我尝试使用远程规则来检查add_book表中的详细信息(标题)是否已经存在...但是使用以下代码,它没有给出任何结果...... 脚本: -
title: {
required: true,
remote: {
url: "<?php echo base_url('add_books/check_title_exists'); ?>",
type: "post",
}
},
控制器: -
public function check_title_exists() {
$title = $this->input->post('title');
$check_title = $this->add_book_model->check_title($title);
if ($check_title > 0) {
return json_encode(false);
} else {
return json_encode(true);
}
}
型号: -
public function check_title($title) {
$this->db->where('title', $title);
$query = $this->db->get('add_book');
if ($query->num_rows() > 0) {
return TRUE;
} else {
return FALSE;
}
}
答案 0 :(得分:1)
请尝试这对我工作正常: - 在脚本中
title: {
required: true,
remote: {
url: "<?php echo base_url('add_books/check_title_exists'); ?>",
type: "post",
data: {
title: function () {
return $("#title").val();
}
}
}
},
在控制器中: -
function check_title_exists(){
$count= $this->add_book_model->isTitleExists($this->input->post('title'));
if ( $count == TRUE ) {
echo json_encode(FALSE);
} else {
echo json_encode(TRUE);
}
}
public function isTitleExists($title) {
$query = $this->db
->select('title')
->where('title', $title)
->get('books');
if( $query->num_rows() > 0 ){
return TRUE;
} else {
return FALSE;
}
}
答案 1 :(得分:0)
控制器:
function checkremote(){
$uName['email'] = $this->input->post('email');
$isUNameCount = $this->User_model->alreadyexits('candidate',$uName);
if($isUNameCount > 0){
echo 'false';
}else{
echo 'true';
}
}
型号:
function alreadyexits($table,$var) {
$query = $this->db ->select('*') ->where($var) ->get($table) ->num_rows(); return $query;
}
验证:
email: {
required: true,
email: true,
remote: {
url:"",
type: "post",
data:{
name:function(){
return $('#email').val()
}
}
}
}