Well, it's not supposed to be bound if you don't pass any data to it the "instance" in the ModelForm (if i remember correctly) just sets the initial values for the fields when you render the form in HTML and modifies that instance when you call "save" on the ModelForm.
On Sun, Jan 3, 2016 at 1:29 AM, Michael Molloy <[email protected]> wrote: > Thank you for your help. I apologize for the typo, but I am calling > is_valid() with the parenthesis: > > > >>> uf = UsersForm(u) > > >>> uf.is_valid() > > Traceback (most recent call last): > > File "<console>", line 1, in <module> > > File > "/var/lib/openshift/5678c24389f5cff0330001cd/python/virtenv/venv/lib64/python3.3/site-packages/django/forms/forms.py" > , line 184, in is_valid > > return self.is_bound and not self.errors > > File > "/var/lib/openshift/5678c24389f5cff0330001cd/python/virtenv/venv/lib64/python3.3/site-packages/django/forms/forms.py" > , line 176, in errors > > self.full_clean() > > File > "/var/lib/openshift/5678c24389f5cff0330001cd/python/virtenv/venv/lib64/python3.3/site-packages/django/forms/forms.py" > , line 392, in full_clean > > self._clean_fields() > > File > "/var/lib/openshift/5678c24389f5cff0330001cd/python/virtenv/venv/lib64/python3.3/site-packages/django/forms/forms.py" > , line 401, in _clean_fields > > value = field.widget.value_from_datadict(self.data, self.files, self. > add_prefix(name)) > > File > "/var/lib/openshift/5678c24389f5cff0330001cd/python/virtenv/venv/lib64/python3.3/site-packages/django/forms/widgets.py" > , line 223, in value_from_datadict > > return data.get(name, None) > > AttributeError: 'Users' object has no attribute 'get' > > > >>> uf.is_valid() > > True > > > As for creating the form instance with the instance keyword, I tried that > first as I saw it in the materials I was reading, but it doesn't work. Note > the code below. is_bound = False if I use instance=u. If I just pass the > Users instance without the 'instance' keyword, is_bound returns True. > > >>> u = Users() > > >>> u.email = '[email protected]' > > >>> uf = UsersForm(u) > > >>> uf.is_bound > > True > > >>> uf = UsersForm(instance=u) > > >>> uf.is_bound > > False > > > --M > > On Saturday, January 2, 2016 at 10:16:38 PM UTC-6, Vijay Khemlani wrote: >> >> "First, why does uf.is_valid() return" >> >> because you called "uf.is_valid" (note the lack of parenthesis), that's >> just a reference to the method and does not call it. >> >> "Second, why does uf.save() return that stacktrace the first time I call >> it, but the second time I call it, the object saves? " >> >> As far as I know ModelForm subclasses take a dictionary as a first >> parameter, not the object itself, you would need to do something like this: >> >> uf = UsersForm(instance=u) >> >> I don't know why it works the second time (if it does indeed work) >> >> >> On Sun, Jan 3, 2016 at 1:13 AM, Sergiy Khohlov <[email protected]> wrote: >> >>> Sorry I missed. You have valid unknown at the start. Why are you not >>> used django user model and author? Study purpose ,? >>> 3 січ. 2016 05:53 "Michael Molloy" <[email protected]> пише: >>> >>> I'm not sure what could be wrong with the database settings. If I just >>>> create an instance of the model and save it, it saves to the database: >>>> >>>> >>>> <https://lh3.googleusercontent.com/-jyOjeZShpXU/VoibBXC7gPI/AAAAAAAAAFU/WeJ9TBxQemQ/s1600/Screen%2BShot%2B2016-01-02%2Bat%2B9.52.18%2BPM.png> >>>> >>>> >>> u.email = '[email