Files
food-ai/backend/migrations/001_initial_schema.sql
dbastrikin 61feb91bba feat: core schema redesign — dishes, structured recipes, cuisines, tags (iteration 7)
Replaces the flat JSONB-based recipe schema with a normalized relational model:

Schema (migrations consolidated to 001_initial_schema + 002_seed_data):
- New: dishes, dish_translations, dish_tags — canonical dish catalog
- New: cuisines, tags, dish_categories with _translations tables + full seed data
- New: recipe_ingredients, recipe_steps with _translations (replaces JSONB blobs)
- New: user_saved_recipes thin bookmark (drops saved_recipes + saved_recipe_translations)
- New: product_ingredients M2M table
- recipes: now a cooking variant of a dish (dish_id FK, no title/JSONB columns)
- recipe_translations: repurposed to per-language notes only
- products: mapping_id → primary_ingredient_id
- menu_items: recipe_id FK → recipes; adds dish_id
- meal_diary: adds dish_id, recipe_id → recipes, portion_g

Backend (Go):
- New packages: internal/cuisine, internal/tag, internal/dish (registry + handler + repo)
- New GET /cuisines, GET /tags (public), GET /dishes, GET /dishes/{id}, GET /recipes/{id}
- recipe, savedrecipe, menu, diary, product, ingredient packages updated for new schema

Flutter:
- New models: Cuisine, Tag; new providers: cuisineNamesProvider, tagNamesProvider
- recipe.dart: RecipeIngredient gains unit_code + effectiveUnit getter
- saved_recipe.dart: thin model, manual fromJson, computed nutrition getter
- diary_entry.dart: adds dishId, recipeId, portionG
- recipe_detail_screen.dart: localized cuisine/tag names via providers

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-03-15 18:01:24 +02:00

453 lines
19 KiB
PL/PgSQL

-- +goose Up
-- ---------------------------------------------------------------------------
-- Extensions
-- ---------------------------------------------------------------------------
CREATE EXTENSION IF NOT EXISTS pgcrypto;
CREATE EXTENSION IF NOT EXISTS pg_trgm;
-- ---------------------------------------------------------------------------
-- UUID v7 generator (time-ordered, millisecond precision).
-- Structure: 48-bit unix_ts_ms | 4-bit version (0111) | 12-bit rand_a | 2-bit variant (10) | 62-bit rand_b
-- ---------------------------------------------------------------------------
CREATE OR REPLACE FUNCTION uuid_generate_v7()
RETURNS uuid
AS $$
DECLARE
unix_ts_ms bytea;
uuid_bytes bytea;
BEGIN
-- 48-bit Unix timestamp in milliseconds.
-- int8send produces 8 big-endian bytes; skip the first 2 zero bytes to get 6.
unix_ts_ms = substring(int8send(floor(extract(epoch from clock_timestamp()) * 1000)::bigint) from 3);
-- Use a random v4 UUID as the source of random bits for rand_a and rand_b.
uuid_bytes = uuid_send(gen_random_uuid());
-- Overwrite bytes 0-5 with the timestamp (positions 1-6 in 1-indexed bytea).
uuid_bytes = overlay(uuid_bytes placing unix_ts_ms from 1 for 6);
-- Set version nibble (bits 48-51) to 0111 (7).
uuid_bytes = set_bit(uuid_bytes, 48, 0);
uuid_bytes = set_bit(uuid_bytes, 49, 1);
uuid_bytes = set_bit(uuid_bytes, 50, 1);
uuid_bytes = set_bit(uuid_bytes, 51, 1);
-- Variant bits (64-65) stay at 10 as inherited from gen_random_uuid().
