Basic proposal system implemented

FusionIIIT/applications/eis/migrations/0001_initial.py

@@ -277,4 +277,4 @@ class Migration(migrations.Migration):
                 ('user', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
             ],
         ),
-    ]
+    ]

FusionIIIT/applications/iwdModuleV2/api/serializers.py

@@ -137,4 +137,51 @@ class Meta:
 class LetterOfIntentDetailsSerializer(serializers.ModelSerializer):
     class Meta:
         model = LetterOfIntentDetails
-        fields = '__all__'
+        fields = '__all__'
+
+class ItemSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Item
+        fields = '__all__'
+class ProposalSerializer(serializers.ModelSerializer):
+    items = ItemSerializer(many=True)
+    class Meta:
+        model = Proposal
+        fields = '__all__'
+
+    def create(self, validated_data):
+        items_data = validated_data.pop('items')
+        proposal = Proposal.objects.create(**validated_data)
+        total_budget = 0
+        for item_data in items_data:
+            item = Item.objects.create(proposal=proposal, **item_data)
+            total_budget += item.total_price
+        proposal.proposal_budget = total_budget
+        proposal.save()
+        return proposal
+
+    def update(self, instance, validated_data):
+        items_data = validated_data.pop('items')
+        instance.supporting_documents = validated_data.get('supporting_documents', instance.supporting_documents)
+        instance.status = validated_data.get('status', instance.status)
+        instance.save()
+
+        total_budget = 0
+        for item_data in items_data:
+            item_id = item_data.get('id')
+            if item_id:
+                item = Item.objects.get(id=item_id, proposal=instance)
+                item.name = item_data.get('name', item.name)
+                item.description = item_data.get('description', item.description)
+                item.unit = item_data.get('unit', item.unit)
+                item.price_per_unit = item_data.get('price_per_unit', item.price_per_unit)
+                item.total_price = item_data.get('total_price', item.total_price)
+                item.docs = item_data.get('docs', item.docs)
+                item.save()
+            else:
+                item = Item.objects.create(proposal=instance, **item_data)
+            total_budget += item.total_price
+
+        instance.proposal_budget = total_budget
+        instance.save()
+        return instance

FusionIIIT/applications/iwdModuleV2/api/views.py

@@ -54,8 +54,7 @@ def create_request(request):
         to create a new request
     '''
     data = request.data
-    data['requestCreatedBy'] = request.user.username 
-    data['requestCreatedBy'] = request.user.username 
+    data['requestCreatedBy'] = request.user.username
     serializer = CreateRequestsSerializer(data=data, context={'request': request})
 
     if serializer.is_valid():
@@ -1172,5 +1171,32 @@ def handle_settle_bill_requests(request):
 
     return Response({'error': 'Request ID not provided'}, status=status.HTTP_400_BAD_REQUEST)
 
+@api_view(['POST'])
+@permission_classes([IsAuthenticated])
+def create_proposal(request):
+    data = request.data
+    receiver_desg, receiver_user = data.get('designation').split('|')
+    serializer = ProposalSerializer(data=request.data)
+    if serializer.is_valid():
+        file_id = create_file(
+            uploader=request.user.username,
+            uploader_designation=data.get('role'),
+            receiver=receiver_user,
+            receiver_designation=receiver_desg,
+            src_module="IWD",
+            src_object_id=str(data.get("id")),
+            file_extra_JSON={"value": 2},
+            attached_file=None
+        )
+        file_instance = File.objects.get(id=file_id)
+        proposal = serializer.save(created_by=request.user, file=file_instance)
+        return Response(serializer.data, status=status.HTTP_201_CREATED)
+    return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
 
+@api_view(['GET'])
+@permission_classes([IsAuthenticated])
+def get_proposals(request, request_id):
+    proposals = Proposal.objects.filter(request_id=request_id)
+    serializer = ProposalSerializer(proposals, many=True)
+    return Response(serializer.data, status=status.HTTP_200_OK)
 

FusionIIIT/applications/iwdModuleV2/models.py

@@ -1,5 +1,7 @@
 from django.db import models
 from datetime import date
+#from django.contrib.auth.models import User
+from applications.filetracking.models import File
 
 # Create your models here.
 
@@ -196,3 +198,21 @@ class Bills(models.Model):
 class Budget(models.Model):
     name = models.CharField(max_length=200)
     budgetIssued = models.IntegerField(default=0)
+
+class Proposal(models.Model):
+    request = models.ForeignKey(Requests, on_delete=models.CASCADE, related_name='proposals')
+    created_by = models.CharField(max_length=200) #models.ForeignKey(User, on_delete=models.CASCADE)
+    file = models.ForeignKey(File, on_delete=models.CASCADE, null=True, blank=True)
+    proposal_budget = models.DecimalField(max_digits=15, decimal_places=2, null=True, blank=True)
+    supporting_documents = models.FileField(upload_to='proposals/', null=True, blank=True)
+    created_at = models.DateTimeField(auto_now_add=True)
+    updated_at = models.DateTimeField(auto_now=True)
+    status = models.CharField(max_length=20, choices=[('Pending', 'Pending'), ('Approved', 'Approved'), ('Rejected', 'Rejected')], default='Pending')
+class Item(models.Model):
+    proposal = models.ForeignKey('Proposal', on_delete=models.CASCADE, related_name='items')
+    name = models.CharField(max_length=255)
+    description = models.TextField()
+    unit = models.CharField(max_length=50)
+    price_per_unit = models.DecimalField(max_digits=10, decimal_places=2)
+    total_price = models.DecimalField(max_digits=10, decimal_places=2)
+    docs = models.FileField(upload_to='items/', null=True, blank=True)