Magento helps

magento.php

<?php

//display all keys in magento registry

$class = new ReflectionClass('Mage');
$prop  = $class->getProperty('_registry');
$prop->setAccessible(true);
$registry = $prop->getValue();
var_dump(
 array_keys($registry)
);
/*

ChildHtml uses in Magento

*/

//Display ChildHtml
echo $this->getChildHtml('child_block');


//Pass value to ChildHtml

$this->getChild('child_block')->setData('product_id', "$productId");
echo $this->getChildHtml('child_block', false); 

/* 
*  Here $productId is your dynamic value and you need to pass "false" (Block Caching No) as  additional parameter in childHtml(). 
*  By default it takes "true" (Block Caching Yes). 
*/

// get option from magento atribute 
Mage::getSingleton('eav/config')->getAttribute('catalog_product', 'deliverytime')->getSource()->getOptionText($groupsKey);

?>

Magento ask to login again, again and again after you logged in:
To resolve this, you just need comment this following lines:  

Open file: app/code/core/Mage/Core/Model/Session/Abstract/Varien.php

and change:
<?php

// session cookie params
$cookieParams = array(
    'lifetime' => $cookie->getLifetime(),
    'path'     => $cookie->getPath(),
    // 'domain'   => $cookie->getConfigDomain(),
    // 'secure'   => $cookie->isSecure(),
    // 'httponly' => $cookie->getHttponly()
);
?>


fucking notices like:

Notice: Undefined offset: 0  in /var/www/project/app/design/frontend/........

<?php
error_reporting(E_ALL & ~E_NOTICE & ~E_WARNING);
ini_set('display_errors','off');

?>

lista de links legais

http://www.catgento.com/magento-useful-functions-cheatsheet/


using remote media

mysql> update core_config_data set value = 'http://dressto.com.br/media/' where path = 'web/unsecure/base_media_url';

mysql> update core_config_data set value = 'http://dressto.com.br/media/' where path = 'web/secure/base_media_url';

rsync 

rsync -avO -e 'ssh' [email protected]:public_html/media/ /storage/aroeira/media/ --exclude=catalog/product/cache --exclude=import --exclude=tmp

// Update admin password

UPDATE admin_user SET password = MD5('suporte') WHERE username = 'admin';

<?php
//Integrity constraint violation: 1052 Column 'increment_id' in where clause is ambiguous
//http://stackoverflow.com/questions/26920895/how-to-properly-add-a-shipping-description-column-in-magento-order-grid
//http://stackoverflow.com/questions/15343967/searching-sales-order-grid-redirects-to-dashboard-in-magento-1-7

// The increment_id column need to have the additional
// 'filter_index'=>'main_table.increment_id',
// So the Grid column now looks like this:

$this->addColumn('order_id', array(
    'header' => Mage::helper('sales')->__('Order Id'),
    'align' =>'left',
    'index' => 'increment_id',
    'filter_index'=>'main_table.increment_id',
));

?>