python 如何在 Django 中使用 <div class='field_type'> 标记表单字段
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How to markup form fields with <div class='field_type'> in Django
提问by olivergeorge
I wasn't able to find a way to identify the type of a field in a django template. My solution was to create a simple filter to access the field and widget class names. I've included the code below in case it's helpful for someone else.
我无法找到一种方法来识别 django 模板中的字段类型。我的解决方案是创建一个简单的过滤器来访问字段和小部件类名称。我已经包含了下面的代码，以防对其他人有帮助。
Is there a better approach?
有没有更好的方法？
## agency/tagutils/templatetags/fieldtags.py
###############################################################
from django import template
register = template.Library()
@register.filter(name='field_type')
def field_type(value):
return value.field.__class__.__name__
@register.filter(name='widget_type')
def widget_type(value):
return value.field.widget.__class__.__name__
## client/project/settings.py
###############################################################
INSTALLED_APPS = (
# ...
'agency.tagutils',
)
## client/project/templates/project/field_snippet.html
###############################################################
{% load fieldtags %}
<div class="field {{ field|field_type }} {{ field|widget_type }} {{ field.name }}">
{{ field.errors }}
<div class="form_label">
{{ field.label_tag }}
</div>
<div class="form_field">
{{ field }}
</div>
</div>
## sample output html
###############################################################
<div class="field CharField TextInput family_name">
<div class="form_label">
<label for="id_family_name">Family name</label>
</div>
<div class="form_field">
<input id="id_family_name" type="text" name="family_name" maxlength="64" />
</div>
</div>
回答by shadfc
class MyForm(forms.Form):
myfield = forms.CharField(widget=forms.TextInput(attrs={'class' : 'myfieldclass'}))
or, with a ModelForm
或者，使用 ModelForm
class MyForm(forms.ModelForm):
class Meta:
model = MyModel
widgets = {
'myfield': forms.TextInput(attrs={'class': 'myfieldclass'}),
}
or, when you don't want to redefine the widget
或者，当您不想重新定义小部件时
class MyForm(forms.ModelForm):
class Meta:
model = MyModel
def __init__(self, *args, **kwargs):
super(MyForm, self).__init__(*args, **kwargs)
self.fields['myfield'].widget.attrs.update({'class' : 'myfieldclass'})
render normally with {{ form }}
用 {{ form }} 正常渲染
