django-views

问题 I'm trying to store random variable to Sqlite database in Django, but I get this error: You must not use 8-bit bytestrings unless you use a text_factory that can interpret 8-bit bytestrings (like text_factory = str). It is highly recommended that you instead just switch your application to Unicode strings. Here is my code: random_number = os.urandom(16) SomeModel.objects.filter(id=2).update(number=random_number) Models.py: class SomeModel(models.Model): random = models.CharField(max_length=32

问题 I have a model Dish and a model Menu: class MenuItem(models.Model): dish_name=models.TextField(unique=False) price=models.DecimalField(max_digits=5,decimal_places=2,blank=True) main_ngredient=models.TextField(unique=False) course=models.CharField(max_length=100) menu=models.ForeignKey('Menu') def __unicode__(self): return name class Menu(models.Model): restaurant=models.TextField(unique=False) year=models.IntegerField(unique=False) location=models.TextField(unique=False) status=models

问题 I have a view which generates a PDF file and returns it as a HtmlResponse. Then the suitable URL shows that file. I want to be able to attach that pdf to an e-mail. Which is the best way to do this? Any tips or examples are appreciated! 回答1: You can use EmailMessage.attach() Assuming you have a method create_pdf that creates your PDF, you should be able to do something like this: pdf_content = create_pdf() email = EmailMessage('Hello', 'Body goes here', 'from@example.com', ['to@example.com'])

问题 I am trying to use a Django CreateView and ultimately update a ManyToMany Field if the user selects a certain value. I can get the form to validate, but ultimately it isn't updating the manytomanyfield in the database. Not sure what I'm doing wrong. I have referenced this similar SO issue, Django ManyToMany CreateView Fields In Both Tables but it was of no help to me. I recently found this link...Django CreateView: How to perform action upon save and it seems very close to the issue I'm

问题 I have a Django-based web-app where users congregate and chat with one another. I've just finished writing a feature whereby users can make their own "chat groups", centered around any topic of interest. These could either be private , or publically visible. My next challenge is showing a list of all existing public groups , paginated, and sorted by the most happening group first . After some deep thinking, I've decided that the most happening group is one which sees the most unique visitors

问题 I am using Django 1.7.1 with Python 3.4 . I created a custom user model and now I have a need for users to be able to update their details. What I need is that, when users go to the form to update their details, the form is pre-populated with their data i.e. username, email and so on. So far, the form is showing but not with the current user data. I have the following code: models.py from django.contrib.auth.models import AbstractBaseUser, BaseUserManager, PermissionsMixin ... # Some code

问题 I'm working on an API to use for an iPhone app. In order to like a picture, I'm assuming I need to embed a url in my serializer that can be used to add a like to a photo. Could someone please help me implement this? I am able to view the url, but I'm not sure how to pass the photo's id to the view. This is where I've gotten so far: views.py: @api_view(['POST']) def like_create_api(request, photo_id): serializer = PhotoSerializer(data=request.DATA) if serializer.is_valid(): serializer.object

问题 views.py def when(request): user = request.user report = Report.objects.get(user=request.user) reportform = ReportForm(instance=report) settings = Settings.objects.get(user=request.user) settingsForm = SettingsForm(instance=settings) # settings=Settings.objects.get(user=2) if settings.date_format == '0': date = report.manual_date.strftime('%d/%m/%Y') else: date = report.manual_date.strftime('%m/%d/%Y') if settings.time_format == '0': time = report.manual_time.strftime('%I:%M%p') else: time =

问题 So I am learning from a tutorial for jquery and ajax and till now I have a search form for searching and returning the search results. And it works fine. But when I delete the words from the form or backspace the words, it loads all the status in the list. What do I do to return only when there is some word and to return nothing if there's no word in the form. snippet of status.html: {% block add_account %} <input type="text" id="search" name="search" /> <ul id="search-results"> </ul> {%

问题 So im working on a project and im using json data from a graphite graph and im trying to import it into the django views.py file and then get the value I want in the template. The import will be happening from a remote URL not from directly on the server itself. here is my json: [{"target": "stocks.shared (last: 4204.0)", "datapoints": [[4379.0, 1389225600], [4204.0, 1389312000]]}] This is what my views file will look like def get_context_data(self, **kwargs): context = super(IndexView, self)