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Annotate with "unallocated_stock" quantity (calculated field)

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This commit is contained in:
Oliver Walters 2022-04-01 17:44:05 +11:00
parent 94068f6bad
commit bf6a9b69ce
1 changed files with 13 additions and 2 deletions
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15
InvenTree/part/serializers.py
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@ -7,7 +7,7 @@ from decimal import Decimal
from django.urls import reverse_lazy
from django.db import models, transaction
from django.db.models import Q
from django.db.models import ExpressionWrapper, F, Q
from django.db.models.functions import Coalesce
from django.utils.translation import ugettext_lazy as _
@ -375,7 +375,7 @@ class PartSerializer(InvenTreeModelSerializer):
"""
so_allocation_filter = Q(
line__order__status__in=SalesOrderStatus.OPEN, # LineItem points to an OPEN order
shipment=None, # Allocated item has *not* been shipped out
shipment__shipment_date=None, # Allocated item has *not* been shipped out
)
queryset = queryset.annotate(
@ -402,6 +402,15 @@ class PartSerializer(InvenTreeModelSerializer):
)
)
# Annotate with the total 'available stock' quantity
# This is the current stock, minus any allocations
queryset = queryset.annotate(
unallocated_stock=ExpressionWrapper(
F('in_stock') - F('allocated_to_sales_orders') - F('allocated_to_build_orders'),
output_field=models.DecimalField(),
)
)
return queryset
def get_starred(self, part):
@ -417,6 +426,7 @@ class PartSerializer(InvenTreeModelSerializer):
# Calculated fields
allocated_to_build_orders = serializers.FloatField(read_only=True)
allocated_to_sales_orders = serializers.FloatField(read_only=True)
unallocated_stock = serializers.FloatField(read_only=True)
building = serializers.FloatField(read_only=True)
in_stock = serializers.FloatField(read_only=True)
ordering = serializers.FloatField(read_only=True)
@ -472,6 +482,7 @@ class PartSerializer(InvenTreeModelSerializer):
'suppliers',
'thumbnail',
'trackable',
'unallocated_stock',
'units',
'variant_of',
'virtual',