$connection = Mage::getSingleton('core/resource')->getConnection('default_setup');

Then we will use this connection to instanciate Zend_Db_Select object and write query like

$select = new Zend_Db_Select($connection);
$table = 'catalog_product_index_price';
$select->from($table, array('entity_id'))
	->where('entity_id = ?', $entityId);

// Getting result

$result = $select->query();
$rowCount = $result->rowCount();

if ($rowCount) {
	foreach ($result->fetchAll() as $data) {
		return $data['entity_id'];
	}
}

The above one is for select but what about inserting data? It is simple as well. All you have to do is create an associative array of data to be inserted and use connection to add data. For example

$connection = Mage::getSingleton('core/resource')->getConnection('default_setup');
$table = 'catalog_product_index_price';

$insertData = array();
$insertData ['price'] = $productPrice;
$insertData ['final_price'] = $productPrice;
$insertData ['min_price'] = $productPrice;
$insertData ['max_price'] = $productPrice;
$insertData ['tier_price'] = $productPrice;

$connection->insert($table, $insertData);

I think this should be a good enough code for using custom query in Magento. About Zend_Db_Select please visit http://framework.zend.com/manual/en/zend.db.select.html.

[UPDATE]

If you want to update the data with custom query and have a condition then you can send the conditions as array as third params to update function. For example.

$connection = Mage::getSingleton('core/resource')->getConnection('default_setup');
$table = 'catalog_product_index_price';

$updateCond = array(); // Update condition array container.
$insertData = array();
$insertData ['price'] = $productPrice;
$insertData ['final_price'] = $productPrice;
$insertData ['min_price'] = $productPrice;
$insertData ['max_price'] = $productPrice;
$insertData ['tier_price'] = $productPrice;

$updateCond [] = 'store_id = 0';
$updateCond [] = 'entity_id = 3';

$connection->insert($table, $insertData, $updateCond);

Happy Brogramming!!

 <core>
 <rewrite>
 <locale>Namespace_Module_Model_Locale</locale>
 </rewrite>
 </core>
 

Then in Namespace_Module_Model_Locale class you can add the following code.

 class Namespace_Module_Model_Locale extends Mage_Core_Model_Locale{
 /*
 * Code: subesh.com.np
 */

public function currency($currency)
 {
 Varien_Profiler::start('locale/currency');
 if (!isset(self::$_currencyCache[$this->getLocaleCode()][$currency])) {
 try {
 $currencyObject = new Zend_Currency($currency, $this->getLocale());

// Additionally Added Code
 // The options array's position key has other values as well.

// 	Zend_Currency::STANDARD
 // 	Zend_Currency::RIGHT
 //	Zend_Currency::LEFT

$options = array(
 'position'	=> Zend_Currency::RIGHT
 );

$currencyObject->setFormat($options);

// END Additionally Added Code

} catch (Exception $e) {
 $currencyObject = new Zend_Currency($this->getCurrency(), $this->getLocale());
 $options = array(
 'name'      => $currency,
 'currency'  => $currency,
 'symbol'    => $currency
 );
 $currencyObject->setFormat($options);
 }

self::$_currencyCache[$this->getLocaleCode()][$currency] = $currencyObject;
 }
 Varien_Profiler::stop('locale/currency');
 return self::$_currencyCache[$this->getLocaleCode()][$currency];
 }

}

You can see the comment of the code above for more detail understanding.

P.S: Be informed that you need to change the Class Name you are about to create on the basis of your Namespace and Module name.

I successfully used the same “behavior” of tabbed navigation in “front-end”, was easy at the end (always with Magento, when you get it), but I was struggling at the start. So, like my other posts, to share here’s how I used the same type of tab in Magento’s Front-end.

First thing is add the Tab’s Java-script file. You can either include by layout or in PHTML file. If you want to do from layout then,

<reference name="head">
        	 <action method="addJs"><script>mage/adminhtml/tabs.js</script></action>
</reference>

Next thing is to create Tab’s Menu inside UL & LI. Here’s the structure. (Self Explanatory)

<!-- TAB MENU STRUCTURE -->

<ul id="page_tabs">
	<!-- NORMAL TAB -->
	<li>
		<a id="normaltab" name="normaltab" class="tab-item-link" href="#"> NORMAL TAB </a>
		<!-- NOTE: class has to be tab-item-link-->

		<div id="normaltab_content"> Normal Tab HTML</div>
		<!-- NOTE: See the id of this div content it has id equal to its anchor's (<a>) id + Underscore + content -->
	</li>
	<!-- NORMAL TAB END-->

	<!-- AJAX LOADED TAB -->
	<li>
		<a id="ajaxtab" name="ajaxtab" class="tab-item-link ajax notloaded" href="http://example.com/magento/module/controller/action"> AJAX TAB </a>
		<!-- NOTE 1: class has to be tab-item-link ajax notloaded -->
		<!-- NOTE 2: Since this is Ajax Loaded Tab its Anchor should have href value = SOME URL -->

		<div id="ajaxtab_content"></div>
		<!-- NOTE 1: See the id of this div content it has id equal to its anchor's (<a>) id + Underscore + content -->
		<!-- NOTE 2: Since its innerHTML will be loaded by by Ajax you can set its innerHTML "blank" -->

	</li>
	<!-- AJAX LOADED TAB END -->
</ul>
<!-- TAB MENU STRUCTURE END -->

<!-- TAB CONTENT CONTAINER DIV-->
<div id="tabcontainer"></div>
<!-- TAB CONTENT CONTAINER DIV-->

Now its the time to use the Tabs JS included, like below.

<script>
	// Form Key Required for POST AJAX Method
	var FORM_KEY="<?php echo Mage::getSingleton('core/session')->getFormKey() ?>";

	// Set this to false, Guess used for some other purpose in backend, not really required in frontend.
	var varienGlobalEvents=false;

	// Initiallizing Varien Tabs
	/**
	* @param 1 : UL Menu ID
	* @param 2 : Target Tab Content ID
	* @param 3 : Initially Loading Tab's Id
	* @param 4 : Don't know yet, just use as it is (LOL)
	*/

	frontend_tabsJsTabs = new varienTabs('page_tabs', 'tabcontainer', 'normaltab',[]);

</script>

Done! You must now have a functioning Tab loading by Ajax and Normal, but yes tab would look good if you add CSS to your Tabs. Here is how it works.

1. On load it first copies the tab_content div inside the Target Tab Content ID div.
2. On tabbed menu clicked it checks its class name and if it class name does not have “ajax” it simply shows the its_content div.
3. If the menu clicked has “ajax” then it checks for another class name “notloaded”. So if its ajax and notloaded it then makes an Ajax request and updates the responseText to itsid_content div and then removes the “notloaded” class name for the menu. After that it then displays the itsid_content div, hiding previous ones.
4. If you re-click the “Ajax” typed menu, it will not find “notloaded” class in its menu, then it just shows its_content div.

A good trick, I thought while doing this, using class name to restrict the Ajax call.

Just a Re-Post

Magento eCommerce: How To Reset All Test Order Information and Set Unique Prefix For Orders, Invoices, Shipments, and Credit Memos.

<?php echo $this->getMessagesBlock()->getGroupedHtml() ?>

It did not work. Yes, after adding this block it had worked before. In my case, the probable case might be that I had called the module’s template from CMS page. In other case it should work. So, I looked for work around and the following did the trick.

// Getting Messages from Session
$messages=Mage::getSingleton("customer/session")->getMessages();

// Creating Block Mage_Core_Block_Messages
// Setting Message
// echoing the Message's HTML
echo $this->getLayout()->createBlock("core/messages")->setMessages($messages)->getGroupedHtml();

The Error/Success or Notice messages are set on session. So what I did was take those message/s from the session and create a new block, same as what $this->getMessagesBlock() might have called, and set those message to the created block and echoed its HTML.

Clever? or not?

Rewrite you catalog/product/view controller and add that logic.
Rewrite Block of that page and show error message accordingly.
Any other..?

Yeha, I do have another option as well. The Event-Observer Method. You can observe an event controller_action_predispatch_catalog_product_view and set up an observer where you can write your own logic there and redirect accordingly.

You can observe that event by setting up your config something like this.

<controller_action_predispatch_catalog_product_view>
	<observers>
		<mymodel>
			<type>singleton</type>
			<class>mymodel/controller_observer</class>
			<method>controller_action_predispatch_catalog_product_view</method>
		</mymodel>
	</observers>
</controller_action_predispatch_catalog_product_view>

And on the observer’s controller_action_predispatch_catalog_product_view method, you can check your logic for visibiliy of that product to the logged in user group and redirect if not visible.

Here’s the main point of this post (Did I take a lot of your time ?), in that same method you can directly redirect using the following snippet of code.

Mage::app()->getResponse()->setRedirect(Mage::getUrl("myrouter/mycontroller/noview"));

Adding an error message to the session would be a good idea, for user to understand what is happening. Else you can directly call a template in the redirected controller’s action with appropriate message.

I think this sums up the post for now..and as always hoping it helps somebody and waiting for the response.

Admin URL with Keys and Parameters

The part in “RED” are module controller(router)/action. And the part in “GREEN” is what we call as “Paramerters” and the “BLUE” part is the “Key“. The Key (which is also a URL parameter) in the URL has been added for security reasons and is checked against the session’s values for every action. If store owner does not want to use the key in admin url, then it can be set off from administrator settings.

My point in this post is, if you are a developer and creating a module that has Admin controller and you are simply calling some action of your controller lets say, mymodule/adminhtml_mycontroller/myaction/param1/1/param2/2 the it does not redirect you to your intended page, but will redirect to dashboard, IF key is enabled. You will have to add the key parameter to the URL to go to your page. So here is a simple snippet of code that will help you to build your URL with valid keys.

echo Mage::helper("adminhtml")->getUrl("mymodule/adminhtml_mycontroller/myaction/",array("param1"=>1,"param2"=>2));

The “adminhtml” helper will automatically create url with keys attached to the URL.

Next thing, if you see the key of various pages in admin you will see that those keys are not same, there is a different logic behind creating those key values. The keys generated depends upon the controller and action you are about to execute. Keys can be seperatly generated as follows.

Mage::getSingleton('adminhtml/url')->getSecretKey("adminhtml_mycontroller","myaction");

Hope this helps, and this can be particularly helpful when you are using templates in admin modules and adding buttons to redirect to some other location. At least that was my case!

Below is the code how I created those links using Custom SQL. But I have to tell you that the former methods looks organized, this is just a work around to a situation. You might know what I am trying to say!

$resource 	= Mage :: getSingleton( 'core/resource' );
$read= $resource -> getConnection( 'core_read' );
$write= $resource->getConnection('core_write');
$linkTable=$resource->getTableName('catalog/product_link');

// Creating Upsell Product link

$write->query("INSERT into $linkTable SET
							product_id='".$productId."',
							linked_product_id='".$linkProduct."',
							link_type_id='".Mage_Catalog_Model_Product_Link::LINK_TYPE_UPSELL."'
			");

// Creating Related Product link

$write->query("INSERT into $linkTable SET
							product_id='".$productId."',
							linked_product_id='".$linkProduct."',
							link_type_id='".Mage_Catalog_Model_Product_Link::LINK_TYPE_RELATED."'
			");

// Creating Crosssell Product Link
$write->query("INSERT into $linkTable SET
							product_id='".$productId."',
							linked_product_id='".$linkProduct."',
							link_type_id='".Mage_Catalog_Model_Product_Link::LINK_TYPE_CROSSSELL."'
			");

Happy Coding!

I have not drilled down to the details of collection, untill today when I really need it! Do you think its very late? because I have been into Magento for more than a year now!. Better late than never! So, I got the way of working out my situation. Here is how I created a collection from Magento’s “Magical Class” Varien_Data_Collection. I call this “Magical Class”, because it worked like a Magic to me

$collection=new Varien_Data_Collection();
$collection->addItem($objProduct);

There are various other functions in this class you might need to “work around” a problem. So, have a look and certainly do comment if you also think this class to be a Magical Class!

$order = Mage::getModel('sales/order')->load($order_id);
$items = $order->getAllItems();
$itemcount=count($items);
$name=array();
$unitPrice=array();
$sku=array();
$ids=array();
$qty=array();
foreach ($items as $itemId => $item)
{
	$name[] = $item->getName();
	$unitPrice[]=$item->getPrice();
	$sku[]=$item->getSku();
	$ids[]=$item->getProductId();
	$qty[]=$item->getQtyToInvoice();
}

Hope this might “just” help somebody in need.