add: add income model and income create and list apig

core/apps/finance/serializers/income.py

@@ -0,0 +1,97 @@
+from django.db import transaction
+
+from rest_framework import serializers
+
+from core.apps.finance.models import Income
+
+
+class IncomeListSerializer(serializers.ModelSerializer):
+    cash_transaction = serializers.SerializerMethodField(method_name='get_cash_transaction')
+    payment_type = serializers.SerializerMethodField(method_name='get_payment_type')
+    project_folder = serializers.SerializerMethodField(method_name='get_project_folder')
+    project = serializers.SerializerMethodField(method_name='get_project')
+    counterparty = serializers.SerializerMethodField(method_name='get_counterparty')
+    type_income = serializers.SerializerMethodField(method_name='get_type_income')
+
+    class Meta:
+        model = Income
+        fields = [
+            'id', 'cash_transaction', 'payment_type', 'project_folder', 'project',
+            'counterparty', 'type_income', 'currency', 'price', 'exchange_rate', 'date',
+            'comment', 'file', 'audit'
+        ]
+    
+    def get_cash_transaction(self, obj):
+        return {
+            'id': obj.cash_transaction.id,
+            'name': obj.cash_transaction.name
+        }
+    
+    def get_payment_type(self, obj):
+        return {
+            'id': obj.payment_type.id,
+            'name': obj.payment_type.name
+        }
+    
+    def get_project_folder(self, obj):
+        return {
+            'id': obj.project_folder.id,
+            'name': obj.project_folder.name
+        }
+    
+    def get_project(self, obj):
+        return {
+            'id': obj.project.id,
+            'name': obj.project.name
+        } if obj.project else None
+    
+    def get_counterparty(self, obj):
+        return {
+            'id': obj.counterparty.id,
+            'name': obj.counterparty.name
+        } if obj.counterparty else None
+    
+    def get_type_income(self, obj):
+        return {
+            'id': obj.type_income.id,
+            'name': obj.type_income.name
+        } if obj.type_income else None
+
+
+class IncomeCreateSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Income
+        fields = [
+            'cash_transaction', 'payment_type', 'project_folder', 'project',
+            'counterparty', 'type_income', 'currency', 'price', 'exchange_rate', 'date',
+            'comment', 'file', 'audit'
+        ]
+
+    def create(self, validated_data):
+        with transaction.atomic():
+            income = Income.objects.create(
+                cash_transaction=validated_data['cash_transaction'],
+                payment_type=validated_data['payment_type'],
+                project_folder=validated_data['project_folder'],
+                project=validated_data.get('project'),
+                counterparty=validated_data.get('counterparty'),
+                type_income=validated_data.get('type_income'),
+                currency=validated_data.get('currency'),
+                price=validated_data.get('price') * validated_data.get('exchange_rate') if validated_data.get('exchange_rate') else validated_data.get('price'),
+                exchange_rate=validated_data.get('exchange_rate'),
+                date=validated_data.get('date'),
+                comment=validated_data.get('comment'),
+                file=validated_data.get('file'),
+                audit=validated_data.get('audit')
+            )
+            cash_transaction = income.cash_transaction
+
+            if validated_data.get('currency') == 'uzs':
+                cash_transaction.income_balance_uzs += income.price
+                cash_transaction.total_balance_uzs = cash_transaction.income_balance_uzs - cash_transaction.expence_balance_uzs
+            elif validated_data.get('currency') == 'usd':
+                cash_transaction.income_balance_usd += income.price
+                cash_transaction.total_balance_usd = cash_transaction.income_balance_usd - cash_transaction.expence_balance_usd
+
+            cash_transaction.save()
+            return income