对于在后台的grid，form等控件，在显示的时候前，一般在_prepareForm（这个比较复杂，后面再介绍！）
在RichardMason_Profile_Block_Adminhtml_Profile_Grid定义的
protected function _prepareColumns()
{
$baseUrl = $this->getUrl();
$this->addColumn('content_heading', array(
'header' => Mage::helper('profile')->getText(Mage::registry('profile_category_id'),'content_heading'),
'align' => 'left',
'index' => 'content_heading'
));
/*
if(Mage::registry('profile_category_id') != RichardMason_Profile_Model_Profile::CATEGORY_RELEASES) {
$this->addColumn('content', array(
'header' => Mage::helper('profile')->getText(Mage::registry('profile_category_id'),'content'),
'align' => 'left',
'index' => 'content'
));
}
*/
if (!Mage::app()->isSingleStoreMode()) {
$this->addColumn('store_id', array(
'header' => Mage::helper('profile')->__('Store View'),
'index' => 'store_id',
'type' => 'store',
'store_all' => true,
'store_view' => true,
'sortable' => false,
'filter_condition_callback'
=> array($this, '_filterStoreCondition'),
));
}
$this->addColumn('is_active', array(
'header' => Mage::helper('profile')->__('Status'),
'index' => 'is_active',
'type' => 'options',
'options' => array(
0 => Mage::helper('profile')->__('Disabled'),
1 => Mage::helper('profile')->__('Enabled')
),
));
$this->addColumn('creation_time', array(
'header' => Mage::helper('profile')->__('Date Created'),
'index' => 'creation_time',
'type' => 'datetime',
));
$this->addColumn('update_time', array(
'header' => Mage::helper('profile')->__('Last Modified'),
'index' => 'update_time',
'type' => 'datetime',
));
return parent::_prepareColumns();
}
$this->addColumns('store_id',array())
在这个函数里面的这个方法为Mage_Adminhtml_Block_Widget_Grid的方法，这里覆盖
目的是为了设置
访问url
profile/adminhtml_profile/news/key/fdsfsdfsadfds
grid的流程显示：
前提，各种资源，model，config.xml都配置好，
1.config.xml配置。
<adminhtml>
<menu>
<cms>
<children>
<news module="profile">
<title>News</title>
<sort_order>60</sort_order>
<action>profile/adminhtml_profile/news</action>
</news>
</children>
2 controller----newsaction方法的填写
在RichardMason_Profile_Adminhtml_ProfileController写一个函数newsAction（）
public function newsAction(){
Mage::register('profile_category_id', RichardMason_Profile_Model_Profile::CATEGORY_NEWS);
$this->_initAction()
->renderLayout();
}
protected function _initAction() {
$this->loadLayout()
->_setActiveMenu('profile/items')
->_addBreadcrumb(Mage::helper('adminhtml')->__('Profiles Manager'), Mage::helper('adminhtml')->__('Profile Manager'));
return $this;
}
3.layouthandle
到profile.xml中写一个layouthandle：
<profile_adminhtml_profile_news>
<reference name="content">
<block type="profile/adminhtml_profile" name="profile" />
</reference>
</profile_adminhtml_profile_news>
4.Block/Adminhtml/Profile.php
RichardMason_Profile_Block_Adminhtml_Profile extends Mage_Adminhtml_Block_Widget_Grid_Container
public function __construct()
{
$this->_controller = 'adminhtml_profile';
$this->_blockGroup = 'profile';
$this->_headerText = Mage::helper('profile')->getText(Mage::registry('profile_category_id'), '_headerText');
parent::__construct();
parent::_addButton('add', array(
'label' => Mage::helper('profile')->getText(Mage::registry('profile_category_id'), 'New'),
'onclick' => 'setLocation(/''.$this->getUrl('*/*/edit', array('category_id' => Mage::registry('profile_category_id'))).'/')',
'class' => 'add',
));
}
5.
因为在该函数构造的时候需要用到grid，系统的默认路径为adminhtml/profile/grid.php(prifile.php的地址：adminhtml)
class RichardMason_Profile_Block_Adminhtml_Profile_Grid extends Mage_Adminhtml_Block_Widget_Grid
{
//1
public function __construct()
{
parent::__construct();
$this->setId('profileBlockGrid');
$this->setDefaultSort('profile_id');
$this->setDefaultDir('ASC');
}
//2
protected function _prepareCollection()
{
$collection = Mage::getModel('profile/profile')->getCollection();
$collection->addFieldToFilter('category_id', Mage::registry('profile_category_id'));
/* @var $collection Mage_Cms_Model_Mysql4_Block_Collection */
$this->setCollection($collection);
return parent::_prepareCollection();
}
//3
protected function _prepareColumns()
{
$baseUrl = $this->getUrl();
$this->addColumn('content_heading', array(
'header' => Mage::helper('profile')->getText(Mage::registry('profile_category_id'),'content_heading'),
'align' => 'left',
'index' => 'content_heading'
));
/*
if(Mage::registry('profile_category_id') != RichardMason_Profile_Model_Profile::CATEGORY_RELEASES) {
$this->addColumn('content', array(
'header' => Mage::helper('profile')->getText(Mage::registry('profile_category_id'),'content'),
'align' => 'left',
'index' => 'content'
));
}
*/
if (!Mage::app()->isSingleStoreMode()) {
$this->addColumn('store_id', array(
'header' => Mage::helper('profile')->__('Store View'),
'index' => 'store_id',
'type' => 'store',
'store_all' => true,
'store_view' => true,
