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问题描述

我写了一个快速的CI库类来渲染我的页面,所以我不需要一直输入'$ this-> load-> view'和DRY。现在,当我在传递无效数据后重新呈现联系人表单时,错误消息不会出现。



库类:



class扩展CI_Controller {

public function render($ page,$ data){// $ page应为页面视图的路径

$ this-> load-> view('fragments / header',$ data);
$ this-> load-> view('fragments / navigation');
$ this-> load-> view($ page);
$ this-> load-> view('fragments / navigation');
$ this-> load-> view('fragments / footer');

}

}

  class Contact extends CI_Controller {

public function __construct(){
parent: :__构造();

$ this-> load-> helper('form');
$ this-> load-> library(array('form_validation','email','page'));
}

public function index(){

$ this-> form_validation-> set_rules('sender_name','From','required') ;
$ this-> form_validation-> set_rules('sender_email','Email','required | valid_email');
$ this-> form_validation-> set_rules('subject','Subject','required');
$ this-> form_validation-> set_rules('message','Message','required');

if($ this-> form_validation-> run()=== FALSE){

$ this-> load-& );
$ this-> page-> render('contact / contact',array('title'=>'Contact Me')); //传递页面标题

/ *这样工作
$ this-> load-> view('fragments / header',array('title'=>联络我')); // pass in page title
$ this-> load-> view('fragments / navigation');
$ this-> load-> view('contact / contact'); // TODO maintain form state
$ this-> load-> view('fragments / navigation');
$ this-> load-> view('fragments / footer');
*
* /
}

// SNIP


b $ b

联络表单检视:

 < h1>与我联络< / h1> 
<?php echo form_open('contact','id =contact_form'); >

< label for =sender_name>名称:< / label>
<?php echo form_input('sender_name'); >
< span class =error><?php echo form_error('sender_name'); ?>< / span>

< label for =sender_email>电子邮件:< / label>
<?php echo form_input('sender_email'); >
< span class =error><?php echo form_error('sender_email'); ?>< / span>

< label for =subject>主题:< / label>
<?php echo form_input('subject'); >
< span class =error><?php echo form_error('subject'); ?>< / span>

< label for =message>邮件:< / label>
<?php echo form_textarea('message'); >
< span class =error><?php echo form_error('message'); ?>< / span>

<?php echo form_submit('submit','Send'); >

如何使用此帮助程序呈现页面,仍然从form_validation库检索错误消息?

解决方案

在您的views文件夹中创建一个名为 template.php 的视图, it:

 <?php 

$ this-> load-& fragments / header',$ this-> _ci_cached_vars); // pass $ data vars
$ this-> load-> view('fragments / navigation');
$ this-> load-> view($ view);
$ this-> load-> view('fragments / navigation');
$ this-> load-> view('fragments / footer');

然后使用以下控制器代码:

  public function index(){

$ this-> form_validation-> set_rules('sender_name','From','required');
$ this-> form_validation-> set_rules('sender_email','Email','required | valid_email');
$ this-> form_validation-> set_rules('subject','Subject','required');
$ this-> form_validation-> set_rules('message','Message','required');

if($ this-> form_validation-> run()=== FALSE){

$ data = array(
'view'=> ;'contact / contact',
'title'=>'与我联系');
$ this-> load-> view('template',$ data);
}

您不需要创建库,创建一个模板视图,它将加载适当的视图和指定的视图,并将数据传递给它们。


I wrote a quick CI library class to render my pages so I wouldn't have to keep typing '$this->load->view' all the time and for DRY. Now when I re-render my contact form after passing in invalid data the error messages aren't showing up.

The library class:

class Page extends CI_Controller {

    public function render($page, $data) { // $page should be path to page view

        $this->load->view('fragments/header', $data);
        $this->load->view('fragments/navigation');
        $this->load->view($page);
        $this->load->view('fragments/navigation');
        $this->load->view('fragments/footer');

    }  

}

and the controller:

class Contact extends CI_Controller {

    public function __construct() {
        parent::__construct();

        $this->load->helper('form');
        $this->load->library(array('form_validation', 'email', 'page'));
    }

    public function index() {

        $this->form_validation->set_rules('sender_name', 'From', 'required');
        $this->form_validation->set_rules('sender_email', 'Email', 'required|valid_email');
        $this->form_validation->set_rules('subject', 'Subject', 'required');
        $this->form_validation->set_rules('message', 'Message', 'required');

        if ($this->form_validation->run() === FALSE) {

            $this->load->library('page');
            $this->page->render('contact/contact', array('title' => 'Contact Me')); // pass in page title

            /* IT WORKED THIS WAY
            $this->load->view('fragments/header', array('title' => 'Contact Me')); // pass in page title
            $this->load->view('fragments/navigation');
            $this->load->view('contact/contact'); // TODO maintain form state
            $this->load->view('fragments/navigation');
            $this->load->view('fragments/footer');
             * 
             */
        }

//SNIP

contact form view:

<h1>Contact Me</h1>
<?php echo form_open('contact', 'id="contact_form"'); ?>

<label for="sender_name">Name:</label>
<?php echo form_input('sender_name'); ?>
<span class="error"><?php echo form_error('sender_name'); ?></span>

<label for="sender_email">Email:</label>
<?php echo form_input('sender_email'); ?>
<span class="error"><?php echo form_error('sender_email'); ?></span>

<label for="subject">Subject:</label>
<?php echo form_input('subject'); ?>
<span class="error"><?php echo form_error('subject'); ?></span>

<label for="message">Message:</label>
<?php echo form_textarea('message'); ?>
<span class="error"><?php echo form_error('message'); ?></span>

<?php echo form_submit('submit', 'Send'); ?>  

How can I render pages using this helper and still retrieve error messages from form_validation library?

解决方案

Create a view called template.php in your views folder with the following code in it:

<?php

$this->load->view('fragments/header', $this->_ci_cached_vars); // pass $data vars
$this->load->view('fragments/navigation');
$this->load->view($view);
$this->load->view('fragments/navigation');
$this->load->view('fragments/footer');

Then use the below controller code:

public function index() {

    $this->form_validation->set_rules('sender_name', 'From', 'required');
    $this->form_validation->set_rules('sender_email', 'Email', 'required|valid_email');
    $this->form_validation->set_rules('subject', 'Subject', 'required');
    $this->form_validation->set_rules('message', 'Message', 'required');

    if ($this->form_validation->run() === FALSE) {

        $data = array(
            'view' => 'contact/contact', 
            'title' => 'Contact Me');
        $this->load->view('template', $data);
    }

You don't need to create a library to do this as you can just create a template view which will load the appropriate views and the specified view and pass the data along to them.

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11-01 17:19