pre-release Gutenberg shortcode block fixes

Fixes https://lab.civicrm.org/dev/wordpress/issues/1



Plan for 5.2.0 release if not merged

Signed-off-by: Kevin Cristiano <kcristiano@tadpole.cc>

includes/civicrm.shortcodes.php

@@ -247,6 +247,18 @@ class CiviCRM_For_WordPress_Shortcodes {
    */
   public function render_single( $atts ) {
 
+	  // Do not parse shortcodes in REST context for PUT, POST and DELETE methods
+	  if ( defined( 'REST_REQUEST' ) && REST_REQUEST && ( isset( $_PUT ) || isset( $_POST ) || isset( $_DELETE ) ) ) {
+		  // Return the original shortcode
+		  $shortcode = '[civicrm';
+		  foreach ( $atts as $att => $val ) {
+			  $shortcode .= ' ' . $att . '="' . $val . '"';
+		  }
+		  $shortcode .= ']';
+
+		  return $shortcode;
+	  }
+
     // check if we've already parsed this shortcode
     global $post;
     if ( is_object($post) ) {