InvenTree/InvenTree/part/apps.py

62 lines
2.0 KiB
Python

"""part app specification"""
import logging
from django.apps import AppConfig
from django.db.utils import OperationalError, ProgrammingError
from InvenTree.ready import canAppAccessDatabase, isImportingData
logger = logging.getLogger("inventree")
class PartConfig(AppConfig):
"""Config class for the 'part' app"""
name = 'part'
def ready(self):
"""This function is called whenever the Part app is loaded."""
if canAppAccessDatabase():
self.update_trackable_status()
self.reset_part_pricing_flags()
def update_trackable_status(self):
"""Check for any instances where a trackable part is used in the BOM for a non-trackable part.
In such a case, force the top-level part to be trackable too.
"""
from .models import BomItem
try:
items = BomItem.objects.filter(part__trackable=False, sub_part__trackable=True)
for item in items:
logger.info(f"Marking part '{item.part.name}' as trackable")
item.part.trackable = True
item.part.clean()
item.part.save()
except (OperationalError, ProgrammingError): # pragma: no cover
# Exception if the database has not been migrated yet
pass
def reset_part_pricing_flags(self):
"""Performed on startup, to ensure that all pricing objects are in a "good" state.
Prevents issues with state machine if the server is restarted mid-update
"""
from .models import PartPricing
if isImportingData():
return
items = PartPricing.objects.filter(scheduled_for_update=True)
if items.count() > 0:
# Find any pricing objects which have the 'scheduled_for_update' flag set
print(f"Resetting update flags for {items.count()} pricing objects...")
for pricing in items:
pricing.scheduled_for_update = False
pricing.save()