Adminhtml - white grid - Magento 1.9

Question

I'm creating some menu admin and i have a container grid with buttons, but not a grid, logically this means that I don't load my block but I dont find the issue, i tried to get the class of a block and i can get it string(28) "Sd_Menu_Block_Adminhtml_Menu":

$block = $this->getLayout()->createBlock('sd_menu/adminhtml_menu');
var_dump(get_class($block)); //get class of block

enter image description here

Here is a full code, and if you see somethings wrong somewhere, the corrections are welcome:

app/code/local/Sd/Menu/Block/Adminhtml.Menu.php

<?php
class Sd_Menu_Block_Adminhtml_Menu extends Mage_Adminhtml_Block_Widget_Grid_Container{
 public function __construct()
 {
 $this->_blockGroup = 'sd_menu';
 $this->_controller = 'adminhtml_menu';
 $this->_headerText = $this->__('Gérer le Menu');
 $this->_addButtonLabel = $this->__('Ajouter');
 parent::__construct();
 }
}

app/code/local/Sd/Menu/Block/Adminhtml/Menu/Grid.php

<?php
class Sd_Menu_Block_Adminhtml_Menu_Grid extends Mage_Adminhtml_Block_Widget_Grid
{
 public function __construct()
 {
 parent::__construct();
 $this->setId('menuGrid');
 $this->setDefaultSort('id');
 $this->setDefaultDir('ASC');
 $this->setSaveParametersInSession(true);
 }
 protected function _prepareCollection()
 {
 $collection = Mage::getModel('menu/menu')->getCollection();
 $this->setCollection($collection);
 return parent::_prepareCollection();
 }
 protected function _prepareColumns()
 {
 $this->addColumn('entity_id', array(
 'header' => $this->__('Id'),
 'align' =>'right',
 'width' => '10px',
 'index' => 'id',
 ));
 $this->addColumn('name', array(
 'header' => $this->__('Nom'),
 'align' =>'left',
 'index' => 'name',
 'width' => '50px',
 ));
 $this->addColumn('address', array(
 'header' => $this->__('Adresse'),
 'width' => '150px',
 'index' => 'content',
 ));
 return parent::_prepareColumns();
 }
}

app/code/local/Sd/Menu/controllers/Adminhtml/MenuController.php

<?php
class Sd_Menu_Adminhtml_MenuController extends Mage_Adminhtml_Controller_Action{
 public function indexAction()
 {
 $this->loadLayout()
 ->_setActiveMenu('Menu 1')
 ->_title($this->__('Submenu1')); // for title
 $this->renderLayout();
 }
 public function listAction()
 {
 $this->loadLayout()
 ->_setActiveMenu('Menu 1')
 ->_title($this->__('Submenu2')); //for title
 $this->renderLayout();
 }
}

app/code/local/Sd/Menu/Model/Menu.php

<?php
class Sd_Menu_Model_Menu extends Mage_Core_Model_Abstract{
 /**
 * Le constructeur
 */
 public function _construct() {
 parent::_construct();
 $this->_init('menu/menu');
 }
}

app/code/local/Sd/Menu/Model/Resource/Menu.php

<?php
class Sd_Menu_Model_Resource_Menu extends Mage_Core_Model_Resource_Db_Abstract
{
 /**
 * Initialize resource model
 *
 */
 protected function _construct()
 {
 $this->_init('menu/menu', 'entity_id');
 }
}

app/code/local/Sd/Menu/Model/Resource/Menu/Collection.php

<?php
class Sd_Menu_Model_Resource_Menu_Collection extends Mage_Core_Model_Resource_Db_Collection_Abstract
{
 protected function _construct()
 {
 parent::_construct();
 $this->_init('menu/menu');
 }
}

