我使用https://gist.github.com/basco-johnkevin/8436644中的验证服务，目前在提交数据时遇到了一些问题。似乎验证服务可能不喜欢NaN值，或者我可能遗漏了某些东西。有什么想法吗？
我的表格：
<div class="container">
<form action="/standardplacement/create" method="POST" role="form">
<div class="row-fluid">
<h2 class="form-signin-heading">Create a <em>Standard Media</em> placement</h2>
<% if (req.session.flash && req.session.flash.error) { %>
<% var errors = req.flash('error') %>
<div class="alert alert-danger">
<button type="button" class="close" aria-hidden="true" data-dismiss="alert">×</button>
<ul>
<% Object.keys(errors).forEach(function(error) { %>
<% Object.keys(errors[error]).forEach(function(error_message) { %>
<% Object.keys(errors[error][error_message][0]).forEach(function(error_message_res) { %>
<li><%- errors[error][error_message][0][error_message_res] %></li>
<% }); %>
<% }); %>
<% }); %>
</ul>
</div>
<% var t_results = req.flash('temp_results'); %>
<% if(t_results[0]){ %>
<%
t_results = t_results[0];
sails.log.info("Results Restored");
%>
<% } %>
<% } %>
</div>
<div class="row-fluid">
<div class="form-group">
<label for="pName">Placement Name</label>
<input type="text" name="name" id="pName" class="form-control" required="required" title="Name" placeholder="12/27 Homepage 300x250 Banner" />
</div>
</div>
<div class="row-fluid">
<blockquote>
<p class="lead">General Specifications</p>
</blockquote>
</div>
<div class="row-fluid">
<div class="form-group row">
<div class="col-xs-4">
<label for="pWidth">Width</label>
<div class="input-group">
<input type="integer" name="width" id="pWidth" class="form-control" title="Width (in PX)" placeholder="300" />
<div class="input-group-addon">px</div>
</div>
</div>
<div class="col-xs-4">
<label for="pHeight">Height</label>
<div class="input-group">
<input type="integer" name="height" id="pHeight" class="form-control" title="Height (in PX)" placeholder="250" />
<div class="input-group-addon">px</div>
</div>
</div>
</div>
</div>
<br/>
<div class="row-fluid">
<div class="form-group">
<button type="submit" class="btn btn-lg btn-primary" type="submit">Create Placement</button>
<input type="hidden" name="_csrf" value="<%= _csrf %>" />
</div>
</div>
</form>
</div>
我的控制器：
create: function(req, res){
StandardPlacement.create( req.params.all() ).exec( function (error, placement) {
sails.log( req.params.all() );
if(error) {
sails.log(error);
sails.log(error.ValidationError);
if(error.ValidationError) {
error_object = ValidationService.transformValidation(StandardPlacement, error.Validation);
sails.log.warn(error_object);
res.send({result: false, errors: error_object});
}
}
// After successfully creating the placement
// redirect the user to the show action
res.redirect('/standardplacement/show/' + placement.id);
});
},
我的模特：
module.exports = {
attributes: {
name: {
type: 'string',
minLength: 2,
required: true
},
width: {
type: 'integer',
required: true
},
height: {
type: 'integer',
required: true
}
},
validation_messages: {
name: {
required: 'You must supply a valid name for the placement. If you do not have a specific name, make up one.',
minLength: 'The name must be more than one character long.'
},
width: {
required: 'You must supply a width value in pixels.'
},
height: {
required: 'You must supply a height value in pixels.'
},
}
};
api / services / ValidationService.js中的服务：
/**
* Takes a Sails Model object (e.g. User) and a ValidationError object and translates it into a friendly
* object for sending via JSON to client-side frameworks.
*
* To use add a new object on your model describing what validation errors should be translated:
*
* module.exports = {
* attributes: {
* name: {
* type: 'string',
* required: true
* }
* },
*
* validation_messages: {
* name: {
* required: 'you have to specify a name or else'
* }
* }
* };
*
* Then in your controller you could write something like this:
*
* var validator = require('sails-validator-tool');
*
* Mymodel.create(options).done(function(error, mymodel) {
* if(error) {
* if(error.ValidationError) {
* error_object = validator(Mymodel, error.Validation);
* res.send({result: false, errors: error_object});
* }
* }
* });
*
* @param model {Object} An instance of a Sails.JS model object.
