Meal plan recipe and notes also fit into one table (references #477)

migrations/0096.sql

@@ -1,6 +1,120 @@
-CREATE TABLE meal_plan_notes (
+PRAGMA legacy_alter_table = ON;
+
+ALTER TABLE meal_plan RENAME TO meal_plan_old;
+
+CREATE TABLE meal_plan (
 	id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT UNIQUE,
 	day DATE NOT NULL,
+	type TEXT DEFAULT 'recipe',
+	recipe_id INTEGER,
+	recipe_servings INTEGER DEFAULT 1,
 	note TEXT,
 	row_created_timestamp DATETIME DEFAULT (datetime('now', 'localtime'))
 );
+
+INSERT INTO meal_plan
+	(day, recipe_id, recipe_servings, row_created_timestamp, type)
+SELECT day, recipe_id, servings, row_created_timestamp, 'recipe'
+FROM meal_plan_old;
+
+DROP TABLE meal_plan_old;
+
+CREATE TRIGGER create_internal_recipe AFTER INSERT ON meal_plan
+BEGIN
+	/* This contains practically the same logic as the trigger remove_internal_recipe */
+
+	-- Create a recipe per day
+	DELETE FROM recipes
+	WHERE name = NEW.day
+		AND type = 'mealplan-day';
+
+	INSERT OR REPLACE INTO recipes
+		(id, name, type)
+	VALUES
+		((SELECT MIN(id) - 1 FROM recipes), NEW.day, 'mealplan-day');
+	
+	-- Create a recipe per week
+	DELETE FROM recipes
+	WHERE name = LTRIM(STRFTIME('%Y-%W', NEW.day), '0')
+		AND type = 'mealplan-week';
+
+	INSERT INTO recipes
+		(id, name, type)
+	VALUES
+		((SELECT MIN(id) - 1 FROM recipes), LTRIM(STRFTIME('%Y-%W', NEW.day), '0'), 'mealplan-week');
+	
+	-- Delete all current nestings entries for the day and week recipe
+	DELETE FROM recipes_nestings
+	WHERE recipe_id IN (SELECT id FROM recipes WHERE name = NEW.day AND type = 'mealplan-day')
+		OR recipe_id IN (SELECT id FROM recipes WHERE name = NEW.day AND type = 'mealplan-week');
+
+	-- Add all recipes for this day as included recipes in the day-recipe
+	INSERT INTO recipes_nestings
+		(recipe_id, includes_recipe_id, servings)
+	SELECT (SELECT id FROM recipes WHERE name = NEW.day AND type = 'mealplan-day'), recipe_id, SUM(recipe_servings)
+	FROM meal_plan
+	WHERE day = NEW.day
+		AND type = 'recipe'
+		AND recipe_id IS NOT NULL
+	GROUP BY recipe_id;
+
+	-- Add all recipes for this week as included recipes in the week-recipe
+	INSERT INTO recipes_nestings
+		(recipe_id, includes_recipe_id, servings)
+	SELECT (SELECT id FROM recipes WHERE name = LTRIM(STRFTIME('%Y-%W', NEW.day), '0') AND type = 'mealplan-week'), recipe_id, SUM(recipe_servings)
+	FROM meal_plan
+	WHERE STRFTIME('%Y-%W', day) = STRFTIME('%Y-%W', NEW.day)
+		AND type = 'recipe'
+		AND recipe_id IS NOT NULL
+	GROUP BY recipe_id;
+END;
+
+CREATE TRIGGER remove_internal_recipe AFTER DELETE ON meal_plan
+BEGIN
+	/* This contains practically the same logic as the trigger create_internal_recipe */
+
+	-- Create a recipe per day
+	DELETE FROM recipes
+	WHERE name = OLD.day
+		AND type = 'mealplan-day';
+
+	INSERT OR REPLACE INTO recipes
+		(id, name, type)
+	VALUES
+		((SELECT MIN(id) - 1 FROM recipes), OLD.day, 'mealplan-day');
+	
+	-- Create a recipe per week
+	DELETE FROM recipes
+	WHERE name = LTRIM(STRFTIME('%Y-%W', OLD.day), '0')
+		AND type = 'mealplan-week';
+
+	INSERT INTO recipes
+		(id, name, type)
+	VALUES
+		((SELECT MIN(id) - 1 FROM recipes), LTRIM(STRFTIME('%Y-%W', OLD.day), '0'), 'mealplan-week');
+	
+	-- Delete all current nestings entries for the day and week recipe
+	DELETE FROM recipes_nestings
+	WHERE recipe_id IN (SELECT id FROM recipes WHERE name = OLD.day AND type = 'mealplan-day')
+		OR recipe_id IN (SELECT id FROM recipes WHERE name = OLD.day AND type = 'mealplan-week');
+
+	-- Add all recipes for this day as included recipes in the day-recipe
+	INSERT INTO recipes_nestings
+		(recipe_id, includes_recipe_id, servings)
+	SELECT (SELECT id FROM recipes WHERE name = OLD.day AND type = 'mealplan-day'), recipe_id, SUM(recipe_servings)
+	FROM meal_plan
+	WHERE day = OLD.day
+		AND type = 'recipe'
+		AND recipe_id IS NOT NULL
+	GROUP BY recipe_id;
+
+	-- Add all recipes for this week as included recipes in the week-recipe
+	INSERT INTO recipes_nestings
+		(recipe_id, includes_recipe_id, servings)
+	SELECT (SELECT id FROM recipes WHERE name = LTRIM(STRFTIME('%Y-%W', OLD.day), '0') AND type = 'mealplan-week'), recipe_id, SUM(recipe_servings)
+	FROM meal_plan
+	WHERE STRFTIME('%Y-%W', day) = STRFTIME('%Y-%W', OLD.day)
+		AND type = 'recipe'
+		AND recipe_id IS NOT NULL
+	GROUP BY recipe_id;
+END;