嗯，这是一个包含添加/编辑/删除选项的crud应用程序，我想实现为了添加另一个按钮来查看所选行但我的查询不起作用，我发送一个http请求Ajax和我正在获取数据，但查询不起作用。
Form_view.html
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title></title>
<link rel="stylesheet" href="dist/bootstrap.min.css" type="text/css" media="all">
<link href="dist/jquery.bootgrid.css" rel="stylesheet" />
<script src="dist/jquery-1.11.1.min.js"></script>
<script src="dist/bootstrap.min.js"></script>
<script src="dist/jquery.bootgrid.min.js"></script>
</head>
<body>
<div class="container">
<div class="">
<h1></h1>
<div class="col-sm-8">
<div class="well clearfix">
<div class="pull-right"><button type="button" class="btn btn-xs btn-primary" id="command-add" data-row-id="0">
<span class="glyphicon glyphicon-plus"></span> Record</button></div></div>
<table id="employee_grid" class="table table-condensed table-hover table-striped" width="60%" cellspacing="0" data-toggle="bootgrid">
<thead>
<tr>
<th data-column-id="id" data-type="numeric" data-identifier="true">Empid</th>
<th data-column-id="employee_name">Name</th>
<th data-column-id="employee_salary">Salary</th>
<th data-column-id="employee_age">Age</th>
<th data-column-id="commands" data-formatter="commands" data-sortable="false">Commands</th>
</tr>
</thead>
</table>
</div>
</div>
</div>
<div id="add_model" class="modal fade">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
<h4 class="modal-title">Add Employee</h4>
</div>
<div class="modal-body">
<form method="post" id="frm_add">
<input type="hidden" value="add" name="action" id="action" >
<div class="form-group">
<label for="name" class="control-label">Name:</label>
<input type="text" class="form-control" id="name" name="name" required></input>
</div>
<div class="form-group">
<label for="salary" class="control-label">Salary:</label>
<input type="text" class="form-control" id="salary" name="salary" required></input>
</div>
<div class="form-group">
<label for="salary" class="control-label">Age:</label>
<input type="text" class="form-control" id="age" name="age" required></input>
</div>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
<button type="button" id="btn_add" class="btn btn-primary">Save</button>
</div>
</form>
</div>
</div>
</div>
<div id="edit_model" class="modal fade">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
<h4 class="modal-title">Edit Employee</h4>
</div>
<div class="modal-body">
<form method="post" id="frm_edit">
<input type="hidden" value="edit" name="action" id="action">
<input type="hidden" value="0" name="edit_id" id="edit_id">
<div class="form-group">
<label for="name" class="control-label">Name:</label>
<input type="text" class="form-control" id="edit_name" name="edit_name">
</div>
<div class="form-group">
<label for="salary" class="control-label">Salary:</label>
<input type="text" class="form-control" id="edit_salary" name="edit_salary"/>
</div>
<div class="form-group">
<label for="salary" class="control-label">Age:</label>
<input type="text" class="form-control" id="edit_age" name="edit_age"/>
</div>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
<button type="button" id="btn_edit" class="btn btn-primary">Save</button>
</div>
</form>
</div>
</div>
</div>
<div id="view_model" class="modal fade">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
<h4 class="modal-title">View Employee</h4>
</div>
<div class="modal-body">
<form method="post" id="frm_view">
<input type="hidden" value="view" name="action" id="action">
<input type="hidden" value="0" name="view_id" id="view_id">
<div class="form-group">
<label for="name" class="control-label">Name:</label>
<input type="text" class="form-control" id="view_name" name="view_name">
</div>
<div class="form-group">
<label for="salary" class="control-label">Salary:</label>
<input type="text" class="form-control" id="view_salary" name="view_salary"/>
</div>
<div class="form-group">
