fix: refactor helper functions to avoid circular dependencies

django_celery_results/models/generic.py

@@ -1,7 +1,5 @@
 """Database models."""
 
-import json
-
 from django.utils.translation import gettext_lazy as _
 
 from django_celery_results.models.abstract import (
@@ -25,6 +23,8 @@ class ChordCounter(AbstractChordCounter):
     """Chord synchronisation."""
 
     class Meta(AbstractChordCounter.Meta):
+        """Table information."""
+
         abstract = False
         app_label = "django_celery_results"
 

django_celery_results/models/helpers.py

@@ -2,12 +2,12 @@
 from django.conf import settings
 from django.core.exceptions import ImproperlyConfigured
 
-from .generic import ChordCounter, GroupResult, TaskResult
-
 
 def taskresult_model():
     """Return the TaskResult model that is active in this project."""
     if not hasattr(settings, 'CELERY_RESULTS_TASKRESULT_MODEL'):
+        from .generic import TaskResult
+
         return TaskResult
 
     try:
@@ -31,6 +31,8 @@ def chordcounter_model():
     """Return the ChordCounter model that is active in this project."""
 
     if not hasattr(settings, 'CELERY_RESULTS_CHORDCOUNTER_MODEL'):
+        from .generic import ChordCounter
+
         return ChordCounter
 
     try:
@@ -53,6 +55,8 @@ def chordcounter_model():
 def groupresult_model():
     """Return the GroupResult model that is active in this project."""
     if not hasattr(settings, 'CELERY_RESULTS_GROUPRESULT_MODEL'):
+        from .generic import GroupResult
+
         return GroupResult
 
     try: