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Improve query speed when calculating how many parts are on order

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This commit is contained in:
Oliver Walters 2020-03-26 17:31:59 +11:00
parent 57123283f4
commit 41bbbdcd43
1 changed files with 9 additions and 1 deletions
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InvenTree/part/models.py
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@ -919,7 +919,15 @@ class Part(models.Model):
def on_order(self): def on_order(self):
""" Return the total number of items on order for this part. """ """ Return the total number of items on order for this part. """
return sum([part.on_order() for part in self.supplier_parts.all().prefetch_related('purchase_order_line_items')]) orders = self.supplier_parts.filter(purchase_order_line_items__order__status__in=OrderStatus.OPEN).aggregate(
quantity=Sum('purchase_order_line_items__quantity'))
quantity = orders['quantity']
if quantity is None:
quantity = 0
return quantity
def get_parameters(self): def get_parameters(self):
""" Return all parameters for this part, ordered by name """ """ Return all parameters for this part, ordered by name """