Magento add a column to backend newsletter gridview - php

Question

In the magento system, I added the columns subscriber_firstname and subscriber_lastname to the newsletter_subscriber db table.
In the admin area of magento, I want the Newsletter>Newsletter Subscribers grid table to show:
customer first name if it exists, otherwise show newsletter_subscriber.subscriber_firstname if it exists, otherwise show nothing
customer last name if it exists, otherwise show newsletter_subscriber.subscriber_lastname if it exists, otherwise show nothing
Which magento files do I need to edit to make this work? How do I go about editing the files to make this work?

Answer 1

app/code/core/Mage/Adminhtml/Block/Newsletter/Subscriber/Grid.php
You'll want to condition this based off if subscriber_firstname or subscriber_lastname have values or not:
$this->addColumn('subscribername', array(
'header' => Mage::helper('newsletter')->__('Subscriber First Name'),
'index' => 'subscriber_firstname',
'default' => '----'
));
Also, make sure to make a copy of the core files and NOT edit them directly!

Answer 2

the quick and easy solution is to create a column render and select the correct field based on the subscriber type e.g.
app/code/local/Mage/Adminhtml/Block/Newsletter/Subscriber/Renderer/FirstName.php
class Mage_Adminhtml_Block_Newsletter_Subscriber_Renderer_FirstName extends Mage_Adminhtml_Block_Widget_Grid_Column_Renderer_Abstract {
public function render(Varien_Object $row) {
$value = '';
if ($row->getData('type') == 2) {
$value = $row->getData('customer_firstname');
}
else {
$value = $row->getData('subscriber_firstname');
}
return $value;
}
}
then add your render to a local copy of the subscriber grid class
app/code/local/Mage/Adminhtml/Block/Newsletter/Subscriber/Grid.php
$this->addColumn('firstname', array(
'header' => Mage::helper('newsletter')->__('First Name'),
'index' => 'customer_firstname',
'default' => '----',
'renderer' => 'Mage_Adminhtml_Block_Newsletter_Subscriber_Renderer_FirstName'
));
Note. the search and sort will not work on the subscriber name fields, to get this working you will need to extend app/code/core/Mage/Newsletter/Model/Mysql4/Subscriber/Collection.php