我测试了Sails.js中的以下Employee.js模型，我发现了一些我觉得难以理解的东西。
当发布创建新员工的表单时，我在Employee.js模型的第一个定义中遇到以下错误，但Employee.js的第二个定义有效。那么Employee.js的两个定义之间的区别是什么？
错误：
Error (E_VALIDATION) :: 3 attributes are invalid
at WLValidationError.WLError (/usr/local/lib/node_modules/sails/node_modules/waterline/lib/waterline/error/WLError.js:33:18)
at new WLValidationError (/usr/local/lib/node_modules/sails/node_modules/waterline/lib/waterline/error/WLValidationError.js:20:28)
at /usr/local/lib/node_modules/sails/node_modules/waterline/lib/waterline/query/validate.js:45:43
at allValidationsChecked (/usr/local/lib/node_modules/sails/node_modules/waterline/lib/waterline/core/validations.js:195:5)
at done (/usr/local/lib/node_modules/sails/node_modules/waterline/node_modules/async/lib/async.js:135:19)
at /usr/local/lib/node_modules/sails/node_modules/waterline/node_modules/async/lib/async.js:32:16
at /usr/local/lib/node_modules/sails/node_modules/waterline/lib/waterline/core/validations.js:186:14
at done (/usr/local/lib/node_modules/sails/node_modules/waterline/node_modules/async/lib/async.js:135:19)
at /usr/local/lib/node_modules/sails/node_modules/waterline/node_modules/async/lib/async.js:32:16
at /usr/local/lib/node_modules/sails/node_modules/waterline/lib/waterline/core/validations.js:157:64
Invalid attributes sent to Employee:
• name
• `undefined` should be a string (instead of "null", which is a object)
• "required" validation rule failed for input: null
• email
• `undefined` should be a email (instead of "null", which is a object)
• "required" validation rule failed for input: null
• password
• `undefined` should be a string (instead of "null", which is a object)
• "required" validation rule failed for input: null
定义1：Employee.js
module.exports = {
attributes: {
name: {
type: 'STRING',
},
email: {
type: 'STRING',
email: true,
},
password: {
type: 'STRING',
},
toJSON: function() {
var obj = this.toObject();
return {
name: obj.name,
email: obj.email,
password: obj.password
}
}
}
};
定义2：Employee.js
module.exports = {
attributes: {
name: 'STRING',
email: 'STRING',
password: 'STRING',
toJSON: function() {
var obj = this.toObject();
return {
name: obj.name,
email: obj.email,
password: obj.password
}
}
}
};
创建新员工的表单如下：
<form action="/signupemployee" method="POST">
<table>
<tr><td>Name</td><td><input type=”text” name=”name”></td></tr>
<tr><td>Password</td><td><input type=”password” name=”password”></td></tr>
<tr><td>Email</td><td><input type=”email” name=”email”></td></tr>
<tr><td></td><td><input type="submit"></td>
</table>
</form>
答案 0 :(得分：0)
只有一个区别是 存在。在您的第二个模型中，email属性不需要包含有效电子邮件格式的字符串。据我所知，定义如：
name: {
type: "STRING"
}
和
name: "STRING"
意图是等效的，所以这可能是Waterline中的一个错误。
虽然这个问题在不久前被问过，但仍然值得提出一个问题以确保它得到解决。
答案 1 :(得分：0)
这应该有效：
using System;
using System.Collections.Generic;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Net;
using System.Net.Sockets;
using System.IO;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
public static void invia(byte[] bytetosend)
{
// Data buffer for incoming data.
byte[] bytes = new byte[1024];
// Connect to a remote device.
try
{
// Establish the remote endpoint for the socket.
// This example uses port 11000 on the local computer.
IPHostEntry ipHostInfo = Dns.Resolve(Dns.GetHostName());
IPAddress ipAddress = ipHostInfo.AddressList[0];
IPEndPoint remoteEP = new IPEndPoint(ipAddress, 11000);
// Create a TCP/IP socket.
Socket sender = new Socket(AddressFamily.InterNetwork,
SocketType.Stream, ProtocolType.Tcp);
// Connect the socket to the remote endpoint. Catch any errors.
try
{
sender.Connect(remoteEP);
Console.WriteLine("Socket connected to {0}",
sender.RemoteEndPoint.ToString());
// Encode the data string into a byte array.
var mahByteArray = new List<byte>();
mahByteArray.AddRange(bytetosend);
string eof = "<EOF>";
mahByteArray.Insert(0, Convert.ToByte(eof)); // Adds eof bytes to the beginning.
byte[] msg = mahByteArray.ToArray();
// Send the data through the socket.
int bytesSent = sender.Send(msg);
// Receive the response from the remote device.
int bytesRec = sender.Receive(bytes);
Console.WriteLine("Echoed test = {0}",
Encoding.ASCII.GetString(bytes, 0, bytesRec));
// Release the socket.
sender.Shutdown(SocketShutdown.Both);
sender.Close();
}
catch (ArgumentNullException ane)
{
Console.WriteLine("ArgumentNullException : {0}", ane.ToString());
}
catch (SocketException se)
{
Console.WriteLine("SocketException : {0}", se.ToString());
}
catch (Exception e)
{
Console.WriteLine("Unexpected exception : {0}", e.ToString());
}
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
}
public void ricevi()
{
// Data buffer for incoming data.
List<byte> bytes = (new Byte[1024]).ToList();
List<byte> scambioArray = new List<byte>();
// Establish the local endpoint for the socket.
// Dns.GetHostName returns the name of the
// host running the application.
IPHostEntry ipHostInfo = Dns.Resolve(Dns.GetHostName());
IPAddress ipAddress = ipHostInfo.AddressList[0];
IPEndPoint localEndPoint = new IPEndPoint(ipAddress, 11000);
// Create a TCP/IP socket.
Socket listener = new Socket(AddressFamily.InterNetwork,
SocketType.Stream, ProtocolType.Tcp);
// Bind the socket to the local endpoint and
// listen for incoming connections.
try
{
listener.Bind(localEndPoint);
listener.Listen(10);
// Start listening for connections.
while (true)
{
Console.WriteLine("Waiting for a connection...");
// Program is suspended while waiting for an incoming connection.
Socket handler = listener.Accept();
string eofr = "<EOF>";
List<byte> trova = Encoding.UTF8.GetBytes(eofr).ToList();
// An incoming connection needs to be processed.
while (true)
{
bytes = (new byte[1024]).ToList();
int bytesRec = handler.Receive(bytes.ToArray());
if (bytes.Contains(trova[0]))
{
List<byte> mahByteArray = new List<byte>();
mahByteArray.AddRange(bytes);
mahByteArray.Remove(trova[0]);
bytes = mahByteArray.ToArray().ToList();
break;
}
scambioArray.AddRange(bytes);
}
// Echo the data back to the client.
byte[] msg = scambioArray.ToArray();
MemoryStream stream = new MemoryStream(msg);
MessageData.Image = Image.FromStream(stream);
handler.Shutdown(SocketShutdown.Both);
handler.Close();
}
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
}
}
}