<label for="salary" class="control-label">Age:</label>
<input type="text" class="form-control" id="view_age" name="view_age"/>
</div>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
<button type="button" id="btn_view" class="btn btn-primary">Save</button>
</div>
</form>
</div>
</div>
</div>
</body>
</html>
<script type="text/javascript">
$( document ).ready(function() {
var grid = $("#employee_grid").bootgrid({
ajax: true,
rowSelect: true,
post: function ()
{
/* To accumulate custom parameter with the request object */
return {
id: "b0df282a-0d67-40e5-8558-c9e93b7befed"
};
},
url: "response.php",
formatters: {
"commands": function(column, row)
{
return "<button type=\"button\" class=\"btn-success btn-default command-edit\" data-row-id=\"" + row.id + "\"><span class=\"glyphicon glyphicon-edit\"></span></button> " +
"<button type=\"button\" class=\"btn-danger btn-default command-delete\" data-row-id=\"" + row.id + "\"><span class=\"glyphicon glyphicon-trash\"></span></button> " +
"<button type=\"button\" class=\"btn-warning btn-default command-view\" data-row-id=\"" + row.id + "\"><span class=\"glyphicon glyphicon-eye-open\"></span></button>";
}
}
}).on("loaded.rs.jquery.bootgrid", function()
{
/* Executes after data is loaded and rendered */
grid.find(".command-edit").on("click", function(e)
{
//alert("You pressed edit on row: " + $(this).data("row-id"));
var ele =$(this).parent();
var g_id = $(this).parent().siblings(':first').html();
var g_name = $(this).parent().siblings(':nth-of-type(2)').html();
console.log(g_id);
console.log(g_name);
//console.log(grid.data());//
$('#edit_model').modal('show');
if($(this).data("row-id") >0) {
// collect the data
$('#edit_id').val(ele.siblings(':first').html()); // in case we're changing the key
$('#edit_name').val(ele.siblings(':nth-of-type(2)').html());
$('#edit_salary').val(ele.siblings(':nth-of-type(3)').html());
$('#edit_age').val(ele.siblings(':nth-of-type(4)').html());
} else {
alert('Now row selected! First select row, then click edit button');
}
}).end()
//View data
grid.find(".command-view").on("click", function(e)
{
//alert("You pressed edit on row: " + $(this).data("row-id"));
var ele =$(this).parent();
var g_id = $(this).parent().siblings(':first').html();
var g_name = $(this).parent().siblings(':nth-of-type(2)').html();
console.log(g_id);
console.log(g_name);
//console.log(grid.data());//
$('#view_model').modal('show');
if($(this).data("row-id") >0) {
// collect the data
$('#view_id').val(ele.siblings(':first').html()); // in case we're changing the key
$('#view_name').val(ele.siblings(':nth-of-type(2)').html());
$('#view_salary').val(ele.siblings(':nth-of-type(3)').html());
$('#view_age').val(ele.siblings(':nth-of-type(4)').html());
} else {
alert('error');
}
}).end()
//end view data
grid.find(".command-delete").on("click", function(e)
{
var conf = confirm('Delete ' + $(this).data("row-id") + ' items?');
alert(conf);
if(conf){
$.post('response.php', { id: $(this).data("row-id"), action:'delete'}
, function(){
// when ajax returns (callback),
$("#employee_grid").bootgrid('reload');
});
//$(this).parent('tr').remove();
//$("#employee_grid").bootgrid('remove', $(this).data("row-id"))
}
});
});
function ajaxAction(action) {
data = $("#frm_"+action).serializeArray();
$.ajax({
type: "POST",
url: "response.php",
data: data,
dataType: "json",
success: function(response)
{
$('#'+action+'_model').modal('hide');
$("#employee_grid").bootgrid('reload');
}
});
}
$( "#command-add" ).click(function() {
$('#add_model').modal('show');
});
$( "#btn_add" ).click(function() {
ajaxAction('add');
});
$( "#btn_edit" ).click(function() {
ajaxAction('edit');
});
$( "#btn_view" ).click(function() {
ajaxAction('view');
});
});
</script>
response.php
<?php
//include connection file
include_once("connection.php");
