将写代码过程中较好的代码做个记录，下面代码段是关于Django CheatSheet的代码，希望能对大家也有帮助。
from django.http import HttpResponseRedirect
from django.shortcuts import render_to_response, get_object_or_404
from django.contrib.auth.models import User
from django.http import HttpRequest
from django.conf import settings
request.GET.keys()
return render_to_response('content/auktionen/erstellen/wizard/zusammenfassung.html', locals())
return render('content/auktionen/erstellen/cc_wizard/zusammenfassung.html', locals(), request)
return HttpResponseRedirect('/login/?next=%s' % request.path)
request.GET.get('q', '')
username = request.POST['username']
request.method == 'POST'
HttpRequest.is_ajax()
p = get_object_or_404(Poll, pk=poll_id)
get_list_or_404()
return render_to_response('polls/detail.html', {'poll': p})
#------------- User ---------------------
if request.user.is_authenticated():
#User objects have two many-to-many fields: models.User. groups and user_permissions. User objects can access their related #objects in the same way as any other Django model:
myuser.groups = [group_list]
myuser.user_permissions = [permission_list]
from django.contrib.auth.decorators import user_passes_test
@user_passes_test(lambda u: u.has_perm('polls.can_vote'))
def my_view(request):
from django.contrib.auth.decorators import permission_required
def my_view(request):
# ...
my_view = permission_required('polls.can_vote', login_url='/loginpage/')(my_view)
#-------------Model--------------------
cheese_blog = Blog.objects.get(name="Cheddar Talk")
Entry.objects.all()
Entry.objects.filter(pub_date__year=2006)
Blog.objects.filter(entry__author__name='Lennon')
>>> b = Blog.objects.get(id=1)
>>> b.entry_set.all() # Returns all Entry objects related to Blog.
#Many to Many
e = Entry.objects.get(id=3)
e.authors.all() # Returns all Author objects for this Entry.
e.authors.count()
e.authors.filter(name__contains='John')
a = Author.objects.get(id=5)
a.entry_set.all() # Returns all Entry objects for this Author.
#----------- Templates -------------
{% if user.is_authenticated %}
{% for group in user.groups.all %}
{{group}}
{% endfor %}
settings.LOGIN_URL.
#-------------Forms-------------------
from django import forms
from django.forms import ModelForm
class ContactForm(forms.Form):
subject = forms.CharField(max_length=100)
message = forms.CharField()
cc_myself = forms.BooleanField(required=False)
f = ContactForm({'subject': 'hello'})
def contact(request):
if request.method == 'POST': # If the form has been submitted...
form = ContactForm(request.POST) # A form bound to the POST data
if form.is_valid(): # All validation rules pass
# Process the data in form.cleaned_data
# ...
return HttpResponseRedirect('/thanks/') # Redirect after POST
else:
form = ContactForm() # An unbound form
return render_to_response('contact.html', {
'form': form,
})
#------
#-----
#----
#----
class CommentForm(forms.Form):
name = forms.CharField(
widget=forms.TextInput(attrs={'class':'special'}))
url = forms.URLField()
comment = forms.CharField(
widget=forms.TextInput(attrs={'size':'40'}))
#----Model Forms-----
# Create the form class.
class ArticleForm(ModelForm):
class Meta:
model = Article
# Creating a form to add an article.
form = ArticleForm()
# Creating a form to change an existing article.
article = Article.objects.get(pk=1)
form = ArticleForm(instance=article)
# Create a form instance from POST data.
f = ArticleForm(request.POST)
# Save a new Article object from the form's data.
new_article = f.save()
# Create a form to edit an existing Article.
a = Article.objects.get(pk=1)
f = ArticleForm(instance=a).save()
# Create a form to edit an existing Article, but use
# POST data to populate the form.
a = Article.objects.get(pk=1)
f = ArticleForm(request.POST, instance=a)
f.save()
#------
class Musician(models.Model):
id = models.AutoField(primary_key=True)
first_name = models.CharField("Person's first name", max_length=30)
poll = models.ForeignKey(Poll)
toppings = models.ManyToManyField(Topping)
gender = models.CharField(max_length=1, choices=(('M', 'Male'),('F', 'Female'))
class Meta:
ordering = ["horn_length"]
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