django-views

问题 I have a model that looks like this: from django.db import models from django.contrib.auth.models import User class Application(models.Model): STATUS_CHOICES = ( (u'IP',u'In Progress'), (u'C',u'Completed')) status = models.CharField(max_length=2 ,choices=STATUS_CHOICES, default='IP') title = models.CharField(max_length = 512) description = models.CharField(max_length = 5120) principle_investigator = models.ForeignKey(User, related_name='pi') And I want to use a generic ListView that lists the

问题 I have a view like this: def form1(request): if request.method == 'POST': form = SyncJobForm(request.POST) if form.is_valid(): # do something in_progress = True return render_to_response('form1.html', {'in_progress': in_progress}) I would like to know how to set it to refresh the template after is done with the view process. Like rendering the page after its done: in_progress = True return render_to_response('form1.html', {'in_progress': in_progress}) # after its finished finished = True

问题 how to use not like in django queries Model.objects.filter(keywords not like "null" or "undefined") select * from model where keywords not like "%undefined%" or keywords not like "%null%"; 回答1: use the exclude function and Q objects Model.objects.exclude(Q(keyword__contains='undefined') | Q(keyword__contains='null')) 来源： https://stackoverflow.com/questions/4193097/django-not-like-statement

问题 I want to override the templates/admin/change_list_results.html and templates/admin/change_list.html templates for just one of my models. How do I tell the admin to differentiate this model from all the others in my app and render a different change template than the default? If I just edit change_list_results.html then all the models in the admin views will reflect my changes. 回答1: You can, see documentation here. The short version is that you need a custom template at admin/your-app-name

问题 After changing the view function without runserver again, and press F5 to refresh the page, Django will not reload the new view but use the previous one. but if you change the template, Django always uses the new one. So, Is there a way to make Django reload the view every time the user refresh the page, I think that is very convenient for develop to modify the view function frequently. 回答1: If you are running django using the dev server (./manage.py runserver) then it will always reload when

问题 I am currently learning Django. Until now I was working with Django 1.1 but now I am working with Django 2.0. Django 2.0 uses path() instead of url() and I don't quiet understand that. In Django 1.1 my urls looked like this: url(r'^about/$', views.AboutView.as_view(), name='about'), Now with Django 2 it looks like this path('about/', views.AboutView.as_view(), name='about'), So far so good but I just don't undertand how I can convert this url(r'^post/(?P<pk>\d+)$', views.PostDetailView.as

问题 I am new in django rest api developement. I have two models one is category and another is subcategories. Here is my models class Category(models.Model): title = models.Charfield() brief = models.TextField() subcategories = model.ManyToManyField('Subcategory', blank=True) My serializer class class CategorySerializer(serializers.ModelSerializer): title= serializer.Charfield() subcategories = Relatedfield(many=True) Now in view def post(self, request, format = None): data=request.DATA serialize

问题 models.py class Keyword(models.Model): name=models.CharField(max_length=500,unique=True) image = models.ImageField(upload_to='keywords/', blank=True, null=True) mood=models.ManyToManyField(Mood,blank=True) def __str__(self): return str(self.name) class ItemVariation(models.Model): restaurant=models.ForeignKey(Restaurant,on_delete=models.CASCADE) items_id=models.ForeignKey(Item,on_delete=models.CASCADE) price=models.IntegerField(blank=True,null=True,default=0) item_code=models.CharField(max

问题 models.py class Keyword(models.Model): name=models.CharField(max_length=500,unique=True) image = models.ImageField(upload_to='keywords/', blank=True, null=True) mood=models.ManyToManyField(Mood,blank=True) def __str__(self): return str(self.name) class ItemVariation(models.Model): restaurant=models.ForeignKey(Restaurant,on_delete=models.CASCADE) items_id=models.ForeignKey(Item,on_delete=models.CASCADE) price=models.IntegerField(blank=True,null=True,default=0) item_code=models.CharField(max

问题 models.py class Keyword(models.Model): name=models.CharField(max_length=500,unique=True) image = models.ImageField(upload_to='keywords/', blank=True, null=True) mood=models.ManyToManyField(Mood,blank=True) def __str__(self): return str(self.name) class ItemVariation(models.Model): restaurant=models.ForeignKey(Restaurant,on_delete=models.CASCADE) items_id=models.ForeignKey(Item,on_delete=models.CASCADE) price=models.IntegerField(blank=True,null=True,default=0) item_code=models.CharField(max