RETURN encode(uuid_bytes, 'hex')::uuid;
END
$$ LANGUAGE plpgsql VOLATILE;
-- ---------------------------------------------------------------------------
-- Enums
-- ---------------------------------------------------------------------------
CREATE TYPE user_plan AS ENUM ('free', 'paid');
CREATE TYPE user_gender AS ENUM ('male', 'female');
CREATE TYPE user_goal AS ENUM ('lose', 'maintain', 'gain');
CREATE TYPE activity_level AS ENUM ('low', 'moderate', 'high');
CREATE TYPE recipe_source AS ENUM ('spoonacular', 'ai', 'user');
CREATE TYPE recipe_difficulty AS ENUM ('easy', 'medium', 'hard');
-- ---------------------------------------------------------------------------
-- users
-- ---------------------------------------------------------------------------
CREATE TABLE users (
id UUID PRIMARY KEY DEFAULT uuid_generate_v7(),
firebase_uid VARCHAR(128) NOT NULL UNIQUE,
email VARCHAR(255) NOT NULL,
name VARCHAR(255) NOT NULL DEFAULT '',
avatar_url TEXT,
height_cm SMALLINT,
weight_kg DECIMAL(5,2),
date_of_birth DATE,
gender user_gender,
activity activity_level,
goal user_goal,
daily_calories INTEGER,
plan user_plan NOT NULL DEFAULT 'free',
preferences JSONB NOT NULL DEFAULT '{}'::jsonb,
refresh_token TEXT,
token_expires_at TIMESTAMPTZ,
created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
);
CREATE INDEX idx_users_firebase_uid ON users (firebase_uid);
CREATE INDEX idx_users_email ON users (email);
-- ---------------------------------------------------------------------------
-- languages
-- ---------------------------------------------------------------------------
CREATE TABLE languages (
code VARCHAR(10) PRIMARY KEY,
native_name TEXT NOT NULL,
english_name TEXT NOT NULL,
is_active BOOLEAN NOT NULL DEFAULT true,
sort_order SMALLINT NOT NULL DEFAULT 0
);
-- ---------------------------------------------------------------------------
-- units + unit_translations
-- ---------------------------------------------------------------------------
CREATE TABLE units (
code VARCHAR(20) PRIMARY KEY,
sort_order SMALLINT NOT NULL DEFAULT 0
);
CREATE TABLE unit_translations (
unit_code VARCHAR(20) NOT NULL REFERENCES units(code) ON DELETE CASCADE,
lang VARCHAR(10) NOT NULL,
name TEXT NOT NULL,
PRIMARY KEY (unit_code, lang)
);
-- ---------------------------------------------------------------------------
-- ingredient_categories + translations
-- ---------------------------------------------------------------------------
CREATE TABLE ingredient_categories (
slug VARCHAR(50) PRIMARY KEY,
sort_order SMALLINT NOT NULL DEFAULT 0
);
CREATE TABLE ingredient_category_translations (
category_slug VARCHAR(50) NOT NULL REFERENCES ingredient_categories(slug) ON DELETE CASCADE,
lang VARCHAR(10) NOT NULL,
name TEXT NOT NULL,
PRIMARY KEY (category_slug, lang)
);
-- ---------------------------------------------------------------------------
-- ingredients (canonical catalog — formerly ingredient_mappings)
-- ---------------------------------------------------------------------------
CREATE TABLE ingredients (
id UUID PRIMARY KEY DEFAULT uuid_generate_v7(),
canonical_name VARCHAR(255) NOT NULL,
category VARCHAR(50) REFERENCES ingredient_categories(slug),
default_unit VARCHAR(20) REFERENCES units(code),
calories_per_100g DECIMAL(8,2),
protein_per_100g DECIMAL(8,2),
fat_per_100g DECIMAL(8,2),
carbs_per_100g DECIMAL(8,2),
fiber_per_100g DECIMAL(8,2),
storage_days INTEGER,
created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
updated_at TIMESTAMPTZ NOT NULL DEFAULT now(),
CONSTRAINT uq_ingredient_canonical_name UNIQUE (canonical_name)
);
CREATE INDEX idx_ingredients_canonical_name ON ingredients (canonical_name);
CREATE INDEX idx_ingredients_category ON ingredients (category);
-- ---------------------------------------------------------------------------
-- ingredient_translations
-- ---------------------------------------------------------------------------
CREATE TABLE ingredient_translations (