app/code/local/Sd/Menu/etc/config.xml

<?xml version="1.0"?>
<config>
 <modules>
 <Sd_Menu>
 <version>0.1.0</version>
 </Sd_Menu>
 </modules>
 <global>
 <helpers>
 <sd_menu>
 <class>Sd_Menu_Helper</class>
 </sd_menu>
 </helpers>
 <blocks>
 <sd_menu>
 <class>Sd_Menu_Block</class>
 </sd_menu>
 </blocks>
 <models>
 <menu>
 <class>Sd_Menu_Model</class>
 <resourceModel>menu_resource</resourceModel> //the corercted add
 </menu>
 <menu_resource>
 <class>Sd_Menu_Model_Resource</class>
 <entities>
 <menu>
 <table>wlc_sd_menu</table>
 </menu>
 </entities>
 </menu_resource>
 </models>
 <resources>
 <menu_setup>
 <setup>
 <module>Sd_Menu</module>
 </setup>
 <connection>
 <use>core_setup</use>
 </connection>
 </menu_setup>
 </resources>
 </global>
 <admin>
 <routers>
 <adminhtml>
 <args>
 <modules>
 <sd_menu before="Mage_Adminhtml">Sd_Menu_Adminhtml</sd_menu>
 </modules>
 </args>
 </adminhtml>
 </routers>
 </admin>
 <adminhtml>
 <layout>
 <updates>
 <sd_menu>
 <file>sd_menu.xml</file>
 </sd_menu>
 </updates>
 </layout>
 </adminhtml>
</config>

app/code/local/Sd/Menu/etc/adminhtml.xml

<?xml version="1.0" encoding="UTF-8"?>
<config>
 <menu>
 <menu1 module="sd_menu" translate="title">
 <title>Menu 1</title>
 <sort_order>100</sort_order>
 <children>
 <item1 module="sd_menu" translate="title">
 <title>Submenu 1</title>
 <sort_order>1</sort_order>
 <action>adminhtml/menu/index</action>
 </item1>
 <item2 module="sd_menu" translate="title">
 <title>Submenu 2</title>
 <sort_order>2</sort_order>
 <action>adminhtml/menu/list</action>
 </item2>
 </children>
 </menu1>
 </menu>
 <acl>
 <resources>
 <admin>
 <children>
 <menu1 translate="title" module="sd_menu">
 <title>My Controller</title>
 <sort_order>-100</sort_order>
 <children>
 <item1 translate="title">
 <title>Index Action</title>
 <sort_order>1</sort_order>
 </item1>
 <item2 translate="title">
 <title>List Action</title>
 <sort_order>2</sort_order>
 </item2>
 </children>
 </menu1>
 </children>
 </admin>
 </resources>
 </acl>
</config>

app/design/adminhtml/default/default/layout/sd_menu.xml

<?xml version="1.0" encoding="UTF-8"?>
<layout version="0.1.0">
 <adminhtml_menu_index>
 <reference name="content">
 <block type="sd_menu/adminhtml_menu" name="menu"/>
 </reference>
 </adminhtml_menu_index>
</layout>

app/code/local/Sd/Menu/Helper/Data.php

<?php
class Sd_Menu_Helper_Data extends Mage_Core_Helper_Abstract
{
}

app/etc/modules/Sd_Menu.xml

<?xml version="1.0" encoding="UTF-8"?>
<config>
 <modules>
 <Sd_Menu>
 <active>true</active>
 <codePool>local</codePool>
 </Sd_Menu>
 </modules>
</config>

app/code/local/Sd/Menu/sql/sd_menu_setup/mysql4-install-0.1.0

<?php
$installer = $this;
$installer->startSetup();
Mage::log('START SCRIPT install sd_menu 0.1.0');
try {
 $this->run("
 CREATE TABLE IF NOT EXISTS `wlc_sd_menu` (
 `entity_id` int(11) NOT NULL AUTO_INCREMENT,
 `name` text NOT NULL,
 `photo` varchar(255) DEFAULT NULL,
 `position` int(11) DEFAULT NULL,
 `address` varchar(255) NOT NULL,
 `email` varchar(255) NOT NULL,
 `facebook` varchar(255) DEFAULT NULL,
 `twitter` varchar(255) DEFAULT NULL,
 `linkedin` varchar(255) DEFAULT NULL,
 `instagram` varchar(255) DEFAULT NULL,
 `google_plus` varchar(255) DEFAULT NULL,
 `status` int(11) NOT NULL DEFAULT '1',
 PRIMARY KEY (`entity_id`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
 ");
 Mage::log("Script OK!");
} catch (Exception $e) { Mage::log('Script KO: '.$e); }
Mage::log('END SCRIPT install sd_menu 0.1.0');
$installer->endSetup();

• Minesh Patel: app/code/local/Sd/Menu/Block/Adminhtml.Menu.php OR app/code/local/Sd/Menu/Block/Adminhtml/Menu.php ?
• PЯINCƎ: it's app/code/local/Sd/Menu/Block/Adminhtml/Menu.php

Answer 1

Here are some things you are missing in your module:
in config.xml under the models->menu tag you need this <resourceModel>menu_resource</resourceModel>.

You need the resource model class /Sd/Menu/Model/Resource/Menu.php

<?php
class Sd_Menu_Model_Resource_Menu extends Mage_Core_Model_Resource_Db_Abstract
{
 /**
 * Initialize resource model
 *
 */
 protected function _construct()
 {
 $this->_init('menu/menu', 'entity_id');
 }
}

and the resource collection model Sd/Menu/Model/Resource/Menu/Collection.php

<?php
class Sd_Menu_Model_Resource_Menu_Collection extends Mage_Core_Model_Resource_Db_Collection_Abstract
{
 protected function _construct()
 {
 parent::_construct();
 $this->_init('menu/menu');
 }
}

Also there is no install script that should create your table Sd/Menu/sql/menu_setup/install-0.1.0.php

<?php
/* @var $installer Mage_Core_Model_Resource_Setup */
$installer = $this;
$installer->startSetup();
$table = $installer->getConnection()
 ->newTable($installer->getTable('menu/menu'))
 ->addColumn('entity_id', Varien_Db_Ddl_Table::TYPE_SMALLINT, null, array(
 'identity' => true,
 'nullable' => false,
 'primary' => true,
 ), 'Menu ID')
 ->addColumn('name', Varien_Db_Ddl_Table::TYPE_TEXT, 255, array(
 'nullable' => false,
 ), 'Menu name')
 ->addColumn('content', Varien_Db_Ddl_Table::TYPE_TEXT, '2M', array(
 ), 'Menu Content')
 ->addColumn('creation_time', Varien_Db_Ddl_Table::TYPE_TIMESTAMP, null, array(
 ), 'Menu Creation Time')
 ->addColumn('update_time', Varien_Db_Ddl_Table::TYPE_TIMESTAMP, null, array(
 ), 'Menu Modification Time')
 ->setComment('Menu Table');
$installer->getConnection()->createTable($table);

You may need to add more columns to the table. I just guessed what you have in it.

• PЯINCƎ: Thank you for your answer @Marius, I just added what you had written to me i cleared caches and i have the same problem, about the script install I already had it and I forgot to put it. Look at my edit please
• Marius: I just recreated your module with the additions I mentioned and I got proper grid.
• PЯINCƎ: It's incredible, I have exactly the same module, at logs level I have a warning ERR (3): Warning: simplexml_load_string(): Entity: line 32: parser error : Start tag expected, '<' not found but I don't think that it comes from this module, even by disabling this module it appears, I just haven't had time to fixe it. I also note that when I click on submenu 2, I lose a container grid (the buttons)
• PЯINCƎ: I was mistaken about the positioning of the resource like the answer of John Thank you @Marius

Answer 2

To addition to Marius's answer, now there is only one mistake in your code. You have placed resourceModel tag in your config.xml in wrong location

<models>
 <menu>
 <class>Sd_Menu_Model</class>
 <resourceModel>menu_resource</resourceModel> <!-- ADD RESOURCE MODEL HERE -->
 </menu>
 <!-- <resourceModel>menu_resource</resourceModel> REMOVE THIS -->
 <menu_resource>
 <class>Sd_Menu_Model_Resource</class>
 <entities>
 <menu>
 <table>wlc_sd_menu</table>
 </menu>
 </entities>
 </menu_resource>
</models>

