一、项目来源

廖雪峰老师 Day 11 - 编写日志创建页
https://www.liaoxuefeng.com/wiki/0014316089557264a6b348958f449949df42a6d3a2e542c000/00143233918656129f4ad3ac29e4f728dc72b5d2368215a000

二、编码

1. 管理员登陆

记得事先先设置 admin 为 1

==============================================================================================
app.py

@asyncio.coroutine
def auth_factory(app, handler):
    @asyncio.coroutine
    def auth(request):
        logging.info('check user: %s %s' % (request.method, request.path))
        request.__user__ = None
        cookie_str = request.cookies.get(COOKIE_NAME)
        if cookie_str:
            user = yield from cookie2user(cookie_str)
            if user:
                logging.info('set current user: %s' % user.email)
                request.__user__ = user
        if request.path.startswith('/manage/') and (request.__user__ is None or not request.__user__.admin):
            return web.HTTPFound('/signin')
        return (yield from handler(request))
    return auth

@asyncio.coroutine
def init(loop):
    yield from orm.create_pool(loop=loop, host='127.0.0.1', port=3306, user='root', password='', db='sufadi')
    app = web.Application(loop=loop, middlewares=[
        logger_factory, auth_factory, response_factory
    ])

==============================================================================================

登录详情

INFO:root:Request: GET /
INFO:root:check user: GET /
INFO:root:SQL: select `id`, `email`, `passwd`, `admin`, `name`, `image`, `created_at` from `users` where `id`=?
INFO:root:rows returned: 1
INFO:root:set current user: 123@123.com

2.写博客-UI

manage_blog_edit.html

    <div id="vm" class="uk-width-2-3">
        <form v-on="submit: submit" class="uk-form uk-form-stacked">
            <div class="uk-alert uk-alert-danger uk-hidden"></div>
            <div class="uk-form-row">
                <label class="uk-form-label">标题:</label>
                <div class="uk-form-controls">
                    <input v-model="name" name="name" type="text" placeholder="标题" class="uk-width-1-1">
                </div>
            </div>
            <div class="uk-form-row">
                <label class="uk-form-label">摘要:</label>
                <div class="uk-form-controls">
                    <textarea v-model="summary" rows="4" name="summary" placeholder="摘要" class="uk-width-1-1" style="resize:none;"></textarea>
                </div>
            </div>
            <div class="uk-form-row">
                <label class="uk-form-label">内容:</label>
                <div class="uk-form-controls">
                    <textarea v-model="content" rows="16" name="content" placeholder="内容" class="uk-width-1-1" style="resize:none;"></textarea>
                </div>
            </div>
            <div class="uk-form-row">
                <button type="submit" class="uk-button uk-button-primary"><i class="uk-icon-save"></i> 保存</button>
                <a href="/manage/blogs" class="uk-button"><i class="uk-icon-times"></i> 取消</a>
            </div>
        </form>
    </div>

3.创建博客

==============================================================
页面的点击事件
__base__.html
<li><a href="/manage_blogs_create"><i class="uk-icon-sign-in"></i>写博客</a></li>

==============================================================
handles.py
@get('/manage_blogs_create')
def manage_create_blog():
    return {
        '__template__': 'manage_blog_edit.html',
        'id': '',
        'action': '/api/blogs'
    }
==============================================================
跳转到编辑界面
manage_blog_edit.html
    <div class="uk-form-row">
        <button type="submit" class="uk-button uk-button-primary"><i class="uk-icon-save"></i> 保存</button>
        <a href="/manage/blogs" class="uk-button"><i class="uk-icon-times"></i> 取消</a>
    </div>

function initVM(blog) {
    var vm = new Vue({
        el: '#vm',
        data: blog,
        methods: {
            submit: function (event) {
                event.preventDefault();
                var $form = $('#vm').find('form');
                $form.postJSON(action, this.$data, function (err, r) {
                    if (err) {
                        $form.showFormError(err);
                    }
                    else {
                        return location.assign('/api/blogs/' + r.id);
                    }
                });
            }
        }
    });
    $('#vm').show();
}
==============================================================
数据库的保持事件
handles.py
@post('/api/blogs')
def api_create_blog(request, *, name, summary, content):
    check_admin(request)
    if not name or not name.strip():
        raise APIValueError('name', 'name cannot be empty.')
    if not summary or not summary.strip():
        raise APIValueError('summary', 'summary cannot be empty.')
    if not content or not content.strip():
        raise APIValueError('content', 'content cannot be empty.')
    blog = Blog(user_id=request.__user__.id, user_name=request.__user__.name,
                user_image=request.__user__.image, name=name.strip(), summary=summary.strip(), content=content.strip())
    yield from blog.save()
    return blog

运行保存

数据库