javascript - 将 ajax 错误和成功函数替换为传递给父函数的替代函数

Question

我编写了以下 JavaScript 类:

var DbObject = Class.extend({
  init: function(classname, id){
      // do some init stuff
  },
  send: function(isError){
       if(isError){
           // do something else
       }
       else if(!uploading){ // global 
          var obj =$.parseJSON(JSON.stringify(this));
          $.ajax({
                type: "POST",
                dataType: "json",
                url: "ajaxManager.php",
                data: {data:obj},
                success: function(response) { 
                   response.success=true;
                   if(response.callback) window[response.callback](response);
                   console.log(response);
                },
                error: function(xhr, status, error) {
                  var err = eval("(" + xhr.responseText + ")");
                  alert(err.Message);
                }
          });
       }
       else{
           console.log('waiting....');
           var $this =this;
           setTimeout(function(){$this.send(); }, 2000);
       }
  }
});

现在，我使用这样的类:

var object = new DbObject('PageSettings', rowId);
object.send();

我希望也能够像这样使用它:

var object = new DbObject('PageSettings', rowId);
object.send(false, {
    success: function (response) {
        // some alternate code to run instead of the ajax `success: function`
    },
    error: function (xhr, status, error) {
        // some alternate code to run instead of the ajax `error: function`
    }
});

调用 .send() 时提供的 { success://...., error://...} 应替换 { success://..., error://...} 在它进行的 ajax 调用中。

实现这一目标的正确方法是什么？

Answer 1

像这样更改发送函数:

send: function (isError,handlers) {
    if (!handlers) handlers = {};

    if (!uploading) {
        var obj = $.parseJSON(JSON.stringify(this));
        $.ajax({
            type: "POST",
            dataType: "json",
            url: "ajaxManager.php",
            data: {
                data: obj
            },
            success: handlers.success || function (response) {
               ....
            },
            error: handlers.error || function (xhr, status, error) {
                ....
            }
        });
    } else {
        ....
    }
}