old_contents: # Generated by Django 3.1.5 on 2021-02-28 14:10
  
  from django.db import migrations
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          ('manager', '0010_auto_20210102_1446'),
      ]
  
      operations = [
          migrations.RemoveField(
              model_name='set',
              name='exercises',
          ),
      ]
  
new_contents: # Generated by Django 3.1.5 on 2021-02-28 14:10
  
  from django.db import migrations
  
  
  def increment_order(apps, schema_editor):
      """
      Increment the oder in settings so ensure the order is preserved
  
      Otherwise, and depending on the database, when a set has supersets, the
      exercises could be ordered alphabetically.
      """
  
      WorkoutSet = apps.get_model("manager", "Set")
  
      for workout_set in WorkoutSet.objects.all():
          counter = 1
          for exercise in workout_set.exercises.all():
              for setting in workout_set.setting_set.filter(exercise=exercise):
                  setting.order = counter
                  setting.save()
                  counter += 1
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          ('manager', '0010_auto_20210102_1446'),
      ]
  
      operations = [
          migrations.RunPython(increment_order),
          migrations.RemoveField(
              model_name='set',
              name='exercises',
          ),
      ]
  
subject: Increment the oder in settings so ensure the order is preserved