Django dynamic model fields dependent on uploaded data in other model - django

Question

I would like to create a model with fields that correspond to the column names of a csv file that is uploaded by the user.
I use the model CsvCreate to let the user upload a csv file and to create instances of the model Data, where an instance is a row in the csv file. This works fine, but I have to specify the fields in Data beforehand. However, the column names in the csv file could vary. What I want is to have a model with dynamic fields that are dependent on the uploaded csv file.
Model CsvCreate:
class CsvCreate(models.Model):
file_name = models.FileField(upload_to='csvs')
uploaded = models.DateTimeField(auto_now_add=True)
selected = models.BooleanField(default=False)
measurement_number = models.IntegerField(blank=True, null=True)
notes = models.TextField(blank=True, null=True)
dataset = models.ForeignKey('Dataset', on_delete=models.CASCADE)
units = models.CharField(max_length=100, blank=True, null=True
)
def __str__(self):
return f"File name: {self.file_name}, file id: {self.id}, uploaded at {self.uploaded}, selected: {self.selected}"
def save_csvs(self):
obj = self
with open(obj.file_name.path, 'r') as f:
reader = csv.reader(f)
values = [obj]
units = []
dict_list = []
for i, row in enumerate(reader):
if i < 2:
pass
elif i == 2:
for i in range(0,len(row)):
units.append(row[i])
else:
for i in range(0,len(row)):
values.append(row[i])
data_dict = dict(zip(parameters.parameters, values))
dict_list.append(data_dict)
values = [obj]
django_list = [Data(**vals) for vals in dict_list]
Data.objects.bulk_create(
django_list
)
obj.activated = True
obj.save()
self.measurement_number = str(self.file_name)[10:13]
self.units = units
self.save()
PlotCreate.objects.create(y_parameter=['M', 'n', 'pa_inl', 'TurboSpeed', 'lambda_AF', 'EGRPosAct', 'VGTPositionAct',
'THVPosAct', 'IgnitionEndAngleCyl1', 'Inj1DurationCyl1'])
model Data:
class Data(models.Model):
csv = models.ForeignKey('CsvCreate', on_delete=models.SET_NULL, null=True, blank=True)
Date = models.CharField(max_length=100, null=True, blank=True)
Time_clock = models.CharField(max_length=100, null=True, blank=True)
M = models.FloatField(null=True, blank=True)
T_dem_D = models.FloatField(null=True, blank=True)
n = models.FloatField(null=True, blank=True) ....