Session persistence

sql/migrations/patches/20190925000000-updated-at/up.sql

@@ -1,11 +1,7 @@
 CREATE OR REPLACE FUNCTION set_updated_timestamp()
 RETURNS TRIGGER AS $$
 BEGIN
-   IF row(NEW.*) IS DISTINCT FROM row(OLD.*) THEN
-      NEW.updated_at = now(); 
-      RETURN NEW;
-   ELSE
-      RETURN OLD;
-   END IF;
+    NEW.updated_at = now(); 
+    RETURN NEW;
 END;
 $$ language 'plpgsql';

sql/migrations/patches/20191008190200-sessions/down.sql

@@ -0,0 +1 @@
+DROP TABLE "sessions";

sql/migrations/patches/20191008190200-sessions/up.sql

@@ -0,0 +1,10 @@
+CREATE TABLE "sessions" (
+    "sid" text NOT NULL COLLATE "default",
+	"session" json NOT NULL,
+    "expires_at" timestamptz NOT NULL,
+    "created_at" timestamptz NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updated_at" timestamptz NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+
+ALTER TABLE "sessions" ADD CONSTRAINT "session_pkey" PRIMARY KEY ("sid") NOT DEFERRABLE INITIALLY IMMEDIATE;
+CREATE TRIGGER "set_sessions_updated" BEFORE UPDATE ON "sessions" FOR EACH ROW EXECUTE PROCEDURE set_updated_timestamp();

sql/sessions/all.sql

@@ -0,0 +1 @@
+SELECT "sid", "session" FROM "sessions";

sql/sessions/clear.sql

@@ -0,0 +1 @@
+TRUNCATE "sessions";

sql/sessions/destroy.sql

@@ -0,0 +1 @@
+DELETE FROM "sessions" WHERE "sid" = $1;

sql/sessions/get.sql

@@ -0,0 +1 @@
+SELECT "session" FROM "sessions" WHERE "sid"=$1 AND CURRENT_TIMESTAMP < "expires_at";

sql/sessions/length.sql

@@ -0,0 +1 @@
+SELECT COUNT(*) as length FROM "sessions";

sql/sessions/set.sql

@@ -0,0 +1,3 @@
+INSERT INTO "sessions" AS s ("sid", "session", "expires_at") VALUES ($1, $2, $3)
+    ON CONFLICT ON CONSTRAINT "session_pkey"
+    DO UPDATE SET "session"=$2, "expires_at"=$3 WHERE "s"."sid"=$1;

sql/sessions/touch.sql

@@ -0,0 +1 @@
+UPDATE "sessions" SET "expires_at"=$2 WHERE "sid"=$1;