Question

我正在学习Django并创建一个生物序列数据库，包含使用模型的数百个序列，模型有两个字段，“Seq_ID”和“序列”。我正在尝试编写一个视图，以便它可以在主页上呈现所有序列的ID，并单击特定的ID，它将显示相关的序列。

更新了观看次数和网址：

型号：

from __future__ import unicode_literals

from django.db import models

    # Create your models here.
class FastaSeq(models.Model):

    Seq_ID =  models.CharField(max_length=20)
    Sequense = models.TextField()

    def __unicode__(self):

        return self.Seq_ID

查看：

from django.shortcuts import render
from django.conf import settings 
from .models import FastaSeq

def home(request):
    data = FastaSeq.objects.all()
    context = {'data':data}
    template = 'home.html'
    return render(request, template, context)

def single(request,Seq_ID):
    data = FastaSeq.objects.get(Seq_ID=Seq_ID)
    return render(request,template,{'data':data})

网址：

from django.conf.urls import url
from django.contrib import admin
from new_app import views as new_app_view



urlpatterns = [

    url(r'^admin/', admin.site.urls),
    url(r'^home/', new_app_view.home, name='home'),
    url(r'^User/(?P<Seq_ID>\d+)/$', new_app_view.single, name='single'), 

]

Example_Data：

Seq_ID:
>01_sequence

Sequence:
LARALLLCAAVVCGAANPCCSHPCQNRGVCMSVGFDQYKCDCTRTGFYGENCTTPEFLTRIKLLLKPTP
DTVHYILTHFKGVWNIVNKISFLRNMIMRYVLTSRSHLIESPPTYNVHYSYKSWEAFSNLSYYTRALPPV
PDDCPTPMGVKGRKELPDSKEVVKKVLLRRKFIPDPQGTNLMFAFFAQHFTHQFFKTDIERGPAFTKGKN
HGVDLSHVYGESLERQHNRRLFKDGKMKYQMINGEMYPPTVKDTQVEMIYPPHIPEHLKFAVGQEVFGLV

使用这个模型我已经在数据库中添加了大约50个Demo序列，但是无法编写一个可以在主页上显示序列ID并且点击ID的视图将使您获得序列数据。

已更新：

显示一些错误：

No    return force_text(iri_to_uri(resolver._reverse_with_prefix(view, prefix, *args, **kwargs)))
  File "/home/jai/.virtualenvs/env1/local/lib/python2.7/site-packages/django/urls/resolvers.py", line 389, in _reverse_with_prefix
    (lookup_view_s, args, kwargs, len(patterns), patterns)
NoReverseMatch: Reverse for 'single' with arguments '('',)' and keyword arguments '{}' not found. 1 pattern(s) tried: ['User/(?P<Seq_ID>\\d+)/$']
[06/Jul/2017 06:46:13] "GET /home/ HTTP/1.1" 500 133824

Answer 1

from .models import FastaSeq
def home(request):
    data = FastaSeq.objects.all()
    context = {'data':data}
    template = 'home.html'
    return render(request, template, context)

模板中的

{% for d in data %}
<a href="{% url 'single' d.Seq_ID %}">{{ d.Seq_ID  }}</a>
{% endfor %}

在urls.py中

url(r'^User/(?P<Seq_ID>[\w{}.-]{1,40})/$', 'views.single', name='single'),

创建另一个视图

def single(request,Seq_ID):
    data = FastaSeq.objects.get(Seq_ID=Seq_ID)
    return render(request,template,{'data':data})

在single功能模板`

中

{{ data.Seq_ID }}
{{ data.Sequense }}

Answer 2

将seq_id添加到上下文中：

context = {'seq_ids': FastaSeq.objects.all()}

然后在模板中迭代它们。

{% for id in seq_ids %}
    <your html here>
{% endfor %}

使用Django进行序列数据库？

2 个答案: