#100 feat : make land like&dislike api (#103)

lands/selectors.py

@@ -71,6 +71,10 @@ def get_user_items(user_email):
         user_items=Item.objects.filter(users__email=user_email)
         return user_items
 
+    @staticmethod
+    def likes(land:Land, user:User):
+        return land.likeuser_set.filter(pk=user.pk).exists()
+
 class LocationSelector:
     @staticmethod
     def show(self, location:Location):

lands/services.py

@@ -5,7 +5,7 @@
 import io, time, uuid
 from django.conf import settings
 from Cognisle.settings import development
-from .selectors import ItemSelector
+from .selectors import ItemSelector, LandSelector
 from .models import Land,Location,Item, ItemImage
 from users.models import User
 from core.utils import s3_file_upload_by_file_data
@@ -54,6 +54,23 @@ def create(background:str,user:User):
 
         return land
 
+    @staticmethod
+    def like_or_dislike(land:Land, user:User) -> bool:
+        if LandSelector.likes(land=land,user=user):
+            land.likeuser_set.remove(user)
+            land.like_cnt-=1
+
+            land.full_clean()
+            land.save()
+            return False
+        else:
+            land.likeuser_set.add(user)
+            land.like_cnt+=1
+
+            land.full_clean()
+            land.save()
+            return True
+
 class ItemImageService:
     def __init__(self):
         pass

lands/urls.py

@@ -12,4 +12,6 @@
     path('items/game/',ItemGetApi.as_view(),name='item_get'),
     #path('items/list/',ItemListApi.as_view(),name='item_list'),
     #path('items/',AllItemListApi.as_view(),name='all_item_list'),
+    path('likes/',LandLikeApi.as_view(),name='land_like'),
+
 ]

lands/views.py

@@ -13,7 +13,7 @@
 from .selectors import ItemSelector, LandSelector
 from rest_framework.exceptions import PermissionDenied
 from .models import Land, Location, Item, ItemImage
-from .services import LandCoordinatorService, ItemImageService, ItemService
+from .services import LandCoordinatorService, ItemImageService, ItemService, LandService
 from drf_yasg import openapi
 from drf_yasg.utils import swagger_auto_schema
 
@@ -205,6 +205,32 @@ def get(self, request):
                      'items':output_serializer.data.get('items'),
                      }}, status=status.HTTP_200_OK)
 
+class LandLikeApi(APIView):
+    permission_classes=(IsAuthenticated,)
+
+    class UserLandItemListInputSerializer(serializers.Serializer):
+        email = serializers.CharField()
+
+    def put(self,request):
+        serializers=self.UserLandItemListInputSerializer(data=request.data)
+        serializers.is_valid(raise_exception=True)
+        data=serializers.validated_data
+
+        user=get_object_or_404(User,email=data.get('email'))
+        land=get_object_or_404(Land,user=user)
+
+        likes=LandService.like_or_dislike(
+            land=land,
+            user=user
+        )
+
+        return Response({
+            "status":"success",
+            "data":{'land_owner':land.user.email,
+                'likes':likes,
+                'like_cnt':land.like_cnt}
+        },status=status.HTTP_200_OK)
+
 class ItemImageCreateApi(APIView):
     permission_classes=(IsAuthenticated,)