Issues writing functions when database column ends in _image

brandonkboswell · April 2012

I've been trying to write a model that uses a different set of images for the thumbnails and main images and have had some trouble trying to get both image fields to work correctly.

I've tried writing my own get_thumb_image method, but if the database column ends in _image, then it just won't work. Any ideas why this is? I've tried multiple different approaches and this still seems to be the problem. I have tried adding _upload to the field name in the form_fields method but still no luck. Code is below:

<?php if (!defined('BASEPATH')) exit('No direct script access allowed');

require_once(FUEL_PATH.'models/base_module_model.php');

class Services_model extends Base_module_model {

public $required = array('name');

function __construct()
{
parent::__construct('services'); // table name
}

function list_items($limit = NULL, $offset = NULL, $col = 'id', $order = 'asc')
{
$data = parent::list_items($limit, $offset, $col, $order);
return $data;
}

function form_fields($values = array())
{
$fields = parent::form_fields($values);
$fields['thumb_image']['upload_path'] = assets_server_path('services/thumb/', 'images');
$fields['thumb_image']['overwrite'] = TRUE;

return $fields;
}
}

class Service_model extends Data_record {
public function get_block()
{
$output = '<article class="service">';
$output .= $this->get_thumb_image();
$output .= '

'.$this->name.'

';
$output .= '';
return $output;
}

public function get_thumb_image()
{
if(!empty($this->thumb_image)){
return '

thumb_image).'" />';
} else {
return false;
}
}

public function get_image()
{
if (!empty($this->image)) {
return '

image).'" />';
} else {
return false;
}
}

}
?>

My database structure looks like this: http://brandonboswellphoto.com/dropbox/screenshot.png

brandonkboswell · April 2012

Sorry about the formatting, is there a way to comment the code so that it doesn't do that?

admin · April 2012

FUEL will automatically create a "thumb_image_upload" file input field if it sees a field that ends with "_image" or "_img" (this code happens in the parent Base_module_model::form_fields method if you are interested). You then need to add the "upload_path" to that field like so:


function form_fields($values = array())
{
$fields = parent::form_fields($values);
$fields['thumb_image_upload']['upload_path'] = assets_server_path('services/thumb/', 'images');
$fields['thumb_image_upload']['overwrite'] = TRUE;

return $fields;
}

Use the "code" tag for formatting.

brandonkboswell · April 2012

So i've updated my form_fields method and the files are being uploaded in the correct place, however I'm still running into an issue with my get_thumb_image method. It doesn't return the information from the thumb_image column of the data base. Code is below

Data Record Class that contains the method


	class Service_model extends Data_record {
		public function get_block()
	    {
	    	$output =  '<article class="service">';
			$output .=		$this->get_thumb_image();
			$output .=		'<h2>'.$this->name.'</h2>';
			$output .=	'</article>';
	        return $output;
	    }

	    public function get_thumb_image()
	    {
	    	if(!empty($this->thumb_image)){
				return '<img src="'.img_path($this->thumb_image).'" />';
	    	} else {
	    		return false;
	    	}
	    }

	    public function get_image()
	    {
	        if (!empty($this->image)) {
	        	return '<img src="'.img_path($this->image).'" />';
	        } else {
	        	return false;
	        }
	    }
	}

View File Calling the Method


<?php
	$service = $CI->uri->segment(2);
	$CI->load->model('services_model');
?>
 
<h1>Services <?php if (!empty($service)) : ?> : <?=$service->name?> <?php endif; ?></h1>

<section class="services">
	<?php if (!empty($service)): ?>
	<?php $service = $CI->services_model->find_one_by_id($service); ?>
		<?=$service->get_block()?>
	<?php else: ?>
	<?php $services = $CI->services_model->find_all();?>
	<?php foreach($services as $service) : ?>
		<?php echo $service->get_block();?>
	<?php endforeach; ?>
	<?php endif ?>
</section>

admin · April 2012

Try the following change:


class Service_model extends Data_record {
	public function get_block()
	    {
	    	$output =  '<article class="service">';
			$output .=		$this->get_thumb_image();
			$output .=		'<h2>'.$this->name.'</h2>';
			$output .=	'</article>';
	        return $output;
	    }

	    public function get_thumb_image()
	    {
	    	if(!empty($this->_fields['thumb_image'])){
				return '<img src="'.img_path($this->_fields['thumb_image']).'" />';
	    	} else {
	    		return false;
	    	}
	    }

	    public function get_image()
	    {
	        if (!empty($this->_fields['image'])) {
	        	return '<img src="'.img_path($this->_fields['image']).'" />';
	        } else {
	        	return false;
	        }
	    }
	}

Note the use of $this->_fields['thumb_image'] and $this->_fields['image']. If you are overwriting a property value like that, you need to reference the _fields array because of how the magic method works (otherwise it can go into an infinite loop because $this->image = $this->get_image()).

brandonkboswell · April 2012

That solved it! I apologize for my ignorance, didn't know you could call those methods like that!

Thank you!

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Issues writing functions when database column ends in _image

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