Python实战-编写web-app-day11-编写日志创建页

和创建注册页面类似，日志创建页面的编写也并不复杂。在www/templates下创建manage_blog_edit.html：

<!-- 继承父模板 '__base__.html' -->
{% extends '__base__.html' %}
<!--jinja2 title 块内容替换-->
{% block title %}编辑日志{% endblock %}
<!--jinja2 beforehead 块内容替换-->
{% block beforehead %}
<!--script中构建vue,向后端API提交日志相关数据,包括创建新日志和修改旧日志-->
<script>

var
    ID = '{{ id }}',
    action = '{{ action }}';

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('/manage/blogs');
                    }
                });
            }
        }
    });
    $('#vm').show();
}

$(function () {
    if (ID) {
        getJSON('/api/blogs/' + ID, function (err, blog) {
            if (err) {
                return fatal(err);
            }
            $('#loading').hide();
            initVM(blog);
        });
    }
    else {
        $('#loading').hide();
        initVM({
            name: '',
            summary: '',
            content: ''
        });
    }
});

</script>

{% endblock %}

<!--jinja2 content 块内容替换，构建日志编写页面UI主要内容-->
{% block content %}
    <div class="uk-grid">
    <div class="uk-width-1-1 uk-margin-bottom">
        <ul class="uk-breadcrumb">
            <li><a href="/manage/comments">评论</a></li>
            <li><a href="/manage/blogs">日志</a></li>
            <li><a href="/manage/users">用户</a></li>
        </ul>
    </div>

    <div id="error" class="uk-width-1-1">
    </div>

    <div id="loading" class="uk-width-1-1 uk-text-center">
        <span><i class="uk-icon-spinner uk-icon-medium uk-icon-spin"></i> 正在加载...</span>
    </div>

    <div id="vm" class="uk-width-2-3">
        <form v-on="submit: submit" class="uk-form-stacked">
            <div class="uk-alert uk-alert-danger uk-hidden"></div>
            <div class="uk-margin-top">
                <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-input uk-form-width-large">
                </div>
            </div>
            <div class="uk-margin-top">
                <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-textarea" style="resize:none;"></textarea>
                </div>
            </div>
            <div class="uk-margin-top">
                <label class="uk-form-label">内容:</label>
                <div class="uk-form-controls">
                    <textarea v-model="content" rows="12" name="content" placeholder="内容" class="uk-textarea" style="resize:none;"></textarea>
                </div>
            </div>
            <div class="uk-margin-top">
                <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>
    </div>

{% endblock %}

此模板除了用于创建新的日志内容，也是编辑修改现有日志的模板，只是编辑修改时会预先载入先前的日志内容在输入栏中。