Added StockTracking model

InvenTree/InvenTree/urls.py

@@ -4,7 +4,7 @@ from django.contrib import admin
 from rest_framework.documentation import include_docs_urls
 
 from part.urls import part_urls, part_cat_urls, part_param_urls, part_param_template_urls
-from stock.urls import stock_urls, stock_loc_urls
+from stock.urls import stock_urls, stock_loc_urls, stock_track_urls
 from project.urls import prj_urls, prj_part_urls, prj_cat_urls
 from supplier.urls import cust_urls, manu_urls, supplier_part_urls, price_break_urls, supplier_urls
 from track.urls import unique_urls, part_track_urls
@@ -16,6 +16,7 @@ apipatterns = [
     # Stock URLs
     url(r'^stock/', include(stock_urls)),
     url(r'^stock-location/', include(stock_loc_urls)),
+    url(r'^stock-track/', include(stock_track_urls)),
 
     # Part URLs
     url(r'^part/', include(part_urls)),

InvenTree/stock/models.py

@@ -2,6 +2,7 @@ from __future__ import unicode_literals
 from django.utils.translation import ugettext as _
 from django.db import models
 
+from supplier.models import SupplierPart
 from part.models import Part
 from InvenTree.models import InvenTreeTree
 
@@ -18,6 +19,7 @@ class StockLocation(InvenTreeTree):
 
 class StockItem(models.Model):
     part = models.ForeignKey(Part, on_delete=models.CASCADE, related_name='locations')
+    supplier_part = models.ForeignKey(SupplierPart, blank=True, null=True, on_delete=models.SET_NULL)
     location = models.ForeignKey(StockLocation, on_delete=models.CASCADE)
     quantity = models.PositiveIntegerField()
     updated = models.DateField(auto_now=True)
@@ -50,6 +52,8 @@ class StockItem(models.Model):
         default=ITEM_IN_STOCK,
         choices=ITEM_STATUS_CODES.items())
 
+    notes = models.CharField(max_length=100, blank=True)
+
     # If stock item is incoming, an (optional) ETA field
     expected_arrival = models.DateField(null=True, blank=True)
 
@@ -58,3 +62,16 @@ class StockItem(models.Model):
             n=self.quantity,
             part=self.part.name,
             loc=self.location.name)
+
+
+class StockTracking(models.Model):
+    """ Tracks a single movement of stock
+    - Used to track stock being taken from a location
+    - Used to track stock being added to a location
+    - "Pending" flag shows that stock WILL be taken / added
+    """
+
+    item = models.ForeignKey(StockItem, on_delete=models.CASCADE, related_name='tracking')
+    quantity = models.IntegerField()
+    pending = models.BooleanField(default=False)
+    when = models.DateTimeField(auto_now=True)

InvenTree/stock/serializers.py

@@ -1,6 +1,6 @@
 from rest_framework import serializers
 
-from .models import StockItem, StockLocation
+from .models import StockItem, StockLocation, StockTracking
 
 
 class StockItemSerializer(serializers.HyperlinkedModelSerializer):
@@ -14,6 +14,7 @@ class StockItemSerializer(serializers.HyperlinkedModelSerializer):
                   'location',
                   'quantity',
                   'status',
+                  'notes',
                   'updated',
                   'last_checked',
                   'review_needed',
@@ -31,3 +32,14 @@ class LocationSerializer(serializers.HyperlinkedModelSerializer):
                   'description',
                   'parent',
                   'path')
+
+
+class StockTrackingSerializer(serializers.HyperlinkedModelSerializer):
+
+    class Meta:
+        model = StockTracking
+        fields = ('url',
+                  'item',
+                  'quantity',
+                  'pending',
+                  'when')

InvenTree/stock/urls.py

@@ -18,3 +18,11 @@ stock_loc_urls = [
 
     url(r'^$', views.LocationList.as_view())
 ]
+
+stock_track_urls = [
+    url(r'^(?P<pk>[0-9]+)/?$', views.StockTrackingDetail.as_view(), name='stocktracking-detail'),
+
+    url(r'^\?.*/?$', views.StockTrackingList.as_view()),
+
+    url(r'^$', views.StockTrackingList.as_view())
+]

InvenTree/stock/views.py

@@ -4,8 +4,8 @@ from django_filters import NumberFilter
 from rest_framework import generics, permissions
 
 # from InvenTree.models import FilterChildren
-from .models import StockLocation, StockItem
+from .models import StockLocation, StockItem, StockTracking
-from .serializers import StockItemSerializer, LocationSerializer
+from .serializers import StockItemSerializer, LocationSerializer, StockTrackingSerializer
 
 
 class StockDetail(generics.RetrieveUpdateDestroyAPIView):
@@ -100,3 +100,49 @@ class LocationList(generics.ListCreateAPIView):
     permission_classes = (permissions.IsAuthenticatedOrReadOnly,)
     filter_backends = (DjangoFilterBackend,)
     filter_class = StockLocationFilter
+
+
+class StockTrackingDetail(generics.RetrieveUpdateDestroyAPIView):
+    """
+
+    get:
+    Return a single StockTracking object
+
+    post:
+    Update a StockTracking object
+
+    delete:
+    Remove a StockTracking object
+
+    """
+
+    queryset = StockTracking.objects.all()
+    serializer_class = StockTrackingSerializer
+    permission_classes = (permissions.IsAuthenticatedOrReadOnly,)
+
+
+class StockTrackingFilter(FilterSet):
+
+    item = NumberFilter(name='item', lookup_expr='exact')
+
+    class Meta:
+        model = StockTracking
+        fields = ['item']
+
+
+class StockTrackingList(generics.ListCreateAPIView):
+    """
+
+    get:
+    Return a list of all StockTracking items
+
+    post:
+    Create a new StockTracking item
+
+    """
+
+    queryset = StockTracking.objects.all()
+    serializer_class = StockTrackingSerializer
+    permission_classes = (permissions.IsAuthenticatedOrReadOnly,)
+    filter_backends = (DjangoFilterBackend,)
+    filter_class = StockTrackingFilter