protected]' >>>> >>>> >>> u.save() >>>> >>>> >>>> >>>> <https://lh3.googleusercontent.com/-jyOjeZShpXU/VoibBXC7gPI/AAAAAAAAAFU/WeJ9TBxQemQ/s1600/Screen%2BShot%2B2016-01-02%2Bat%2B9.52.18%2BPM.png> >>>> >>>> --M >>>> >>>> On Saturday, January 2, 2016 at 9:48:39 PM UTC-6, Sergiy Khohlov wrote: >>>>> >>>>> Is_valid is working. You have >>>>> problem with save. Check database setting. >>>>> >>>>> 3 січ. 2016 04:18 "Michael Molloy" <[email protected]> пише: >>>>> >ve >>>>> > This is running in Openshift with Python 3.3 and Django 1.8.4 >>>>> > >>>>> > Here's my model: >>>>> > >>>>> > class Users(models.Model): >>>>> > first_nm = models.CharField('First Name', max_length=100) >>>>> > last_nm = models.CharField('Last Name', max_length=100) >>>>> > email = models.CharField('Email Address', max_length=200, >>>>> unique=True) >>>>> > >>>>> > >>>>> > Here's my form: >>>>> > >>>>> > class UsersForm(forms.ModelForm): >>>>> > class Meta: >>>>> > model = Users >>>>> > fields = ['first_nm', 'last_nm', 'email'] >>>>> > >>>>> > >>>>> > >>>>> > When I run the shell inside Openshift, this is what happens: >>>>> > >>>>> > Python 3.3.2 (default, Mar 20 2014, 20:25:51) >>>>> > >>>>> > [GCC 4.4.6 20120305 (Red Hat 4.4.6-4)] on linux >>>>> > >>>>> > Type "help", "copyright", "credits" or "license" for more >>>>> information. >>>>> > >>>>> > (InteractiveConsole) >>>>> > >>>>> > >>>>> > >>> from django.conf import settings >>>>> > >>>>> > >>> from package.forms import UsersForm >>>>> > >>>>> > >>> from package.models import Users >>>>> > >>>>> > >>>>> > >>> u = Users() >>>>> > >>>>> > >>> u.first_nm = 'First' >>>>> > >>>>> > >>> u.last_nm = 'Last' >>>>> > >>>>> > >>> u.email = '[email protected]' >>>>> > >>>>> > >>> uf = UsersForm(u) >>>>> > >>>>> > >>> uf.is_bound >>>>> > >>>>> > True >>>>> > >>>>> > >>> uf.is_valid >>>>> > >>>>> > <bound method UsersForm.is_valid of <UsersForm bound=True, >>>>> valid=Unknown, fields=(first_nm;last_nm;email)>> >>>>> > >>>>> > >>>>> > >>> uf.save() >>>>> > >>>>> > >>>>> > Traceback (most recent call last): >>>>> > >>>>> > File "<console>", line 1, in <module> >>>>> > >>>>> > File >>>>> "/var/lib/openshift/5678c24389f5cff0330001cd/python/virtenv/venv/lib/python3.3/site-packages/Django-1.8.4-py3.3.egg/django/forms/models.py", >>>>> line 463, in save >>>>> > >>>>> > construct=False) >>>>> > >>>>> > File >>>>> "/var/lib/openshift/5678c24389f5cff0330001cd/python/virtenv/venv/lib/python3.3/site-packages/Django-1.8.4-py3.3.egg/django/forms/models.py", >>>>> line 84, in save_instance >>>>> > >>>>> > if form.errors: >>>>> > >>>>> > File >>>>> "/var/lib/openshift/5678c24389f5cff0330001cd/python/virtenv/venv/lib/python3.3/site-packages/Django-1.8.4-py3.3.egg/django/forms/forms.py", >>>>> line 176, in errors >>>>> > >>>>> > self.full_clean() >>>>> > >>>>> > File >>>>> "/var/lib/openshift/5678c24389f5cff0330001cd/python/virtenv/venv/lib/python3.3/site-packages/Django-1.8.4-py3.3.egg/django/forms/forms.py", >>>>> line 392, in full_clean >>>>> > >>>>> > self._clean_fields() >>>>> > >>>>> > File >>>>> "/var/lib/openshift/5678c24389f5cff0330001cd/python/virtenv/venv/lib/python3.3/site-packages/Django-1.8.4-py3.3.egg/django/forms/forms.py", >>>>> line 401, in _clean_fields >>>>> > >>>>> > value = field.widget.value_from_datadict(self.data, self.files, >>>>> self.add_prefix(name)) >>>>> > >>>>> > File >>>>> "/var/lib/openshift/5678c24389f5cff0330001cd/python/virtenv/venv/lib/python3.3/site-packages/Django-1.8.4-py3.3.egg/django/forms/widgets.py", >>>>> line 223, in value_from_datadict >>>>> > >>>>> > return