django

问题 What does the coerce argument do in django forms? I've read the documentation, but its not very helpful, so a good explanation with a few examples of use cases would be helpful. To quote the documentation: A function that takes one argument and returns a coerced value. Examples include the built-in int, float, bool and other types. Defaults to an identity function. 回答1: TypedChoiceField is just like ChoiceField, except ChoiceField always return unicode. With TypedChoiceField you pass a

问题 Here is what I have currently: urls.py: ... url(r'this/is/relative', 'myapp.views.callview', name='myapp_callview'), ... views.py: def callview(request, **kwargs): # I can get the complete url by doing this print request.build.absolute_uri() # Prints: https://domain:8080/myapp/this/is/relative # How do I just get: /myapp/this/is/relative or even /this/is/relative I would like to extract the relative uri from the view. I could just use regex, but I think there is already something out there

问题 I am stuck in django's group module can any one tell me how to solve it. my problem is now i'm dispalying the username of the logged-in user, i want to display group-name and the profiles present in that group along with the username.and my views are like this, def user(request): context = {'user': request.user} return render_to_response('username.html', context, context_instance=RequestContext(request)) now what do I need to add in order to achieve my requirement forms.py class LoginForm

问题 i want to have default value in my form which should be current user's choice. For example, user chooses to give 5 for a movie and he should see 5 in form until he changes it. views.py class MovieDetailView(FormMixin, DetailView): model = Movie template_name = 'main/detail_movie.html' context_object_name = 'movie' form_class = RateForm def get_context_data(self, **kwargs): context = super(MovieDetailView, self).get_context_data(**kwargs) context['form'] = RateForm(initial={'movie': self

问题 i want to have default value in my form which should be current user's choice. For example, user chooses to give 5 for a movie and he should see 5 in form until he changes it. views.py class MovieDetailView(FormMixin, DetailView): model = Movie template_name = 'main/detail_movie.html' context_object_name = 'movie' form_class = RateForm def get_context_data(self, **kwargs): context = super(MovieDetailView, self).get_context_data(**kwargs) context['form'] = RateForm(initial={'movie': self

问题 Hi I'm having a problem about referring to uploaded images in HTML. I'm using ImageField to save profile pictures : picture = models.ImageField(upload_to='stories/static/stories/profile_images/', blank=True) As you can see, It'll upload to <App folder>/static/stories/profile_images/ Then I refer it in HTML like this : <div class="profilepic" style="background-image: url('/{{ x.writer.picture }}');"></div> Which directs to ROOT/stories/static/stories/profile_images/.jpg Instead of ROOT/static

问题 I want to make a queryset on a field in an inline formset .. I have Inovice and Product models and InvoiceDetails model to link the manytomany relation between them. here are the models: class Invoices(models.Model): """The Invoice Creation Class.""" invoice_number = models.CharField( _('invoice_number'), max_length=100, unique=True, null=True) .... class Products(models.Model): """Product Creation Class.""" company = models.ForeignKey(Company, default=1) barcode = models.CharField(_('barcode

问题 I want to make a queryset on a field in an inline formset .. I have Inovice and Product models and InvoiceDetails model to link the manytomany relation between them. here are the models: class Invoices(models.Model): """The Invoice Creation Class.""" invoice_number = models.CharField( _('invoice_number'), max_length=100, unique=True, null=True) .... class Products(models.Model): """Product Creation Class.""" company = models.ForeignKey(Company, default=1) barcode = models.CharField(_('barcode

问题 I have a dataframe with table style that I created : tableyy = final.style.set_table_attributes('border="" class = "dataframe table table-hover table-bordered"').set_precision(10).render() I have go through this Coloring Cells in Pandas , Conditionally change background color of specific cells, Conditionally format Python pandas cell, and Colour cells in pandas dataframe, I still not able to set a cell with color not the whole dataframe without any condition. Anyone have any ideas, I try this

问题 I have a dataframe with table style that I created : tableyy = final.style.set_table_attributes('border="" class = "dataframe table table-hover table-bordered"').set_precision(10).render() I have go through this Coloring Cells in Pandas , Conditionally change background color of specific cells, Conditionally format Python pandas cell, and Colour cells in pandas dataframe, I still not able to set a cell with color not the whole dataframe without any condition. Anyone have any ideas, I try this