Use DRF field_name not source as GET param prefix as documented

pictures/contrib/rest_framework.py

@@ -41,18 +41,18 @@ def to_representation(self, obj: PictureFieldFile):
         except KeyError:
             pass
         else:
-            ratio = query_params.get(f"{self.source}_ratio")
-            container = query_params.get(f"{self.source}_container")
+            ratio = query_params.get(f"{self.field_name}_ratio")
+            container = query_params.get(f"{self.field_name}_container")
             try:
                 container = int(container)
             except TypeError:
                 container = None
             except ValueError as e:
                 raise ValueError(f"Container width is not a number: {container}") from e
             breakpoints = {
-                bp: int(query_params.get(f"{self.source}_{bp}"))
+                bp: int(query_params.get(f"{self.field_name}_{bp}"))
                 for bp in get_settings().BREAKPOINTS
-                if f"{self.source}_{bp}" in query_params
+                if f"{self.field_name}_{bp}" in query_params
             }
             if ratio is not None:
                 try:

tests/contrib/test_rest_framework.py

@@ -11,11 +11,11 @@
 
 
 class ProfileSerializer(serializers.ModelSerializer):
-    picture = rest_framework.PictureField()
+    image = rest_framework.PictureField(source="picture")
 
     class Meta:
         model = models.Profile
-        fields = ["picture"]
+        fields = ["image"]
 
 
 def test_default(settings):
@@ -48,7 +48,7 @@ def test_to_representation(self, image_upload_file, settings):
         profile = models.Profile.objects.create(picture=image_upload_file)
         serializer = ProfileSerializer(profile)
 
-        assert serializer.data["picture"] == {
+        assert serializer.data["image"] == {
             "url": "/media/testapp/profile/image.png",
             "width": 800,
             "height": 800,
@@ -121,12 +121,12 @@ def test_to_representation__with_aspect_ratios(
         profile = models.Profile.objects.create(picture=image_upload_file)
         request = rf.get("/")
         request.GET._mutable = True
-        request.GET["picture_ratio"] = "1/1"
-        request.GET["picture_l"] = "3"
-        request.GET["picture_m"] = "4"
+        request.GET["image_ratio"] = "1/1"
+        request.GET["image_l"] = "3"
+        request.GET["image_m"] = "4"
         serializer = ProfileSerializer(profile, context={"request": request})
 
-        assert serializer.data["picture"] == {
+        assert serializer.data["image"] == {
             "url": "/media/testapp/profile/image.png",
             "width": 800,
             "height": 800,
@@ -158,13 +158,13 @@ def test_to_representation__raise_value_error(
         profile = models.Profile.objects.create(picture=image_upload_file)
         request = rf.get("/")
         request.GET._mutable = True
-        request.GET["picture_ratio"] = "21/11"
-        request.GET["picture_l"] = "3"
-        request.GET["picture_m"] = "4"
+        request.GET["image_ratio"] = "21/11"
+        request.GET["image_l"] = "3"
+        request.GET["image_m"] = "4"
         serializer = ProfileSerializer(profile, context={"request": request})
 
         with pytest.raises(ValueError) as e:
-            serializer.data["picture"]
+            serializer.data["image"]
 
         assert str(e.value) == "Invalid ratio: 21/11. Choices are: 1/1, 3/2, 16/9"
 
@@ -175,12 +175,12 @@ def test_to_representation__blank(self, rf, image_upload_file, settings):
         profile = models.Profile.objects.create()
         request = rf.get("/")
         request.GET._mutable = True
-        request.GET["picture_ratio"] = "21/11"
-        request.GET["picture_l"] = "3"
-        request.GET["picture_m"] = "4"
+        request.GET["image_ratio"] = "21/11"
+        request.GET["image_l"] = "3"
+        request.GET["image_m"] = "4"
         serializer = ProfileSerializer(profile, context={"request": request})
 
-        assert serializer.data["picture"] is None
+        assert serializer.data["image"] is None
 
     @pytest.mark.django_db
     def test_to_representation__with_container(self, rf, image_upload_file, settings):
@@ -189,10 +189,10 @@ def test_to_representation__with_container(self, rf, image_upload_file, settings
         profile = models.Profile.objects.create(picture=image_upload_file)
         request = rf.get("/")
         request.GET._mutable = True
-        request.GET["picture_ratio"] = "16/9"
-        request.GET["picture_container"] = "1200"
+        request.GET["image_ratio"] = "16/9"
+        request.GET["image_container"] = "1200"
         serializer = ProfileSerializer(profile, context={"request": request})
-        assert serializer.data["picture"] == {
+        assert serializer.data["image"] == {
             "url": "/media/testapp/profile/image.png",
             "width": 800,
             "height": 800,
@@ -224,9 +224,9 @@ def test_to_representation__without_container(
         profile = models.Profile.objects.create(picture=image_upload_file)
         request = rf.get("/")
         request.GET._mutable = True
-        request.GET["picture_ratio"] = "16/9"
+        request.GET["image_ratio"] = "16/9"
         serializer = ProfileSerializer(profile, context={"request": request})
-        assert serializer.data["picture"] == {
+        assert serializer.data["image"] == {
             "url": "/media/testapp/profile/image.png",
             "width": 800,
             "height": 800,
@@ -258,9 +258,9 @@ def test_to_representation__with_false_str_container(
         profile = models.Profile.objects.create(picture=image_upload_file)
         request = rf.get("/")
         request.GET._mutable = True
-        request.GET["picture_ratio"] = "16/9"
-        request.GET["picture_container"] = "not_a_number"
+        request.GET["image_ratio"] = "16/9"
+        request.GET["image_container"] = "not_a_number"
         serializer = ProfileSerializer(profile, context={"request": request})
         with pytest.raises(ValueError) as e:
-            serializer.data["picture"]
+            serializer.data["image"]
         assert str(e.value) == "Container width is not a number: not_a_number"

tests/testapp/migrations/0005_alter_profile_picture.py

@@ -1,6 +1,7 @@
 # Generated by Django 3.2.19 on 2023-06-07 18:06
 
 from django.db import migrations
+
 import pictures.models