Image being saved as "Array" in database from backend form

Question

I have an issue where the images I'm trying to save in a backend form aren't being populated in the database properly..

My Form.php

<?php

class FactoryX_Blog_Block_Manage_Blog_Edit_Form extends 
Mage_Adminhtml_Block_Widget_Form
{
    protected function _prepareForm()
    {
        $form = new Varien_Data_Form(
            array(
                 'id'     => 'edit_form',
                 'action' => $this->getUrl('*/*/save', array('id' => $this->getRequest()->getParam('id'))),
                 'method' => 'post',
                 'enctype'  => 'multipart/form-data'
            )
        );

        $form->setUseContainer(true);
        $this->setForm($form);
        return parent::_prepareForm();
    }
}

The field in /Edit/Form.php

$fieldset->addField('main_image', 'image', array(
      'label'     => Mage::helper('blog')->__('Upload a Main Image'),
      'required'  => true,
      'name'      => 'main_image',
    ));

Controller in save action:

if(isset($_FILES['main_image']['name']) and 
(file_exists($_FILES['main_image']['tmp_name']))){
        try {
            $uploader = new Varien_File_Uploader('main_image');
            $uploader->setAllowedExtensions(array('jpg','jpeg','gif','png')); 
            $uploader->setAllowRenameFiles(false);
            $uploader->setFilesDispersion(false);

            $path = Mage::getBaseDir('media') . DS . "/blog" ;

            $uploader->save($path, $_FILES['main_image']['name']);

            $data['main_image'] = $_FILES['main_image']['name'];
      }catch(Exception $e) {

      }
    }
    else {      
        if(isset($data['main_image']['delete']) && $data['main_image']['delete'] == 1)
            $data['image_main'] = '';
        else
            unset($data['main_image']);
    }

The images are saving into the media folder how I'd like them to, but the main_image field in my database is showing up as "Array". The main image field is type Varchar(255).

I would like the path of the image to be saved to the database instead.

Answer 1

Actually it's just PHP nature. The $_FILE['field_name']['name'] is an array, not string in most cases. You can modify Controller to the following:

foreach($_FILES['main_image']['name'] as $filename)   
    $uploader->save($path, $filename);

Ref:

• http://php.net/manual/en/reserved.variables.files.php
• http://php.net/manual/en/features.file-upload.post-method.php