Efficient many-to-many connections between posts, pages and custom post types.

wp-centrics

<p>This plugin allows you to create many-to-many relationships between posts of any type: post, page, custom post types, etc.</p>
<p>Configure post 2 post connections easily in a friendly interface.</p>
<p>The new connection metaboxes will appear on the related post edition pages. Search text, post type and term combo filter available as option for it.</p>
<p>Use the standard WP_Query() and get_posts() to get the related posts.</p>
<p>Solid-rock relationships: use his own database table, updated on post status change and removed on post deletion.</p>
<h4>Getting related: the WP_Query way</h4>
<pre><code>// inside main loop, current post ID (p2p_rel_post_id) not needed, current post will be used if you don't set it:

$args = array(
    'p2p_rel_key'        => 'prod_to_bars',  // This is your connection key name. Required.
    'p2p_rel_post_id'    => 1,               // The post ID. Inside main loop dont needed.
    'p2p_rel_direction'  => 'any',           // The connection direction. 'any' by default. Optional. Explained below. ( can be 'any' | 'from_to' | 'to_from' )

    // Of course, here you can add the standard WP arguments you need: post type, status, dates, pagination, etc.
); 

// (at this point, as any other WP looping):

// The Query 
$the_query = new WP_Query( $args );

// The Loop
if ( $the_query->have_posts() ) {
    echo '<ul>';
    while ( $the_query->have_posts() ) {
        $the_query->the_post();
        echo '<li>' . get_the_title() . '</li>';
    }
    echo '</ul>';
} else {
    // no posts found
    echo '<p>Nothing related</p>';
}

// Restore original Post Data 
wp_reset_postdata();
</code></pre>
<h4>Getting related: the get_posts() way</h4>
<pre><code>// inside main loop, current post ID (p2p_rel_post_id) not needed, current post will be used if you don't set it:

$args = array(
    'p2p_rel_key'        => 'prod_to_bars', // This is your connection key name. Required.
    'p2p_rel_post_id'    => 1,              // The post ID. Inside main loop dont needed
    'p2p_rel_direction'  => 'any',          // The connection direction. 'any' by default. Optional. Explained below. ( can be 'any' | 'from_to' | 'to_from' )
    'post_type'          => 'any',          // The filtered post types, can be an array. Optional. 'post' by default. (can be 'any' for all)
    'suppress_filters'   => false           // Required

    // Of course, here you can add the standard WP arguments you need: post type, status, dates, pagination, etc.
); 

// (at this point, as any other WP looping):

$rel_posts = get_posts ( $args );

print_r( $rel_posts );
</code></pre>
<h4>Getting related: getting it raw</h4>
<pre><code>// inside main loop, current post ID (element_id) not needed, current post will be used if you don't set it:

$args = array(
    'key'           => 'prod_to_bars',  // This is your connection key name. Required.
    'element_id'    => 1,               // The post ID. Inside main loop dont needed.
    'element_type'  => 'any',           // The filtered post types, can be an array. Optional. 'post' by default. (can be 'any' for all)
    'status'        => 'any'            // The filtered post status, can be an array. Optional. 'publish' by default. (can be 'any' for all)
    'direction'     => 'any',           // The connection direction. 'any' by default. Optional. Explained below. ( can be 'any' | 'from_to' | 'to_from' )
); 

global $P2P_Relationships;
$rel_posts = $P2P_Relationships->get_raw ( $args );

// Only an array of related post IDs, not the posts objects.
print_r ( $rel_posts ); 
</code></pre>
<h4>The connection direction</h4>
<p>By default, the connections are bidirectional (any). However, you can get related posts only in one direction: ‘from_to’ or ‘to_from’.</p>
<p>You can do the same logic at interface level for your users in the backoffice: you can setup your connection hidding the from metabox or the to metabox (UI mode setting).</p>


Posts 2 Posts Relationships

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