ingredient_id UUID NOT NULL REFERENCES ingredients(id) ON DELETE CASCADE,
lang VARCHAR(10) NOT NULL,
name VARCHAR(255) NOT NULL,
PRIMARY KEY (ingredient_id, lang)
);
CREATE INDEX idx_ingredient_translations_ingredient_id ON ingredient_translations (ingredient_id);
-- ---------------------------------------------------------------------------
-- ingredient_aliases (relational, replaces JSONB aliases column)
-- ---------------------------------------------------------------------------
CREATE TABLE ingredient_aliases (
ingredient_id UUID NOT NULL REFERENCES ingredients(id) ON DELETE CASCADE,
lang VARCHAR(10) NOT NULL,
alias TEXT NOT NULL,
PRIMARY KEY (ingredient_id, lang, alias)
);
CREATE INDEX idx_ingredient_aliases_lookup ON ingredient_aliases (ingredient_id, lang);
CREATE INDEX idx_ingredient_aliases_trgm ON ingredient_aliases USING GIN (alias gin_trgm_ops);
-- ---------------------------------------------------------------------------
-- cuisines + cuisine_translations
-- ---------------------------------------------------------------------------
CREATE TABLE cuisines (
slug VARCHAR(50) PRIMARY KEY,
name TEXT NOT NULL,
sort_order SMALLINT NOT NULL DEFAULT 0
);
CREATE TABLE cuisine_translations (
cuisine_slug VARCHAR(50) NOT NULL REFERENCES cuisines(slug) ON DELETE CASCADE,
lang VARCHAR(10) NOT NULL,
name TEXT NOT NULL,
PRIMARY KEY (cuisine_slug, lang)
);
-- ---------------------------------------------------------------------------
-- tags + tag_translations
-- ---------------------------------------------------------------------------
CREATE TABLE tags (
slug VARCHAR(100) PRIMARY KEY,
name TEXT NOT NULL,
sort_order SMALLINT NOT NULL DEFAULT 0
);
CREATE TABLE tag_translations (
tag_slug VARCHAR(100) NOT NULL REFERENCES tags(slug) ON DELETE CASCADE,
lang VARCHAR(10) NOT NULL,
name TEXT NOT NULL,
PRIMARY KEY (tag_slug, lang)
);
-- ---------------------------------------------------------------------------
-- dish_categories + dish_category_translations
-- ---------------------------------------------------------------------------
CREATE TABLE dish_categories (
slug VARCHAR(50) PRIMARY KEY,
name TEXT NOT NULL,
sort_order SMALLINT NOT NULL DEFAULT 0
);
CREATE TABLE dish_category_translations (
category_slug VARCHAR(50) NOT NULL REFERENCES dish_categories(slug) ON DELETE CASCADE,
lang VARCHAR(10) NOT NULL,
name TEXT NOT NULL,
PRIMARY KEY (category_slug, lang)
);
-- ---------------------------------------------------------------------------
-- dishes + dish_translations + dish_tags
-- ---------------------------------------------------------------------------
CREATE TABLE dishes (
id UUID PRIMARY KEY DEFAULT uuid_generate_v7(),
cuisine_slug VARCHAR(50) REFERENCES cuisines(slug) ON DELETE SET NULL,
category_slug VARCHAR(50) REFERENCES dish_categories(slug) ON DELETE SET NULL,
name TEXT NOT NULL,
description TEXT,
image_url TEXT,
avg_rating DECIMAL(3,2) NOT NULL DEFAULT 0.0,
review_count INTEGER NOT NULL DEFAULT 0,
created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
);
CREATE INDEX idx_dishes_cuisine ON dishes (cuisine_slug);
CREATE INDEX idx_dishes_category ON dishes (category_slug);
CREATE INDEX idx_dishes_rating ON dishes (avg_rating DESC);
CREATE TABLE dish_translations (
dish_id UUID NOT NULL REFERENCES dishes(id) ON DELETE CASCADE,
lang VARCHAR(10) NOT NULL,
name TEXT NOT NULL,
description TEXT,
PRIMARY KEY (dish_id, lang)
);
CREATE TABLE dish_tags (
dish_id UUID NOT NULL REFERENCES dishes(id) ON DELETE CASCADE,
tag_slug VARCHAR(100) NOT NULL REFERENCES tags(slug) ON DELETE CASCADE,
PRIMARY KEY (dish_id, tag_slug)
);
-- ---------------------------------------------------------------------------
-- recipes (one cooking variant of a dish)
-- ---------------------------------------------------------------------------
CREATE TABLE recipes (
id UUID PRIMARY KEY DEFAULT uuid_generate_v7(),
dish_id UUID NOT NULL REFERENCES dishes(id) ON DELETE CASCADE,
