Wordpress 2.5 – change the default name extension for thumbnail image
The thumbnail images generated by old wordpress, usually ended with ***.thumbnail.jpg, but now with upgraded to 2.5, it’s ***-150×150.jpg. Where 150×150 is the default width x height (wp admin).
How can you change back to the original format (.thumbnail.jpg)?
The method handling the creation of thumbnail images are in file wp-includes\media.php. Code handling filename (for WP. 2.5.1) are line 206, 214 and line 226:
$suffix = "{$dst_w}x{$dst_h}";
line 206 change with:
$suffix = "thumbnail";
,
$destfilename = "{$dir}/{$name}-{$suffix}.{$ext}";
line 214 become:
$destfilename = "{$dir}/{$name}.{$suffix}.{$ext}";
and
$destfilename = "{$dir}/{$name}-{$suffix}.jpg";
line 226:
$destfilename = "{$dir}/{$name}.{$suffix}.jpg";
here is the solution:
replace this:
$aImgName = explode(’.',$strSrcImgName);with this:
$aImgName = substr($strSrcImgName,0,strrpos($strSrcImgName, "."));woking with 100+ dots
…. have fun!
I created this workaround to solve the problem. Basically I use the WP function “image_resize_dimensions” which calculates the dimensions of a resized image, according to Settings->Media numbers.
My workaround is supposed to be used with images that contain no dots (except the one for the extension: i.e. my.picture.jpg doesn’t work, while my-picture.jpg works)
Finally…here is the code:
//Gets the custom field of the post
$strSrcImgName = get_post_meta($post->ID, ‘img_main’,1);
//Gets dims of the original image
list($orig_w, $orig_h) = getimagesize( $_SERVER["DOCUMENT_ROOT"].get_option(’upload_path’).’/’.$strSrcImgName );
//Calculates dims of the “medium size” resized image
list($dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h) = image_resize_dimensions($orig_w, $orig_h, get_option(’medium_size_w’), get_option(’medium_size_h’), false);
//..here it is why it doesn’t work with images with more than one dot
$aImgName = explode(’.',$strSrcImgName);
$strMediumImgName = $aImgName[0].’-’.$dst_w.’x’.$dst_h.’.’.$aImgName[1];
Thank you for this suggest.
I changed the script as you wrote, but now WP generates just 2 images (insted of 4): myimage.jpg (original size) and myimage.thumbnail.jpg (dimensions as specified in Settings > Media > “Big size image” …or something similar, sorry, I’m working with an italian versione
).
So I lost two image: “Middle size” and “Thumbnail” (the one I can choose to crop).
Is there a solution to this?
I’m using WP 2.7
Thanks in advance.
Thank you for this phantastic hint! It took me 3 hours to find our why the thumbs have other names now! Sometimes I have the impression, that WP just wants to make uns mad!
Greetings!
Raphael