• PЯINCƎ: Thank you for your time, do you know why when i click on submenu2 i lose a container grid(buttons)

Answer 3

Below is the corrected code for the entire module (for menu1). I have tested and verified. (In front of each file I have mentioned whether it has been newly added or modified or not)

app/code/local/Sd/Menu/Block/Adminhtml/Menu/Grid.php (Modified)

<?php
class Sd_Menu_Block_Adminhtml_Menu_Grid extends Mage_Adminhtml_Block_Widget_Grid
{
 public function __construct()
 {
 parent::__construct();
 $this->setId('menuGrid');
 $this->setDefaultSort('entity_id');
 $this->setDefaultDir('DESC');
 $this->setSaveParametersInSession(true);
 }
 protected function _prepareCollection()
 {
 $collection = Mage::getModel('sd_menu/menu')->getCollection();
 $this->setCollection($collection);
 return parent::_prepareCollection();
 }
 protected function _prepareColumns()
 {
 $this->addColumn('entity_id', array(
 'header' => $this->__('Id'),
 'align' =>'right',
 'width' => '10px',
 'index' => 'entity_id',
 ));
 $this->addColumn('name', array(
 'header' => $this->__('Name'),
 'align' =>'left',
 'index' => 'name',
 'width' => '50px',
 ));
 $this->addColumn('address', array(
 'header' => $this->__('Address'),
 'width' => '150px',
 'index' => 'content',
 ));
 return parent::_prepareColumns();
 }
}

app/code/local/Sd/Menu/Block/Adminhtml/Menu.php (Not modified)

<?php
class Sd_Menu_Block_Adminhtml_Menu extends Mage_Adminhtml_Block_Widget_Grid_Container{
 public function __construct()
 {
 $this->_blockGroup = 'sd_menu';
 $this->_controller = 'adminhtml_menu';
 $this->_headerText = $this->__('Gérer le Menu');
 $this->_addButtonLabel = $this->__('Ajouter');
 parent::__construct();
 }
}

app/code/local/Sd/Menu/controllers/Adminhtml/MenuController.php (Not modified)

<?php
class Sd_Menu_Adminhtml_MenuController extends Mage_Adminhtml_Controller_Action{
 public function indexAction()
 {
 $this->loadLayout()
 ->_setActiveMenu('Menu 1')
 ->_title($this->__('Submenu1')); // for title
 $this->renderLayout();
 }
 public function listAction()
 {
 $this->loadLayout()
 ->_setActiveMenu('Menu 1')
 ->_title($this->__('Submenu2')); //for title
 $this->renderLayout();
 }
}

app/code/local/Sd/Menu/etc/adminhtml.xml (Not modified)

<?xml version="1.0" encoding="UTF-8"?>
<config>
 <menu>
 <menu1 module="sd_menu" translate="title">
 <title>Menu 1</title>
 <sort_order>100</sort_order>
 <children>
 <item1 module="sd_menu" translate="title">
 <title>Submenu 1</title>
 <sort_order>1</sort_order>
 <action>adminhtml/menu/index</action>
 </item1>
 <item2 module="sd_menu" translate="title">
 <title>Submenu 2</title>
 <sort_order>2</sort_order>
 <action>adminhtml/menu/list</action>
 </item2>
 </children>
 </menu1>
 </menu>
 <acl>
 <resources>
 <admin>
 <children>
 <menu1 translate="title" module="sd_menu">
 <title>My Controller</title>
 <sort_order>-100</sort_order>
 <children>
 <item1 translate="title">
 <title>Index Action</title>
 <sort_order>1</sort_order>
 </item1>
 <item2 translate="title">
 <title>List Action</title>
 <sort_order>2</sort_order>
 </item2>
 </children>
 </menu1>
 </children>
 </admin>
 </resources>
 </acl>
</config>

app/code/local/Sd/Menu/etc/config.xml (Modified)

