权限分配之一级菜单优化添加和编辑页面图标

这里就好说了。使用的还是 forms 组件。将图标的input框，搞成了 redio 单选框。
直接看代码：

from django import forms
from django.utils.safestring import mark_safe
from django.core.exceptions import ValidationError, NON_FIELD_ERRORS
from rbac import models

# mark_safe 告诉django这个是安全的，渲染页面时， 不要转换成特殊符号。

ICON_LIST = [
    ['fa-hand-scissors-o', '<i aria-hidden="true" class="fa fa-hand-scissors-o"></i>'],
    ['fa-hand-spock-o', '<i aria-hidden="true" class="fa fa-hand-spock-o"></i>'],
    ['fa-hand-stop-o', '<i aria-hidden="true" class="fa fa-hand-stop-o"></i>'],
    ['fa-handshake-o', '<i aria-hidden="true" class="fa fa-handshake-o"></i>'],
    ['fa-hard-of-hearing', '<i aria-hidden="true" class="fa fa-hard-of-hearing"></i>'],
    ['fa-hashtag', '<i aria-hidden="true" class="fa fa-hashtag"></i>'],
    ['fa-hdd-o', '<i aria-hidden="true" class="fa fa-hdd-o"></i>'],
    ['fa-headphones', '<i aria-hidden="true" class="fa fa-headphones"></i>'],
    ['fa-heart', '<i aria-hidden="true" class="fa fa-heart"></i>'],
    ['fa-heart-o', '<i aria-hidden="true" class="fa fa-heart-o"></i>'],
    ['fa-heartbeat', '<i aria-hidden="true" class="fa fa-heartbeat"></i>'],
    ['fa-history', '<i aria-hidden="true" class="fa fa-history"></i>'],
    ['fa-home', '<i aria-hidden="true" class="fa fa-home"></i>'],
    ['fa-hotel', '<i aria-hidden="true" class="fa fa-hotel"></i>'],
    ['fa-hourglass', '<i aria-hidden="true" class="fa fa-hourglass"></i>'],
    ['fa-hourglass-1', '<i aria-hidden="true" class="fa fa-hourglass-1"></i>'],
    ['fa-hourglass-2', '<i aria-hidden="true" class="fa fa-hourglass-2"></i>'],
    ['fa-hourglass-3', '<i aria-hidden="true" class="fa fa-hourglass-3"></i>'],
    ['fa-hourglass-end', '<i aria-hidden="true" class="fa fa-hourglass-end"></i>'],
    ['fa-hourglass-half', '<i aria-hidden="true" class="fa fa-hourglass-half"></i>'],
    ['fa-hourglass-o', '<i aria-hidden="true" class="fa fa-hourglass-o"></i>'],
    ['fa-hourglass-start', '<i aria-hidden="true" class="fa fa-hourglass-start"></i>'],
    ['fa-i-cursor', '<i aria-hidden="true" class="fa fa-i-cursor"></i>'],
    ['fa-id-badge', '<i aria-hidden="true" class="fa fa-id-badge"></i>'],
    ['fa-id-card', '<i aria-hidden="true" class="fa fa-id-card"></i>'],
    ['fa-id-card-o', '<i aria-hidden="true" class="fa fa-id-card-o"></i>'],
    ['fa-image', '<i aria-hidden="true" class="fa fa-image"></i>'],
    ['fa-mail-reply-all', '<i aria-hidden="true" class="fa fa-mail-reply-all"></i>'],
    ['fa-reply', '<i aria-hidden="true" class="fa fa-reply"></i>'],
    ['fa-reply-all', '<i aria-hidden="true" class="fa fa-reply-all"></i>'],
    ['fa-retweet', '<i aria-hidden="true" class="fa fa-retweet"></i>'],
    ['fa-wrench', '<i aria-hidden="true" class="fa fa-wrench"></i>']]

for item in ICON_LIST:
    item[1] = mark_safe(item[1])


class MenuForm(forms.ModelForm):
    '''菜单form'''

    class Meta:
        model = models.Menu
        fields = ["title", "icon"]
        widgets = {
            "title": forms.TextInput(attrs={"class": "form-control"}),
            "icon": forms.RadioSelect(
                choices=ICON_LIST,
                attrs={'class': 'clearfix'}
            )
        }

为icon字段，的展示。搞成一个RadioSelect() choices 属性就是所有的要展示的图标。

['fa-wrench', make_safe('<i aria-hidden="true" class="fa fa-wrench"></i>'])]

每个列表都是一个图标，第一个参数是，要保存到数据库中的icon字段的值。第二个参数是进行展示时的样式。
一样要使用 make_safe() 告诉，django 这个字符串时可以信任的，不然都是字符串展示出来了。

然后就是，给这些标签加一点再，更改一点样式：

    <style type="text/css">
        ul {list-style-type: none;padding: 0;}
        ul li {float: left;padding: 10px;padding-left: 0; 80px;}
        ul li i {font-size: 18px;margin-left: 5px;color: #6d6565;}
    </style>

注，不是所有的都要这样改，只是添加页面中的 ul 下的标签。
写样式的时候，不要起了冲突就好！