How to set daily Update limit on Django model

I'm new to Django. I have created one Django App where users can update their Shift Timing(Morning/Evening/General) and based on this Shift Timing I am taking real-time data from Django Model and running Linux script which will be evaluating user shift timing and allowed timing to use the application.

I have used Django import and export which allows the user to upload multiple users' data by using a .xls file from the front-end. Now here I want to apply some limit for example suppose my model is having 5000 records so I want that only 50% of its records should be allowed to modify whether it is added through .xls file or by clicking on update single records(I am doing this because I don't want that more than 50% of users should update Shift Timing). Is there any easiest way to implement this requirement?

I have checked https://pypi.org/project/django-limits/ (Django-limits 0.0.6)but did not understand from step 3.

I am adding my models.py

class CTS(models.Model): 

AConnectID = models.CharField(max_length=100,) Shift_timing = models.CharField(max_length=64, choices=SHIFT_CHOICES, default='9.00-6.00') EmailID = models.EmailField(max_length=64, unique=True, ) Vendor_Company = models.CharField(max_length=64, ) Project_name = models.CharField(max_length=25, default="") SerialNumber = models.CharField(max_length=19, default="") Reason = models.TextField(max_length=180) last_updated_time = models.DateTimeField(auto_now=True) class Meta: ordering = ['-id'] def get_absolute_url(self): return reverse('/ctall')

Is there any way through which I can set the max record updation limit in the models.py level?

Any help OR suggestion on this would be highly appreciated.

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