当我在 html 模板中使用 django if 函数来设置对所选选项标签的更改时,但它一直选择 --SELECT-- 选项
<form method="post">
<select name="name">
<option >--SELECT--</option>
{% for job in all_pekerjaan%}
<option value="{{job.id}}"
{% if job.id == current_name %}selected="selected"{% endif %}>
{{job.name}}
</option>
{% endfor %}
</select>
{% csrf_token %}
<input type="submit" class="btn btn-success" value="submit" >
</form>
这是我的 views.py
from django.http import HttpResponse
from .models import daftartabel, Pekerjaan
from .forms import form1, form2
from django.template import loader
from django.shortcuts import render
def index(request):
if request.method == 'POST':
#print(request.POST['name'])
current_name=request.POST['name']
all_datas = daftartabel.objects.filter(pekerjaan_id=request.POST['name'])
else:
all_datas = daftartabel.objects.all()
all_pekerjaan = Pekerjaan.objects.all()
template = loader.get_template('tabel/index.html')
#print(all_datas)
#print(all_pekerjaan)
context = {
'all_datas' : all_datas,
'all_pekerjaan' : all_pekerjaan,
'current_name' : request.POST['name'],
}
#print (context)
print(type(context['current_name']))
return HttpResponse(template.render(context, request))
我的 forms.py 课
class form2(forms.Form):
name = forms.CharField(max_length=100)
有人知道如何解决这个问题吗?
问题解决了,将"current_name"更改为整数会有所帮助。
if request.method == 'POST':
context = {
'all_datas' : all_datas,
'all_pekerjaan' : all_pekerjaan,
'current_name' : int(request.POST['name']),
}
else:
context = {
'all_datas' : all_datas,
'all_pekerjaan' : all_pekerjaan,
}
在条件之前声明变量。所以像这样的事情
def index(request):
current_name = 0 /*0 or None based on what kind of value it carries*/
all_datas = None
if request.method == 'POST':
#print(request.POST['name'])
current_name=request.POST['name']
all_datas = daftartabel.objects.filter(pekerjaan_id=request.POST['name'])
else:
all_datas = daftartabel.objects.all()
此外,删除上下文对象分配中的最后一个逗号
context = {
'all_datas' : all_datas,
'all_pekerjaan' : all_pekerjaan,
'current_name' : request.POST['name']
}