显示Django变量时,“无法解析剩余部分”错误

omtl5h9j  于 2023-01-18  发布在  Go
关注(0)|答案(1)|浏览(130)

我有一个Django应用程序,它是用来显示某些人的记录的。我不想为每个人的记录制作一个模板,而是想创建一个视图和一个模板,可以动态地显示不同人的记录。当我渲染包含个人信息的变量的模板时,我得到了这个错误:
Could not parse the remainder: '('first_name',flat=True[0]'from'modelname.objects.values_list('first_name', flat=True)[0]'
我已经在几个不同的模型中存储了有关人员的信息,这些信息以列表的形式包含在records变量中。
views.py

def records(response, firstname):

#firstname is a variable containing the name entered into the url by the user
#the function will check if a record model with that first name is in records
#records is a list containing all record models

foundmodel = False

for i in range(len(records)):
    firstname = firstname[0].upper() + firstname[1:] #Makes first letter uppercase
    if firstname == records[i].objects.values_list('first_name', flat=True)[0]:
        modelname = records[i]

#modelname will be passed to the template so the correct model can be referenced

        foundmodel = True
        break
    else:
        continue
 #the loop will keep iterating until a match is found or there are no more record models to try

if foundmodel == True:
    return render(response, 'base2.html', {'modelname':modelname})

 #the template will be rendered with the information from the correct model if a model with the 
 #entered name is found

if foundmodel == False:
    return HttpResponse('Person does not exist')

#if a model with the entered name is not found, this page will be rendered

相关的base2.html,如果找到具有所选名称的模型,则将呈现该文件

<div class="col-8-xs">
        <img style="width:100px; height:100px;" alt="person's picture'" src="#">

        <br>
        <br>
        <br>
        <br>

        <p>Full Name:{{modelname.objects.values_list('first_name', flat=True)[0]}}&nbsp;{{modelname.objects.values_list('last_name', flat=True)[0]}}</p>

        <p>Age:{{modelname.objects.values_list('age', flat=True)[0]}}</p>

        <p>Occupation:{{modelname.objects.values_list('occupation', flat=True)[0]}}</p>
    </div>

urls.py

from django.urls import path

from app_3 import views

urlpatterns = [
    path('home', views.homepage, name='homepage'),
    path('base', views.base, name='base'),
    path('<str:firstname>/records', views.records, name='records')

]
xzv2uavs

xzv2uavs1#

您在模板中显示的逻辑,它属于视图。
解决方案1(推荐)

不知道为什么需要做所有的values_list(),但也许我错过了一些东西。假设你的modelname类有字段first_name,last_name,occupation,那么你需要做的就是:

<p>Full Name:{{ modelname.first_name }} {{ modelname.last_name }}</p>
<p>Age:{{ modelname.age }}</p>
<p>Occupation:{{ modelname.occupation }}</p>

溶液2

现在,* 如果您需要执行逻辑 *,请将其写入视图中,然后将其作为变量沿着,如下所示(但是,我不认为这是您需要或想要的):

def records(response, firstname):

    context = {
        'first_name': modelname.objects.values_list('first_name', flat=True)[0]
        'last_name': modelname.objects.values_list('last_name', flat=True)[0]
        'age': modelname.objects.values_list('age', flat=True)[0]
        'occupation': modelname.objects.values_list('occupation', flat=True)[0] 
    }

    return render(response, 'base2.html', context)

然后按如下方式访问模板中的这些变量:

<p>Full Name: {{ first_name }} {{ last_name }}</p>
<p>Age: {{ age }}</p>
<p>Occupation: {{ occupation }}</p>

相关问题