* @param validationErrors {Object} A standard Sails.JS validation object.
*
* @returns {Object} An object with friendly validation error conversions.
*/
exports.transformValidation = function(model, validationError) {
sails.log.info("Validating Submission");
var validation_response = {};
var messages = model.validation_messages;
validation_fields = Object.keys(messages);
validation_fields.forEach(function(validation_field) {
if(validationError[validation_field]) {
var processField = validationError[validation_field];
processField.forEach(function(rule) {
if(messages[validation_field][rule.rule]) {
if(!(validation_response[validation_field] instanceof Array)) {
validation_response[validation_field] = new Array();
}
var newMessage = {};
newMessage[rule.rule] = messages[validation_field][rule.rule];
validation_response[validation_field].push(newMessage);
}
});
}
});
sails.log.info("Validation Complete!");
return validation_response;
};
错误：
error: Sending 500 ("Server Error") response:
TypeError: Cannot read property 'width' of undefined
at /Users/me/Sites/specs/api/services/ValidationService.js:49:22
at Array.forEach (native)
at Object.exports.transformValidation (/Users/me/Sites/specs/api/services/ValidationService.js:47:21)
at /Users/me/Sites/specs/api/controllers/StandardPlacementController.js:34:39
at bound (/usr/local/lib/node_modules/sails/node_modules/lodash/dist/lodash.js:957:21)
at applyInOriginalCtx (/usr/local/lib/node_modules/sails/node_modules/waterline/lib/waterline/utils/normalize.js:416:80)
at wrappedCallback (/usr/local/lib/node_modules/sails/node_modules/waterline/lib/waterline/utils/normalize.js:326:16)
at _normalizeCallback.callback.error (/usr/local/lib/node_modules/sails/node_modules/waterline/node_modules/node-switchback/lib/normalize.js:42:31)
at _switch (/usr/local/lib/node_modules/sails/node_modules/waterline/node_modules/node-switchback/lib/factory.js:33:28)
at /usr/local/lib/node_modules/sails/node_modules/waterline/lib/waterline/query/dql/create.js:51:22 [TypeError: Cannot read property 'width' of undefined]
答案 0 :(得分：2)
在与#sailsjs的一些人交谈之后，我明白了。结束从控制器中删除create方法。使用以下内容更新了api / responses / badRequest.js.
在badRequest.js中：
var referringView = req.header('Referer').replace(req.protocol + "://" + req.host + ":" + req.port + '/', '');
var errors = data.invalidAttributes;
var error_object = {};
if(errors) {
error_object = ValidationService.transformValidation(StandardPlacement, errors);
return res.view(referringView, {result: false, errors: error_object});
}
在视图中（读取/显示错误）：
<% if (res.locals && res.locals.errors) { %>
<% var errors = res.locals.errors; %>
<div class="alert alert-danger">
<button type="button" class="close" aria-hidden="true" data-dismiss="alert">×</button>
<ul>
<% Object.keys(errors).forEach(function(error) { %>
<% Object.keys(errors[error]).forEach(function(error_message) { %>
<% sails.log(errors[error][error_message]); %>
<% Object.keys(errors[error][error_message]).forEach(function(error_message_res) { %>
<li><%- errors[error][error_message][error_message_res] %></li>
<% }); %>
<% }); %>
<% }); %>
</ul>
</div>
<% var t_results = req.flash('temp_results'); %>
<% if(t_results[0]){ %>
<%
t_results = t_results[0];
sails.log.info("Results Restored");
%>
<% } %>
<% } %>
答案 1 :(得分：0)
只需添加以下代码行即可查看错误的响应
SomeModel.create({}).then(function(){
}).catch(function(err){
console.log(err.ValidationError);
})