kategory: sortierung begnnen

category.py

@@ -10,6 +10,7 @@ from trytond.pyson import Eval, If, Bool
 from trytond.exceptions import UserError
 from trytond.i18n import gettext
 from sql.operators import Equal
+from sql import With
 
 
 sel_categorytype = [
@@ -79,6 +80,32 @@ class Category(tree(separator='/'), sequence_ordered(), ModelSQL, ModelView):
     def default_right():
         return 0
 
+    @staticmethod
+    def order_rec_name(tables):
+        """ order by pos
+        """
+        Category2 = Pool().get('cashbook.category')
+        tab_cat = Category2.__table__()
+        table, _ = tables[None]
+
+        categories = With('id', 'name', 'name_path', recursive=True)
+        categories.query = select(tab_cat.id, tab_cat.name, array[])
+
+# ~ with recursive categories (id, level, name, name_path) as (
+    # ~ select "a"."id", 0, "a"."name", array["a"."name"]
+    # ~ from cashbook_category as "a"
+    # ~ where "a"."parent" is null
+
+    # ~ union all
+
+    # ~ select "b"."id", "c"."level" + 1, "b"."name", array_append("c"."name_path", "b"."name")
+    # ~ from cashbook_category as "b"
+    # ~ inner join categories as "c" on "c"."id" = "b"."parent"
+# ~ )
+# ~ select "d"."id", array_to_string("d"."name_path", '/') as "rec_name"
+# ~ from categories as "d"
+# ~ order by  "rec_name"
+
     @fields.depends('parent', '_parent_parent.cattype')
     def on_change_with_parent_cattype(self, name=None):
         """ get type of parent category or None