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首先，我为无关紧要的问题表示歉意。我对Django很陌生，我确信我错过了一些明显的东西。我在这里阅读了许多其他帖子，一直没能找到我做错的任何明显事情。非常感谢您的帮助，我现在处于最后期限之内。Django - 将一个视图中的变量传递给模板中的url标记
我在Python 2.7中使用Django 1.6。我有一个名为dbquery的应用程序，它使用表单从用户获取数据并查询REST服务。然后我尝试在结果页面上显示结果。 显然还有更多要补充的，这只是一个非常简单的开始。
问题是，我似乎无法从我的搜索视图中正确地获取模板中的url标记的autoincremented id字段。如果我把数字1写入像这样{% url 'dbquery:results' search_id=1 %}，页面加载并运行良好，但我似乎无法获得正确的变量名称，并且django文档没有帮助 - 也许这对大多数人来说是显而易见的。我得到一个反向错误，因为变量总是空的，所以它不能匹配我的urls.py中的结果正则表达式。我测试了我的代码在命令行shell中添加一个对象，它似乎工作。我的视图中返回render（）语句有问题吗？
urls.py
from django.conf.urls import patterns, url
from dbquery import views
urlpatterns = patterns('',
# ex: /search/
url(r'^$', views.search, name='search'),
# ex: /search/29/results/ --shows response from the search
url(r'^(?P<search_id>\d+)/results/', views.results, name ='results'),
)
models.py
from django.db import models
from django import forms
from django.forms import ModelForm
import datetime
# response data from queries for miRNA accession numbers or gene ids
class TarBase(models.Model):
#--------------miRNA response data----------
miRNA_name = models.CharField('miRNA Accession number', max_length=100)
species = models.CharField(max_length=100, null=True, blank=True)
ver_method = models.CharField('verification method', max_length=100, null=True, blank=True)
reg_type = models.CharField('regulation type', max_length=100, null=True, blank=True)
val_type = models.CharField('validation type', max_length=100, null=True, blank=True)
source = models.CharField(max_length=100, null=True, blank=True)
pub_year = models.DateTimeField('publication year', null=True, blank=True)
predict_score = models.DecimalField('prediction score', max_digits=3, decimal_places=1, null=True, blank=True)
#gene name
gene_target = models.CharField('gene target name',max_length=100, null=True, blank=True)
#ENSEMBL id
gene_id = models.CharField('gene id', max_length=100, null=True, blank=True)
citation = models.CharField(max_length=500, null=True, blank=True)
def __unicode__(self):
return unicode(str(self.id) + ": " + self.miRNA_name) or 'no objects found!'
views.py
from django.shortcuts import render, get_object_or_404
from django.http import HttpResponse, Http404, HttpResponseRedirect
from django.core.urlresolvers import reverse
from dbquery.models import TarBase, SearchMainForm
from tarbase_request import TarBaseRequest
#main user /search/ form view
def search(request):
if request.method == 'POST': #the form has been submitted
form = SearchMainForm(request.POST) #bound form
if form.is_valid(): #validations have passed
miRNA = form.cleaned_data['miRNA_name']
u = TarBase.objects.create(miRNA_name=miRNA)
#REST query will go here.
#commit to database
u.save()
return render(request,'dbquery/results.html', {'id':u.id})
else: #create an unbound instance of the form
form = SearchMainForm(initial={'miRNA_name':'hsa-let-7a-5p'})
#render the form according to the template, context = form
return render(request, 'dbquery/search.html', {'form':form})
#display results page: /search/<search_id>/results/ from requested search
def results(request, search_id):
query = get_object_or_404(TarBase, pk=search_id)
return render(request, 'dbquery/results.html', {'query':query})
模板： search.html
<html>
<head><h1>Enter a TarBase Accession Number</h1>
</head>
<body>
<!--form action specifies the next page to load-->
<form action="{% url 'dbquery:results' search_id=1 %}" method="post">
{% csrf_token %}
{{ form.as_p }}
<input type="submit" value="Search" />
</form>
</body>
results.html
<html>
<head><h1>Here are your results</h1>
</head>
<body>
{{query}}
</body
如何计算搜索ID？它在我看来有点像你把马车放在马前 - 你是否在渲染你的'search.html'模板时知道搜索ID？ – 2014-12-04 18:04:12
对象u在视图中创建，并且可以通过u.id访问id（autoincremented）。我用一个例子对它进行了测试。这是否回答你的问题？ – Sarah 2014-12-04 21:54:16
好的 - 您的观点与通常的做法有所不同。我将在答案中展示标准方法。 – 2014-12-04 21:58:57