xadmin设置了use_bootswatch = True”主题还是无效的解决办法

xadmin的主题use_bootswatch = True”无效解决方法

xadmin采用源代码的方式引入到项目中

在xadmin使用的过程中，设置“use_bootswatch = True”，企图调出主题菜单，显示更多主题。然而设置了后，发现主题还是默认和bootstrap2，深入跟踪源代码，发现/xadmin/plugins/themes.py下的

block_top_navmenu
当use_bootswatch 为True的时候，就会使用httplib2去

http://bootswatch.com/api/3.json
网址获取主题菜单项。但是使用浏览器打开这个网址，http会被替换成https的。httplib2访问这个https的网址，就会报错。报错信息为：

[SSL: SSLV3_ALERT_HANDSHAKE_FAILURE] sslv3 alert handshake failure
这边使用requests库来替代httplib2.

1.安装requests
pip install requests
2.在./xadmin/plugins/themes.py 引入requests
import requests
3.修改block_top_navmenu方法：

Block Views

def block_top_navmenu(self, context, nodes):

    themes = [
        {'name': _(u"Default"), 'description': _(u"Default bootstrap theme"), 'css': self.default_theme},
        {'name': _(u"Bootstrap2"), 'description': _(u"Bootstrap 2.x theme"), 'css': self.bootstrap2_theme},
        ]
    select_css = context.get('site_theme', self.default_theme)

    if self.user_themes:
        themes.extend(self.user_themes)

    if self.use_bootswatch:
        ex_themes = cache.get(THEME_CACHE_KEY)
        if ex_themes:
            themes.extend(json.loads(ex_themes))
        else:
            ex_themes = []
            try:
                flag = False  # 假如为True使用原来的代码，假如为Flase，使用requests库来访问
                if flag:
                    h = httplib2.Http()
                    resp, content = h.request("https://bootswatch.com/api/3.json", 'GET', '',
                        headers={"Accept": "application/json", "User-Agent": self.request.META['HTTP_USER_AGENT']})
                    if six.PY3:
                        content = content.decode()
                    watch_themes = json.loads(content)['themes']
                else:
                    content = requests.get("https://bootswatch.com/api/3.json")
                    if six.PY3:
                        content = content.text.decode()
                    watch_themes = json.loads(content.text)['themes']
                ex_themes.extend([
                    {'name': t['name'], 'description': t['description'],
                        'css': t['cssMin'], 'thumbnail': t['thumbnail']}
                    for t in watch_themes])
            except Exception as e:
                print(e)

            cache.set(THEME_CACHE_KEY, json.dumps(ex_themes), 24 * 3600)
            themes.extend(ex_themes)

    nodes.append(loader.render_to_string('xadmin/blocks/comm.top.theme.html', {'themes': themes, 'select_css': select_css}))

site.register_plugin(ThemePlugin, BaseAdminView)

原文链接： https://my.oschina.net/u/2396236/blog/1083251
转载from：http://blog.csdn.net/dimples_54/article/details/77963593