Added picture profile in admin section, declaring the field as a read…

…only

pet/admin.py

@@ -1,4 +1,6 @@
 from django.contrib import admin
+from django.utils.safestring import mark_safe
+from django.utils.translation import gettext_lazy as _
 
 from pet.filters import HasOwnerFilter
 from pet.models import Breed, Pet
@@ -8,9 +10,33 @@
 class PetAdmin(admin.ModelAdmin):
     search_fields = ["name", "owner"]
     list_display = ("name", "breed", "gender", "age", "owner", "has_owner", "is_neutered")
-    readonly_fields = ("age", )
+    readonly_fields = ("age", "picture_display",)
     list_filter = (HasOwnerFilter,)
 
+    def picture_display(self, obj=None):
+        return mark_safe(
+            f'<img style="object-fit: cover;" src="{obj.picture_url}" height=250 width=100%>'
+        )
+
+    picture_display.short_description = _("Profile Picture")
+
+    def get_fieldsets(self, request, obj=None):
+        if obj is None or not obj.picture_url:
+            picture_fields = [
+                ("picture",),
+            ]
+        else:
+            picture_fields = [
+                ("picture_display", "picture"),
+            ]
+        return (
+            (
+                None, {
+                    "fields": picture_fields + [("name", "breed", "gender", "age"), ]
+                }
+            ),
+        )
+
 
 @admin.register(Breed)
 class BreedAdmin(admin.ModelAdmin):
@@ -19,4 +45,5 @@ class BreedAdmin(admin.ModelAdmin):
 
 class PetInline(admin.TabularInline):
     model = Pet
+    fields = ("name", "breed", "gender")
     extra = 0