<?xml version="1.0"?>
<config>
 <modules>
 <Sd_Menu>
 <version>0.1.0</version>
 </Sd_Menu>
 </modules>
 <global>
 <helpers>
 <sd_menu>
 <class>Sd_Menu_Helper</class>
 </sd_menu>
 </helpers>
 <blocks>
 <sd_menu>
 <class>Sd_Menu_Block</class>
 </sd_menu>
 </blocks>
 <models>
 <sd_menu>
 <class>Sd_Menu_Model</class>
 <resourceModel>sd_menu_resource</resourceModel>
 </sd_menu>
 <sd_menu_resource>
 <class>Sd_Menu_Model_Resource</class>
 <entities>
 <menu>
 <table>wlc_sd_menu</table>
 </menu>
 </entities>
 </sd_menu_resource>
 </models>
 <resources>
 <sd_menu_setup>
 <setup>
 <module>Sd_Menu</module>
 </setup>
 </sd_menu_setup>
 </resources>
 </global>
 <admin>
 <routers>
 <adminhtml>
 <args>
 <modules>
 <sd_menu before="Mage_Adminhtml">Sd_Menu_Adminhtml</sd_menu>
 </modules>
 </args>
 </adminhtml>
 </routers>
 </admin>
 <adminhtml>
 <layout>
 <updates>
 <sd_menu>
 <file>sd_menu.xml</file>
 </sd_menu>
 </updates>
 </layout>
 </adminhtml>
</config>

app/code/local/Sd/Menu/Helper/Data.php (Not modified)

<?php
class Sd_Menu_Helper_Data extends Mage_Core_Helper_Abstract

{

}

app/code/local/Sd/Menu/Model/Resource/Menu/Collection.php (Newly Added)

<?php
class Sd_Menu_Model_Resource_Menu_Collection extends Mage_Core_Model_Resource_Db_Collection_Abstract
{
 public function _construct()
 {
 $this->_init('sd_menu/menu');
 }
}

app/code/local/Sd/Menu/Model/Resource/Menu.php (Newly Added)

<?php
class Sd_Menu_Model_Resource_Menu extends Mage_Core_Model_Resource_Db_Abstract
{
 protected function _construct()
 {
 $this->_init('sd_menu/menu', 'entity_id');
 }
}

app/code/local/Sd/Menu/Model/Menu.php (Modified)

<?php
class Sd_Menu_Model_Menu extends Mage_Core_Model_Abstract
{
 protected function _construct()
 {
 $this->_init('sd_menu/menu');
 }
}

app/code/local/Sd/Menu/sql/sd_menu_setup/install-0.1.0.php (Newly Added)

<?php
$installer = $this;
$installer->startSetup();
$table = $installer->getConnection()
 ->newTable($installer->getTable('sd_menu/menu'))
 ->addColumn('entity_id', Varien_Db_Ddl_Table::TYPE_INTEGER, null, array(
 'identity' => true,
 'unsigned' => true,
 'nullable' => false,
 'primary' => true,
 ), 'Id')
 ->addColumn('name', Varien_Db_Ddl_Table::TYPE_VARCHAR, null, array(
 'nullable' => false,
 ), 'Name')
 ->addColumn('address', Varien_Db_Ddl_Table::TYPE_TEXT, null, array(
 'nullable' => false,
 ), 'Address');
$installer->getConnection()->createTable($table);
$installer->endSetup();

app/etc/modules/Sd_Menu.xml (Not modified)

<?xml version="1.0" encoding="UTF-8"?>
<config>
 <modules>
 <Sd_Menu>
 <active>true</active>
 <codePool>local</codePool>
 </Sd_Menu>
 </modules>
</config>

app/design/adminhtml/default/default/layout/sd_menu.xml (Not modified)

<?xml version="1.0" encoding="UTF-8"?>
<layout version="0.1.0">
 <adminhtml_menu_index>
 <reference name="content">
 <block type="sd_menu/adminhtml_menu" name="menu"/>
 </reference>
 </adminhtml_menu_index>
</layout>

• PЯINCƎ: Thank you for your time, do you know why when i click on submenu2 i lose a container grid(buttons)
• Sukeshini: You have to create separate container classes and relevant grid class as you did for the submenu1