Fix missing navigation on new apps

packages/app.spec.sql

@@ -343,6 +343,17 @@ CREATE OR REPLACE PACKAGE app AS
 
 
 
+    --
+    -- Returns parent page ID for requested or current page
+    --
+    FUNCTION get_page_parent (
+        in_page_id              navigation.page_id%TYPE     := NULL,
+        in_app_id               navigation.app_id%TYPE      := NULL
+    )
+    RETURN navigation.page_id%TYPE;
+
+
+
     --
     -- Get page name from APEX dictionary
     --

packages/app.sql

@@ -657,6 +657,27 @@ CREATE OR REPLACE PACKAGE BODY app AS
 
 
 
+    FUNCTION get_page_parent (
+        in_page_id              navigation.page_id%TYPE     := NULL,
+        in_app_id               navigation.app_id%TYPE      := NULL
+    )
+    RETURN navigation.page_id%TYPE
+    AS
+        out_id                  apex_application_pages.page_id%TYPE;
+    BEGIN
+        SELECT n.parent_id INTO out_id
+        FROM navigation n
+        WHERE n.app_id          = COALESCE(in_app_id, app.get_app_id())
+            AND n.page_id       = COALESCE(in_page_id, app.get_page_id());
+        --
+        RETURN out_id;
+    EXCEPTION
+    WHEN NO_DATA_FOUND THEN
+        RETURN NULL;
+    END;
+
+
+
     FUNCTION get_page_name (
         in_page_id              navigation.page_id%TYPE     := NULL,
         in_app_id               navigation.app_id%TYPE      := NULL,

views/nav_top.sql

@@ -1,17 +1,15 @@
 CREATE OR REPLACE VIEW nav_top AS
 WITH curr AS (
     SELECT
-        n.app_id,
-        MAX(n.page_id)                          AS page_id,
-        MAX(n.parent_id)                        AS parent_id,
-        app.get_page_root(MAX(n.page_id))       AS page_root,
-        app.get_page_group(MAX(n.page_id))      AS page_group,
-        app.get_user_id()                       AS user_id,
-        app.get_user_name()                     AS user_name
-    FROM navigation n
-    WHERE n.app_id          = app.get_app_id()
-        AND n.page_id       IN (app.get_page_id(), 0)  -- always return 1 row
-    GROUP BY n.app_id
+        app.get_app_id()            AS app_id,
+        app.get_page_id()           AS page_id,
+        app.get_page_parent()       AS parent_id,
+        app.get_page_root()         AS page_root,
+        app.get_page_group()        AS page_group,
+        app.get_user_id()           AS user_id,
+        app.get_user_name()         AS user_name
+    FROM users u
+    WHERE u.user_id = app.get_user_id()
 )
 SELECT
     CASE WHEN n.parent_id IS NULL THEN 1 ELSE 2 END AS lvl,