Big Problem – Filter / Hook – Pre DB insert

I came up with

function hashtag_to_tag( $data , $postarr )   // wp_insert_post_data
{

  $content = $data['post_content'];
  preg_match_all( '/\B#(\w*[a-zA-Z-]+\w*)/', $content, $matches );
  $stringed = implode(",", $matches);
  $data['tags_input'] = $stringed;    //'tags_input' => [ '<tag>, <tag>, <...>' ] //For tags.

  return $data;
  return $postarr;
}
add_filter('wp_insert_post_data', 'hashtag_to_tag', 2, 2);

But
‘tags_input’ is only in – http://codex.wordpress.org/Function_Reference/wp_insert_post

Not in http://codex.wordpress.org/Plugin_API/Filter_Reference/wp_insert_post_data

if i save this in functions.php of my template the Publish button changes to “Submit for Review” and the post is going nowhere and cant be found ….

Do i have to change the default array in wp_insert_post in post.php or where is the problem ???

if ( isset( $tags_input ) && is_object_in_taxonomy($post_type, 'post_tag') )
		wp_set_post_tags( $post_ID, $tags_input );

this is in function wp_insert_post line:2342
is this executed after thewp_insert_post_data ..i dont think so ..but i dont get it …

Found solution for “Submit for Review” Problem

add_filter( 'wp_insert_post_data', 'avoid_blog_page_permalink_collision', 10, 2 );

in includes/ms.php line 738-759 …

have to set priority behind 10 so i set it to 11 😉

But no effect on the posted tags … X(

Im done for today …

This is still the best shot:

function hashtags_to_tags($post_id = 0) {

		$content = get_post($post_ID); /doesnt work atm

		preg_match_all( '/\B#(\w*[a-zA-Z-]+\w*)/', $content, $matches );
		// preg_replace ( '(#)', '', $matches[0]);

		wp_set_post_tags( $post_id, $matches[0], $taxonomy = 'post_tag', $append = true );

	}
add_action('publish_post','hashtags_to_tags');

It adds the tags as i want but i cant get any content input in the function …

I think this isnt possible … will have to find another solution

the 3rd time i try a new way … frustrating …

Want: Simply autoconvert twitter hashtags to wordpress tags.

Is wordpress not compatible with this simple small wish …

if i count the hours … i would be a week i´m sitting on this single problem.

Not cool – Im done for today ….

To remember: autosaved drafts get a $_POST[‘temp_ID’] …

hey what is ‘_Post’ …. ah okay – http://codex.wordpress.org/Function_Reference/stripslashes_deep

array( ‘taxonomy’ => $tax_name ) ( $taxonomy = ‘post_tag’ )

This is where i have to write the tags in context with the Post id

…

So F U C K yeah ::: dONE

function hashtags_to_tags($post_id, $post) { 															// both are needed !

		$content = $post->post_content; 																// get the content of post

		preg_match_all( '/\B#(\w*[a-zA-Z-]+\w*)/', $content, $matches ); 								// filter hashtags
		$out = (array_values($matches)); 																// cleanup array fucking ugly but works

		wp_set_object_terms( $post_id, $tags = $out[0], $taxonomy = 'post_tag', $append = true ); 		// Universal for anny input
}

add_filter('save_post','hashtags_to_tags',2, 2);   									// High priority might not needed but the 2nd parameter is

This is an Universal Filter. Every post content is filterd AUTOMATICALLY.

it would be awesome if somebody with more Skills could make this a Plugin like :

http://wordpress.org/extend/plugins/wordpress-filter/

Which isnt working automatically … and its old and should be updated.
Had some Bug´s wit 3.04 …

Thx @rich ‘elfin’ Pedley … he tried to help …

Anyway im DONE … my problem is solved by me … So i´m the only problem that is left ^^

…off…