我有一个表单，允许我将新客户添加到数据库表中。
customer_name字段是唯一字段。因此，我想在尝试写入数据库之前对输入字段执行表单验证。
理想情况下，验证可以是双重的。当用户输入客户名称时，如果名称可用，则显示ajax查找。第二，codeigniter的验证功能？如果这不可用，也许在提交时可以查询是否存在然后相应处理？
我已经审查并广泛搜索了一个完整的例子，但没有遇到任何问题。试了好几个没运气。不幸的是，我的java脚本和jquery技能不存在，并试图绕过代码点火器。
我已经审核并尝试了以下文章： http://vortexdev.netii.net/article_17/Check_the_user_name_availability_with___Codeigniter_jQuery CodeIgniter - Checking to see if a value already exists in the database http://www.joshuawinn.com/check-if-email-username-exists-with-codeigniter-and-jquery-validation/
我的代码目前是：
jquery链接：
<head>
<meta charset="utf-8">
<title><?php echo $title; ?></title>
<link href="<?php echo base_url(); ?>styles/style.css" type="text/css" rel="stylesheet">
<link href="<?php echo base_url(); ?>styles/menu.css" type="text/css" rel="stylesheet">
<script type="text/javascript" src="jquery-1.9.1.min.js"></script>
<script type="text/javascript">
</script>
</head>
我的控制器：
function create_customer()
{
$this->form_validation->set_rules("customer_name","`Customer Name`","required|min_length[6]|xss_clean");
$this->form_validation->set_rules("address_line_1","`Address Line 1`","required|xss_clean|min_length[6]");
$this->form_validation->set_rules("address_line_2","`Address Line 2`","xss_clean|min_length[6]");
$this->form_validation->set_rules("suburb","`Suburb`","required|xss_clean|min_length[6]");
$this->form_validation->set_rules("city","`City`","required|xss_clean|min_length[6]");
$this->form_validation->set_rules("postalcode","`Postal Code`","required|xss_clean|min_length[4]|max_length[5]");
$this->form_validation->set_rules("primary_contact_name","`Contact Person Name`","required|xss_clean|min_length[6]");
$this->form_validation->set_rules("primary_contact_email","`Contact Person email`","required|valid_email|xss_clean");
$this->form_validation->set_rules("primary_contact_tell","`Contact Person tell`","required|xss_clean|min_length[10]|max_length[14]");
if ($this->form_validation->run() == FALSE){
$data["message"]="";
$data['title']="Master Data Home Page";
$this->load->view("master_data/view_master_data_header",$data);
$this->load->view("master_data/view_master_data_nav");
$this->load->view("master_data/view_content_master_data_create_customer");
$this->load->view("master_data/view_master_data_footer");
} else {
$data = array(
'customer_name' => $this->input->post('customer_name'),
'address_line_1' => $this->input->post('address_line_1'),
'address_line_2' => $this->input->post('address_line_2'),
'suburb' => $this->input->post('suburb'),
'city' => $this->input->post('city'),
'postalcode' => $this->input->post('postalcode'),
'primary_contact_name' => $this->input->post('primary_contact_name'),
'primary_contact_email' => $this->input->post('primary_contact_email'),
'primary_contact_tell' => $this->input->post('primary_contact_tell'),
);
$this->model_master_data->add_record($data);
$this->customer_created_successfully();
}
}
和我的观点：
<?php
echo validation_errors();
?>
<br>
<?php
echo form_open('masterdata/create_customer');
?>
<table>
<tr>
<td valign="top">
<?php
echo form_label("Customer Name", "customer_name");
$data= array(
"name"=>"customer_name",
"id"=>"customer_name",
"value"=>set_value("customer_name"));
echo form_input($data);
echo form_label("Contact Name", "primary_contact_name");
$data= array(
"name"=>"primary_contact_name",
"id"=>"primary_contact_name",
"value"=>set_value("primary_contact_name"));
echo form_input($data);
echo form_label("Contact Email", "primary_contact_email");
$data= array(
"name"=>"primary_contact_email",
"id"=>"primary_contact_email",
"value"=>set_value("primary_contact_email"));
echo form_input($data);
echo form_label("Contact Tel", "primary_contact_tell");
$data= array(
"name"=>"primary_contact_tell",
"id"=>"primary_contact_tell",
"value"=>set_value("primary_contact_tell"));
echo form_input($data);
?>
</td>
<td width="20">
<td valign="top">
<?php
echo form_label("Address Line 1", "address_line_1");
$data= array(
"name"=>"address_line_1",
"id"=>"address_line_1",
"value"=>set_value("address_line_1"));
echo form_input($data);
echo form_label("Address Line 2", "address_line_2");
$data= array(
"name"=>"address_line_2",
"id"=>"address_line_2",
"value"=>set_value("address_line_2"));
echo form_input($data);
echo form_label("Suburb", "suburb");
$data= array(
"name"=>"suburb",
"id"=>"suburb",
"value"=>set_value("suburb"));
echo form_input($data);
echo form_label("City", "city");
$data= array(
"name"=>"city",
"id"=>"city",
"value"=>set_value("city"));
echo form_input($data);
echo form_label("Postal Code", "postalcode");
$data= array(
"name"=>"postalcode",
"id"=>"postalcode",
"value"=>set_value("postalcode"));
echo form_input($data);
?>
</td>
</tr>
</table>
<br>
<p>
<input type="submit" value="Add New Record">
</p>
<br>
<?php
echo form_close();
?>
任何建议都一如既往地受到赞赏。如果您知道我可以遵循的完整工作示例或教程，请告知。
再次感谢，
答案 0 :(得分：2)
好的，这会给你提示
<script type="text/javascript" >
function registerForm(id)
{
$('#user_error').html('');
var name = $.trim($('#name').val());
if(name=='')
{
$('#user_email_error').html('All fields are required!');
return false;
}
$.ajax({
type : 'POST',
data : $('#form-register').serialize(),
url : '<?=base_url()?>login/register_user',
cache : false,
success: function(data){
if(data=='name')
{
$('#user_error').html('This name is already in use try new one!');
return false;
}
else
{
document.location.href='<?=base_url()?>login';
}
}
});
return false;
}
</script>
你控制器中的这个
function register_user()
{
$str = '';
$user_email = $this->input->post('email');
$name= $this->input->post('name');
$data_a['name'] = $name;
$result1 = $this->login_model->check_username($name);
if($result1->num_rows() > 0 )
{
$str = 'name';
}
else
{
$this->login_model->add_user($data_a);
$str = 'goo';
}
echo($str);
exit;
}
这是视图
<div id="user_error" style="color:#FF0000; font-size:13px; font-weight:bold"></div>
<form method="post" action="" id="form-register" title="Register" onSubmit="return registerForm(this)">
<input type="text" name="name" id="name" value="" class="input-unstyled" placeholder="Your name" autocomplete="off">
<button type="submit" id="send-register">Register</button>
</form>