Final touches to sql

app/Migrations/create-schema.sql

@@ -9,15 +9,9 @@ DROP TABLE IF EXISTS customers;
 DROP TABLE IF EXISTS cookies;
 
 --------------------------------------------
--- Recipe/Cookie related tables
+-- Orders, deliveries and customers
 --------------------------------------------
 
--- Holds the different types of cookies we can make.
-CREATE TABLE IF NOT EXISTS cookies (
-    cookie_id INTEGER PRIMARY KEY,
-    cookie_name VARCHAR(50) NOT NULL UNIQUE
-);
-
 -- Our known customers, may need more fields
 CREATE TABLE IF NOT EXISTS customers (
     customer_id INTEGER PRIMARY KEY,
@@ -29,41 +23,35 @@ CREATE TABLE IF NOT EXISTS customers (
 CREATE TABLE IF NOT EXISTS orders (
     order_id INTEGER PRIMARY KEY,
     customer_id INT NOT NULL,
-    cookie_id INT NOT NULL,
     order_date DATE NOT NULL DEFAULT CURRENT_DATE CHECK (order_date >= CURRENT_DATE),
-    FOREIGN KEY (customer_id) REFERENCES customers(customer_id),
-    FOREIGN KEY (cookie_id) REFERENCES cookies(cookie_id)
+    expected_delivery_date DATE NOT NULL,
+    FOREIGN KEY (customer_id) REFERENCES customers(customer_id)
+);
+
+CREATE TABLE IF NOT EXISTS order_spec (
+    nbr_pallets INTEGER NOT NULL,
+    order_id INTEGER NOT NULL,
+    cookie_id INTEGER NOT NULL,
+    FOREIGN KEY (order_id) REFERENCES orders(order_id),
+    FOREIGN KEY (cookie_id) REFERENCES cookies(cookie_id),
+    PRIMARY KEY (order_id, cookie_id)
 );
 
 --------------------------------------------
--- Raw materials, ingredients and recipes
+-- Cookies, raw_materials and recipes
 --------------------------------------------
 -- Notes: the unit type can be defined in terms 
 -- of volume or weight instead. Here we choose 
 -- to use static si-prefixes in relevant tables.
 
--- What types of ingredients do we handle. 
--- Not currently used, but kept as an example.
-CREATE TABLE IF NOT EXISTS ingredients (
-    ingredient_id INTEGER PRIMARY KEY,
-    ingredient_name VARCHAR(50) NOT NULL UNIQUE,
-    preferred_unit VARCHAR(50) NOT NULL CHECK (preferred_unit IN ('g', 'ml'))
+-- Holds the different types of cookies we can make.
+CREATE TABLE IF NOT EXISTS cookies (
+    cookie_id INTEGER PRIMARY KEY,
+    cookie_name VARCHAR(50) NOT NULL UNIQUE
 );
 
--- What ingredients are in what cookies?
--- Glues together the cookies and ingredients, a 'recipe'.
-CREATE TABLE IF NOT EXISTS recipe_contents (
-    cookie_id INT NOT NULL,
-    ingredient_id INT NOT NULL,
-    quantity INT NOT NULL,
-    unit VARCHAR(50) NOT NULL CHECK (unit IN ('g', 'ml')),
-    PRIMARY KEY (cookie_id, ingredient_id),
-    FOREIGN KEY (cookie_id) REFERENCES cookies(cookie_id),
-    FOREIGN KEY (ingredient_id) REFERENCES ingredients(ingredient_id)
-);
-
--- Describes ingredients and stock.
--- This should reference the ingredients table, but we'll keep it simple for now.
+-- What types of raw_materials do we handle. 
+-- raw_materials quantity tells us amount in stock
 CREATE TABLE IF NOT EXISTS raw_materials (
     ingredient_id INTEGER PRIMARY KEY,
     ingredient_name VARCHAR(50) NOT NULL UNIQUE,
@@ -71,7 +59,19 @@ CREATE TABLE IF NOT EXISTS raw_materials (
     unit VARCHAR(50) NOT NULL CHECK (unit IN ('g', 'ml'))
 );
 
--- When did we get the ingredients?
+-- What raw_materials are in what cookies?
+-- Glues together the cookies and raw_materials, a 'recipe'.
+CREATE TABLE IF NOT EXISTS recipe_contents (
+    cookie_id INT NOT NULL,
+    ingredient_id INT NOT NULL,
+    quantity INT NOT NULL,
+    unit VARCHAR(50) NOT NULL CHECK (unit IN ('g', 'ml')),
+    PRIMARY KEY (cookie_id, ingredient_id),
+    FOREIGN KEY (cookie_id) REFERENCES cookies(cookie_id),
+    FOREIGN KEY (ingredient_id) REFERENCES raw_materials(ingredient_id)
+);
+
+-- When did we get the raw_materials?
 CREATE TABLE IF NOT EXISTS raw_materials_deliveries (
     delivery_id INTEGER PRIMARY KEY,
     ingredient_id INT NOT NULL,
@@ -90,11 +90,9 @@ CREATE TABLE IF NOT EXISTS raw_materials_deliveries (
 CREATE TABLE IF NOT EXISTS pallets (
     pallet_id INTEGER PRIMARY KEY,
     cookie_id INT NOT NULL,
-    order_id INT, -- This should be not null
     status VARCHAR(50) NOT NULL CHECK (status IN ('freezer', 'delivered', 'blocked')),
-    production_date DATE NOT NULL,
+    production_date DATE NOT NULL DEFAULT NOW,
     FOREIGN KEY (cookie_id) REFERENCES cookies(cookie_id)
-    FOREIGN KEY (order_id) REFERENCES orders(order_id)
 );
 
 -- Connects pallets to orders
@@ -116,7 +114,6 @@ CREATE VIEW IF NOT EXISTS pallets_view AS
 SELECT 
     pallets.pallet_id,
     cookie_name,
-    pallets.order_id,
     status,
     production_date,
     delivery_date