source recipe_source NOT NULL DEFAULT 'ai',
difficulty recipe_difficulty,
prep_time_min INTEGER,
cook_time_min INTEGER,
servings SMALLINT,
calories_per_serving DECIMAL(8,2),
protein_per_serving DECIMAL(8,2),
fat_per_serving DECIMAL(8,2),
carbs_per_serving DECIMAL(8,2),
fiber_per_serving DECIMAL(8,2),
created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
);
CREATE INDEX idx_recipes_dish_id ON recipes (dish_id);
CREATE INDEX idx_recipes_difficulty ON recipes (difficulty);
CREATE INDEX idx_recipes_prep_time ON recipes (prep_time_min);
CREATE INDEX idx_recipes_calories ON recipes (calories_per_serving);
CREATE INDEX idx_recipes_source ON recipes (source);
-- ---------------------------------------------------------------------------
-- recipe_translations (per-language cooking notes only)
-- ---------------------------------------------------------------------------
CREATE TABLE recipe_translations (
recipe_id UUID NOT NULL REFERENCES recipes(id) ON DELETE CASCADE,
lang VARCHAR(10) NOT NULL,
notes TEXT,
PRIMARY KEY (recipe_id, lang)
);
-- ---------------------------------------------------------------------------
-- recipe_ingredients + recipe_ingredient_translations
-- ---------------------------------------------------------------------------
CREATE TABLE recipe_ingredients (
id UUID PRIMARY KEY DEFAULT uuid_generate_v7(),
recipe_id UUID NOT NULL REFERENCES recipes(id) ON DELETE CASCADE,
ingredient_id UUID REFERENCES ingredients(id) ON DELETE SET NULL,
name TEXT NOT NULL,
amount DECIMAL(10,2) NOT NULL DEFAULT 0,
unit_code VARCHAR(20),
is_optional BOOLEAN NOT NULL DEFAULT false,
sort_order SMALLINT NOT NULL DEFAULT 0
);
CREATE INDEX idx_recipe_ingredients_recipe_id ON recipe_ingredients (recipe_id);
CREATE TABLE recipe_ingredient_translations (
ri_id UUID NOT NULL REFERENCES recipe_ingredients(id) ON DELETE CASCADE,
lang VARCHAR(10) NOT NULL,
name TEXT NOT NULL,
PRIMARY KEY (ri_id, lang)
);
-- ---------------------------------------------------------------------------
-- recipe_steps + recipe_step_translations
-- ---------------------------------------------------------------------------
CREATE TABLE recipe_steps (
id UUID PRIMARY KEY DEFAULT uuid_generate_v7(),
recipe_id UUID NOT NULL REFERENCES recipes(id) ON DELETE CASCADE,
step_number SMALLINT NOT NULL,
timer_seconds INTEGER,
image_url TEXT,
description TEXT NOT NULL,
UNIQUE (recipe_id, step_number)
);
CREATE INDEX idx_recipe_steps_recipe_id ON recipe_steps (recipe_id);
CREATE TABLE recipe_step_translations (
step_id UUID NOT NULL REFERENCES recipe_steps(id) ON DELETE CASCADE,
lang VARCHAR(10) NOT NULL,
description TEXT NOT NULL,
PRIMARY KEY (step_id, lang)
);
-- ---------------------------------------------------------------------------
-- products (user fridge / pantry items)
-- ---------------------------------------------------------------------------
CREATE TABLE products (
id UUID PRIMARY KEY DEFAULT uuid_generate_v7(),
user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
primary_ingredient_id UUID REFERENCES ingredients(id),
name TEXT NOT NULL,
quantity DECIMAL(10,2) NOT NULL DEFAULT 1,
unit TEXT NOT NULL DEFAULT 'pcs' REFERENCES units(code),
category TEXT,
storage_days INT NOT NULL DEFAULT 7,
added_at TIMESTAMPTZ NOT NULL DEFAULT now()
);
CREATE INDEX idx_products_user_id ON products (user_id);
-- ---------------------------------------------------------------------------
-- product_ingredients (M2M: composite product ↔ ingredients)
-- ---------------------------------------------------------------------------
CREATE TABLE product_ingredients (
product_id UUID NOT NULL REFERENCES products(id) ON DELETE CASCADE,
ingredient_id UUID NOT NULL REFERENCES ingredients(id) ON DELETE CASCADE,
amount_per_100g DECIMAL(10,2),
PRIMARY KEY (product_id, ingredient_id)
);
-- ---------------------------------------------------------------------------
-- user_saved_recipes (thin bookmark — content lives in dishes + recipes)
