CODEWITHSUNDEEP
magento
Ashfame
Ashfame

Reputation: 1759

Magento block output gives empty string

I am trying to troubleshoot an issue where the output of my block is an empty string.

I traced it down to the point where I could see PHP statements being evaluated in the template file, but inside toHtml() of class Mage_Core_Block_Abstract, $html = $this->_toHtml(); assigns empty string to $html.

I dig it further, and found that inside fetchView(), $html = ob_get_clean(); assigns empty string to it, even when the template was included above this line, and I could see it evaluating with the use of debugger.

From here I am clueless on how to debug this, may be I am missing something wrong in my module (I am a beginner in Magento).

Here is the concerned code from the module:

app/code/local/AnattaDesign/AbandonedCarts/etc/config.xml

<config>
    <global>
        <blocks>
            <anattadesign_abandonedcarts>
                <class>AnattaDesign_AbandonedCarts_Block</class>
            </anattadesign_abandonedcarts>
        </blocks>
    </global>
    <adminhtml>
    <layout>
        <updates>
            <anattadesign_abandonedcarts>
                <file>layout.xml</file>
            </anattadesign_abandonedcarts>
        </updates>
    </layout>
</adminhtml>

app/design/adminhtml/base/default/layout/layout.xml

<?xml version="1.0" encoding="utf-8"?>
<layout>
    <adminhtml_dashboard_index>
        <reference name="head">
            <action method="addCss">
                <stylesheet>anattadesign/abandonedcarts/css/style.css</stylesheet>
            </action>
            <action method="addJs">
                <script>anattadesign/abandonedcarts/zepto.js</script>
            </action>
            <action method="addJs">
                <script>anattadesign/abandonedcarts/adminhack.js</script>
            </action>
        </reference>
    </adminhtml_dashboard_index>
</layout>

app/code/local/AnattaDesign/AbandonedCarts/controllers/WidgetController.php

<?php

class AnattaDesign_AbandonedCarts_WidgetController extends Mage_Adminhtml_Controller_Action {

    public function indexAction() {
        echo "index action of widget controller";
        die();
    }

    public function renderAction() {
        $html = $this->getLayout()->createBlock( 'anattadesign_abandonedcarts/widget', 'root' )->setTemplate( 'anattadesign/abandonedcarts/widget.phtml' )->toHtml();
        $this->getResponse()->setBody( $html );
        die();
    }
}

app/code/local/AnattaDesign/AbandonedCarts/Block/Widget.php

<?php

class AnattaDesign_AbandonedCarts_Block_Widget extends Mage_Core_Block_Template {

}

I am running this by an admin controller and making the renderAction() fire.

Upvotes: 1

Views: 3220

Answers (1)

MagePal Extensions
MagePal Extensions

Reputation: 17656

Remove the die() in method renderAction()

class AnattaDesign_AbandonedCarts_WidgetController extends Mage_Adminhtml_Controller_Action {

    ....

    public function renderAction() {
        $html = $this->getLayout()->createBlock( 'anattadesign_abandonedcarts/widget')
                ->setTemplate( 'coming.phtml' )
                ->toHtml();
        $this->getResponse()->setBody( $html );
    }
}

Upvotes: 5

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