How to create More than one single file upload Click the 'Add field' button for entity and select type 'file' for the new attribute in magento

Question

How to create Magento admin custom module click add field button for entity select type 'file' for the new attribute

This is form code:

$fieldset->addField('uploadpdf', 'file', array(
        'label' => Mage::helper('promotionsoffers')->__('Upload PDF'),
        'name'  => 'uploadpdf',

    ));`

Answer 1

This is a simple example of Multiple File Upload

To achieve similar through Magento's Form Library, we will modify its code a bit in this way

Modify getElementHtml method of lib/Varien/Data/Form/Element/Abstract.php

public function getElementHtml()
{
    if($this->getType()=='file' && $this->getMultiple())
        $_multiple = ' multiple';
    $html = '<input id="'.$this->getHtmlId().'" name="'.$this->getName()
         .'" value="'.$this->getEscapedValue().'" '.$this->serialize($this->getHtmlAttributes()).$_multiple.'/>'."\n";
    $html.= $this->getAfterElementHtml();
    return $html;
}

and then just pass new attribute multiple=>true in you field declaration like this

$fieldset->addField('uploadpdf', 'file', array(
    'label' => Mage::helper('promotionsoffers')->__('Upload PDF'),
    'name'  => 'uploadpdf[]',
    'multiple'=>true
));