Aesqe

Hi there 🙂

I’ve been working on my “File Gallery” plugin for a while now and it’s available for download and testing from here: http://skyphe.org/code/wordpress/file-gallery/

Among other features, you can use it to detach (unattach) attachments from posts.

Please leave a comment if you find it useful, cheers 🙂

this works for pages:

function custom_pages_query( $query )
{
	global $wp, $wpdb;

	if( isset($_GET["meta_key"]) )
	{
		$wp->private_query_vars[] = 'meta_key';
		$query['meta_key'] = $_GET["meta_key"];
	}

	if( isset($_GET["meta_value"]) )
	{
		$wp->private_query_vars[] = 'meta_value';
		$query['meta_value'] = $_GET["meta_value"];
	}

	if( isset($_GET["post_parent"]) )
	{
		$post_parent = $_GET["post_parent"];
		$wp->private_query_vars[] = 'post_parent';

		if( !is_numeric($post_parent) )
		{
			$post_parent = $wpdb->get_var( $wpdb->prepare("SELECT <code>ID</code> FROM $wpdb->posts WHERE <code>post_name</code>='%s' AND <code>post_type</code>='page' AND <code>post_status</code>='publish'"), $post_parent);

			if( NULL === $post_parent )
				$post_parent = "";
		}

		$query['post_parent'] = $post_parent;
	}

	return $query;
}
add_filter('manage_pages_query', 'custom_pages_query');

this is for the edit pages screen. i haven’t looked into edit posts screen much, but the situation is a bit different there since the posts are displayed with post_rows() function, which calls ‘&$wp_query->posts’ to get the list of posts.

so you would have to modify wp_query when on edit.php screen within wp-admin to add custom stuff.

i’ll look into it when i find time…

Fixed in 0.7.1.1 🙂

oops sorry about that 😮

also, i’ve learned recently, it’s better to check an option’s existence with

if(false === get_option())

than with

if(!get_option("medium_crop"))

because the second version will also return false (equal to true, that is) if option is there, but empty.

mores: i’ll look into it, it all depends on the order in which functions are executed.

please take a look at this topic:

http://wordpress.org/support/topic/238007

correction: when setting crop option, it should be written like this:

add_option("anothersize_crop", "0");

instead of:

add_option("anothersize_size_crop", "0");

no need for “_size” after size name and before “_crop”, sorry about that.

try something like this:

if( FALSE === get_option("frontpage_size_w") )
{
	add_option("frontpage_size_w", "260");
	add_option("frontpage_size_h", "0");
	add_option("frontpage_size_crop", "0");
}
else
{
	update_option("frontpage_size_w", "260");
	update_option("frontpage_size_h", "0");
	update_option("frontpage_size_crop", "0");
}

function additional_image_sizes( $sizes )
{
	$sizes[] = "frontpage";

	return $sizes;
}
add_filter( 'intermediate_image_sizes', 'additional_image_sizes' );

the above example will add size called “frontpage” to the list of image sizes. for each additional image size, you will have to add its name to the $sizes array and add its width, height and crop values to wp’s options.

like this:

if( FALSE === get_option("frontpage_size_w") )
{
	add_option("frontpage_size_w", "260");
	add_option("frontpage_size_h", "0");
	add_option("frontpage_size_crop", "0");

	add_option("anothersize_size_w", "260");
	add_option("anothersize_size_h", "0");
	add_option("anothersize_size_crop", "0");
}
else
{
	update_option("frontpage_size_w", "260");
	update_option("frontpage_size_h", "0");
	update_option("frontpage_size_crop", "0");

	update_option("anothersize_size_w", "260");
	update_option("anothersize_size_h", "0");
	update_option("anothersize_size_crop", "0");
}

function additional_image_sizes( $sizes )
{
	$sizes[] = "frontpage";
	$sizes[] = "anothersize";

	return $sizes;
}
add_filter( 'intermediate_image_sizes', 'additional_image_sizes' );

you can put this code in the functions.php file, or create a plugin out of it.

cheers 😉

No problem 🙂