resolved most issues and simplified some code

artel/artel/celery.py

@@ -15,8 +15,3 @@ app.config_from_object('django.conf:settings', namespace='CELERY')
 
 # Load task modules from all registered Django apps.
 app.autodiscover_tasks()
-
-
-@app.task(bind=True)
-def debug_task(self):
-    print(f'Request: {self.request!r}')

artel/artel/settings/base.py

@@ -218,19 +218,28 @@ EMAIL_USE_TLS = True
 DEFAULT_FROM_EMAIL = os.environ.get('DEFAULT_FROM_EMAIL', 'artel-sklep@tepewu.pl')
 
 # CELERY settings
-CELERY_RESULT_BACKEND = 'django-db'
-CELERY_CACHE_BACKEND = 'django-cache'
-CELERY_TIMEZONE = "Europe/Warsaw"
-CELERY_TASK_TRACK_STARTED = True
-CELERY_TASK_TIME_LIMIT = 30 * 60
+CELERY_RESULT_BACKEND = os.environ.get("CELERY_RESULT_BACKEND")
+CELERY_CACHE_BACKEND = os.environ.get("CELERY_CACHE_BACKEND")
+CELERY_TIMEZONE = os.environ.get("CELERY_TIMEZONE")
+CELERY_TASK_TRACK_STARTED = os.environ.get("CELERY_TASK_TRACK_STARTED")
+CELERY_TASK_TIME_LIMIT = os.environ.get("CELERY_TASK_TIME_LIMIT")
 # CELERY_RESULT_BACKEND_DB = f'db+mysql+pymysql://{os.environ.get("MYSQL_USER")}:{os.environ.get("MYSQL_PASSWORD")}@db/{os.environ.get("MYSQL_DATABASE")}'
 CELERY_BROKER_URL = f'amqp://{os.environ.get("RABBITMQ_DEFAULT_USER")}:{os.environ.get("RABBITMQ_DEFAULT_PASS")}@rabbit//'
-CELERY_TASK_RESULT_EXPIRES = 18000
+CELERY_TASK_RESULT_EXPIRES = os.environ.get("CELERY_TASK_RESULT_EXPIRES")
+CELERY_ACCEPT_CONTENT = ['pickle'] #add this to your env
 
 # EASY_THUMBNAILS settings
 
 THUMBNAIL_DEFAULT_STORAGE = 'django.core.files.storage.FileSystemStorage'
-
+THUMBNAIL_ALIASES = {
+    '': {
+        'image_40_60': {'size': (40, 60), 'crop': True},
+        'image_60_90': {'size': (60, 90), 'crop': True},
+        'image_80_120': {'size': (80, 120), 'crop': True},
+        'image_120_180': {'size': (120, 180), 'crop': True},
+        'image_160_240': {'size': (160, 240), 'crop': True},
+    },
+}
 
 LOGGING = {
     "version": 1,

artel/artel/tasks.py

@@ -1,28 +1,18 @@
 from celery import shared_task
-from easy_thumbnails.files import get_thumbnailer
+from easy_thumbnails.files import generate_all_aliases
 import logging
 
 
 logger = logging.getLogger(__name__)
 
-THUMBNAIL_SIZES = {
-    'image_40_60': (40, 60, True),
-    'image_60_90': (60, 90, True),
-    'image_80_120': (80, 120, True),
-    'image_120_180': (120, 180, True),
-    'image_160_240': (160, 240, True),
-}
 
-
-@shared_task
-def generate_thumbnails(image_path):
+@shared_task(serializer="pickle")
+def generate_thumbnails(model, pk, field):
     try:
-        thumbnailer = get_thumbnailer(image_path)
-        thumbnails = {}
-        for size_name, (width, height, crop) in THUMBNAIL_SIZES.items():
-            thumbnail = thumbnailer.get_thumbnail({'size': (width, height), 'crop': crop})
-            thumbnails[size_name] = thumbnail.url
-        return thumbnails
+        instance = model._default_manager.get(pk=pk)
+        fieldfile = getattr(instance, field)
+        generate_all_aliases(fieldfile, include_global=True)
+        return {"status": True}
     except Exception as e:
-        logger.exception(f"Error generating thumbnails for image_instance {image_path}: {e}")
-        return None
+        logger.exception("An error occurred while generating thumbnails.")
+        return {"status": False, "error": str(e)}

artel/store/apps.py

@@ -5,5 +5,3 @@ class StoreConfig(AppConfig):
     default_auto_field = 'django.db.models.BigAutoField'
     name = 'store'
 
