refactor: Rename model retrieval functions for consistency to align with django auth's app.

Ref: #314 (comment)

Author: diegocastrum

django_celery_results/admin.py

@@ -10,10 +10,10 @@
     ALLOW_EDITS = False
     pass
 
-from .models.helpers import groupresult_model, taskresult_model
+from .models.helpers import get_group_result_model, get_task_result_model
 
-GroupResult = groupresult_model()
-TaskResult = taskresult_model()
+GroupResult = get_group_result_model()
+TaskResult = get_task_result_model()
 
 
 class TaskResultAdmin(admin.ModelAdmin):

django_celery_results/backends/database.py

@@ -13,9 +13,9 @@
 from kombu.exceptions import DecodeError
 
 from ..models.helpers import (
-    chordcounter_model,
-    groupresult_model,
-    taskresult_model,
+    get_chord_counter_model,
+    get_group_result_model,
+    get_task_result_model,
 )
 from ..settings import get_task_props_extension
 
@@ -33,9 +33,9 @@
 class DatabaseBackend(BaseDictBackend):
     """The Django database backend, using models to store task state."""
 
-    TaskModel = taskresult_model()
-    GroupModel = groupresult_model()
-    ChordCounterModel = chordcounter_model()
+    TaskModel = get_task_result_model()
+    GroupModel = get_group_result_model()
+    ChordCounterModel = get_chord_counter_model()
     subpolling_interval = 0.5
 
     def exception_safe_to_retry(self, exc):

django_celery_results/models/helpers.py

@@ -5,7 +5,7 @@
 from .generic import ChordCounter, GroupResult, TaskResult
 
 
-def taskresult_model():
+def get_task_result_model():
     """Return the TaskResult model that is active in this project."""
     if not hasattr(settings, 'CELERY_RESULTS_TASKRESULT_MODEL'):
         return TaskResult
@@ -27,7 +27,7 @@ def taskresult_model():
         )
 
 
-def chordcounter_model():
+def get_chord_counter_model():
     """Return the ChordCounter model that is active in this project."""
 
     if not hasattr(settings, 'CELERY_RESULTS_CHORDCOUNTER_MODEL'):
@@ -50,7 +50,7 @@ def chordcounter_model():
         )
 
 
-def groupresult_model():
+def get_group_result_model():
     """Return the GroupResult model that is active in this project."""
     if not hasattr(settings, 'CELERY_RESULTS_GROUPRESULT_MODEL'):
         return GroupResult