javascript - meteor .js : Error not caught on client in method call

Question

如果方法中出现任何错误，我会在更新 mongoDb 中的文档时尝试抛出用户定义的错误。我正在调用方法并 try catch 错误，但我没有收到错误。仅在服务器控制台中打印错误。我怎样才能捕获客户端的错误？

我的代码示例如下所示:

//Method

     methodName: (userData) ->
        if(Meteor.isServer and this.userId)
          User.update {_id:this.userId},{$set:{username:userData.username, "profile.name": userData.name ,"emails.$.address": userData.email}}, (error) ->
            if error and error.code == 11000
              throw new Meteor.Error 403, 'Email already in used'




//client Side

        $meteor.call('methodName',result).then ((success) ->
                console.log success // is undefined in both case, when updates and in case of error
                if success
                  console.log 'data updated'

                ), (err) ->
                  console.log err // not entered in this region

Answer 1

您的代码有大量错误。

Meteor.methods({

  methodName: function(userData){

    // you have to create the $set hash programatically first
    var setHash = {
      "$set": {
        "username": userData.username,
        "profile.name": userData.name,
        // what's going on here with the dollar sign you originally had?
        "emails.0.address": userData.email
      }
    };

    if( Meteor.isServer && this.userId() ){
      // It's Users, not User
      return Users.update( { _id: this.userId() }, setHash, function(error, numberOfAffectedDocuments){
        if(error && error.code == "11000"){
          // Error names have to be a string
          throw new Meteor.error("403", "Email already in use.");
        } else {
          return "Success! The number of affected documents is " + numberOfAffectedDocuments;
      });
    };

  }

});

// in your original code you never sent your Meteor Method any arguments when calling it
Meteor.call('methodName', userDataObject, function(error, result){
  if(error){
    console.log("there was an error: ", error);
  } else {
    console.log("method call was a success: ", result);
  };
});

引用文献:

http://docs.mongodb.org/manual/reference/operator/update/set/#set-elements-in-arrays

http://docs.meteor.com/#/full/meteor_user