django order_by query set, ascending and descending
网页2016年6月10日 · Adding the - will order it in descending order. You can also set this by adding a default ordering to the meta of your model. This will mean that when you do a query you just do MyModel.objects.all() and it will come out in the correct order.
Django Query using .order_by () and .latest () - Stack Overflow
网页2010年9月17日 · instances = MyModel.objects.all().order_by('creation_date') And then later I wanted instances.latest(), but it would not give me the correct instance, in fact it gave me the first instance. Only when I set order_by to -creation_date or actually removed the order_by from the query did .latest() give me the correct instance. This also happens ...
Django: OperationalError No Such Table - Stack Overflow
网页I'm building a fairly simple application, research, in my Django project that uses Django-CMS. (It's my first ground-up attempt at a project/application.) Its main purpose is to store various intellectual assets (i.e article, book, etc. written by a researcher).
python - Order in django migrations - Stack Overflow
网页2016年4月11日 · Django tries to create a consistent migration order by first ordering all dependencies in a single migration in alphabetical order, and then using a depth-first search to create the final migration plan. Since the migration plan is always resolved at runtime, a single change may occasionally have a big impact on the final migration plan.
python - Django - Ordering by a foreign key - Stack Overflow
网页2016年10月2日 · from collections import OrderedDict qs = Movie.objects.order_by('-trailer__date') movies = OrderedDict() for x in qs: if x.id not in movies: movies[x.id] = x movies = movies.values() It was unclear what order you wanted the movies in when they had multiple trailers, so I guessed it was based on the earliest trailer.
python - Using the URLconf defined in first_project.urls, Django …
网页That looks like you're using old-style, Django 1, URL patterns, when this was changed (simplified) in Django 2. I guess the tutorial you're following is an old one. Try path('/',views.index,name='index') instead
OperationalError, no such column. Django - Stack Overflow
网页2014年10月11日 · In Django 1.7, the functionality of south was integrated directly into Django. When working with migrations, the process is a bit different. When working with migrations, the process is a bit different.
Ordering admin.ModelAdmin objects in Django Admin
网页Django, by default, orders the models in admin alphabetically. So the order of models in Event admin is Epic, EventHero, EventVillain, Event. Instead you want the order to be. EventHero, EventVillain, Epic then event. The template used to render the admin index page is admin/index.html and the view function is ModelAdmin.index.
Define an order for ManyToManyField with Django
网页On Django 2.0, the accepted answer of Francis Yaconiello works well with the exception of a warning caused by the max_length argument for the order field of class DepartmentPeople. Django ignores max_length for integer fields, and will warn you in Django 1.8+. I would add a unique_together entry in the Meta subclass. class Meta: #...
Django1.4: How to use order_by in template? - Stack Overflow
网页2013年2月15日 · The order_by needs at least one argument, and Django does not allow you to pass arguments to a function or method inside a template. Some alternatives are: Use Jinja2 template engine instead of Django's one (Jinja2 will let you pass arguments to methods and is said to perform better) order the dataset in the view