【发布时间】：2013-08-02 16:09:32
【问题描述】：
我觉得我遗漏了一小步，显然其他相关问题的每个人都理解。
我创建了一个简单的 CI 2 视图、控制器和模型，如下所示：
我已将 dompdf 安装到 helpers 文件夹中，如下所示：
applications/helpers/dompdf
applications/helpers/dompdf/dompdf_help.php
我想要发生的是当用户单击视图页面上的提交按钮，将表单数据发送到数据库，然后获取该表单的 pdf。
在出现未定义的 var 错误或什么都没有出现之间，除了数据进入 db，我看不到我缺少什么。
有人可以指导我吗？我在这里没有得到什么？
查看
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>test pdf</title>
</head>
<body>
<?php // Change the css classes to suit your needs
$attributes = array('class' => '', 'id' => '');
echo form_open('quicksubmit', $attributes); ?>
<p>
<label for="title">Title <span class="required">*</span></label>
<?php echo form_error('title'); ?>
<?php // Change the values in this array to populate your dropdown as required ?>
<?php $options = array(
'' => 'Please Select',
'Mrs' => 'Mrs',
'Miss' => 'Miss',
'Ms' => 'Ms',
'Mr' => 'Mr',
); ?>
<br /><?php echo form_dropdown('title', $options, set_value('title'))?>
</p>
<p>
<label for="first_name">First Name</label>
<?php echo form_error('first_name'); ?>
<br /><input id="first_name" type="text" name="first_name" maxlength="100" value="<?php echo set_value('first_name'); ?>" />
</p>
<p>
<label for="last_name">Last Name <span class="required">*</span></label>
<?php echo form_error('last_name'); ?>
<br /><input id="last_name" type="text" name="last_name" maxlength="100" value="<?php echo set_value('last_name'); ?>" />
</p>
<p>
<label for="branch">Branch</label>
<?php echo form_error('branch'); ?>
<?php // Change the values in this array to populate your dropdown as required ?>
<?php $options = array(
'' => 'Please Select',
'Branch 1' => 'Branch One',
'Branch 2' => 'Branch Two',
); ?>
<br /><?php echo form_dropdown('branch', $options, set_value('branch'))?>
</p>
<p>
<label for="zip">Zip</label>
<?php echo form_error('zip'); ?>
<br /><input id="zip" type="text" name="zip" maxlength="7" value="<?php echo set_value('zip'); ?>" />
</p>
<p>
<?php echo form_submit( 'submit', 'Submit'); ?>
</p>
<?php echo form_close(); ?>
</body>
</html>
控制器
<?php
class Quicksubmit extends CI_Controller {
function __construct()
{
parent::__construct();
$this->load->library('form_validation');
$this->load->database();
$this->load->helper('form');
$this->load->helper('url');
$this->load->model('quicksubmit_model');
}
function index()
{
$this->form_validation->set_rules('title', 'Title', 'required|trim|xss_clean|max_length[50]');
$this->form_validation->set_rules('first_name', 'First Name', 'trim|xss_clean|max_length[100]');
$this->form_validation->set_rules('last_name', 'Last Name', 'required|trim|xss_clean|max_length[100]');
$this->form_validation->set_rules('branch', 'Branch', 'trim|xss_clean|max_length[100]');
$this->form_validation->set_rules('zip', 'Zip', 'trim|xss_clean|is_numeric|max_length[7]');
$this->form_validation->set_error_delimiters('<br /><span class="error">', '</span>');
if ($this->form_validation->run() == FALSE) // validation hasn't been passed
{
$this->load->view('quicksubmit_view');
}
else // passed validation proceed to post success logic
{
// build array for the model
$this->pdf($output);
$form_data = array(
'title' => set_value('title'),
'first_name' => set_value('first_name'),
'last_name' => set_value('last_name'),
'branch' => set_value('branch'),
'zip' => set_value('zip')
);
// run insert model to write data to db
if ($this->quicksubmit_model->SaveForm($form_data) == TRUE) // the information has therefore been successfully saved in the db
{
redirect('quicksubmit/success'); // or whatever logic needs to occur
}
else
{
echo 'An error occurred saving your information. Please try again later';
// Or whatever error handling is necessary
}
}
}
function success()
{
redirect(base_url(),'refresh');
/*echo 'this form has been successfully submitted with all validation being passed. All messages or logic here. Please note
sessions have not been used and would need to be added in to suit your app';*/
}
function pdf()
{
$this->load->helper(array('dompdf', 'file'));
// page info here, db calls, etc.
$html = $this->load->view('quicksubmit_view', $data, true);
pdf_create($html, 'filename');
/*or
$data = pdf_create($html, '', false);
write_file('name', $data);*/
//if you want to write it to disk and/or send it as an attachment
}
}
?>
型号
<?php
class Quicksubmit_model extends CI_Model {
function __construct()
{
parent::__construct();
}
// --------------------------------------------------------------------
/**
* function SaveForm()
*
* insert form data
* @param $form_data - array
* @return Bool - TRUE or FALSE
*/
function SaveForm($form_data)
{
$this->db->insert('quicksubmit', $form_data);
if ($this->db->affected_rows() == '1')
{
return TRUE;
}
return FALSE;
}
}
?>
dompdf_help.php 文件
<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
function pdf_create($html, $filename='', $stream=TRUE)
{
require_once("dompdf/dompdf_config.inc.php");
$dompdf = new DOMPDF();
$dompdf->load_html($html);
$dompdf->render();
if ($stream) {
$dompdf->stream($filename.".pdf");
} else {
return $dompdf->output();
}
}
?>
【问题讨论】：
-
我不是 CI 的用户，所以请原谅我的无知。您调用
$this->pdf($output)但不设置 $output 并且pdf方法不接受任何参数。只是一个代码清洁点。在pdf方法中，您加载一个视图，将$data变量传递给它。该变量是由 CI 设置的，因为它没有在我能看到的其他任何地方定义吗？您可能希望删除不需要的所有内容以简化代码并解决错误（您应该在此处发布，因为它们可能相关）。
标签： codeigniter-2 dompdf