Joomla PHP:复选框不会取消选中 [英] Joomla PHP: Checkbox won't uncheck

问题描述

组成一个简单的组件.如果我在选中复选框的情况下保存了新记录，则可以保存.如果我返回并取消选中先前选中的项目，它将恢复为选中状态.我以为它与一个隐藏的字段有关，可以手动将其中一个放在其中，但也没有解决问题，因此将其取出.

Making a simple component. If I save a new record with the box checked, it saves fine. If I go back and uncheck a previously checked item it reverts back to checked. I thought it had something to do with a hidden field, played with putting one of those in manually but that didn't fix it either so took it out.

我在这里: xml片段:

Here's where I'm at: An xml snippet:

<fieldset name="checks">
  <field name="checkbox1"
    type="checkbox"
    label="First Checkbox"
    value="1"
    filter="intval"         
  /> 

   <field name="checkbox2"
    type="checkbox"
    label="Second Checkbox"
    value="1"
    filter="intval"         
  /> 

 ...

</fieldset>

edit.php文件:

The edit.php file:

<div class="width-45 fltlft">
  <fieldset class="adminform">
    <legend>Checkboxes</legend>
    <ul class="adminformlist">
      <?php foreach ($this->form->getFieldset('checks') as $field): ?>
        <li>
          <?php echo $field->label; ?>
          <?php echo $field->input; ?>
        </li>
      <?php endforeach ?>
    </ul>
  </fieldset>
</div>

也将其添加到form.token的末尾:

Also added this towards the end before the form.token:

<input type="hidden" name="task" id="task" value="completion.edit" />

我尝试删除xml中的value ="1"，但是却遇到了相反的问题，就是根本无法保存支票.

I tried deleting the value="1" in the xml but then I had the opposite problem where the check wouldn't save at all.

有什么想法吗?

谢谢！

============================

=============================

型号:

<?php
defined( '_JEXEC' ) or die;

jimport('joomla.application.component.modeladmin');

class AssessModelCompletion extends JModelAdmin
{
//tells it what kind of record and the prefix

    public function getTable($type = 'Completion', $prefix = 'AssessTable', $config = array())
    {
        return JTable::getInstance($type, $prefix, $config);
    }

    //Load the data into the edit form
    protected function loadFormData()
    {
        $data = JFactory::getApplication()->getUserState('com_assess.edit.completion.data', array()); //first try to get the data from the session, not db

        if (empty($data)) {
            $data = $this->getItem(); //this gets the data
        }

        return $data;

    }

    //Stores data in a session in case a field is missed
    public function getForm($data = array(), $loadData = true)
    {
        $form = $this->loadForm('com_assess.completion', 'completion', array('control' => 'jform', 'load_data' => $loadData));

        return $form;
    }
}

和表:

<?php 
defined ( '_JEXEC' ) or die;

class AssessTableCompletion extends JTable
{
    public function __construct(&$db)
    {
        parent::__construct('#__tablename_completions', 'completion_id', $db);
    }
}

====================================

======================================

参考: https://stackoverflow.com/questions/6964333/joomla-1-6-admin-form-processing-grouped复选框形式

教程代码不再起作用在Joomla 2.5中

http://docs.joomla. org/Developing_a_Model-View-Controller_％28MVC％29_Component_for_Joomla！1.7 _-_ Part_09#Adding_a_toolbar

推荐答案

所以我有很多字段，并且想在我的edit.php字段中简单地遍历它们以保持其清洁.尽管提供的所有答案都是正确的，但它们并不容易实现-很快就变得非常混乱，无法正常工作或无法找到一种更清洁的解决方法.我对此进行了一段时间的咀嚼，然后今天发现基本上是字段覆盖.

So I had a lot of fields and wanted to simply loop through them in my edit.php field to keep it clean. While all the answers offered were right they weren't easy to implement - got really messy really quickly, had trouble getting it to work, or couldn't figure out a cleaner way around it. I chewed on this for awhile and then today came across what is basically a field override.

键:

标准表单字段类型位于 joomla/libraries/joomla/form/fields/.您不应该存储自定义 字段，也不必在自己的代码中使用此路径， 但是标准类型通常是很好的例子.

The standard form field types are located in joomla/libraries/joomla/form/fields/. You should not store custom fields there, nor should you have to use this path in your own code, but the standard types are usually good examples.

属于您的组件的自定义字段类型通常是 位于管理员/组件//模型/字段中.您可以在自己的路径中指定此路径或其他路径 代码

The custom field types that belong to your component are usually located in administrator/components//models/fields. You can specify this or another path in your code

因此，我将checkbox.php复制到了模型/字段.然后，在文件末尾，我在复选框标记之前添加了一个空字段:

So, I copied checkbox.php to models/fields. Then, towards the end of the file I added the empty field before the checkbox tag:

<input type="hidden" name="'.$this->name.'" id="'.$this->id.'" value="0" /><input type="checkbox" .....

现在，每当我需要一个复选框时，也会写入空白字段.可能不是最有效的解决方案，但实施起来很简单，有望对其他人有所帮助.

Now, whenever I need a checkbox the empty field is also written. May not be the most efficient solution but simple to implement and can hopefully help someone else.

请注意，每次Joomla更新时，您可能都需要比较核心版本，以防发生更改.

As a note, with every Joomla update you would probably need to compare the versions in the core in case there was a change.

这篇关于Joomla PHP:复选框不会取消选中的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！