diff options
| -rw-r--r-- | sql/Pg-database.sql | 35 |
1 files changed, 32 insertions, 3 deletions
diff --git a/sql/Pg-database.sql b/sql/Pg-database.sql index 9b3b622b..39c08f4c 100644 --- a/sql/Pg-database.sql +++ b/sql/Pg-database.sql @@ -2572,9 +2572,38 @@ end; $$ language plpgsql; COMMENT ON FUNCTION menu_children(int) IS $$ This function returns all menu items which are children of in_parent_id (the only input parameter. $$; --- --- PostgreSQL database dump --- + +CREATE OR REPLACE FUNCTION +menu_insert(in_parent_id int, in_position int, in_label text) +returns int +AS $$ +DECLARE + new_id int; +BEGIN + UPDATE menu_node + SET position = position * -1 + WHERE parent = in_parent_id + AND position >= in_position; + + INSERT INTO menu_node (parent, position, label) + VALUES (in_parent_id, in_position, in_label); + + SELECT INTO new_id currval('menu_node_id_seq'); + + UPDATE menu_node + SET position = (position * -1) + 1 + WHERE parent = in_parent_id + AND position < 0; + + RETURN new_id; +END; +$$ language plpgsql; + +comment on function menu_insert(int, int, text) is $$ +This function inserts menu items at arbitrary positions. The arguments are, in +order: parent, position, label. The return value is the id number of the menu +item created. $$; + CREATE VIEW menu_friendly AS SELECT t."level", t.path, t.list_order, (repeat(' '::text, (2 * t."level")) || (n.label)::text) AS label, n.id, n."position" FROM (connectby('menu_node'::text, 'id'::text, 'parent'::text, 'position'::text, '0'::text, 0, ','::text) t(id integer, parent integer, "level" integer, path text, list_order integer) JOIN menu_node n USING (id)); |