Passing parameters from partial form to model during save Django - django

Question

I have a model with many fields, for which I am creating two partial forms
#model
class Line_Settings(models.Model):
....
line = models.ForeignKey(Line)
All = models.BooleanField(default=False)
Busy = models.BooleanField(default=False)
MOH = models.CharField(max_length=100, blank=True, null=True)
PLAR = models.CharField(max_length=100, blank=True, null=True)
....
def save(self, commit = True, *args, **kwargs):
....
#Partial model form1
class General(ModelForm):
class Meta:
model = Line_Settings
fields = ('MOH','PLAR')
#Partial model form2
class Common(ModelForm):
class Meta:
model = Line_Settings
fields = ('All','Busy')
I have overwritten the save for the Line_Settings model to do additional logic.
I need to be able to pass some parameters to the overwritten save method to use in my logic.
In my views I fill up the two partials forms with post data and can call save.
call_forwards = Common(request.POST, instance=line_settings)
general = General(request.POST, instance=line_settings)
I need to pass a parameter to the save like so:
call_forwards.save(parameter="value")
general.save(parameter="value")
I have referred to passing an argument to a custom save() method
I can get access to the parameter if I overwrite the save on my partial form.
# overwritten save of partial form
def save(self, parameter, commit=True):
print("In save overwrite Partial form Common "+str(parameter))
#how Can I pass this parameter to the model save overwirite?
super(Common, self).save(commit)
From the partial form, how do I make the parameter reach my original model(Line_Settings) save overwrite?
Can this be done?
Thanks in advance for reading!!

Answer 1

I was able to achieve this by defining a parameter in my original models __init__ method
def __init__(self, *args, **kwargs):
self.parameter= None
super(Line_Settings, self).__init__(*args, **kwargs)
Then in the partial form, I could access this parameter and set it to value passed during save
def save(self, *args, **kwargs):
self.instance.parameter = kwargs.pop('parameter', None)
super(Common, self).save(*args, **kwargs)
In my view I called the save as :
common = Common(request.POST, instance=line_settings)
common.save(parameter="something")