Ingredients can now be manually ordered

backend/sql/version_1.sql

@@ -56,6 +56,7 @@ CREATE TABLE [Recipe] (
     [lang] TEXT NOT NULL DEFAULT 'en',
     [estimated_time] INTEGER, -- in [s].
     [description] TEXT NOT NULL DEFAULT '',
+    -- 0: Unknown, 1: Easy, 2: Medium, 4: Hard.
     [difficulty] INTEGER NOT NULL DEFAULT 0,
     [servings] INTEGER DEFAULT 4,
     [is_published] INTEGER NOT NULL DEFAULT FALSE,
@@ -64,6 +65,28 @@ CREATE TABLE [Recipe] (
     FOREIGN KEY([user_id]) REFERENCES [User]([id]) ON DELETE SET NULL
 ) STRICT;
 
+CREATE TRIGGER [Recipe_trigger_update_difficulty]
+BEFORE UPDATE OF [difficulty]
+ON [Recipe]
+BEGIN
+    SELECT
+        CASE
+            WHEN NEW.[difficulty] < 0 OR NEW.[difficulty] > 3 THEN
+                RAISE (ABORT, 'Invalid [difficulty] value')
+        END;
+END;
+
+CREATE TRIGGER [Recipe_trigger_insert_difficulty]
+BEFORE INSERT
+ON [Recipe]
+BEGIN
+    SELECT
+        CASE
+            WHEN NEW.[difficulty] < 0 OR NEW.[difficulty] > 3 THEN
+                RAISE (ABORT, 'Invalid [difficulty] value')
+        END;
+END;
+
 CREATE TABLE [Image] (
     [Id] INTEGER PRIMARY KEY,
     [recipe_id] INTEGER NOT NULL,
@@ -124,6 +147,7 @@ CREATE INDEX [Step_order_index] ON [Group]([order]);
 CREATE TABLE [Ingredient] (
     [id] INTEGER PRIMARY KEY,
 
+    [order] INTEGER NOT NULL DEFAULT 0,
     [step_id] INTEGER NOT NULL,
 
     [name] TEXT NOT NULL DEFAULT '',
@@ -134,14 +158,4 @@ CREATE TABLE [Ingredient] (
     FOREIGN KEY([step_id]) REFERENCES [Step]([id]) ON DELETE CASCADE
 ) STRICT;
 
--- CREATE TABLE [IntermediateSubstance] (
---     [id] INTEGER PRIMARY KEY,
---     [name] TEXT NOT NULL DEFAULT '',
---     [quantity_value] REAL,
---     [quantity_unit] TEXT NOT NULL DEFAULT '',
---     [output_group_id] INTEGER NOT NULL,
---     [input_group_id] INTEGER NOT NULL,
-
---     FOREIGN KEY([output_group_id]) REFERENCES [group]([id]) ON DELETE CASCADE,
---     FOREIGN KEY([input_group_id]) REFERENCES [group]([id]) ON DELETE CASCADE
--- ) STRICT;
+CREATE INDEX [Ingredient_order_index] ON [Ingredient]([order]);