'sortable' => false,
'filter_condition_callback'
=> array($this, '_filterStoreCondition'),
));
}
$this->addColumn('is_active', array(
'header' => Mage::helper('profile')->__('Status'),
'index' => 'is_active',
'type' => 'options',
'options' => array(
0 => Mage::helper('profile')->__('Disabled'),
1 => Mage::helper('profile')->__('Enabled')
),
));
$this->addColumn('creation_time', array(
'header' => Mage::helper('profile')->__('Date Created'),
'index' => 'creation_time',
'type' => 'datetime',
));
$this->addColumn('update_time', array(
'header' => Mage::helper('profile')->__('Last Modified'),
'index' => 'update_time',
'type' => 'datetime',
));
return parent::_prepareColumns();
}
//4
protected function _afterLoadCollection()
{
$this->getCollection()->walk('afterLoad');
parent::_afterLoadCollection();
}
//5
protected function _filterStoreCondition($collection, $column)
{
if (!$value = $column->getFilter()->getValue()) {
return;
}
$this->getCollection()->addStoreFilter($value);
}
/**
* Row click url
*
* @return string
*/
//6
public function getRowUrl($row)
{
return $this->getUrl('*/*/edit', array('profile_id' => $row->getId(), 'category_id' => Mage::registry('profile_category_id') ));
}
}
以上函数的讲解：
6.1
public function __construct()
{
parent::__construct(); //上层构造函数调用。
$this->setId('profileBlockGrid'); //Set object id field value
$this->setDefaultSort('profile_id'); //以那个字段来排序
$this->setDefaultDir('ASC'); //升序还是降序。
}
6.2
protected function _prepareCollection()
{
$collection = Mage::getModel('profile/profile')->getCollection();
$collection->addFieldToFilter('category_id', Mage::registry('profile_category_id'));
/* @var $collection Mage_Cms_Model_Mysql4_Block_Collection */
$this->setCollection($collection);
return parent::_prepareCollection();
}
得到过滤条件后的collection，然后将_data[collection],赋值。
6.3
//3
protected function _prepareColumns()
{
$baseUrl = $this->getUrl();
$this->addColumn('content_heading', array(
'header' => Mage::helper('profile')->getText(Mage::registry('profile_category_id'),'content_heading'),
'align' => 'left',
'index' => 'content_heading'
));
/*
if(Mage::registry('profile_category_id') != RichardMason_Profile_Model_Profile::CATEGORY_RELEASES) {
$this->addColumn('content', array(
'header' => Mage::helper('profile')->getText(Mage::registry('profile_category_id'),'content'),
'align' => 'left',
'index' => 'content'
));
}
*/
if (!Mage::app()->isSingleStoreMode()) {
$this->addColumn('store_id', array(
'header' => Mage::helper('profile')->__('Store View'),
'index' => 'store_id',
'type' => 'store',
'store_all' => true,
'store_view' => true,
'sortable' => false,
'filter_condition_callback'
=> array($this, '_filterStoreCondition'),
));
}
$this->addColumn('is_active', array(
'header' => Mage::helper('profile')->__('Status'),
'index' => 'is_active',
'type' => 'options',
'options' => array(
0 => Mage::helper('profile')->__('Disabled'),
1 => Mage::helper('profile')->__('Enabled')
),
));
$this->addColumn('creation_time', array(
'header' => Mage::helper('profile')->__('Date Created'),
'index' => 'creation_time',
'type' => 'datetime',
));
$this->addColumn('update_time', array(
'header' => Mage::helper('profile')->__('Last Modified'),
'index' => 'update_time',
'type' => 'datetime',
));
return parent::_prepareColumns();
}
_prepareColumns()
主要应用addColumns方法：增加grid的列!
$this->addColumns("此处为在数据库中的字段名称".array())
array（
header-----在页面显示的列名
index------数据库中的字段名称
type ------在前台显示使用的小控件类型，如options（select下拉条），datetime（会显示时间控件）
store_all--是否显示所有商店。
sortable---是否可以排序，也就是在页面的字段名称处点击，然后以此字段排序的功能是否开启，flase/true.
type--------store类型，应该是根据值去对应相应的key，得到相应的value吧。
filter_condition_callback---array($this,'_filterStoreCondition')
是store_id的，对于这个，还是很模糊，先这样吧。遇到store，直接把这个赋值过去就可以了。
6.4
protected function _afterLoadCollection()
{
$this->getCollection()->walk('afterLoad');
parent::_afterLoadCollection();
}
还是不是很懂。看来想做grid，还是得摸索着做，以后再回来看奥秘。
6.5
//5
protected function _filterStoreCondition($collection, $column)
{
if (!$value = $column->getFilter()->getValue()) {
return;
}
$this->getCollection()->addStoreFilter($value);
}
为addcolumns store_id处的filter_condition_callback---array($this,'_filterStoreCondition')
对应的方法。
//6
public function getRowUrl($row)
{
return $this->getUrl('*/*/edit', array('profile_id' => $row->getId(), 'category_id' => Mage::registry('profile_category_id') ));
}
}
得到URL，也就是grid中每行可以通过点击该行进入编辑的URL获得，就是通过这个函数得到的！
到此，吧一个grid显示出来编写结束！主要难点为block/Profile.php文件和block/profile/Grid.php文件的编写。
附加：
parent::_addButton('add', array(
'label' => Mage::helper('profile')->getText(Mage::registry('profile_category_id'), 'New'),
'onclick' => 'setLocation(/''.$this->getUrl('*/*/edit', array('category_id' => Mage::registry('profile_category_id'))).'/')',
'class' => 'add',
));
add按钮，编写的时候模仿就可以，一切可以山寨！懂原理就可以！！
