Question

$(document).ready(function() {
    var session = {};
    // Getting PHP session variables into javascript object in order to restric actions for certain users.
    $.getJSON('session.php',function(data){
       session = data;
       console.log(session.role); // currently showing 2.
    });
    // Display datagrid on page
    getRecords();
    // If not admin, disable certain actions
    if(session.role != 1){ // means it is 2
        $("#deletecustomer").attr('class','btn btn-danger disabled');
    }
    });

您好，

我试图根据用户角色禁用删除记录按钮。但我不知道为什么它没有更新我的按钮类，即使控制台显示角色= 2。

由于

Answer 1

由于AJAX是异步的，请在回调中使用它：

$(document).ready(function() {
    var session = {};
    // Getting PHP session variables into javascript object in order to restric actions for certain users.
    $.getJSON('session.php',function(data){
       session = data;
       console.log(session.role); // currently showing 2.
       // Display datagrid on page
       getRecords();
       // If not admin, disable certain actions
       if(session.role != 1){ // means it is 2
           $("#deletecustomer").attr('class','btn btn-danger disabled');
       }
    });

});

编辑：如果没有可能将thisinside放在相同的代码部分，你可以这样做：

var session = {};

var getSessionData = function(callback) {
    $.getJSON('session.php',function(data){
       session = data;
       console.log(session.role); // currently showing 2.
       // Display datagrid on page
       callback.call();
    });
}

var updateButton = function() {
    getRecords();
    // If not admin, disable certain actions
    if(session.role != 1){ // means it is 2
        $("#deletecustomer").attr('class','btn btn-danger disabled');
    }
}

getSessionData(updateButton);

class不通过jquery更新

1 个答案: