How to click a button to delete in thinkphp

In recent years, with the popularization of the Internet, the scale of website construction has become larger and larger, and web development technology has become more and more mature. Among them, the ThinkPHP framework is widely welcomed for its efficiency, stability and ease of development. However, with the increase in business needs, when developing using the ThinkPHP framework, operations involving addition, deletion, modification and query of data have gradually become one of the common requirements in development.

In development, deletion operations can be said to be one of the scenarios that occur in large numbers. Although ThinkPHP provides many deletion methods, in specific development it is often necessary to implement the deletion function according to specific customization requirements. The following introduces an operation method that can implement a customized delete button.

For simple data deletion operations, you can use the shortcut method provided by ThinkPHP to delete directly. However, if the deletion involves cascading deletion of data, or requires specific permissions to perform the deletion operation, using the shortcut method is no longer applicable. At this time, you need to use a customized delete button to achieve this.

The specific implementation method is as follows:

First, we need to add the html code of the delete button in the template file, and name the id and class del-btn. The code is as follows:

<a>删除</a>

In the code, we set the text of the button to "Delete" and added a style class to the button.

Next, you need to bind a click event to the button and define the execution logic of the event. The code is as follows:

$(document).on('click', '#del-btn', function(){
  $.ajax({
    type: 'post',
    url: 'delete.php',
    data: {'id': id},
    success: function(result){
      if(result.status == 1){
        alert(result.message);
      }else{
        alert(result.message);
      }
    }
  });
});

In the code, we select del-btn through the jQuery selector and add a callback function for the click event. In this callback function, we use ajax asynchronous request to pass the data ID that needs to be deleted to the background delete.php file in post mode for processing. In the callback function, the corresponding prompt information is displayed based on the background processing results.

Finally, we need to define the code to implement the delete function in the background delete.php file. The specific code is as follows:

$id = $_POST['id'];
$res = $db->table('table_name')->where('id', $id)->delete();
if($res){
  echo json_encode(array('status'=>1, 'message'=>'删除成功！'));
}else{
  echo json_encode(array('status'=>0, 'message'=>'删除失败！'));
}

In the code, we receive the id parameter passed by ajax, use ThinkPHP's table method to delete the data, and return the corresponding json data based on the deletion result.

After completing the writing of all the above codes, you can successfully implement the customized delete button function. Among them, ajax asynchronous requests can ensure that users do not need to jump to the page when performing deletion operations, thus improving the efficiency of deletion operations. At the same time, customized deletion operations can also greatly improve the security and controllability of data operations.

In short, during the development process using the ThinkPHP framework, customizing the implementation of the delete button can bring many benefits to our team. Not only can it improve our development efficiency, but it can also ensure the stability and security of our data operations.

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