possible model relations?
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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MultiFileInput widget
Hi, I have only a few weeks django/web experience and currently struggling with a specific problem. I dont know how to solve it. and therefore I ask you experts. I have an Itemform (ModelForm) with a fileupload field. But I want to upload multiple files with multifileinput (djangosnippet:583). Can I use this widget with my standard model or do I have to create a Fileupload model with a foreignkey relation to the Itemform? -- You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-us...@googlegroups.com. To unsubscribe from this group, send email to django-users+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/django-users?hl=en.
Re: MultiFileInput widget
Okay, I am answering myself. Maybe this info helps someone else.
I created a fileupload model with foreignkey relation.
# models.py
class Item(models.Model):
serialnr = models.CharField(max_length=5, blank=True)
class Fileupload(models.Model):
item = models.ForeignKey(Item)
file = models.FileField(upload_to='uploads/%Y/%m/%d', blank=True)
...
# views.py
def item_create(request):
if request.method == 'POST':
form = ItemForm(request.POST)
fileform = FileuploadForm(request.FILES)
...
form.save()
id = new_item.id
for f in request.FILES.getlist('file[]'):
fileform = Fileupload(file=f)
fileform.item_id = id
fileform.save()
# forms.py
class FileuploadForm(ModelForm):
file = forms.FileField(widget=MultiFileInput, required=False)
class Meta:
model = Fileupload
new_item.save()
return HttpResponseRedirect('/tracker/')
...
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distinct in autocomplete
Hello,
how do I get only distinct values of that query in the autocomplete
field:
def autocomplete_techlastname(request):
if request.GET.has_key('q'):
tags =
Item.objects.filter(techlastname__icontains=request.GET['q'])
[:5]
return HttpResponse('\n'.join(tag.techlastname for tag in tags))
return HttpResponse()
appending distinct seems not to work.
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how do i get access to json data?
Hello django users, after several try outs, i am not able to figure out how to access data in a serialized object. E. g. how do I get the name "Douglas", "Adams" in the example: http://docs.djangoproject.com/en/dev/topics/serialization/#deserialization-of-natural-keys In javascript i can get e. g. the "name": "Mostly Harmless" with: this.fields.name. But how do i get the "author": ["Douglas", "Adams"]? I tried serveral options, but had no luck. -- You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-us...@googlegroups.com. To unsubscribe from this group, send email to django-users+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/django-users?hl=en.
Re: how do i get access to json data?
Thanks for your answer Li.
This solution works for python, I figured this out too.
But how does this work inside a template with javascript?
I use $.getJSON() inside the template to get the data.
Inside the javascript I can access the data with:
this.fields.name
but
this.fields.author
does not work.
Any idea?
On 23 Nov., 15:05, Li You wrote:
> sorry but a mistake.
>
>
>
> On Tue, Nov 23, 2010 at 10:01 PM, Li You wrote:
> > Maybe this is what you want:
>
> > from json import JSONDecoder
> > s = '''{
> > "pk": 1,
> > "model": "store.book",
> > "fields": {
> > "name": "Mostly Harmless",
> > "author": ["Douglas", "Adams"]
> > }
> > }
> > '''
> > d = JSONDecoder().decode(s)
>
> > print a['fields']['author']
>
> ~~~ should be
> print d['fields']['author']
>
>
>
>
>
> > On Tue, Nov 23, 2010 at 9:45 PM, alecx
> > wrote:
> >> Hello django users,
>
> >> after several try outs, i am not able to figure out how to access data
> >> in a serialized object.
> >> E. g. how do I get the name "Douglas", "Adams" in the example:
> >>http://docs.djangoproject.com/en/dev/topics/serialization/#deserializ...
>
> >> In javascript i can get e. g. the "name": "Mostly Harmless" with:
> >> this.fields.name.
> >> But how do i get the "author": ["Douglas", "Adams"]?
> >> I tried serveral options, but had no luck.
>
> >> --
> >> You received this message because you are subscribed to the Google Groups
> >> "Django users" group.
> >> To post to this group, send email to django-us...@googlegroups.com.
> >> To unsubscribe from this group, send email to
> >> django-users+unsubscr...@googlegroups.com.
> >> For more options, visit this group
> >> athttp://groups.google.com/group/django-users?hl=en.
>
> > --
> > Best Regards!
>
> > Li You
> > University of Science and Technology of China
>
> --
> Best Regards!
>
> Li You
> University of Science and Technology of China
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tinymce
Hi, I integrated django-tinymce into my application. Now I can edit the text in the former textarea field. But when I submit the form, the field is empty. I am not able to figure out why the text I wrote in the editor field is not submitted. Has someone a tip for me? Thanks in advance. -- You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-us...@googlegroups.com. To unsubscribe from this group, send email to django-users+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/django-users?hl=en.
