.

longs/models.py

@@ -129,7 +129,8 @@ class Long(QuestionBase):
         default=1, help_text="Auto incrementing json creation number"
     )
 
-    series = SortedManyToManyField("LongSeries", related_name="long")
+    #series = SortedManyToManyField("LongSeries", related_name="long")
+    series = models.ManyToManyField("LongSeries", through="SeriesDetail", related_name="long")
 
     # question_file = models.FileField(upload_to=question_file_directory_path, blank=True, null=True)
 
@@ -348,6 +349,14 @@ class LongSeriesImage(SeriesImageBase):
         "LongSeries", related_name="images", on_delete=models.CASCADE, null=True
     )
 
+class SeriesDetail(models.Model):
+    sort_order = models.IntegerField(default=1000)
+    long = models.ForeignKey(Long, on_delete=models.CASCADE)
+    longseries = models.ForeignKey("LongSeries", on_delete=models.CASCADE)
+
+
+    class Meta:
+        ordering = ("sort_order",)
 
 @reversion.register
 class LongSeries(SeriesBase):
@@ -413,7 +422,7 @@ class ExamQuestionDetail(models.Model):
     sort_order = models.IntegerField(default=1000)
 
     exam = models.ForeignKey("Exam", on_delete=models.CASCADE)
-    rapid = models.ForeignKey(Long, on_delete=models.CASCADE)
+    question = models.ForeignKey(Long, on_delete=models.CASCADE)
 
     class Meta:
         ordering = ("sort_order",)