I'm trying to build a custom function which returns the URL of a resized image..

The deal is that I'm going to have a series of thumbnail images listed on the page, each of which will link to a larger version of the image. I don't want the linked to image to be the full size image, however, as this is likely to be too large, so I wanted to provide a link to a resized image.

(Following me so far?)

Right now the code in my template looks like this:

<% if $Photos %>
	<ul class="project-photos">
		<% loop $Photos %>
			<li><a href="{$URL}">{$CroppedImage(210,210)}</a></li>
		<% end_loop %>
	</ul>
<% end_if %>

what I was planning on changing the `{$URL}` to something like `{$croppedURL(610)}`, and having a function on my Photo class (which extends the Image class) which returned the resized the URL, figuring I would do something like this:

public function croppedURL($width = false)  {
	if ($width != false) {
		$this->resizeByWidth($width);
	}
	return $this->URL();
}

But upon doing so, I get a Server Error 500.

I'vee tried my best to make this work following the examples found on http://doc.silverstripe.org/framework/en/reference/image - but thus far I've not had any luck - can someone help please?

Thank you :)

As seems to be the story of my life right now - but no sooner than I finish posting this request for help, I find the answer.

Having looked at http://www.ssbits.com/snippets/2009/resizing-an-image-in-a-custom-img-tag/ I've found that the solution to my problem already exists, I simply need to replace the `{$URL}` with `{$SetWidth(630).URL}` and it does exactly what I need it to do..

.. so that's great, but returning to my original question, just for my own knowledge, can anyone tell me why my attempted solution didn't work?

can anyone tell me why my attempted solution didn't work?

There is no method URL() in the Photo, Image or File class.

It would had worked if you used $this->getURL() or $this->URL.

I use this

$Image.SetSize( 75, 75 ).getAbsoluteURL

@Bambii7 - is that the code for the class file?

uh i searched same thing, sometimes u build template for gallery with some js and need re-sized/croped etc image path (not img tag with image)

Silver 3.x u can get it easy like $Image.SetSize(75,75).URL

example returns your image re-sized 75*75px path.

Ofc u can crop, scale re-size etc
https://docs.silverstripe.org/en/3.2/developer_guides/files/images/

That's not code for class, its code for template , can be used for any image and vals supported like for ex:
$MySiteConfig.CoverMain.CroppedImage(2000, 575).URL

tnx Bambii7 to help me figure that out fast ;)

This is what i finally did to get nice gallery

<% if Photos %>
<% loop Photos %>
<a class="photo" href="$SetRatioSize(1920,1200).URL">$CroppedImage(400,256) </a>
<% end_loop %>
<% end_if %>

So i set ratio for original image and got url back and then i cropped thumb .... ofc there is some javascript as well to make it look fancy but thats basic ...