Handlebars:??????????“??”,?????????“?????”

Posted 2023-03-10

【中文标题】Handlebars：访问已被拒绝解析属性“名称”，因为它不是其父级的“自己的属性”

【英文标题】：Handlebars: Access has been denied to resolve the property "name" because it is not an "own property" of its parent

【发布时间】：2020-06-12 22:52:30

【问题描述】：

我遇到了车把 4.7.3 的问题。我已经从这个问题检查了解决方案， Handlebars: Access has been denied to resolve the property "from" because it is not an "own property" of its parent 但这不是我的代码的解决方案，所以我希望有人可以帮助我。

Controller.js

submitPosts: (req, res) => 
        // Check the attributs from create.handlebars for success or error message
        const newPost = new Post( 
            surname: req.body.surname,
            name: req.body.name,
            biography: req.body.biography,
            profilpicture: req.body.profilpicture,
            paintings: req.body.paintings,
        );
        // Safe new posts
        newPost.save().then(post => 
            console.log(post);
            flash('success-message', 'new post!')
            res.redirect('/admin/posts');
        );

    ,

postModel.js

const
    mongoose = require('mongoose');

const Schema = mongoose.Schema; // get props

const PostSchema = new Schema(
    // define props --> required for a post

    surname: 
        type: String,
        default: ''
    ,
    name: 
        type: String,
        default: ''
    ,
    biography: 
        type: String,
        default: ''
    ,
    profilpicture: 
        type: Object,
    ,
    paintings : 
        type: Object,
    


);

module.exports = mongoose.model('post', PostSchema);

index.handlebars

#each post
            <tr>
                <td> surname </td>
                <td> name </td>
                <td><img style="width: 100px; height:100px;" src=" profilpicture "></td>
                <td> biography </td>
                <td><img style="width: 100px; height:100px;" src=" paintings "></td>
            </tr>
            /each

已经尝试了其他关于堆栈溢出、其他车把版本、更改路由器代码的其他问题的所有可能性，......没有任何工作:(

【问题讨论】：

handlebarsjs.com/api-reference/…

【参考方案1】：

刚刚遇到了同样的问题，让我很紧张。 尝试了其他软件包等，但最后一个简单的命令解决了这个问题。 它的命令“.lean()” 在这里找到更多：link to mongoose docs for lean()

我的代码示例：

// show message page Route
router.get("/", (req, res) => 
//read all Message entries from db
   Message.find() 
   //sort them descending by date property
   .sort( date: "desc" )
   .lean()
   //take these and call the rendered page and pass them as object to the page
   .then(messages => 
     res.render("messages/show_messages",  messages: messages );
   );
);

【讨论】：

@Dariun 是的，在你的路线中使用它。我的示例在路由器文件中使用。因此，“router.get...”如果您不使用单独的路由器文件，请使用“app.get...”路由中的“.lean()”函数。不要复制我的路线。在您的路线中插入“.lean()”