Example of Giant Conditional in Django Model

models.py

from __future__ import unicode_literals

from django.conf import settings
from django.db import models
from django.utils import timezone

import numpy as np

from calendar import Calendar
from charts import HeatMap, PieChart
from exceptions import IncompleteDataException

class Visualization(models.Model):
    name = models.CharField(primary_key=True, max_length=200)
    description = models.TextField()
    position = models.IntegerField(default=200)

    def __repr__ (self):
        return self.name

    def __str__ (self):
        return self.name
    
    def from_data(name, csvfile):
      if name == "infection_rates":
        department_instances = []
        infection_type = []
        
        with open csvfile as file:
          if file["department"] and file["type"]:
            department_instances = np.array(file["department"])
            infection_type = np.array(file["type"])
          else:
            return IncompleteDataException("Please include a department and a type column in your CSV.")
        
        map = HeatMap(list(zip(department_instances, infection_type)))
        return map.to_svg()
      if name == "family_visits":
        #...similar rigamarole 
      if name == "food_requests":
        #...similar rigamarole