erpnext_custom/README.md

# erpnext_custom

Custom App für NEXTErp mit zuverlässigem Sync von Custom Fields zu WooCommerce (ACF / Meta Data).

## Funktionen
- Sync beliebiger Custom Fields aus ERPNext-Item nach WooCommerce
- Verwendung von `meta_data` (stabiler als ACF-Block)
- Manueller Sync-Button im Item-Formular

## Installation

### 1. App erstellen

```bash
cd ~/frappe-bench
bench new-app erpnext_custom
```

Bei den Fragen:

App Title: NEXTErp Custom
App Description: WooCommerce ACF Custom Fields Sync
App Publisher: Jens Falk
App Email: service@falk.plus

```bash
cd ~/frappe-bench/apps/erpnext_custom/erpnext_custom
```
```bash
cat > api.py << 'EOF'
import frappe
import requests
from frappe import _

@frappe.whitelist()
def sync_custom_fields_to_woocommerce(item_code):
    """Sync Custom Fields via meta_data nach WooCommerce"""
    
    frappe.msgprint("Sync gestartet fuer Artikel " + str(item_code), indicator="blue", alert=1)
    
    doc = frappe.get_doc("Item", item_code)
    
    if not doc.get("woocommerce_servers"):
        frappe.msgprint("Kein WooCommerce Server verknuepft", indicator="red", alert=1)
        return False
    
    # Mappings aus DocType laden
    mappings = frappe.get_all("WooCommerce ACF Mapping", 
                              filters={"enabled": 1}, 
                              fields=["erp_field", "acf_field"])
    
    field_mapping = {m.erp_field: m.acf_field for m in mappings if m.erp_field and m.acf_field}
    
    if not field_mapping:
        frappe.msgprint("KEIN Mapping gefunden! Bitte im DocType 'WooCommerce ACF Mapping' Eintraege anlegen.", indicator="red", alert=1)
        return False
    
    for wc_link in doc.woocommerce_servers:
        if not wc_link.get("woocommerce_id"):
            continue
            
        try:
            wc_server = frappe.get_doc("WooCommerce Server", wc_link.woocommerce_server)
            
            api_key = wc_server.get("api_consumer_key")
            api_secret = wc_server.get("api_consumer_secret")
            
            if not api_key or not api_secret:
                continue
            
            base_url = wc_server.woocommerce_server_url.rstrip("/")
            if not base_url.endswith("/wp-json/wc/v3"):
                base_url += "/wp-json/wc/v3"
            
            url = base_url + "/products/" + str(wc_link.woocommerce_id)
            auth = (api_key, api_secret)
            
            # Produkt holen
            resp = requests.get(url, auth=auth, timeout=15)
            product = resp.json()
            
            meta_data = product.get("meta_data", [])
            
            for erp_field, acf_field in field_mapping.items():
                value = doc.get(erp_field) or ""
                meta_data = [m for m in meta_data if m.get("key") != acf_field]
                meta_data.append({"key": acf_field, "value": value})
            
            payload = {"meta_data": meta_data}
            
            update_resp = requests.put(url, json=payload, auth=auth, timeout=15)
            update_resp.raise_for_status()
            
            frappe.msgprint("Custom Fields erfolgreich gesendet!", indicator="green", alert=1)
            
        except Exception as e:
            frappe.msgprint("Fehler: " + str(e), indicator="red", alert=1)
    
    return True
    EOF

```
Danach ausführen
```bash
bench restart
```