Добавлена модель стандартной аватарки проекта, в случае если проект создан без автарки будет выбрана случайная из стандартных

Author: Toksi86

projects/admin.py

@@ -3,6 +3,7 @@
 from projects.models import (
     Achievement,
     Collaborator,
+    DefaultProjectAvatar,
     DefaultProjectCover,
     Project,
     ProjectLink,
@@ -141,3 +142,8 @@ class DefaultProjectCoverAdmin(admin.ModelAdmin):
         "datetime_created",
         "datetime_updated",
     )
+
+
+@admin.register(DefaultProjectAvatar)
+class DefaultProjectAvatarAdmin(admin.ModelAdmin):
+    list_display = ("id", "image", "datetime_created")

projects/migrations/0027_alter_defaultprojectcover_datetime_created_and_more.py

@@ -0,0 +1,64 @@
+# Generated by Django 4.2.11 on 2025-07-11 11:40
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("files", "0007_auto_20230929_1727"),
+        ("projects", "0026_collaborator_specialization"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="defaultprojectcover",
+            name="datetime_created",
+            field=models.DateTimeField(auto_now_add=True),
+        ),
+        migrations.AlterField(
+            model_name="defaultprojectcover",
+            name="datetime_updated",
+            field=models.DateTimeField(auto_now=True),
+        ),
+        migrations.AlterField(
+            model_name="defaultprojectcover",
+            name="image",
+            field=models.ForeignKey(
+                blank=True,
+                null=True,
+                on_delete=django.db.models.deletion.CASCADE,
+                to="files.userfile",
+            ),
+        ),
+        migrations.CreateModel(
+            name="DefaultProjectAvatar",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("datetime_created", models.DateTimeField(auto_now_add=True)),
+                ("datetime_updated", models.DateTimeField(auto_now=True)),
+                (
+                    "image",
+                    models.ForeignKey(
+                        blank=True,
+                        null=True,
+                        on_delete=django.db.models.deletion.CASCADE,
+                        to="files.userfile",
+                    ),
+                ),
+            ],
+            options={
+                "verbose_name": "Аватарка проекта",
+                "verbose_name_plural": "Аватарки проектов",
+            },
+        ),
+    ]

projects/models.py

@@ -16,54 +16,48 @@
 User = get_user_model()
 
 
-class DefaultProjectCover(models.Model):
+class AbstractDefaultProjectImage(models.Model):
     """
-    Default cover model for projects, is chosen randomly at project creation
-
-    Attributes:
-        image: A ForeignKey referencing the image of the cover.
-        datetime_created: A DateTimeField indicating date of creation.
-        datetime_updated: A DateTimeField indicating date of update.
+    Абстрактная модель для хранения изображений проекта по умолчанию.
     """
 
     image = models.ForeignKey(
         UserFile,
         on_delete=models.CASCADE,
-        related_name="default_covers",
         null=True,
         blank=True,
     )
+    datetime_created = models.DateTimeField(auto_now_add=True)
+    datetime_updated = models.DateTimeField(auto_now=True)
 
-    datetime_created = models.DateTimeField(
-        verbose_name="Дата создания",
-        null=False,
-        auto_now_add=True,
-    )
-    datetime_updated = models.DateTimeField(
-        verbose_name="Дата изменения",
-        null=False,
-        auto_now=True,
-    )
+    class Meta:
+        abstract = True
 
     @classmethod
-    def get_random_file(cls):
-        # FIXME: this is not efficient, but for ~10 default covers it should be ok
-        return cls.objects.order_by("?").first().image
+    def get_random_file(cls) -> Optional[UserFile]:
+        if not cls.objects.exists():
+            return None
+        obj = cls.objects.order_by("?").first()
+        return obj.image if obj and obj.image else None
 
     @classmethod
-    def get_random_file_link(cls):
-        # FIXME: this is not efficient, but for ~10 default covers it should be ok
-        return (
-            cls.objects.order_by("?").first().image.link
-            if cls.objects.order_by("?").first().image
-            else None
-        )
+    def get_random_file_link(cls) -> Optional[str]:
+        file = cls.get_random_file()
+        return file.link if file else None
 
+
+class DefaultProjectCover(AbstractDefaultProjectImage):
     class Meta:
         verbose_name = "Обложка проекта"
         verbose_name_plural = "Обложки проектов"
 
 
+class DefaultProjectAvatar(AbstractDefaultProjectImage):
+    class Meta:
+        verbose_name = "Аватарка проекта"
+        verbose_name_plural = "Аватарки проектов"
+
+
 class Project(models.Model):
     """
     Project model
@@ -193,9 +187,13 @@ def __str__(self):
         return f"Project<{self.id}> - {self.name}"
 
     def save(self, *args, **kwargs):
-        """Set random cover image if `cover_image_address` blank."""
-        if self.cover_image_address is None:
+        """Set random cover and avatar images if not provided."""
+        if not self.cover_image_address:
             self.cover_image_address = DefaultProjectCover.get_random_file_link()
+
+        if not self.image_address:
+            self.image_address = DefaultProjectAvatar.get_random_file_link()
+
         super().save(*args, **kwargs)
 
     class Meta:

projects/validators.py

@@ -4,8 +4,9 @@
 def validate_project(data):
     if not data.get("draft"):
         error = {}
+        allowed_blank = {"image_address"}
         for key, value in data.items():
-            if value == "" or value is None:
+            if (value == "" or value is None) and key not in allowed_blank:
                 error[key] = "This field is required"
         if error:
             raise ValidationError(error)