-- ---------------------------------------------------------------------------
CREATE TABLE user_saved_recipes (
id UUID PRIMARY KEY DEFAULT uuid_generate_v7(),
user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
recipe_id UUID NOT NULL REFERENCES recipes(id) ON DELETE CASCADE,
saved_at TIMESTAMPTZ NOT NULL DEFAULT now(),
UNIQUE (user_id, recipe_id)
);
CREATE INDEX idx_user_saved_recipes_user_id ON user_saved_recipes (user_id, saved_at DESC);
-- ---------------------------------------------------------------------------
-- menu_plans + menu_items + shopping_lists
-- ---------------------------------------------------------------------------
CREATE TABLE menu_plans (
id UUID PRIMARY KEY DEFAULT uuid_generate_v7(),
user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
week_start DATE NOT NULL,
created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
UNIQUE (user_id, week_start)
);
CREATE TABLE menu_items (
id UUID PRIMARY KEY DEFAULT uuid_generate_v7(),
menu_plan_id UUID NOT NULL REFERENCES menu_plans(id) ON DELETE CASCADE,
day_of_week INT NOT NULL CHECK (day_of_week BETWEEN 1 AND 7),
meal_type TEXT NOT NULL CHECK (meal_type IN ('breakfast','lunch','dinner')),
recipe_id UUID REFERENCES recipes(id) ON DELETE SET NULL,
dish_id UUID REFERENCES dishes(id) ON DELETE SET NULL,
recipe_data JSONB,
UNIQUE (menu_plan_id, day_of_week, meal_type)
);
CREATE TABLE shopping_lists (
id UUID PRIMARY KEY DEFAULT uuid_generate_v7(),
user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
menu_plan_id UUID REFERENCES menu_plans(id) ON DELETE CASCADE,
items JSONB NOT NULL DEFAULT '[]',
generated_at TIMESTAMPTZ NOT NULL DEFAULT now(),
UNIQUE (user_id, menu_plan_id)
);
-- ---------------------------------------------------------------------------
-- meal_diary
-- ---------------------------------------------------------------------------
CREATE TABLE meal_diary (
id UUID PRIMARY KEY DEFAULT uuid_generate_v7(),
user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
date DATE NOT NULL,
meal_type TEXT NOT NULL,
name TEXT NOT NULL,
portions DECIMAL(5,2) NOT NULL DEFAULT 1,
calories DECIMAL(8,2),
protein_g DECIMAL(8,2),
fat_g DECIMAL(8,2),
carbs_g DECIMAL(8,2),
source TEXT NOT NULL DEFAULT 'manual',
dish_id UUID REFERENCES dishes(id) ON DELETE SET NULL,
recipe_id UUID REFERENCES recipes(id) ON DELETE SET NULL,
portion_g DECIMAL(10,2),
created_at TIMESTAMPTZ NOT NULL DEFAULT now()
);
CREATE INDEX idx_meal_diary_user_date ON meal_diary (user_id, date);
-- +goose Down
DROP TABLE IF EXISTS meal_diary;
DROP TABLE IF EXISTS shopping_lists;
DROP TABLE IF EXISTS menu_items;
DROP TABLE IF EXISTS menu_plans;
DROP TABLE IF EXISTS user_saved_recipes;
DROP TABLE IF EXISTS product_ingredients;
DROP TABLE IF EXISTS products;
DROP TABLE IF EXISTS recipe_step_translations;
DROP TABLE IF EXISTS recipe_steps;
DROP TABLE IF EXISTS recipe_ingredient_translations;
DROP TABLE IF EXISTS recipe_ingredients;
DROP TABLE IF EXISTS recipe_translations;
DROP TABLE IF EXISTS recipes;
DROP TABLE IF EXISTS dish_tags;
DROP TABLE IF EXISTS dish_translations;
DROP TABLE IF EXISTS dishes;
DROP TABLE IF EXISTS dish_category_translations;
DROP TABLE IF EXISTS dish_categories;
DROP TABLE IF EXISTS tag_translations;
DROP TABLE IF EXISTS tags;
DROP TABLE IF EXISTS cuisine_translations;
DROP TABLE IF EXISTS cuisines;
DROP TABLE IF EXISTS ingredient_aliases;
DROP TABLE IF EXISTS ingredient_translations;
DROP TABLE IF EXISTS ingredients;
DROP TABLE IF EXISTS ingredient_category_translations;
DROP TABLE IF EXISTS ingredient_categories;
DROP TABLE IF EXISTS unit_translations;
DROP TABLE IF EXISTS units;
DROP TABLE IF EXISTS languages;
DROP TABLE IF EXISTS users;
DROP TYPE IF EXISTS recipe_difficulty;
DROP TYPE IF EXISTS recipe_source;
DROP TYPE IF EXISTS activity_level;
DROP TYPE IF EXISTS user_goal;
DROP TYPE IF EXISTS user_gender;
DROP TYPE IF EXISTS user_plan;
DROP FUNCTION IF EXISTS uuid_generate_v7();
DROP EXTENSION IF EXISTS pg_trgm;