Title: [Plugin: Posts 2 Posts] Display connect TO posts Last modified: August 20, 2016 --- # [Plugin: Posts 2 Posts] Display connect TO posts * [Li-An](https://wordpress.org/support/users/li-an/) * (@li-an) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-display-connect-to-posts/) * Second question (sorry for that), it’s hard for my little head to understant clearly how your plugin works (I’m a little lost with from and to). OK, I managed to show related posts FROM (default behaviour). I want now tho show posts TO. I look at Wiki the code… and I cannot understand. It’s exactly the same code for the two so I’ve got the same output. I did use Winmerge to get sure I was not dreaming. The SAME code 🙂 * [http://wordpress.org/extend/plugins/posts-to-posts/](http://wordpress.org/extend/plugins/posts-to-posts/) Viewing 14 replies - 1 through 14 (of 14 total) * Plugin Author [scribu](https://wordpress.org/support/users/scribu/) * (@scribu) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-display-connect-to-posts/#post-2419513) * I need to know: * * what the call to p2p_register_connection_type() looks like * what the code you’re having trouble with looks like * the template file in which said code is added * Even if it’s the same code, the value of get_queried_object_id() is different. * Thread Starter [Li-An](https://wordpress.org/support/users/li-an/) * (@li-an) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-display-connect-to-posts/#post-2419533) * Thank you for quick answer. I put this: * ``` 'page_un', 'from' => 'webcomic', 'to' => 'webcomic', 'sortable' => 'any', ) ); } add_action( 'init', 'my_connection_types', 100 ); ?> ``` * I added the code in a single-webcomic.php (custom post). * Maybe I have not understand how the plugin works. I try to explain what I try to do (sorry for my bad English). I want to create a webcomics navigation. Each comics page is a custom post (named webcomic). As there will be a lot of short stories, I wanted to use your plugin to link every posts of each story. To manage the stories, I thought I had to make the first post of the story special. An example: a story with page 1, page 2 and page 3. To list all the pages related to one page, I used the FROM feature and add the two other pages. No problem, the code shows the related pages. Now, I need a link to the first page of the story (“go to first page”). I tried to link TO page 2 and 3 to page 1 but I don’t know to get the link to page 1. Maybe I’m completely wrong. * Plugin Author [scribu](https://wordpress.org/support/users/scribu/) * (@scribu) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-display-connect-to-posts/#post-2419539) * Interesting approach. I would have created an additional “serie” post type that would be connected to all the webcomics. * Anyway, this should work: * ``` $query = new WP_Query( array( 'p2p_type' => 'page_un', 'post_type' => 'webcomic', 'connected_to' => get_queried_object_id(), ) ); $first_comic = $query->posts[0]; ``` * The `'connected_to'` part is important. * Thread Starter [Li-An](https://wordpress.org/support/users/li-an/) * (@li-an) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-display-connect-to-posts/#post-2419610) * > Interesting approach. I would have created an additional “serie” post type > that would be connected to all the webcomics. * Could you explain more ? For the moment, I decided to create a custom taxonomy with one tag: “first page”. Every first page will get this tag so I can list all stories, showing only the first page 🙂 (and maybe a custom field with the title of the story but I did not find how to show this title in the other pages. I tink I will have to give the same custom field to all posts). * Thank you for your code but I did not manage to use the $first_comic to get the link to first post. Could you explain ? (and sorry for such dumb questions). * Plugin Author [scribu](https://wordpress.org/support/users/scribu/) * (@scribu) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-display-connect-to-posts/#post-2419618) * A ‘serie’ post would just be a container for ‘webcomic’ posts. * The connection type would look like this: * ``` p2p_register_connection_type( array( 'id' => 'page_un', 'from' => 'serie', 'to' => 'webcomic', 'sortable' => true ) ); ``` * You can also set ‘cardinality’ => ‘one-to-many’ if you want a webcomic to only belong to a single serie. * You should just be able to follow the explanations on the wiki: * [https://github.com/scribu/wp-posts-to-posts/wiki/Basic-usage](https://github.com/scribu/wp-posts-to-posts/wiki/Basic-usage) * Thread