Node.js CastError:value“的转换为ObjectId失败”；5be86bf8170c2c22f8bb93a6“；在路径上“_id"；对于“型号”；第页“；
我正在用node/express/mongo/mongoose构建一个应用程序。我遇到了一个我似乎无法理解的错误，谷歌搜索到目前为止没有任何帮助 我试图创建一个编辑页面，但遇到了一个错误 Package.jsonNode.js CastError:value“的转换为ObjectId失败”；5be86bf8170c2c22f8bb93a6“；在路径上“_id"；对于“型号”；第页“；,node.js,mongoose,Node.js,Mongoose,我正在用node/express/mongo/mongoose构建一个应用程序。我遇到了一个我似乎无法理解的错误，谷歌搜索到目前为止没有任何帮助 我试图创建一个编辑页面，但遇到了一个错误 Package.json { "name": "cmscart", "version": "1.0.0", "description": "", "main": "app.js", "scripts": { "test": "echo \"Error: no test specifi
{
"name": "cmscart",
"version": "1.0.0",
"description": "",
"main": "app.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "",
"license": "ISC",
"dependencies": {
"body-parser": "^1.18.3",
"connect-flash": "^0.1.1",
"ejs": "^2.6.1",
"express": "^4.16.4",
"express-messages": "^1.0.1",
"express-session": "^1.15.6",
"express-validator": "^5.3.0",
"mongoose": "^5.3.10"
}
}
<%- include('../_layouts/adminheader') %>
<h2 class="page-title">Edit a Page</h2>
<a href="/admin/pages" class="btn btn-primary">Back to all Pages</a>
<br>
<br>
<form method="post" action="/admin/pages/edit-page/<%= slug %> ">
<div class="form-group">
<label for="">Title</label>
<input type="text" name="title" value="<%= title %>" class="form-control" placeholder="Title">
</div>
<div class="form-group">
<label for="">Slug</label>
<input type="text" name="slug" value="<%= slug %>" class="form-control" placeholder="Slug">
</div>
<div class="form-group">
<label for="">Content</label>
<textarea name="content" class="form-control" placeholder="Content" rows="10" cols="30"><%= content %></textarea>
</div>
<input type="hidden" name="id" value="<%= id %> ">
<button class="btn btn-default">Submit</button>
</form>
<%- include('../_layouts/adminfooter') %>
/* GET edit page*/
/* here after edit page "/:slug" because we didn't have a fixed value of url*/
router.get('/edit-page/:slug', function (req, res) {
Page.findOne({ slug: req.params.slug }, function (err, page) {
if (err) return console.log(err);
res.render('admin/edit_page', {
title: page.title,
slug: page.slug,
content: page.content,
id: page._id
});
});
});
/* POST edit page*/
router.post('/edit-page/:slug', function (req, res) {
req.checkBody('title', 'Title must have a value').notEmpty();
req.checkBody('content', 'Content must have a value').notEmpty();
var title = req.body.title;
var slug = req.body.slug.replace(/\s+/g, '-').toLowerCase();
if (slug == "") slug = title.replace(/\s+/g, '-').toLowerCase();
var content = req.body.content;
var id = req.body.id;
var errors = req.validationErrors();
if (errors) {
res.render('admin/edit_page', {
errors: errors,
title: title,
slug: slug,
content: content,
id: id
});
} else {
Page.findOne({ slug: slug, _id: { '$ne': id } }, function (err, page) {
if (page) {
req.flash('danger', 'Page slug exists , choose another.');
res.render('admin/edit_page', {
title: title,
slug: slug,
content: content,
id:id
});
}
else {
Page.findByIdAndUpdate(id, function (err, page) {
if (err) {
return console.log(err);
}
page.title = title;
page.slug = slug;
page.content = content;
page.save(function (err) {
if (err)
return console.log(err);
req.flash('success', 'Page added!');
res.redirect('/admin/pages');
});
});
}
});
}
});