start to write contract apis

core/apps/contracts/serializers/contract_side.py

@@ -0,0 +1,25 @@
+from django.contrib.auth import get_user_model
+
+from rest_framework import serializers
+
+from core.apps.contracts.models.contract import ContractSide, Contract
+from core.apps.contracts.enums.contract_side import ROLE
+
+User = get_user_model()
+
+class ContractSideCreateSerializer(serializers.Serializer):
+    full_name = serializers.CharField()
+    indentification = serializers.CharField()
+    position = serializers.CharField(required=False)
+    has_indentification = serializers.BooleanField()
+    user_role = serializers.ChoiceField(choices=ROLE)
+    phone = serializers.CharField()
+    contract_id = serializers.UUIDField()
+
+    def validate(self, data):
+        if not User.objects.filter(phone=data.get('phone')).exists():
+            raise serializers.ValidationError({'detail': "User not found!"})
+        if not Contract.objects.filter(id=data.get('contract_id')).exists():
+            raise serializers.ValidationError({'detail': 'Contract not found!'})
+        return data
+