-    def ready(self):
-        import store.signals

artel/store/models.py

@@ -43,6 +43,10 @@ from mailings.models import (
 
 from easy_thumbnails.fields import ThumbnailerImageField
 
+from django.dispatch import receiver
+from easy_thumbnails.signals import saved_file
+from artel import tasks
+
 
 logger = logging.getLogger(__name__)
 
@@ -535,3 +539,11 @@ class OrderDocument(models.Model):
         template = Template(content)
         content = template.render(context)
         return pdfkit.from_string(content, False)
+
+
+
+@receiver(saved_file)
+def generate_thumbnails_async(sender, fieldfile, **kwargs):
+    tasks.generate_thumbnails.delay(
+        model=sender, pk=fieldfile.instance.pk,
+        field=fieldfile.field.name)

artel/store/signals.py

@@ -1,10 +0,0 @@
-from django.db.models.signals import post_save
-from django.dispatch import receiver
-from store.models import ProductTemplateImage
-from artel.tasks import generate_thumbnails
-
-
-@receiver(post_save, sender=ProductTemplateImage)
-def generate_thumbnail(sender, instance, **kwargs):
-    image_path = instance.image.path
-    generate_thumbnails.delay(image_path)

artel/store/templates/store/partials/product_card.html

@@ -3,20 +3,19 @@
 <div class="card h-100" >
   <div class="card-header text-truncate">{{item.title}}</div>
   <div class="card-body p-0">
-    <img src="{{ item.main_image.image.url }}.40x60_q85_crop.jpg" class="d-block d-sm-none img-fluid rounded mx-auto" alt="{{item.title}}">
+    <img src="{{ item.main_image.image|thumbnail_url:'image_40_60' }}" class="d-block d-sm-none img-fluid rounded mx-auto" alt="{{item.title}}">
 
-    <img src="{{ item.main_image.image.url }}.60x90_q85_crop.jpg" class="d-none d-sm-block d-md-none img-fluid rounded mx-auto" alt="{{item.title}}">
+    <img src="{{ item.main_image.image|thumbnail_url:'image_60_90' }}" class="d-none d-sm-block d-md-none img-fluid rounded mx-auto" alt="{{item.title}}">
 
-    <img src="{{ item.main_image.image.url }}.80x120_q85_crop.jpg" class="d-none d-md-block d-lg-none img-fluid rounded mx-auto" alt="{{item.title}}">
+    <img src="{{ item.main_image.image|thumbnail_url:'image_80_120' }}" class="d-none d-md-block d-lg-none img-fluid rounded mx-auto" alt="{{item.title}}">
     
-    <img src="{{ item.main_image.image.url }}.120x180_q85_crop.jpg" class="d-none d-lg-block d-xl-none img-fluid rounded mx-auto" alt="{{item.title}}">
+    <img src="{{ item.main_image.image|thumbnail_url:'image_120_180' }}" class="d-none d-lg-block d-xl-none img-fluid rounded mx-auto" alt="{{item.title}}">
 
-    <img src="{{ item.main_image.image.url }}.160x240_q85_crop.jpg" class="d-none d-xl-block img-fluid rounded mx-auto" alt="{{item.title}}">
-
-    <div class="card-footer row d-flex m-0">
-      <div class="col text-center">
+    <img src="{{ item.main_image.image|thumbnail_url:'image_160_240' }}" class="d-none d-xl-block img-fluid rounded mx-auto" alt="{{item.title}}">
+  </div>
+  <div class="card-footer row d-flex m-0">
+    <div class="col text-center">
           <a href="{% url 'product-configure' item.id %}" class="btn btn-primary">Konfiguruj</a>
-      </div>
     </div>
   </div>
 </div>