Re: ModelForm for model that includes multiple items of one kind

Hi,

To connect multiple forms you should use: FormSets 

https://docs.djangoproject.com/en/2.1/topics/forms/formsets/

Or

https://docs.djangoproject.com/en/2.1/topics/forms/modelforms/#using-an-inline-formset-in-a-view

Read about it in the above links.

Regards,

Kiran Capoor

On Sunday, March 31, 2019 at 3:56:58 AM UTC+5:30, Dean Karres wrote:

Hi

I am looking for some advice.  I have a basic Profile model.  It looks something like:

Profile:

first_name

middle_name

last_name

birthday

address_line1

address_line2

city

state

zip

email

phone

I have a ModelForm that goes with this.

This is sufficient for nearly all the cases I am trying to deal with.  However, there are a few special cases in which a person needs to list two or more addresses; two or more email addrs; two or more phone numbers; or, combinations.  

I know just enough about database normalization to think that I need the Profile model plus Address, Email and Phone models and have the Profile have a ForeignKey relation to each of the others.  A la:

Profile:

first_name

middle_name

last_name

birthday

<address-foreign-key>

<email-foreign-key>

<phone-foreign-key>

Address

address_line1

address_line2

City

state

zip

Email

email

Phone

phone

My question is more about the associated ModelForm(s).  First, I currently have a ModelForm for the first Profile model without the foreign keys.  If I break out the address, email and phone portions into separate models do I need to create separate model forms for each new model?  If so would the new Profile ModelFOrm just inherit the ModelForms of the other components. Something like:

class ProfileForm(ModelForm, AddressForm, EmailForm, PhoneForm):

...

The current ModelForm has "clean_<field>" "clean" methods.  Do I keep that in the new Profile form?  Do I put the various "clean" methods in their own model forms and hope that inheritance will pull them in?

Next, how does a ModelForm deal with more than one of the same item -- like more then one address?

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