_changes ();
+
+CREATE TRIGGER footer_track_changes
+  AFTER UPDATE ON internal.footer
+  FOR EACH ROW
+  EXECUTE FUNCTION internal.track_changes ();
+
+CREATE TRIGGER legal_information_track_changes
+  AFTER UPDATE ON internal.legal_information
+  FOR EACH ROW
+  EXECUTE FUNCTION internal.track_changes ();
+
+CREATE TRIGGER collab_track_changes
+  AFTER INSERT OR UPDATE OR DELETE ON internal.collab
+  FOR EACH ROW
+  EXECUTE FUNCTION internal.track_changes ();
+
+CREATE VIEW api.change_log WITH ( security_invoker = ON
+) AS
+SELECT
+  *
+FROM
+  internal.change_log;
+
+GRANT SELECT ON internal.change_log TO authenticated_user;
+
+GRANT SELECT ON api.change_log TO authenticated_user;
+
+-- migrate:down
+DROP TRIGGER website_track_changes ON internal.website;
+
+DROP TRIGGER settings_track_changes ON internal.settings;
+
+DROP TRIGGER header_track_changes ON internal.header;
+
+DROP TRIGGER home_track_changes ON internal.home;
+
+DROP TRIGGER article_track_changes ON internal.article;
+
+DROP TRIGGER docs_category_track_changes ON internal.docs_category;
+
+DROP TRIGGER footer_track_changes ON internal.footer;
+
+DROP TRIGGER legal_information_track_changes ON internal.legal_information;
+
+DROP TRIGGER collab_track_changes ON internal.collab;
+
+DROP FUNCTION internal.track_changes ();
+
+DROP VIEW api.change_log;
+
+DROP TABLE internal.change_log;
+
+DROP EXTENSION hstore;
+

web-app/src/lib/components/DateTime.svelte

@@ -11,6 +11,6 @@
   };
 </script>
 
-<time datetime={date.toLocaleString("sv").replace(" ", "T")}>
+<time datetime={new Date(date).toLocaleString("sv").replace(" ", "T")}>
-  {date.toLocaleString("en-us", { ...options })}
+  {new Date(date).toLocaleString("en-us", { ...options })}
 </time>