我有两个出版物和员工模型：
class Publication(models.Model):
BOOK_CHAPTER = 1
ARTICLE = 2
PUBLICATION_CHOICES = (
(BOOK_CHAPTER, 'Book chapter'),
(ARTICLE, 'Article'),
)
publication_type = models.IntegerField(choices=PUBLICATION_CHOICES)
article_title = models.CharField(max_length=250, help_text='Limited to 250 characters. May also be used for book chapter titles.')
slug = models.SlugField(help_text='Suggested value automatically generated from title.')
primary_author = models.ForeignKey('Employee', limit_choices_to={'employee_type': 1}, help_text='Most of the time, this will be the faculty member to whom the publication is tied.')
authors = models.CharField(max_length=250, help_text='Limited to 250 characters. Please adhere to accepted format for style. Include current employee in this list.', blank=True)
journal_name = models.CharField(max_length=250, help_text='Limited to 250 characters. May also be used for book titles.')
journal_volume = models.IntegerField(max_length=3, blank=True, null=True)
journal_issue = models.IntegerField(max_length=3, blank=True, null=True)
journal_pub_date = models.DateField(help_text='To specify only the year, simply type in the date using the following format: 2011-01-01.')
journal_page_range = models.CharField(max_length=50, help_text='Limited to 50 characters.', blank=True)
editors = models.CharField(max_length=250, help_text='Limited to 250 characters.', blank=True)
publisher = models.CharField(max_length=250, help_text='Limited to 250 characters.', blank=True)
location_of_publication = models.CharField(max_length=250, help_text='Limited to 250 characters.', blank=True)
abstract = models.TextField(blank=True)
notes = models.TextField(blank=True)
external_link = models.URLField(blank=True, help_text='Link to the article on the publication\'s website.')
downloadable_version = models.ForeignKey(Document, blank=True, null=True)
和
class Employee(models.Model):
FACULTY = 1
ADMINISTRATIVE_SUPPORT = 2
RESEARCH_SUPPORT = 3
POSTDOCS = 4
EMPLOYEE_CHOICES = (
(FACULTY, 'Faculty'),
(ADMINISTRATIVE_SUPPORT, 'Administrative support'),
(RESEARCH_SUPPORT, 'Research support'),
(POSTDOCS, 'Postdocs'),
)
user = models.ForeignKey(User, unique=True, help_text="Select a user if this employee is able to update their own profile information.", blank=True, null=True)
first_name = models.CharField(max_length=200)
middle_name = models.CharField(max_length=50, help_text="Limited to 50 characters.", blank=True)
last_name = models.CharField(max_length=200)
slug = models.SlugField(unique=True, help_text='Will populate from a combination of the first, middle and last names.')
title = models.CharField(max_length=200, help_text="Limited to 200 characters.")
previous_position = models.CharField(max_length=350, help_text="Limited to 350 characters.", blank=True)
email = models.EmailField()
office_phone_number = PhoneNumberField(null=True, blank=True)
mobile_phone_number = PhoneNumberField(null=True, blank=True)
office = models.CharField(max_length=50, help_text="Your office number or room name. Limited to 50 characters.", blank=True)
website = models.URLField(blank=True)
job_description = models.TextField(help_text='A description of your work or research. No HTML is allowed. If formatting is needed, please use <a href="http://daringfireball.net/projects/markdown/syntax">Markdown syntax</a>.', blank=True)
job_description_html = models.TextField(blank=True, editable=False)
job_description_summary = models.CharField(max_length=250, help_text="A brief summary of your work or research. Limited to 250 characters.")
is_currently_employed = models.BooleanField(default=True)
related_links = generic.GenericRelation(RelatedLink, blank=True)
employee_type = models.IntegerField(choices=EMPLOYEE_CHOICES)
photo = models.ImageField(upload_to='images/profiles/mugshots', blank=True)
lead_image = models.ImageField(upload_to='images/profiles/graphics', blank=True)
resume_or_cv = models.ForeignKey(Document, blank=True, null=True)
sites = models.ManyToManyField(Site)
我希望能够显示员工的所有出版物。以下是我现在正在使用的观点：
from django.shortcuts import get_object_or_404
from django.views.generic import ListView
from cms.employees.models import Employee, Publication
class EmployeePublicationsListView(ListView):
context_object_name = "publication_list"
template_name = "employees/publications_by_employee.html",
def get_queryset(self):
self.primary_author = get_object_or_404(Employee, slug__iexact=self.args[0])
return Publication.objects.filter(primary_author=self.primary_author)
def get_context_data(self, **kwargs):
context = super(EmployeePublicationsListView, self).get_context_data(**kwargs)
context['primary_author'] = self.primary_author
return context
这是我正在使用的URL模式，我将从Employee模型中的slug传递到该员工的所有出版物列表的URL中：
from django.conf.urls.defaults import patterns, include, url
from cms.employees.models import Employee, Publication
from django.views.generic import ListView, DetailView
from cms.employees.views import EmployeePublicationsListView, EmployeeMentionsListView
urlpatterns = patterns('',
(r'^(?P<slug>[-\w]+)/publications/$', EmployeePublicationsListView.as_view()),
)
但是我在/ employees / joe-reporter / publications /得到一个IndexError，因为元组索引超出了范围。这是追溯：
Environment:
Request Method: GET
Request URL: http://127.0.0.1:8000/employees/joe-reporter/publications/
Django Version: 1.3
Python Version: 2.6.1
Installed Applications:
['django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.sites',
'django.contrib.messages',
'django.contrib.staticfiles',
'django.contrib.flatpages',
'django.contrib.admin',
'django.contrib.admindocs',
'django.contrib.sitemaps',
'django.contrib.humanize',
'django.contrib.redirects',
'django.contrib.webdesign',
'cms.news',
'cms.media',
'cms.categories',
'cms.related_links',
'cms.employees',
'cms.static_media',
'cms.places',
'cms.events',
'cms.jobs',
'cms.press',
'cms.topics',
'cms.featured',
'tagging',
'template_utils',
'contact_form',
'cms.research',
'shorturls']
Installed Middleware:
('django.middleware.common.CommonMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.contrib.redirects.middleware.RedirectFallbackMiddleware')
Traceback:
File "/Library/Python/2.6/site-packages/django/core/handlers/base.py" in get_response
111. response = callback(request, *callback_args, **callback_kwargs)
File "/Library/Python/2.6/site-packages/django/views/generic/base.py" in view
47. return self.dispatch(request, *args, **kwargs)
File "/Library/Python/2.6/site-packages/django/views/generic/base.py" in dispatch
68. return handler(request, *args, **kwargs)
File "/Library/Python/2.6/site-packages/django/views/generic/list.py" in get
116. self.object_list = self.get_queryset()
File "/Users/pbeeson/Sites/django_projects/cms/../cms/employees/views.py" in get_queryset
16. self.primary_author = get_object_or_404(Employee, slug__iexact=self.args[0])
Exception Type: IndexError at /employees/joe-reporter/publications/
Exception Value: tuple index out of range
我做错了什么？
答案 0 :(得分：7)
由于您在urlpattern regex中使用了一个命名组，因此slug作为关键字参数传递，而不是位置参数。所以你从self.kwargs['slug']而不是self.args[0]得到它。