def post(self, request, *args, **kwargs):
"""
Respond to a barcode POST request
"""
data = request.data
if 'barcode' not in data:
raise ValidationError(
{'barcode': _('Must provide barcode_data parameter')})
plugins = load_barcode_plugins()
barcode_data = data.get('barcode')
# Look for a barcode plugin which knows how to deal with this barcode
plugin = None
for plugin_class in plugins:
plugin_instance = plugin_class(barcode_data)
if plugin_instance.validate():
plugin = plugin_instance
break
match_found = False
response = {}
response['barcode_data'] = barcode_data
# A plugin has been found!
if plugin is not None:
# Try to associate with a stock item
item = plugin.getStockItem()
if item is None:
item = plugin.getStockItemByHash()
if item is not None:
response['stockitem'] = plugin.renderStockItem(item)
response['url'] = reverse('stock-item-detail',
kwargs={'pk': item.id})
match_found = True
# Try to associate with a stock location
loc = plugin.getStockLocation()
if loc is not None:
response['stocklocation'] = plugin.renderStockLocation(loc)
response['url'] = reverse('stock-location-detail',
kwargs={'pk': loc.id})
match_found = True
# Try to associate with a part
part = plugin.getPart()
if part is not None:
response['part'] = plugin.renderPart(part)
response['url'] = reverse('part-detail',
kwargs={'pk': part.id})
match_found = True
response['hash'] = plugin.hash()
response['plugin'] = plugin.name
# No plugin is found!
# However, the hash of the barcode may still be associated with a StockItem!
else:
hash = hash_barcode(barcode_data)
response['hash'] = hash
response['plugin'] = None
# Try to look for a matching StockItem
try:
item = StockItem.objects.get(uid=hash)
serializer = StockItemSerializer(item,
part_detail=True,
location_detail=True,
supplier_part_detail=True)
response['stockitem'] = serializer.data
response['url'] = reverse('stock-item-detail',
kwargs={'pk': item.id})
match_found = True
except StockItem.DoesNotExist:
pass
if not match_found:
response['error'] = _('No match found for barcode data')
else:
response['success'] = _('Match found for barcode data')
return Response(response)
def post(self, request, *args, **kwargs):
data = request.data
if 'barcode' not in data:
raise ValidationError(
{'barcode': _('Must provide barcode_data parameter')})
if 'stockitem' not in data:
raise ValidationError(
{'stockitem': _('Must provide stockitem parameter')})
barcode_data = data['barcode']
try:
item = StockItem.objects.get(pk=data['stockitem'])
except (ValueError, StockItem.DoesNotExist):
raise ValidationError(
{'stockitem': _('No matching stock item found')})
plugins = load_barcode_plugins()
plugin = None
for plugin_class in plugins:
plugin_instance = plugin_class(barcode_data)
if plugin_instance.validate():
plugin = plugin_instance
break
match_found = False
response = {}
response['barcode_data'] = barcode_data
# Matching plugin was found
if plugin is not None:
hash = plugin.hash()
response['hash'] = hash
response['plugin'] = plugin.name
# Ensure that the barcode does not already match a database entry
if plugin.getStockItem() is not None:
match_found = True
response['error'] = _(
'Barcode already matches StockItem object')
if plugin.getStockLocation() is not None:
match_found = True
response['error'] = _(
'Barcode already matches StockLocation object')
if plugin.getPart() is not None:
match_found = True
response['error'] = _('Barcode already matches Part object')
if not match_found:
item = plugin.getStockItemByHash()
if item is not None:
response['error'] = _(
'Barcode hash already matches StockItem object')
match_found = True
else:
hash = hash_barcode(barcode_data)
response['hash'] = hash
response['plugin'] = None
# Lookup stock item by hash
try:
item = StockItem.objects.get(uid=hash)
response['error'] = _(
'Barcode hash already matches StockItem object')
match_found = True
except StockItem.DoesNotExist:
pass
if not match_found:
response['success'] = _('Barcode associated with StockItem')
# Save the barcode hash
item.uid = response['hash']
item.save()
serializer = StockItemSerializer(item,
part_detail=True,
location_detail=True,
supplier_part_detail=True)
response['stockitem'] = serializer.data
return Response(response)