django-models

问题 class Ingredient(Model): name = CharField(max_length=55, unique=True) def __str__(self): return self.name class Meta: ordering = ('name',) class Product(Model): name = CharField(max_length=55) def __str__(self): return self.name class Meta: ordering = ('name', ) class ProductIngredient(Model): product = ForeignKey(Product, on_delete=CASCADE, related_name='product_ingredients') ingredient = ForeignKey(Ingredient, on_delete=CASCADE) optional = BooleanField(default=False) class Meta: unique

问题 Please, I am a newbie, if I didn't ask my question well, let me know. I am working on a To-Do List app. Anytime, I add a new task and time to the form on my web app and submit, I get the following error: ValueError at / The view To_do_list_app.views.home didn't return an HttpResponse object. It returned None instead. Below is my views.py file from django.http import HttpResponse from django.shortcuts import render,redirect from .forms import ListForm from .models import List def home(request)

问题 I try to translate Django Admin site and I have a problem with ManyToMany TabularInline . My models.py are: class Doctor(models.Model): (...) specializations = models.ManyToManyField(Specialization, blank=True, verbose_name='Specjalizacje') class Meta: verbose_name = 'Lekarz' verbose_name_plural = 'Lekarze' class Specialization(models.Model): name = models.CharField(max_length=191, verbose_name='Nazwa') class Meta: verbose_name = 'Specjalizacja' verbose_name_plural = 'Specjalizacje' And my

问题 I try to translate Django Admin site and I have a problem with ManyToMany TabularInline . My models.py are: class Doctor(models.Model): (...) specializations = models.ManyToManyField(Specialization, blank=True, verbose_name='Specjalizacje') class Meta: verbose_name = 'Lekarz' verbose_name_plural = 'Lekarze' class Specialization(models.Model): name = models.CharField(max_length=191, verbose_name='Nazwa') class Meta: verbose_name = 'Specjalizacja' verbose_name_plural = 'Specjalizacje' And my

问题 I try to translate Django Admin site and I have a problem with ManyToMany TabularInline . My models.py are: class Doctor(models.Model): (...) specializations = models.ManyToManyField(Specialization, blank=True, verbose_name='Specjalizacje') class Meta: verbose_name = 'Lekarz' verbose_name_plural = 'Lekarze' class Specialization(models.Model): name = models.CharField(max_length=191, verbose_name='Nazwa') class Meta: verbose_name = 'Specjalizacja' verbose_name_plural = 'Specjalizacje' And my

问题 I am getting following error trace when I am trying to run server in python environment: Traceback (most recent call last): File "/home/web/.virtualenvs/kolibri/bin/kolibri", line 5, in <module> from pkg_resources import load_entry_point File "/home/web/.virtualenvs/kolibri/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2927, in <module> @_call_aside File "/home/web/.virtualenvs/kolibri/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2913, in _call_aside

问题 Is there a way to pass a date to datafield that overrides auto_now? I want to only use auto_now if a date is not passed. 回答1: According to the docs: Note that the current date is always used; it’s not just a default value that you can override. https://docs.djangoproject.com/en/2.0/ref/models/fields/#datefield So just don't use auto_now, use default, for example: from django.utils import timezone class YourModel(models.Model): date_approved = models.DateField(default=timezone.now) 来源： https:/

问题 Is there a way to pass a date to datafield that overrides auto_now? I want to only use auto_now if a date is not passed. 回答1: According to the docs: Note that the current date is always used; it’s not just a default value that you can override. https://docs.djangoproject.com/en/2.0/ref/models/fields/#datefield So just don't use auto_now, use default, for example: from django.utils import timezone class YourModel(models.Model): date_approved = models.DateField(default=timezone.now) 来源： https:/

问题 Is there a way to pass a date to datafield that overrides auto_now? I want to only use auto_now if a date is not passed. 回答1: According to the docs: Note that the current date is always used; it’s not just a default value that you can override. https://docs.djangoproject.com/en/2.0/ref/models/fields/#datefield So just don't use auto_now, use default, for example: from django.utils import timezone class YourModel(models.Model): date_approved = models.DateField(default=timezone.now) 来源： https:/

问题 The problem seems so solvable yet it eludes me. Hope I am able to explain my predicament. I am trying to include a jQuery autocomplete in a form. The autocomplete itself is working fine. I am now trying to link it to a model which is something like this: models.py class SupplierCatchment(models.Model): supp = models.ForeignKey(Supplier.....) supp_area = models.ForeignKey(Country, ...) supp_remarks = models.CharField(max_length=150,...) For rendering the form, I am using a model form . Case 1: