Magento

There are three categories of modules hosted on Magento Connect:

☆ Core Modules

☆ Community Modules

☆ Commercial Modules

Core and Community modules can be installed via the administration area. Commercial module pages provide price information and a link to an external website.

We can have more than one module with same name but they should be placed in different namespaces. All Magento core modules are contained in Mage namespace.

core/Mage/Catalog

local/Muster/CustomModule

Access block's content from .phtml template file by:

echo $this->getLayout()->createBlock('cms/block')->setBlockId('static_block_id')->toHTML();

Mage::getSingletone() always finds for an existing object if not then create that a newobject but Mage::getModel() always creates a new object.

1) <action method="addJs"><script>js/yourfile.js</script></action>

2) <action method="addCss"><stylesheet>css/yourstyle.css</stylesheet></action>

3) OR

4) <action method="addItem"><type>skin_js</type><name>js/ yourfile.js</name></action>

5) <action method="addItem"><type>skin_css</type><name>css/yourstyle. css</name></action>

<!--?php helper('checkout')--->formatPrice(Mage::getSingleton('checkout/cart')->getQuote()->getGrandTotal()); ?>

1) if(Mage::getSingleton('customer/session')->isLoggedIn()):

2) Mage::getDesign()->setPackageName('package_name')->setTheme('themename');

3) endif;

Steps to create custom Magento module:

Namespace : Viral

Module Name : Mymodule

1) Create directory Mymodule in app/code/local/Viral

2) Create Block, controllers, etc, Module directories. Create controller, block and module file as required.

3) Create module configuration file (app/code/local/Viral/Mymodule/etc/config.xml).

4) Create xml file (app/etc/modules/Viral_ Mymodule.xml)to enable/disable module and tell magento system from which code pool that module will be taken.

Mage::getSingletone() always finds for an existing object if not then create that a new object but Mage::getModel() always creates a new object.

We install one module(Extension Conflict) to findout that Class which is Conflict. We have to written only one config file for both module.

1) <!--?php

2) Mage::getResourceModel('reports/product_collection')--->addOrderedQty()

3) ->addAttributeToSelect('*')->setPage(1, 5)->load();

4) ?>

Final Class:

A Class which Can't be inherited by other class, that class is called final class.

You all knows that final class is inbuilt in java. But in C++ you have to create final class.Two types of Final class, you can create. One who want to create object of final class on Heap and other who wants to create object of Final class on stack.

1) It makes use of private constructor, virtual inheritance and friend class.

2) In place of private constructor, use private Destructor.

Because Constructor can be overloaded and Destructor can't be overloaded.

Currency symbols appear in the Admin panel of your store, and are also used throughout your storefront in orders, customer checkout, and so on.

1) From the Admin panel, select System > Manage Currency > Symbols.

2) Each enabled currency for your store appears in the Currency list.

3) Enter a custom symbol to use for each currency, or select the standard symbol selecting the Use Standard check-box to the right of each currency.

When finished, click the Save Currency Symbols button.

Enabled magento caching

MySQL Query caching

Enable Gzip Compression

Disable any unused modules

Disable the Magento log

Optimise your images

Combine external CSS/JS into one file

Enable Apache KeepAlives: Make sure your Apache configuration has KeepAlives enabled.

app/etc/local.xml

<admin>

<routers>

<adminhtml>

<args>

<frontName><![CDATA[admin]]></frontName>

</args>

</adminhtml>

</routers>

</admin>

OR:-

System=>Config=>Advanced=>Admin=>Admin Base URL

-> Use Custom Admin URL :- No

-> Use Custom Admin Path :- Yes

-> Custom Admin Path :- Your Choice