form.html

Question

我想拥有类似管理界面的东西。

这是表格的代码：

class NewRoleFrom(forms.Form):
    role = forms.ModelMultipleChoiceField(
        queryset=Role.objects.all(),
        widget=forms.CheckboxSelectMultiple
    )

所以，很简单，我有角色标签（角色:)然后用一个复选框渲染数据库中的每个角色。就像我可以找回用户选择的所有角色对象。但是在每一行的开头我都有一颗子弹，我怎么能把它删除呢？那么是否可以在list_display中定义admin.py时添加其他属性？

Answer 1

表单模板中的

只是迭代角色

form.html

{% for role in form.role %}
    <div class="checkbox">
      {{ role }}
    </div>
{% endfor %}

然后用css搞定。

Answer 2

以下是django.forms.widgets模块中该小部件的来源：

class CheckboxSelectMultiple(SelectMultiple):
    def render(self, name, value, attrs=None, choices=()):
        if value is None: value = []
        has_id = attrs and 'id' in attrs
        final_attrs = self.build_attrs(attrs, name=name)
        output = [u'<ul>']
        # Normalize to strings
        str_values = set([force_unicode(v) for v in value])
        for i, (option_value, option_label) in enumerate(chain(self.choices, choices)):
            # If an ID attribute was given, add a numeric index as a suffix,
            # so that the checkboxes don't all have the same ID attribute.
            if has_id:
                final_attrs = dict(final_attrs, id='%s_%s' % (attrs['id'], i))
                label_for = u' for="%s"' % final_attrs['id']
            else:
                label_for = ''

            cb = CheckboxInput(final_attrs, check_test=lambda value: value in str_values)
            option_value = force_unicode(option_value)
            rendered_cb = cb.render(name, option_value)
            option_label = conditional_escape(force_unicode(option_label))
            output.append(u'<li><label%s>%s %s</label></li>' % (label_for, rendered_cb, option_label))
        output.append(u'</ul>')
        return mark_safe(u'\n'.join(output))

    def id_for_label(self, id_):
        # See the comment for RadioSelect.id_for_label()
        if id_:
            id_ += '_0'
        return id_

你可以看到子弹是由于django CSS的列表。因此，要删除它们，请考虑创建一个继承自CheckboxSelectMultiple的新wudget，并在“ul”html标记中添加一个类，然后使用详细解here的解决方案添加您自己的css。

Answer 3

我会使用自定义类覆盖CheckboxSelectMultiple类，并直接在渲染输出上插入样式更改。见下面的代码

class CustomCheckboxSelectMultiple(forms.CheckboxSelectMultiple):
    def __init__(self, attrs=None):
        super(CustomCheckboxSelectMultiple, self).__init__(attrs)

    def render(self, name, value, attrs=None, choices=()):
        output = super(CustomCheckboxSelectMultiple, self).render(name, value, attrs, choices)

        style = self.attrs.get('style', None)
        if style:
            output = output.replace("<ul", format_html('<ul style="{0}"', style))

        return mark_safe(output)

然后以你的形式：

class NewRoleFrom(forms.Form):
    role = forms.ModelMultipleChoiceField(
        queryset=Role.objects.all(),
        widget=CustomCheckboxSelectMultiple(attrs={'style': 'list-style: none; margin: 0;'})
    )

django modelmultiplechoicefield和widget checkboxselectmultiple

3 个答案:

form.html