Please don't abuse this mailing list as an "advance support channel".
On Friday, November 17, 2017 at 7:34:48 AM UTC-5, [email protected] wrote: > > Hello, > > First, I apologize for posting on Django Developers but I asked on Django > Users, Django IRC, stackoverflow (in multiple ways/times) and I'm blocked > for more than 2 weeks. > > I think the question, is too advanced for the other forums/groups and > hope someone here can help me. > > > I have two models Category and Products. > > > - a Product can have multiple Categories > - a Category can have multiple Products. > - Categories have a circular Foreign key, to itself. > - not all Categories have the same depth level > > > Example: > > Category A > - Category A_1 > - category A_2 > - Category A_2_1 > Category B > Category C > - Category C_1 > > > class Product: > categories = models.ManyToManyField( > Category) > name = models.CharField(max_length=255) > > class Category: > categories = models.ForeignKey(self) > name = models.CharField(max_length=255) > > As Form I use a ModelForm: > > class ProductForm(ModelForm): > > class Meta: > model = Product > fields = ['categories', 'name', 'short_description', > 'description'] > widgets = { > 'categories': MyWidget, > } > > *What I want to achieve:* > > I want to implement a conditional select (narrow options): > > > 1. Only top parent Categories(level 0 A,B,C) are available > 2. The user select a parent Category. If the parent has children a > new Select box appear with his children(category level 1 A1,C1) > 3. The user select a level 1 Category (A1,C1). If the parent has > children a new Select box appear with his children(level 2 A2) > > > > - The process is repeated until no children are > availavable(recursive), an user select the "smallest" category in the tree > - A new button is available for the user to add more categories and > start the 1-3 process again > - I want to do the select,add new select using JavaScript > - On Form Submit I want to send only the last children categories > > > > Options I thought: > > > 1. Change the ManyToMany coresponding default Fields - looks like > there are no good hooks and/or inheritance > 2. Use a non-default custom Field instean of ManytoMany(like > Charfield) - more complex on clean,saving Form > 3. Change/Inherit the SelectMultiple Widget. My issues is how to send > the data to the default Field on submit, and get/show it on edit > > > I need some help as code and indication how to do this. > -- You received this message because you are subscribed to the Google Groups "Django developers (Contributions to Django itself)" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/django-developers. To view this discussion on the web visit https://groups.google.com/d/msgid/django-developers/9980064f-bb4c-49f6-bde5-713ed5042d5b%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
