Yes, save_formset() has only those instances whose fields were changed. Sincerely, Pankaj Singh http://about.me/psjinx
On Mon, Feb 4, 2013 at 10:46 PM, Rob van Dam <r...@wieskamp.nl> wrote: > Hi Pankaj, > > Thank you so much!!!! You have saved my day :-) I will be able to test it > tomorrow, and I will let you know if it worked. > > I tested all my previous attempts saving an existing item in Admin. But when > nothing is changed in the admin form, def save_formset is not called...... > > Regards, > > Rob > > > > On 04-02-13 17:26, Pankaj Singh wrote: >> >> Hey Rob, >> >> I tested following code and it works. >> >> #### models.py >> >> from django.db import models >> >> # Create your models here. >> >> class Ticket(models.Model): >> ticketnumber = models.IntegerField() >> total_amount = models.DecimalField(max_digits=7, decimal_places=2, >> blank=True) >> >> def update_total_amount(self): >> total = 0 >> for ti in self.ticketitem_set.all(): >> total += ti.price * ti.amount >> self.total_amount = total >> self.save() >> >> class TicketItem(models.Model): >> name = models.CharField(max_length=30) >> ticket = models.ForeignKey(Ticket) >> price = models.DecimalField(max_digits=7, decimal_places=2) >> amount = models.IntegerField() >> >> >> #### admin.py >> from django.contrib import admin >> from tickets.models import Ticket, TicketItem >> >> >> class TicketItemInline(admin.TabularInline): >> model = TicketItem >> >> class TicketAdmin(admin.ModelAdmin): >> inlines = [TicketItemInline,] >> >> def save_formset(self, request, form, formset, change): >> instances = formset.save(commit=False) >> for instance in instances: >> instance.save() >> formset.save_m2m() >> instance.ticket.update_total_amount() >> >> >> admin.site.register(Ticket, TicketAdmin) >> >> >> I hope it helps. >> >> Sincerely, >> Pankaj Singh >> http://about.me/psjinx >> >> >> On Mon, Feb 4, 2013 at 9:01 PM, Rob van Dam | Camping het Wieskamp >> <r...@wieskamp.nl> wrote: >>> >>> Hi Pankaj, >>> >>> I have tried many things today, but unfortunately I cannot get anything >>> working :-( Can you give me a bit more information on this issue? Any >>> hint >>> would be highly appreciated! >>> >>> I cannot get anything saved in the database. For testing I made this >>> setup >>> (added ordernumber to the Tickets model): >>> >>> >>> class TicketAdmin(admin.ModelAdmin): >>> def save_formset(self, request, form, formset, change): >>> instances = formset.save(commit=False) >>> for instance in instances: >>> instance.ordernumber = 100 >>> instance.save() >>> formset.save_m2m() >>> >>> I expected the value 100 to be saved in the database....but nothing >>> works. >>> >>> Rob >>> >>> >>> >>> >>> On 02-02-13 21:04, Pankaj Singh wrote: >>>> >>>> >>>> >>>> http://stackoverflow.com/questions/8294889/override-save-on-django-inlinemodeladmin >>>> >>>> Sincerely, >>>> Pankaj Singh >>>> http://about.me/psjinx >>>> >>>> >>>> On Sun, Feb 3, 2013 at 1:34 AM, Pankaj Singh <ps.j...@gmail.com> wrote: >>>>> >>>>> Hey Rob, >>>>> >>>>> You can override save_formset() method of ModelAdmin for this. Create >>>>> a method update_total_amount(self) in your Ticket Model. >>>>> >>>>> class TicketAdmin(admin.ModelAdmin): >>>>> def save_formset(self, request, form, formset, change): >>>>> instances = formset.save(commit=False) >>>>> for instance in instances: >>>>> instance.user = request.user >>>>> instance.save() >>>>> formset.save_m2m() >>>>> >>>>> ## call update_total_amount() >>>>> instance.update_total_amount() >>>>> >>>>> Useful Links - >>>>> 1. >>>>> >>>>> https://docs.djangoproject.com/en/1.4/ref/contrib/admin/#django.contrib.admin.ModelAdmin.save_formset >>>>> 2. >>>>> >>>>> https://docs.djangoproject.com/en/1.4/ref/contrib/admin/#django.contrib.admin.ModelAdmin.save_formset >>>>> >>>>> Sincerely, >>>>> Pankaj Singh >>>>> http://about.me/psjinx >>>>> >>>>> >>>>> On Sat, Feb 2, 2013 at 8:29 PM, Rob <r...@wieskamp.nl> wrote: >>>>>> >>>>>> I have two models: >>>>>> >>>>>> class Tickets(models.Model): >>>>>> ticketnumber = models.IntegerField() >>>>>> total_amount = models.DecimalField() >>>>>> >>>>>> class TicketItems(models.Model): >>>>>> name = models.Charfield(max_length=30) >>>>>> ticket = models.ForeignKey(Tickets) >>>>>> price = models.DecimalField() >>>>>> amount = models.IntergerField() >>>>>> >>>>>> I have an inline Adminpage were users can add TicketItems. How do I >>>>>> update >>>>>> the total_amount of model Tickets from all TicketItems on save (price >>>>>> * >>>>>> amount)? >>>>>> >>>>>> Django 1.4 >>>>>> >>>>>> -- >>>>>> You received this message because you are subscribed to the Google >>>>>> Groups >>>>>> "Django users" group. >>>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>>> an >>>>>> email to django-users+unsubscr...@googlegroups.com. >>>>>> To post to this group, send email to django-users@googlegroups.com. >>>>>> Visit this group at http://groups.google.com/group/django-users?hl=en. >>>>>> For more options, visit https://groups.google.com/groups/opt_out. >>>>>> >>>>>> >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "Django users" group. >>> To unsubscribe from this group and stop receiving emails from it, send an >>> email to django-users+unsubscr...@googlegroups.com. >>> To post to this group, send email to django-users@googlegroups.com. >>> Visit this group at http://groups.google.com/group/django-users?hl=en. >>> For more options, visit https://groups.google.com/groups/opt_out. >>> >>> > > -- > You received this message because you are subscribed to the Google Groups > "Django users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to django-users+unsubscr...@googlegroups.com. > To post to this group, send email to django-users@googlegroups.com. > Visit this group at http://groups.google.com/group/django-users?hl=en. > For more options, visit https://groups.google.com/groups/opt_out. > > -- You received this message because you are subscribed to the Google Groups "Django users" group. 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