Include meal plan recipes in the calendar (closes #368)

migrations/0091.sql

@@ -0,0 +1,19 @@
+DROP VIEW recipes_nestings_resolved;
+CREATE VIEW recipes_nestings_resolved
+AS
+WITH RECURSIVE r1(recipe_id, includes_recipe_id, includes_servings)
+AS (
+	SELECT id, id, 1
+	FROM recipes
+	
+	UNION ALL
+	
+	SELECT rn.recipe_id, r1.includes_recipe_id, rn.servings
+	FROM recipes_nestings rn, r1 r1
+	WHERE rn.includes_recipe_id = r1.recipe_id
+	LIMIT 100 -- This is just a safety limit to prevent infinite loops due to infinite nested recipes
+)
+SELECT
+	*,
+	1 AS id -- Dummy, LessQL needs an id column
+FROM r1;