Python 如何在 Django 模板中显示模型数据
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How to display Model data in a Django Template
提问by user908759
I am new to Django. I am trying to display data from my Project model in my index view, using a template. I tried my best to structure this app similar to the polls app. I'm not sure what I am doing wrong. I am using python 2.7, and django 1.8.6
我是 Django 的新手。我正在尝试使用模板在索引视图中显示来自我的项目模型的数据。我尽我最大的努力来构建这个类似于民意调查应用程序的应用程序。我不确定我做错了什么。我正在使用 python 2.7 和 django 1.8.6
Here is my url:
这是我的网址：
from django.conf.urls import url
from . import views
app_name = 'project'
urlpatterns = [
url(r'^$', views.IndexView.as_view(), name='index'),
url(r'^(?P<pk>[0-9]+)/$', views.DetailView.as_view(), name='detail'),
]
Here is my Model:
这是我的模型：
import datetime
from django.db import models
from django.utils.encoding import python_2_unicode_compatible
from django.contrib.auth.models import User
from django.utils import timezone
@python_2_unicode_compatible # only if you need to support Python 2
class Contractor(models.Model):
#project
name = models.CharField(max_length=50)
address = models.CharField(max_length=100, blank=True)
phone = models.CharField(max_length=14, blank=True)
city = models.CharField(max_length=60, blank=True)
state = models.CharField(max_length=2, blank=True)
created_by = models.ForeignKey(User, related_name='Contractor_created_by')
created_date = models.DateTimeField()
modified_by = models.ForeignKey(User, related_name='Contractor_modified_by')
modified_date = models.DateTimeField()
def __str__(self):
return self.name
@python_2_unicode_compatible # only if you need to support Python 2
class Project(models.Model):
name = models.CharField(max_length=50)
jobNumber = models.CharField(max_length=8)
shopOut = models.DateTimeField(null=True)
shopIn = models.DateTimeField(null=True)
delivery = models.DateTimeField(null=True)
job1 = models.CharField(max_length=50, null=True)
job2 = models.CharField(max_length=50, null=True)
job3 = models.CharField(max_length=50, null=True)
contractor = models.ForeignKey(Contractor, on_delete=models.CASCADE, default=101)
created_by = models.ForeignKey(User, related_name='Project_created_by')
created_date = models.DateTimeField(auto_now_add=True)
modified_by = models.ForeignKey(User, related_name='Project_modified_by')
modified_date = models.DateTimeField(auto_now=True)
def __str__(self):
return self.name
def save(self, *args, **kwargs):
if not self.id:
self.created_by = User.objects.get(id=1)
self.modified_by = User.objects.get(id=1)
super(Project, self).save(*args, **kwargs)
year = datetime.datetime.now().year
self.jobNumber = '{}{:04d}'.format(year, self.id)
self.modified_by = User.objects.get(id=1)
super(Project, self).save(*args, **kwargs)
Here is my View:
这是我的观点：
from django.shortcuts import get_object_or_404, render
from django.http import HttpResponseRedirect
from django.core.urlresolvers import reverse
from django.views import generic
from django.utils import timezone
from .models import Project
# Create your views here.
class IndexView(generic.ListView):
model = Project
template_name = 'project/index.html'
def get_queryset(self):
return Project.objects
class DetailView(generic.DetailView):
model = Project
Here is my Template:
这是我的模板：
{% load staticfiles %}
<h1>Projects</h1>
<ul>
{% for projects in project.get_queryset %}
in for loop
<!-- <li><a href="{% url 'projects:detail' projects.id %}">{{ projects.name }}</a></li> -->
<li><a href="#">Test</a></li>
{% endfor %}
</ul>
end of list
When I go to the page I get a h1 Project, an empty ul, and a line that says 'end of list'
当我转到该页面时，我得到一个 h1 项目、一个空的 ul 和一行显示“列表结束”
采纳答案by masnun
In your get_queryset, you should return Project.objects.all().
在你的get_queryset，你应该返回Project.objects.all()。
In your template, you don't need to do project.get_queryset, the get_querysetmethod is called for you and the values are passed to the template as object_listand <objectname>_list, along with other parameters. In your case, the object is Projectso there should be a project_listvariable too along with object_list.
在您的模板中，您不需要执行project.get_queryset，get_queryset为您调用该方法并将值作为object_listand<objectname>_list以及其他参数传递给模板。在您的情况下，该对象Project应该project_list与object_list.
You can do:
你可以做：
{% for project in project_list %}
<li><a href="{% url 'projects:detail' project.id %}">{{ project.name }}</a></li>
{% endfor %}
Or:
或者：
{% for project in object_list %}
<li><a href="{% url 'projects:detail' project.id %}">{{ project.name }}</a></li>
{% endfor %}
You can read more about it here: https://docs.djangoproject.com/en/1.9/ref/class-based-views/generic-display/#listview
您可以在此处阅读更多相关信息：https: //docs.djangoproject.com/en/1.9/ref/class-based-views/generic-display/#listview
回答by Shang Wang
You might want to try:
您可能想尝试：
{% for project in object_list %}
<li><a href="{% url 'projects:detail' project.id %}">{{ project.name }}</a></li>
{% endfor %}
object_listis the default name of queryset if you use ListView, you can change that by defining context_object_namein your view. Here's django doc about that.
object_list是 queryset 的默认名称，如果您使用ListView，您可以通过context_object_name在视图中定义来更改它。这是关于那个的django 文档。
回答by Sayse
Your get queryset doesn't return a query set at the minute, currently its just returning a related manager. you should make it return a queryset...
您的 get queryset 不会立即返回查询集，目前它只是返回相关的管理器。你应该让它返回一个查询集......
def get_queryset(self):
return Project.objects.all() # added all
