Support/Comments for RandomImage

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24,524 Posts

sottwell Reply #11, 19 years, 7 months ago

Take a hint from the filedownload snippet, and have a chunk (or a file, for that matter) with the text for each image that gets parsed when the image is loaded. Of course, that means that the chunk or file needs to be updated when images are uploaded.

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87 Posts

Leezig Reply #12, 19 years, 7 months ago

Yes, I was thinking about something possibly like that or even adapting the code available at http://alistapart.com/articles/betterrotator into a snippet possibly.

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122 Posts

hgw Reply #13, 17 years, 1 month ago

Hello,

I just enhanced the snippet a bit with generating the alt attribute by a page variable and defining the folder to retrieve images from not in the snippet, but in the snippet call:

<?php
$i = 0;
$imgDir = opendir ($folder);
	while ( $file = readdir( $imgDir ) )
	{	
		//checks that file is an image
		$file_type = strrchr( $file, "." );
		$is_image = eregi( "jpg|gif",$file_type );
		
		if ( $file != '.' && $file != '..' && $is_image && substr($file,1,5)!='thumb')
		{ $images[$i++] = $file; }
	}
closedir ($imgDir);

srand( (double) microtime()*1000000 );
$image_name = $folder . '/' . $images[rand( 0,sizeof( $images ) -1 )];
$imgSize = GetImageSize( $image_name );

//ends script if no images found
if ( $i == 0 )
	die();
return( "<img src=\"" . $image_name . "\"" . $imgSize[3] . " alt=\"[*pagetitle*]\" />\n" );
?>

Please note the alt-Attribute generated by the page title (may be something else of course, even a variable that you pass to the snippet as a parameter in the snippet call like the folder parameter/variable). I removed the first line "$folder = ’directory to folder here’;" as when calling the snippet, I wrote

[!randomImage? &folder=`assets/images/random`!]

That’s working for me, in .9.6.1p2

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615 Posts

Sylvaticus Reply #14, 17 years ago

Is there a way to modify the code to show images from a folder within a folder?

Let say I have images in
assets/images/random/ and in
assets/images/random/folder1/ as well as in
assets/images/random/folder2/

and I want to show random images from everywhere in assets/images/random/.

How can I do that? (As it is now I get a blank screen when there’s now images in assets/images/random/ and only in assets/images/random/folder1 or assets/images/random/folder2).

Thanks.

I think, thererfor I am! But what I am, and why...?

4,213 Posts

doze Reply #15, 17 years ago

Yes, there is a way to do that...

Look at the comments in PHP’s readdir function manual page for good examples.

"He can have a lollipop any time he wants to. That's what it means to be a programmer."

14 Posts

Nacnud Reply #16, 16 years, 11 months ago

I also hit the fail to save the snippet problem.
I’m hosted with 34SP; looks like they’ve got their security cranked way up too.
The problem is the presence of ’strrchr’ in the posted data.

I had a flash of inspiration and I’ve got a solution.
Simply replace:

$file_type = strrchr( $file, "." );

With:

$file_type = substr( $file, -3 );

Works a treat grin

501 Posts

luuuciano Reply #17, 16 years, 5 months ago

Mmmm, I am trying to use this snippet, but just show nothing...

I have tried the joeindio modificated snippet too
and the Nacnud changed line
without luck...

I have also tried to use full server path, to the random directory... no luck...

any idea?

501 Posts

luuuciano Reply #18, 16 years, 5 months ago

mmm, I just made a php file, using that code... and echoing the outp... and it works!

but why it is not working in modx?? sad

in the template I have called it using:
[[!RandomImage? &folder=`randomredondo` &border=`0`!]]

this code works ok as a regular .php file

<?php
#::::::::::::::::::::::::::::::::::::::::
# Snippet Name: RandomImage
# Short Desc: Displays a random image from a folder
# Version: 1.0a
# Created by: Mike Fairbrother
# Adapted by: Wim Beerens ([email protected])
#
# Date: January 3, 2008
#
# Changelog: 
# January 3th, 2008 -- added &folder parameter
#                   -- added &border parameter
#                   -- added <div id="rndImage"> for css formatting
#
#::::::::::::::::::::::::::::::::::::::::

# Snippet customize settings
$folder	= isset($folder)? $folder:'randomredondo';
$border	= isset($border)? $border:'0';

$i = 0;
$imgDir = opendir ($folder);
	while ( $file = readdir( $imgDir ) )
	{	
		//checks that file is an image
		$file_type = strrchr( $file, "." );
		$is_image = eregi( "jpg|gif",$file_type );
		
		if ( $file != '.' && $file != '..' && $is_image )
		{ $images[$i++] = $file; }
	}
closedir ($imgDir);

srand( (double) microtime()*1000000 );
$image_name = $folder . '/' . $images[rand( 0,sizeof( $images ) -1 )];
$imgSize = GetImageSize( $image_name );

//ends script if no images found
if ( $i == 0 )
	die();
//return( '<div id="rndImage"><img src="' . $image_name . '" ' . $imgSize[3] . ' alt="" border="' . $border . '" /></div>' );

echo '<div id="rndImage"><img src="' . $image_name . '" ' . $imgSize[3] . ' alt="" border="' . $border . '" /></div>';
?>

any idea??

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24,524 Posts

sottwell Reply #19, 16 years, 5 months ago

Is the [[!...!]] part a typo, or your actual snippet tags? It should be either [[...]] or [!...!] (unless this is on Revo, of course)

Studying MODX in the desert - http://sottwell.com
Tips and Tricks from the MODX Forums and Slack Channels - http://modxcookbook.com
Join the Slack Community - http://modx.org

501 Posts

luuuciano Reply #20, 16 years, 5 months ago

Quote from: sottwell at Apr 23, 2010, 03:53 PM

Is the [[!...!]] part a typo, or your actual snippet tags? It should be either [[...]] or [!...!] (unless this is on Revo, of course)

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