data.get(name, None) >>>>> > >>>>> > AttributeError: 'Users' object has no attribute 'get' >>>>> > >>>>> > >>>>> > >>> uf.save() >>>>> > >>>>> > <Users: Users object> >>>>> > >>>>> > >>>>> > First, why does uf.is_valid() return >>>>> > >>>>> > >>>>> > <bound method UsersForm.is_valid of <UsersForm bound=True, >>>>> valid=Unknown, fields=(first_nm;last_nm;email)>> >>>>> > >>>>> > >>>>> > the first time I call it, but on subsequent calls, uf.is_valid() >>>>> returns True? >>>>> > >>>>> > >>>>> > Second, why does uf.save() return that stacktrace the first time I >>>>> call it, but the second time I call it, the object saves? >>>>> > >>>>> > >>>>> > Third, even though the Users object saves, the only value in the >>>>> database for that row is the primary key. Neither the names nor the email >>>>> field is saved. >>>>> > >>>>> > >>>>> > >>>>> > I'm working through the Django Unchained book, and I'm also looking >>>>> at the Django tutorial on djangoproject.com, and it looks to me like >>>>> I'm doing everything that I'm supposed to, but obviously I'm missing >>>>> something. >>>>> > >>>>> > >>>>> > --Michael >>>>> > >>>>> > >>>>> > >>>>> > -- >>>>> > 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 [email protected]. >>>>> > To post to this group, send email to [email protected]. >>>>> > Visit this group at https://groups.google.com/group/django-users. >>>>> > To view this discussion on the web visit >>>>> https://groups.google.com/d/msgid/django-users/dd08dc98-e3af-49c8-b549-c5dc4e72d3d6%40googlegroups.com >>>>> . >>>>> > For more options, visit https://groups.google.com/d/optout. >>>>> >>>> -- >>>> 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 [email protected]. >>>> To post to this group, send email to [email protected]. >>>> Visit this group at https://groups.google.com/group/django-users. >>>> To view this discussion on the web visit >>>> https://groups.google.com/d/msgid/django-users/72973c30-8cde-497d-822e-d3b01d3bc3ab%40googlegroups.com >>>> <https://groups.google.com/d/msgid/django-users/72973c30-8cde-497d-822e-d3b01d3bc3ab%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> . >>>> For more options, visit https://groups.google.com/d/optout. >>>> >>> -- >>> 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 [email protected]. >>> To post to this group, send email to [email protected]. >>> Visit this group at https://groups.google.com/group/django-users. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/django-users/CADTRxJN%3D%2BPd9%2BbS_EqOe%3DdrDpO--OUq8fupp06SrRg-mV0Hi7g%40mail.gmail.com >>> <https://groups.google.com/d/msgid/django-users/CADTRxJN%3D%2BPd9%2BbS_EqOe%3DdrDpO--OUq8fupp06SrRg-mV0Hi7g%40mail.gmail.com?utm_medium=email&utm_source=footer> >>> . >>> >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- > 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 [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/django-users. > To view this discussion on the web visit > https://groups.google.com/d/msgid/django-users/5ede86ea-413d-4d52-b5aa-d7f39d271a5a%40googlegroups.com > <https://groups.google.com/d/msgid/django-users/5ede86ea-413d-4d52-b5aa-d7f39d271a5a%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > For more options, visit https://groups.google.com/d/optout. > -- 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/django-users. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/CALn3ei2U0bw58eU3noV%3Du1p9KgM%3Di46LQaC0X2vYBiuvuee70A%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