$db = new dbObj();
$connString = $db->getConnstring();
$params = $_REQUEST;
$action = isset($params['action']) != '' ? $params['action'] : '';
$empCls = new Employee($connString);
switch($action) {
case 'add':
$empCls->insertEmployee($params);
break;
case 'view':
$empCls->viewEmployee($params);
break;
case 'edit':
$empCls->updateEmployee($params);
break;
case 'delete':
$empCls->deleteEmployee($params);
break;
default:
$empCls->getEmployees($params);
return;
}
class Employee {
protected $conn;
protected $data = array();
function __construct($connString) {
$this->conn = $connString;
}
public function getEmployees($params) {
$this->data = $this->getRecords($params);
echo json_encode($this->data);
}
function insertEmployee($params) {
$data = array();;
$sql = "INSERT INTO `employee` (employee_name, employee_salary, employee_age) VALUES('" . $params["name"] . "', '" . $params["salary"] . "','" . $params["age"] . "'); ";
echo $result = mysqli_query($this->conn, $sql) or die("error to insert employee data");
}
function getRecords($params) {
$rp = isset($params['rowCount']) ? $params['rowCount'] : 10;
if (isset($params['current'])) { $page = $params['current']; } else { $page=1; };
$start_from = ($page-1) * $rp;
$sql = $sqlRec = $sqlTot = $where = '';
if( !empty($params['searchPhrase']) ) {
$where .=" WHERE ";
$where .=" ( employee_name LIKE '".$params['searchPhrase']."%' ";
$where .=" OR employee_salary LIKE '".$params['searchPhrase']."%' ";
$where .=" OR employee_age LIKE '".$params['searchPhrase']."%' )";
}
if( !empty($params['sort']) ) {
$where .=" ORDER By ".key($params['sort']) .' '.current($params['sort'])." ";
}
// getting total number records without any search
$sql = "SELECT * FROM `employee` ";
$sqlTot .= $sql;
$sqlRec .= $sql;
//concatenate search sql if value exist
if(isset($where) && $where != '') {
$sqlTot .= $where;
$sqlRec .= $where;
}
if ($rp!=-1)
$sqlRec .= " LIMIT ". $start_from .",".$rp;
$qtot = mysqli_query($this->conn, $sqlTot) or die("error to fetch tot employees data");
$queryRecords = mysqli_query($this->conn, $sqlRec) or die("error to fetch employees data");
while( $row = mysqli_fetch_assoc($queryRecords) ) {
$data[] = $row;
}
$json_data = array(
"current" => intval($params['current']),
"rowCount" => 10,
"total" => intval($qtot->num_rows),
"rows" => $data // total data array
);
return $json_data;
}
function updateEmployee($params) {
$data = array();
//print_R($_POST);die;
$sql = "Update `employee` set employee_name = '" . $params["edit_name"] . "', employee_salary='" . $params["edit_salary"]."', employee_age='" . $params["edit_age"] . "' WHERE id='".$_POST["edit_id"]."'";
echo $result = mysqli_query($this->conn, $sql) or die("error to update employee data");
}
function viewEmployee($params) {
$data = array();
//print_R($_POST);die;
$sql = "Select employee_name FROM employee WHERE id='".$params["id"]."'";
echo $result = mysqli_query($this->conn, $sql) or die("error to view employee data");
}
function deleteEmployee($params) {
$data = array();
//print_R($_POST);die;
$sql = "delete from `employee` WHERE id='".$params["id"]."'";
echo $result = mysqli_query($this->conn, $sql) or die("error to delete employee data");
}
}
?>
我查询数据的查询是：
function viewEmployee($params) {
$data = array();
//print_R($_POST);die;
$sql = "Select employee_name FROM employee WHERE id='".$params["id"]."'";
echo $result = mysqli_query($this->conn, $sql) or die("error to view employee data");
}
任何想法，我该怎么做才能从数据库中选择数据并以html格式打印出来？
答案 0 :(得分：0)
您正在使用$_REQUEST中的错误变量名称，当您使用ìd时，您正在使用view_id，因为它是在表单隐藏字段中配置的。
尝试
function viewEmployee($params) {
$data = array();
//print_R($_POST);die;
$sql = "Select employee_name FROM employee WHERE id='".$params["view_id"]."'";
$result = mysqli_query($this->conn, $sql) or die("error to view employee data");
echo json_encode($result->fetch_all(MYSQLI_ASSOC));
}