Is it possible to overwrite sharing.phtml view by external module?
My point is to add a new social button. I want to publish a module in marketplace, so I don't want to modify any local file. I read about adding files to /app/design/frontend and configuring file overwrite in XML config. Is it possible to do this?
Yes,you can do by creating new module.
Need define layout for module at config.xml file.
<frontend>
<layout>
<updates>
<!-- insert a layout file in current layout -->
<sharefile><!-- identifier for layout file -->
<file>sharefile.xml</file> <!-- layout file name -->
</sharefile>
</updates>
</layout>
</frontend>
On this layout file need to change template of share block using setTemplate function<catalog_product_view>
<reference name="BlockNameInXml">
<action method="setTemplate"><template>YourtemplatefileLocation/Yourphtml.phtml</template></action>
</reference>
</catalog_product_view>
If you using rwd package then you can try add below code your custom xml layout sharefile.xml .
<catalog_product_view>
<reference name="product.info.sharing">
<action method="setTemplate">
<template>YourtemplatefileLocation/Yourphtml.phtml</template>
</action>
</reference>
</catalog_product_view>
1. Define Config file : First of all create module control file Module name as
Amit_Sharefile.xml at app/etc/modules/
<?xml version="1.0"?>
<config>
<modules>
<Amit_Sharefile>
<codePool>community</codePool>
<active>true</active>
<depends>
<Mage_Catalog />
</depends>
</Amit_Sharefile>
</modules>
</config>
2. Define Main Configuration file: Create a config.xml ,where we are declared table,model,blocks,layouts file , controllers,In a word we can say this configuration file of this extension.
Path Of config.xml is app/code/community/Amit/Sharefile/etc/
As we define codepool is community that it path app/code/community
Here Amit folder is Namespace of module and Sharefile is module name
<?xml version="1.0" ?>
<config>
<modules>
<Amit_Sharefile>
<version>1.0.0</version>
</Amit_Sharefile>
</modules>
<global>
<frontend>
<layout>
<updates>
<sharefile>
<file>sharefile.xml</file>
</sharefile>
</updates>
</layout>
</frontend>
</config>
3. Create layout file : sharefile.xml should be path
app/design/frontend/yourpackage/yourtemplate/layout/ and code is
`
<?xml version="1.0"?>
<layout version="0.1.0">
<catalog_product_view>
<reference name="product.info.sharing"> <!-- block name in layout of share file -->
<action method="setTemplate"> <!-- Change the phtml using setTemplate function -->
<template>YourtemplatefileLocation/Yourphtml.phtml</template>
</action>
</reference>
</catalog_product_view>
</layout>
`
