Hello,
I try to build a kind of call tracker app. The call intaker creates a
new item (main model) and makes some notes (subject, issue and which
printer nr, customer, technician,... all with modelfields) all in one
view. But I am struggling with the model relations and the form
saving. I cannot save anything to the db, thats because one related
object isnt already saved to the db.
I think the problem is the m2m relation between Servicetechnician and
Customer. Can someone please point me to the right direction?
Thank you.
# models
class Servicetechnician(models.Model):
printers = models.ManyToManyField('Printer')
firstname = models.CharField(max_length=30, blank=True)
lastname = models.CharField(max_length=30, blank=True)
email = models.EmailField(blank=True)
telephonenr = models.CharField(max_length=30, blank=True)
...
class Customer(models.Model):
technicians = models.ManyToManyField(Servicetechnician)
name = models.CharField(max_length=30, blank=True)
town = models.CharField(max_length=30, blank=True)
country = models.CharField(max_length=20, blank=True)
...
class Printer(models.Model):
serialnr = models.CharField(max_length=5, blank=True)
productname = models.CharField(max_length=15, blank=True)
customer = models.ForeignKey(Customer)
...
class Fileupload(models.Model):
item = models.ForeignKey('Item')
file = models.FileField(upload_to='uploads/%Y/%m/%d', blank=True)
...
class Item(models.Model):
servicetechnician = models.OneToOneField(Servicetechnician)
customer = models.OneToOneField(Customer)
printer = models.OneToOneField(Printer)
subject = models.CharField(max_length=30, blank=False)
issue = models.TextField(blank=False)
author = models.ForeignKey(User, related_name='item_poster')
...
# view
@staff_member_required
def item_create(request):
if request.method == 'POST':
form = ItemForm(request.POST, request.FILES, prefix='item')
printerform = PrinterForm(request.POST, prefix='printer')
technicianform = ServicetechnicianForm(request.POST,
prefix='technician')
customerform = CustomerForm(request.POST, prefix='customer')
fileform = FileuploadForm(request.POST, request.FILES,
prefix='files')
#import pdb; pdb.set_trace()
if form.is_valid() and printerform.is_valid() and
technicianform.is_valid() and customerform.is_valid() and
fileform.is_valid():
print "all validation passed!"
new_item = form.save(commit=False)
new_customer = customerform.save(commit=False)
new_printer = printerform.save(commit=False)
new_technician = technicianform.save(commit=False)
new_files = fileform.save(commit=False)
new_item.author = request.user
new_item.save()
new_technician.printers = new_printer
new_technician.save()
new_customer.technicians = new_technician
new_customer.save()
new_printer.customer = new_customer
new_printer.save()
for f in request.FILES.getlist('file[]'):
fileupload = Fileupload.objects.create()
upload_file = f
fileupload.file.save(upload_file.name,
upload_file)
new_files.item = new_item
new_files.save
form.save_m2m()
return HttpResponseRedirect('/tracker/')
else:
form = ItemForm(prefix='item')
printerform = PrinterForm(prefix='printer')
technicianform = ServicetechnicianForm(prefix='technician')
customerform = CustomerForm(prefix='customer')
fileform = FileuploadForm(prefix='files')
return render_to_response('tracker/item_create.html', {'form':form,
'fileform':fileform, 'technicianform': technicianform,
'customerform':customerform, 'printerform':printerform},
context_instance=RequestContext(request))
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