Title: [Plugin: Posts 2 Posts] Call to function error Last modified: August 20, 2016 --- # [Plugin: Posts 2 Posts] Call to function error * Resolved [brandonferens](https://wordpress.org/support/users/brandonferens/) * (@brandonferens) * [13 years, 9 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-call-to-function-error/) * Here is the error that I am getting. This happened upon upgrading from 1.3 to 1.4. * Fatal error: Call to a member function get_object() on a non-object in /home/ perfects/public_html/inewsource.perfectspacedev.com/wp-content/plugins/posts- to-posts/core/directed-type.php on line 132 * This is happening on a custom post called Articles. Let me know if you would like access to our dev environment so you can check it out yourself. * [http://wordpress.org/extend/plugins/posts-to-posts/](http://wordpress.org/extend/plugins/posts-to-posts/) Viewing 15 replies - 1 through 15 (of 16 total) 1 [2](https://wordpress.org/support/topic/plugin-posts-2-posts-call-to-function-error/page/2/?output_format=md) [→](https://wordpress.org/support/topic/plugin-posts-2-posts-call-to-function-error/page/2/?output_format=md) * Plugin Author [scribu](https://wordpress.org/support/users/scribu/) * (@scribu) * [13 years, 9 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-call-to-function-error/#post-2975953) * Well, access to the dev environment would be good, but I’d like to try reproducing it locally first. * Please share the `p2p_register_connection_type()` call that you think is causing the problem. * Thread Starter [brandonferens](https://wordpress.org/support/users/brandonferens/) * (@brandonferens) * [13 years, 9 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-call-to-function-error/#post-2975954) * I’m guessing it is one of these: * ``` p2p_register_connection_type( array('name' => 'projects_to_articles', 'from' => 'project', 'to' => 'article', 'reciprocal' => true ) ); p2p_register_connection_type( array('name' => 'articles_to_articles', 'from' => 'article', 'to' => 'article', 'reciprocal' => true ) ); p2p_register_connection_type( array('name' => 'articles_to_data-sets', 'from' => 'article', 'to' => 'data-set', 'reciprocal' => true ) ); ``` * [khanman225](https://wordpress.org/support/users/khanman225/) * (@khanman225) * [13 years, 9 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-call-to-function-error/#post-2975955) * Same problem on upgrade. * Here are my registration function calls: * ``` p2p_register_connection_type( array( 'name' => 'actors_to_tv-shows', 'from' => 'actors', 'to' => 'tv-shows', 'reciprocal' => true, 'fields' => array( 'character' => array('title' => 'Character', 'type' => 'text') ) ) ); p2p_register_connection_type( array( 'name' => 'clothing_to_actors', 'from' => 'clothing', 'to' => 'actors', 'reciprocal' => true ) ); p2p_register_connection_type( array( 'name' => 'clothing_to_tv-shows', 'from' => 'clothing', 'to' => 'tv-shows', 'reciprocal' => true ) ); p2p_register_connection_type( array( 'name' => 'clothing_to_clothing', 'from' => 'clothing', 'to' => 'clothing', 'reciprocal' => true ) ); ``` * Plugin Author [scribu](https://wordpress.org/support/users/scribu/) * (@scribu) * [13 years, 9 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-call-to-function-error/#post-2976042) * I can’t reproduce the error with either connection type sets. * So, brandonferens, if you can give me access to your dev site, my email is mail AT scribu.net * [FriendlyWP](https://wordpress.org/support/users/mmcginnis/) * (@mmcginnis) * [13 years, 9 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-call-to-function-error/#post-2976056) * Just a thought, it may be the add_action call for the register-connection function you’re using which causes the error. When I tried using anything other than wp_loaded: * `add_action( 'wp_loaded', 'my_connection_types' );` * that’s the error I saw. For instance when I tried * `add_action( 'init', 'my_connection_types' );` * or * `add_action( 'p2p_init', 'my_connection_types' );` * I got that error. I could be totally off-base, just thought I’d mention it in case it’s useful. * [khanman225](https://wordpress.org/support/users/khanman225/) * (@khanman225) * [13 years, 9 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-call-to-function-error/#post-2976061) * [@mmcginnis](https://wordpress.org/support/users/mmcginnis/) – I still get the same error when using the different hooks. * [@scribu](https://wordpress.org/support/users/scribu/) – If I comment out the clothing-to-actors call then the error is gone on the edit actor page and the edit clothing page (but still on the edit tv shows page). Not sure if that helps. * [acsnaterse](https://wordpress.org/support/users/acsnaterse/) * (@acsnaterse) * [13 years, 9 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-call-to-function-error/#post-2976100) * Just for the info: Got the same issue here after upgrading. Changing the hooks didn’t work for me either. * This is the code that I’m using: * ``` function uprs_connection_types() { // Make sure the Posts 2 Posts plugin is active. if ( !function_exists( 'p2p_register_connection_type' ) ) return; p2p_register_connection_type( array( 'name' => 'reviews_to_products', 'from' => 'review', 'to' => 'product', 'reciprocal' => true ) ); } add_action( 'p2p_init', 'uprs_connection_types' ); ``` * So, if there’s an outcome, please share 🙂 * Plugin Author [scribu](https://wordpress.org/support/users/scribu/) * (@scribu) * [13 years, 9 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-call-to-function-error/#post-2976102) * I was able to reproduce the error locally. Working on a fix. * Plugin Author [scribu](https://wordpress.org/support/users/scribu/) * (@scribu) * [13 years, 9 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-call-to-function-error/#post-2976103) * Should be fixed in the [development version](http://downloads.wordpress.org/plugin/posts-to-posts.zip)( 1.4.1-alpha). * [acsnaterse](https://wordpress.org/support/users/acsnaterse/) * (@acsnaterse) * [13 years, 9 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-call-to-function-error/#post-2976106) * Yup, confirmed. Works here in 1.4.1-alpha. * Thanks! * [Manuel Schmalstieg](https://wordpress.org/support/users/targz-1/) * (@targz-1) * [13 years, 9 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-call-to-function-error/#post-2976109) * Yup, I got the same issue with the 1.4 update (only in the admin interface though, on the public facing pages everything worked fine). * The 1.4.1-alpha fixed it. * Thread Starter [brandonferens](https://wordpress.org/support/users/brandonferens/) * (@brandonferens) * [13 years, 9 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-call-to-function-error/#post-2976112) * Perfect! Thanks for the update. * [Christian Denat](https://wordpress.org/support/users/yakafaucon/) * (@yakafaucon) * [13 years, 9 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-call-to-function-error/#post-2976113) * Great, I got the same problem.. but as I upgraded in same time Event manager plugin, I was so disapointed .. All is working now qith the alpha ! * Thanks * [dangranata](https://wordpress.org/support/users/dangranata/) * (@dangranata) * [13 years, 8 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-call-to-function-error/#post-2976218) * I’m getting a strange error – which seems to be isolated to a single (local) install with a custom theme. I’m fully prepared to fix my code, I’m just not sure where to begin. * WP 3.4.1 P2P 1.4.2-alpha2 (also happened with 1.4.1, but not previous versions) * Upon activation, I get a fatal error: * **Call to undefined function get_current_screen() in [localpath]/wp-content/plugins/ posts-to-posts/core/url-query.php on line 27** * I deactivated all other plugins, same error. I did try this with a different install (one that has no P2P connections yet), and there was no problem. * Temporarily commenting out the following lines seemed to fix the problem (lines 12-13 in posts-to-posts/core/url-query.php): * ``` if ( is_admin() ) add_action( 'pre_user_query', array( __CLASS__, 'user_query' ), 9 ); ``` * But I really would rather ensure the problem won’t crop up again once we upgrade. I know not knowing specifics about my install will make it difficult to diagnose, but I’m crawling line by line through any P2P code and I can’t figure out what would trigger that error – so I’m hoping that it might be caused by something obvious (an action hooked too early?) that changed in the most recent version. * Thanks! * Plugin Author [scribu](https://wordpress.org/support/users/scribu/) * (@scribu) * [13 years, 8 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-call-to-function-error/#post-2976219) * Yes, that’s really strange, since `get_current_screen()` is a core WordPress function. * Should have started a new thread, though. Viewing 15 replies - 1 through 15 (of 16 total) 1 [2](https://wordpress.org/support/topic/plugin-posts-2-posts-call-to-function-error/page/2/?output_format=md) [→](https://wordpress.org/support/topic/plugin-posts-2-posts-call-to-function-error/page/2/?output_format=md) The topic ‘[Plugin: Posts 2 Posts] Call to function error’ is closed to new replies. * ![](https://s.w.org/plugins/geopattern-icon/posts-to-posts_7a8e9d.svg) * [Posts 2 Posts](https://wordpress.org/plugins/posts-to-posts/) * [Frequently Asked Questions](https://wordpress.org/plugins/posts-to-posts/#faq) * [Support Threads](https://wordpress.org/support/plugin/posts-to-posts/) * [Active Topics](https://wordpress.org/support/plugin/posts-to-posts/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/posts-to-posts/unresolved/) * [Reviews](https://wordpress.org/support/plugin/posts-to-posts/reviews/) * 16 replies * 8 participants * Last reply from: [dangranata](https://wordpress.org/support/users/dangranata/) * Last activity: [13 years, 8 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-call-to-function-error/page/2/#post-2976220) * Status: resolved