Starter [Li-An](https://wordpress.org/support/users/li-an/) * (@li-an) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-display-connect-to-posts/#post-2419630) * I will study this. It’s very nice for you to make such suggestions as I am searching for good advice. * And for the $first_comic = $query->posts[0]; code and how to retrieve the first page link ? * Plugin Author [scribu](https://wordpress.org/support/users/scribu/) * (@scribu) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-display-connect-to-posts/#post-2419634) * echo `get_permalink( $first_comic );` * But if you’re going with the ‘serie’ post type, it will be different. * Thread Starter [Li-An](https://wordpress.org/support/users/li-an/) * (@li-an) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-display-connect-to-posts/#post-2419650) * Thank you. It works. Now I will take a look at the series concept and I’m afraid I will need your help 🙂 * Thread Starter [Li-An](https://wordpress.org/support/users/li-an/) * (@li-an) * [14 years, 5 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-display-connect-to-posts/#post-2419792) * OK, here I am again. I have created my “stories” post type and register the connection to webcomics page with ‘cardinality’ => ‘one-to-many’. Now, I have to create in each webcomics page a link to “previous story” and “next story”. And I have no idea how to get this 🙂 And a link to the story. Sorry for this questions but I did not find any information on the wiki or maybe I did not look at the good place. * Plugin Author [scribu](https://wordpress.org/support/users/scribu/) * (@scribu) * [14 years, 5 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-display-connect-to-posts/#post-2419793) * In your single-webcomic.php file: * [https://gist.github.com/20d28d3066d61eb46852](https://gist.github.com/20d28d3066d61eb46852) * Thread Starter [Li-An](https://wordpress.org/support/users/li-an/) * (@li-an) * [14 years, 5 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-display-connect-to-posts/#post-2419794) * Thank you again 🙂 I plan to make a complete tutorial about this webcomics concept when I will achieve it. * Thread Starter [Li-An](https://wordpress.org/support/users/li-an/) * (@li-an) * [14 years, 5 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-display-connect-to-posts/#post-2419795) * OK… I’ve got this * ``` p2p_register_connection_type( array( 'id' => 'histoire', 'from' => 'stories', 'to' => 'webcomic', 'sortable' => 'true', 'cardinality' => 'one-to-many', 'title' => array( 'from' => 'Reliés', 'to' => 'Histoire' ), ) ); ``` * and * ``` get_connected( $comic_id )->posts[0]->ID; $prev = p2p_type( 'histoire' )->get_prev( $comic_id, $story_id ); $next = p2p_type( 'histoire' )->get_next( $comic_id, $story_id ); // Display what we found echo get_permalink( $prev ); echo get_permalink( $story_id ); echo get_permalink( $next ); ?> ``` * and an error about get_prev and get_next * Warning: call_user_func_array() expects parameter 1 to be a valid callback, class‘ P2P_Directed_Connection_Type’ does not have a method ‘get_prev’ in E:\xampp\htdocs\ wordpress\wp-content\plugins\posts-to-posts\core\type.php on line 86 * The echo $prev and $next give me the URL of the actual post. $story_id is OK. * And I forget to say I need the link to the first post of the webcomics in previous and next story 🙂 * Plugin Author [scribu](https://wordpress.org/support/users/scribu/) * (@scribu) * [14 years, 5 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-display-connect-to-posts/#post-2419796) * Right, it’s `get_previous`, not `get_prev`. * Thread Starter [Li-An](https://wordpress.org/support/users/li-an/) * (@li-an) * [14 years, 5 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-display-connect-to-posts/#post-2419797) * The get_previous and get_next functions do not work for me… I tried get_adjacent too but with no result. echo get_permalink ( $prev ) show the URL of the actual post (same for $next) $story_id seems correct as echo get_permalink( $story_id) gives the URL to the story custom post. Viewing 14 replies - 1 through 14 (of 14 total) The topic ‘[Plugin: Posts 2 Posts] Display connect TO posts’ 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/) * 14 replies * 2 participants * Last reply from: [Li-An](https://wordpress.org/support/users/li-an/) * Last activity: [14 years, 5 months ago](https://wordpress.org/support/topic/plugin-posts-2-posts-display-connect-to-posts/#post-2419797) * Status: not resolved