feat(media): add client and project thumbnails

apps/clients/api/serializers.py

@@ -3,32 +3,65 @@ from apps.clients.models import Client
 from core.serializers.base import BaseModelSerializer
 
 
-class ClientSerializer(BaseModelSerializer):
+class ClientSerializer(BaseModelSerializer):
     """
     Serializer for retrieving and representing client details.
     """
     class Meta:
         model = Client
-        fields = BaseModelSerializer.Meta.fields + (
-            "workspace",
-            "name",
-            "notes",
-        )
-        read_only_fields = fields
+        fields = BaseModelSerializer.Meta.fields + (
+            "workspace",
+            "name",
+            "notes",
+            "thumbnail",
+        )
+        read_only_fields = fields
+
+    def to_representation(self, instance):
+        data = super().to_representation(instance)
+        request = self.context.get("request")
+        if instance.thumbnail:
+            thumbnail_url = instance.thumbnail.url
+            data["thumbnail"] = request.build_absolute_uri(thumbnail_url) if request else thumbnail_url
+        else:
+            data["thumbnail"] = None
+        return data
+
+
+def validate_thumbnail(value):
+    if value is None:
+        return value
+    max_bytes = 2 * 1024 * 1024
+    if getattr(value, "size", 0) > max_bytes:
+        raise serializers.ValidationError("Image size must be 2MB or less.")
+    content_type = (getattr(value, "content_type", "") or "").lower()
+    allowed_types = {"image/jpeg", "image/png", "image/webp"}
+    if content_type and content_type not in allowed_types:
+        raise serializers.ValidationError("Unsupported image type. Use JPG, PNG, or WebP.")
+    return value
 
 
 class ClientCreateSerializer(serializers.Serializer):
     """
     Serializer for handling input data during client creation.
     """
-    workspace_id = serializers.UUIDField()
-    name = serializers.CharField(max_length=255)
-    notes = serializers.CharField(allow_blank=True, required=False, default="")
+    workspace_id = serializers.UUIDField()
+    name = serializers.CharField(max_length=255)
+    notes = serializers.CharField(allow_blank=True, required=False, default="")
+    thumbnail = serializers.ImageField(required=False, allow_null=True)
+
+    def validate_thumbnail(self, value):
+        return validate_thumbnail(value)
 
 
 class ClientUpdateSerializer(serializers.Serializer):
     """
     Serializer for handling input data during client updates.
     """
-    name = serializers.CharField(max_length=255, required=False)
-    notes = serializers.CharField(allow_blank=True, required=False)
+    name = serializers.CharField(max_length=255, required=False)
+    notes = serializers.CharField(allow_blank=True, required=False)
+    thumbnail = serializers.ImageField(required=False, allow_null=True)
+    clear_thumbnail = serializers.BooleanField(required=False, default=False)
+
+    def validate_thumbnail(self, value):
+        return validate_thumbnail(value)

apps/clients/api/views.py

@@ -61,12 +61,13 @@ class ClientViewSet(ModelViewSet):
         
         client = create_client(
             user=request.user,
-            workspace_id=serializer.validated_data["workspace_id"],
-            name=serializer.validated_data["name"],
-            notes=serializer.validated_data.get("notes", "")
-        )
-        
-        output_serializer = ClientSerializer(client)
+            workspace_id=serializer.validated_data["workspace_id"],
+            name=serializer.validated_data["name"],
+            notes=serializer.validated_data.get("notes", ""),
+            thumbnail=serializer.validated_data.get("thumbnail"),
+        )
+        
+        output_serializer = ClientSerializer(client, context={"request": request})
         return Response(output_serializer.data, status=status.HTTP_201_CREATED)
 
     def update(self, request, *args, **kwargs):
@@ -80,12 +81,14 @@ class ClientViewSet(ModelViewSet):
         serializer.is_valid(raise_exception=True)
         
         updated_client = update_client(
-            client=client,
-            name=serializer.validated_data.get("name"),
-            notes=serializer.validated_data.get("notes")
-        )
-        
-        output_serializer = ClientSerializer(updated_client)
+            client=client,
+            name=serializer.validated_data.get("name"),
+            notes=serializer.validated_data.get("notes"),
+            thumbnail=serializer.validated_data.get("thumbnail"),
+            clear_thumbnail=serializer.validated_data.get("clear_thumbnail", False),
+        )
+        
+        output_serializer = ClientSerializer(updated_client, context={"request": request})
         return Response(output_serializer.data, status=status.HTTP_200_OK)
 
     def destroy(self, request, *args, **kwargs):

apps/clients/migrations/0002_client_thumbnail.py

@@ -0,0 +1,18 @@
+# Generated by Django 5.2.12 on 2026-05-26 08:20
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('clients', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='client',
+            name='thumbnail',
+            field=models.ImageField(blank=True, null=True, upload_to='profile/clients/'),
+        ),
+    ]

apps/clients/models.py

@@ -17,6 +17,8 @@ class Client(BaseModel):
 
     notes = models.TextField(blank=True)
 
+    thumbnail = models.ImageField(upload_to="profile/clients/", blank=True, null=True)
+
     class Meta:
         db_table = "client"
         ordering = ("-updated_at", "-created_at")

apps/clients/services/clients.py

@@ -3,7 +3,7 @@ from apps.clients.models import Client
 from apps.workspaces.models import WorkspaceMembership
 
 
-def create_client(user, workspace_id, name, notes=""):
+def create_client(user, workspace_id, name, notes="", thumbnail=None):
     """
     Creates a new client after validating workspace membership and name uniqueness.
     """
@@ -23,12 +23,13 @@ def create_client(user, workspace_id, name, notes=""):
         workspace_id=workspace_id,
         name=name,
         notes=notes,
+        thumbnail=thumbnail,
         created_by=user,
         updated_by=user,
     )
-
-
-def update_client(client, name=None, notes=None):
+
+
+def update_client(client, name=None, notes=None, thumbnail=None, clear_thumbnail=False):
     """
     Updates an existing client while validating name uniqueness within the workspace.
     """
@@ -37,8 +38,20 @@ def update_client(client, name=None, notes=None):
             raise ValidationError({"name": "مشتری با این نام در این فضای کاری وجود دارد."})
         client.name = name
 
-    if notes is not None:
-        client.notes = notes
-
-    client.save(update_fields=["name", "notes", "updated_at"])
-    return client
+    if notes is not None:
+        client.notes = notes
+
+    old_thumbnail_name = client.thumbnail.name if client.thumbnail else None
+    if clear_thumbnail and client.thumbnail:
+        client.thumbnail.delete(save=False)
+        client.thumbnail = None
+
+    if thumbnail is not None:
+        client.thumbnail = thumbnail
+
+    client.save(update_fields=["name", "notes", "thumbnail", "updated_at"])
+    if old_thumbnail_name and client.thumbnail and client.thumbnail.name != old_thumbnail_name:
+        storage = client.thumbnail.storage
+        if storage.exists(old_thumbnail_name):
+            storage.delete(old_thumbnail_name)
+    return client