How To Create a Featured Product-白红宇

How To Create a Featured Product

阅读量：4199 次

发布时间：2019-05-26

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Last modified by

tranquang on Thu, October 21, 2010 13:34

This tutorial will show you how to implement a Featured Product feature. The Featured Product is a product with an attribute added from the administrative UI. When the administrator selects “Yes” in the “Featured ” attribute, that product will be displayed in a content block on the category page.

I’ll explain each step I took to make this custom feature. Please forgive me if I left anything out.

Note: For me the featured product only showed up if the category was not an anchor .

Create a new attribute by going to Catalog > Attributes > Manage Attributes > Add New Attribute.

Attribute Properties

Attribute Identifier:
featured

Scope:
Store View

Catalog Input Type for Store Owner:
Yes/No

Unique Value (not shared with other
product s):
No

Values Required:
No

Input Validation for Store Owner:
None

Apply To:
All Product Types

Front End Properties

Use in quick search:
No

Use in advanced search:
Yes

Comparable on Front-end:
No

Use In Layered Navigation (Can be used only with catalog input type ‘Dropdown’):
No

Visible on Catalog Pages on Front-end:
Yes

Manage Label/Options

Default:
Featured Product

English:
Featured Product

Save the new attribute and go to Catalog → Attributes → Manage Attributes Sets to add the attribute to the default feature set.

Open MyCompany/app/design/frontend/default/default/layout/catalog.xml. We want to add a new <block> right above the product list block in the default category layout.

Insert the block configuration on line 73 (default catalog.xml).

<block type ="catalog/product _featured " name ="product _featured " as ="product _featured " template ="catalog/product /featured .phtml" > 
</block>  

Create a new file, and directories: app/code/local/MyCompany/Catalog/Block/Product /Featured .php

<?php
class MyCompany_Catalog_Block_ 
Product _ 
Featured
extends Mage_Catalog_Block_ 
Product _Abstract 
{ 
public
function get 
Featured
Product
(
)
{ 
// instantiate database connection object
$storeId = Mage:: 
app
(
) -> 
getStore
(
) -> 
getId
(
) ;    
$categoryId = 
$this -> 
getRequest
(
) -> 
getParam
(
'id' , 
false
) ; 
$resource = Mage:: 
getSingleton
(
'core/resource'
) ; 
$read = 
$resource -> 
getConnection
(
'catalog_read'
) ; 
$categoryProduct Table = 
$resource -> 
getTableName
(
'catalog/category_product '
) ; 
//$product EntityIntTable = $resource->getTableName('catalog/product _entity_int'); // doesn't work :(
$product EntityIntTable = 
( string 
) Mage:: 
getConfig
(
) -> 
getTablePrefix
(
) . 
'catalog_product _entity_int' ; 
$eavAttributeTable = 
$resource -> 
getTableName
(
'eav/attribute'
) ; 
// Query database for featured product 
if
(
$categoryId
)
{ 
$select = 
$read -> 
select
(
)
                                      -> 
from
(
array
(
'cp' => 
$categoryProduct Table
)
)
                                      -> 
join
(
array
(
'pei' => 
$product EntityIntTable
) , 
'pei.entity_id=cp.product _id' , 
array
(
)
)
                                      -> 
joinNatural
(
array
(
'ea' => 
$eavAttributeTable
)
)
                                      -> 
where
(
'cp.category_id=?' , 
$categoryId
)
                                      -> 
where
(
'pei.value=1'
)
                                      -> 
where
(
'ea.attribute_code="featured "'
) ; 
}
else
{ 
$select = 
$read -> 
select
(
)
                                      -> 
from
(
array
(
'cp' => 
$categoryProduct Table
)
)
                                      -> 
join
(
array
(
'pei' => 
$product EntityIntTable
) , 
'pei.entity_id=cp.product _id' , 
array
(
)
)
                                      -> 
joinNatural
(
array
(
'ea' => 
$eavAttributeTable
)
)
                                      -> 
where
(
'pei.value=1'
)
                                      -> 
where
(
'ea.attribute_code="featured "'
) ; 
}
$featured Product Data = 
$read -> 
fetchAll
(
$select
) ; 
$i = 
0 ; 
$product  = 
array
(
) ; 
$product id = 
array
(
) ; 
foreach
(
$featured Product Data
as
$row
)
{ 
// instantiate the product object
//$product id[$i] = Mage::getModel('catalog/product ')->load($row['product _id']);
$product id
[
$i
] = 
$row
[
'product _id'
] ; 
// if the product is a featured product , return the object
// if ($product ->getData('featured ')) { 
//}
$i ++; 
}
$product id = 
array_unique
(
$product id
) ; 
$i = 
0 ; 
foreach
(
$product id
as
$id
)
{ 
$product 
[
$i
] = Mage:: 
getModel
(
'catalog/product '
) -> 
load
(
$id
) ; 
$i ++; 
}
return
$product  ; 
}
}
?>

We’re almost there!

Create a new file, and directories, called app/code/local/MyCompany/Catalog/Block/Category/View.php. We’re extending the core class here so our module will be separate from the core code base. When upgrading, we won’t have to worry about our code not working or having to patch files.

<?php
class MyCompany_Catalog_Block_Category_View 
extends Mage_Catalog_Block_Category_View 
{ 
public
function get 
Featured
Product Html 
(
)
{ 
return
$this -> 
getBlockHtml
(
'product _featured '
) ; 
}
}
?>

Edit app/design/frontend/default/default/template/catalog/category/view.phtml and add the following code:

<? = 
$this -> 
getFeatured Product Html
(
)
?>

right above this line:

<? = 
$this -> 
getProduct ListHtml
(
)
?>

Create app/design/frontend/default/default/template/catalog/product /featured .phtml and add some product info HTML to show the featured product . Here is an example that simply displays a link to the product :

<?php
$_product  = 
$this -> 
getFeatured Product 
(
)
?>
         Check this out: <a href= 
"<?php echo $_product ->getProduct Url() ?>" ><?php 
echo
$this -> 
htmlEscape
(
$_product  -> 
getName
(
)
) ?></a> 

Add the following inside the config global tag:

<blocks>  
<catalog>  
<rewrite>  
<product _featured >   MyCompany_Catalog_Block_ 
Product _ 
Featured
</product _featured >  
</rewrite>  
<rewrite>  
<category_view>   MyCompany_Catalog_Block_Category_View 
</category_view>  
</rewrite>  
</catalog>  
</blocks>  

I hope this helps you add a “Featured Product ” feature. It certainly feels thorough, but if I left anything out, please let me know and I’ll be happy to help.

Thanks,

Andy

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