c19483ea81
- Wails project setup (Go + React-TS) - SQLite schema (allergens, additives, products, week_plans, plan_entries, special_days) - 14 EU allergens (LMIV 1169/2011) - 24 German food additives - 99 products imported from Excel with allergen/additive mappings - Full Wails bindings (CRUD for products, week plans, entries, special days) - OTA updater stub (version check against HTTPS endpoint) - Pure Go SQLite (no CGO) for easy Windows cross-compilation
127 lines
2.9 KiB
Go
127 lines
2.9 KiB
Go
package main
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import (
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"fmt"
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"os"
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"path/filepath"
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"github.com/jmoiron/sqlx"
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_ "modernc.org/sqlite"
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)
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var db *sqlx.DB
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// InitDatabase initialisiert die SQLite-Datenbank
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func InitDatabase() error {
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// DB-Datei im User-Home-Verzeichnis
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homeDir, err := os.UserHomeDir()
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if err != nil {
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return fmt.Errorf("failed to get user home directory: %w", err)
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}
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dbPath := filepath.Join(homeDir, "speiseplan.db")
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// Verbindung zur Datenbank herstellen
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database, err := sqlx.Open("sqlite", dbPath)
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if err != nil {
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return fmt.Errorf("failed to open database: %w", err)
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}
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db = database
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// Schema erstellen
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if err := createSchema(); err != nil {
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return fmt.Errorf("failed to create schema: %w", err)
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}
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// Seed-Daten einfügen
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if err := SeedDatabase(); err != nil {
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return fmt.Errorf("failed to seed database: %w", err)
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}
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return nil
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}
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// createSchema erstellt das Datenbankschema
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func createSchema() error {
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schema := `
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-- 14 EU-Allergene (gesetzlich vorgeschrieben, LMIV Verordnung)
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CREATE TABLE IF NOT EXISTS allergens (
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id TEXT PRIMARY KEY,
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name TEXT NOT NULL,
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category TEXT NOT NULL DEFAULT 'allergen'
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);
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-- Zusatzstoffe (deutsche Lebensmittelkennzeichnung)
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CREATE TABLE IF NOT EXISTS additives (
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id TEXT PRIMARY KEY,
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name TEXT NOT NULL
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);
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-- Produkte
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CREATE TABLE IF NOT EXISTS products (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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name TEXT NOT NULL UNIQUE,
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multiline BOOLEAN DEFAULT FALSE
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);
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-- Produkt-Allergen-Zuordnung (n:m)
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CREATE TABLE IF NOT EXISTS product_allergens (
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product_id INTEGER REFERENCES products(id) ON DELETE CASCADE,
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allergen_id TEXT REFERENCES allergens(id),
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PRIMARY KEY (product_id, allergen_id)
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);
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-- Produkt-Zusatzstoff-Zuordnung (n:m)
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CREATE TABLE IF NOT EXISTS product_additives (
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product_id INTEGER REFERENCES products(id) ON DELETE CASCADE,
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additive_id TEXT REFERENCES additives(id),
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PRIMARY KEY (product_id, additive_id)
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);
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-- Wochenpläne
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CREATE TABLE IF NOT EXISTS week_plans (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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year INTEGER NOT NULL,
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week INTEGER NOT NULL,
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created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
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UNIQUE(year, week)
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);
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-- Einträge im Wochenplan
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CREATE TABLE IF NOT EXISTS plan_entries (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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week_plan_id INTEGER REFERENCES week_plans(id) ON DELETE CASCADE,
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day INTEGER NOT NULL,
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meal TEXT NOT NULL,
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slot INTEGER NOT NULL DEFAULT 0,
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product_id INTEGER REFERENCES products(id),
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custom_text TEXT,
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group_label TEXT
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);
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-- Sondertage
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CREATE TABLE IF NOT EXISTS special_days (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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week_plan_id INTEGER REFERENCES week_plans(id) ON DELETE CASCADE,
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day INTEGER NOT NULL,
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type TEXT NOT NULL,
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label TEXT
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);`
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_, err := db.Exec(schema)
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return err
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}
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// GetDB gibt die Datenbankverbindung zurück
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func GetDB() *sqlx.DB {
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return db
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}
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// CloseDatabase schließt die Datenbankverbindung
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func CloseDatabase() error {
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if db != nil {
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return db.Close()
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}
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return nil
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} |