modifies post meta keys of facebook api modules to avoid conflict with other plugins

library/modules/facebook/index.php

@@ -3,10 +3,10 @@
 namespace guaraci;
 
 function need_share_update( $post_id ) {
-    if ( !metadata_exists( 'post', $post_id, 'shares' ) ) {
+    if ( !metadata_exists( 'post', $post_id, 'fb_shares' ) ) {
         // the first time its called create the metadata for the next turn
-        update_post_meta( $post_id, 'shares', 0 );
-        update_post_meta( $post_id, 'updated_timestamp', time() );
+        update_post_meta( $post_id, 'fb_shares', 0 );
+        update_post_meta( $post_id, 'fb_shares_updated_at', time() );
 
         return false;
     } elseif ( update_share_business_rule( $post_id ) ) {
@@ -26,7 +26,7 @@ function update_share_business_rule( $post_id ) {
     // a cada 24h  -  os demais posts
 
     $rank_position = get_post_ranking_position( $post_id )?: 501; // if is not in rank, place into a regular group
-    $last_time_updated = get_post_meta( $post_id, 'updated_timestamp', true );
+    $last_time_updated = get_post_meta( $post_id, 'fb_shares_updated_at', true );
 
     $date_obj = \DateTime::createFromFormat('U', $last_time_updated);
     $time_interval = $date_obj->diff(new \DateTime('NOW'));
@@ -49,10 +49,10 @@ function update_share_business_rule( $post_id ) {
 }
 
 function set_post_shares( $post_id, $shares ) {
-    update_post_meta( $post_id, 'shares', $shares );
-    update_post_meta( $post_id, 'updated_timestamp', time() );
+    update_post_meta( $post_id, 'fb_shares', $shares );
+    update_post_meta( $post_id, 'fb_shares_updated_at', time() );
 }
 
 function get_post_shares( $post_id ) {
-    return get_post_meta( $post_id, 'shares', true);
+    return get_post_meta( $post_id, 'fb_shares', true);
 }