我正在尝试验证用户提交的表单并显示有意义的错误,但是我有很多问题。首先,我的表单(event_form.ejs
):
<% if (typeof errors !== 'undefined') { %>
<div class="message"><%= errors %></div>
<% } %>
<form method="POST" action="/submit-create-event" id="create-event">
<input type="text" class="title" name="title" placeholder="title">
<input type="text" class="date" autocomplete="off" name="date" placeholder="date">
<select class="type" name="type">
<option value="road">Road</option>
<option value="mtb">MTB</option>
</select>
<input type="text" class="city" name="city" placeholder="city">
<select class="level" name="level">
<option value="beginner">Beginner</option>
<option value="advanced">Advanced</option>
<option value="pro">Pro</option>
</select>
<input type="text" class="start-time timepicker" autocomplete="off" data-time-format="H:i" name="startTime" placeholder="start time">
<input type="text" class="start_location" name="startLocation" placeholder="start location">
<input type="text" class="distance" name="distance" placeholder="distance">
<input type="submit" class="create-event-submit">
</form>
提交后,在我的eventController.js
中,我具有处理提交的功能。
//Helper function to handle event form submit.
module.exports.submitEventForm = function(req, res) {
const event = new eventModel.event({
title: req.body.title,
date: req.body.date,
type: req.body.type,
city: req.body.city,
level: req.body.level,
start_time: req.body.startTime,
start_location: req.body.startLocation,
distance: req.body.distance
});
event.save(function(err, data) {
if (err) {
console.log(err);
//I tried this, kinda works but pretty sure a bad practice
res.render('forms/create_event_form', {errors: err})
} else {
res.render('status/success');
}
});
};
如您所见,在event.save()
上如果我有错误,我现在console.log()
。我尝试做的是再次渲染event creation
表单并显示错误(在.ejs
文件中可见)。非常确定不应该那样做。
这是我的model
文件,其中一个validator
var mongoose = require('mongoose')
var validate = require('mongoose-validator')
var Schema = mongoose.Schema;
var titleValidator = [
validate({
validator: 'isAlphanumeric',
message: 'Title should be alphanumeric'
})
]
var eventSchema = new Schema({
title: {type: String, required: true, validate: titleValidator},
date: {type: String },
type: {type: String },
city: {type: String },
level: {type: String },
start_time: {type: String },
start_location: {type: String },
distance: {type: Number },
});
var Event = mongoose.model('Event', eventSchema);
module.exports.eventSchema = eventSchema;
module.exports.event = Event;
我创建了titleValidator
,如果我的表单失败,它将打印出如下内容:
我的问题是:如何正确地将validator
消息发送到模板并显示?如何再次创建validators
来处理多条消息,因为错误不会以array
的方式返回,这意味着我无法遍历它们?
答案 0 :(得分:0)
Kinda找到了解决方案。为了使错误消息更具可读性和可用性,我使用了Mongoose error helper。它整齐地打印出所有错误消息。 但是,当通过npm
获取软件包时,代码中存在错误,并且为解决方案创建了pull request,但从未合并。只需手动进行较小的更改。
我找不到其他方法来渲染带有错误的相同表单,所以我坚持这一点:
event.save(function(err) {
if (err) {
res.render('forms/create_event_form', {errors: errorHelper(err, next)});
} else {
res.render('status/success');
}
});
在我的.ejs
模板中,我打印出如下错误:
<% if (typeof errors !== 'undefined') {
errors.forEach(function(err) { %>
<div class="message"><%= err %></div>
<% })} %>
希望这可以帮助某人,加油。