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在运行时为处理程序添加/更改通道(Add/Change channel for handler at runtime)

在3.1.0电路中,有没有办法在运行时为处理程序设置通道? 一个有用的替代方法是在运行时添加处理程序并指定通道。

我检查了Manager.addHandler实现,但无法使其工作。 我试过了:

self._my_method.__func__.channel = _my_method_channel
self._my_method.__func__.names = ["event name"]
self.addHandler(self._my_method)

In circuits 3.1.0, is there a way to set at runtime the channel for a handler? An useful alternative would be to add a handler at runtime and specify the channel.

I've checked the Manager.addHandler implementation but couldn't make it work. I tried:

self._my_method.__func__.channel = _my_method_channel
self._my_method.__func__.names = ["event name"]
self.addHandler(self._my_method)

原文:https://stackoverflow.com/questions/31999671
更新时间:2022-11-21 06:11

最满意答案

首先声明一个将在按钮点击时调用的函数:

/**
*   Function that performs various operations on button click
*   @param btn {jQuery object}: The button that triggered the click event
*/
function nano(btn) {   
   // Do your stuff here...       
   btn.appendTo("div#name_selected")
      .removeClass("names")
      .addClass("added_name");

   // Get the value attribute
   var name_value = btn.attr("value");

   // Make ajax call
   if (name_value) {
      ajaxSubmit(name_value);
   }       
}

声明要执行ajax调用的函数:

function ajaxSubmit(val) {
    // Check if 'val' is not undefined
    if (val) {
       $.ajax({
          type:"POST",
          url:"z.php",
          cache:false,
          data: { val: val },
          success:function(data) {
             window.location.href="show.php";
          },
          error:function() {
             // error handling here...
          }
       });
    }
}

在所需元素上添加事件侦听器:

$(document).on('click', '.button-class', function() {
   // Call nano passing the clicked button as parameter
   // this --> the javascript object that triggered the click event
   // $(this) --> the jQuery object of 'this' 
   nano($(this));
});

重要提示

从所有按钮中删除onClick属性! ( 不要使用它 ,而是使用on()函数添加事件侦听器)


First of all declare a function that is going to be called on button click:

/**
*   Function that performs various operations on button click
*   @param btn {jQuery object}: The button that triggered the click event
*/
function nano(btn) {   
   // Do your stuff here...       
   btn.appendTo("div#name_selected")
      .removeClass("names")
      .addClass("added_name");

   // Get the value attribute
   var name_value = btn.attr("value");

   // Make ajax call
   if (name_value) {
      ajaxSubmit(name_value);
   }       
}

Declare the function that is going to perform the ajax call:

function ajaxSubmit(val) {
    // Check if 'val' is not undefined
    if (val) {
       $.ajax({
          type:"POST",
          url:"z.php",
          cache:false,
          data: { val: val },
          success:function(data) {
             window.location.href="show.php";
          },
          error:function() {
             // error handling here...
          }
       });
    }
}

Add an event listener on the desired elements:

$(document).on('click', '.button-class', function() {
   // Call nano passing the clicked button as parameter
   // this --> the javascript object that triggered the click event
   // $(this) --> the jQuery object of 'this' 
   nano($(this));
});

IMPORTANT:

Remove onClick attributes from all your buttons! (Don't use it, instead use the on() function to add event listeners)

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