gpnf-detach-child-entry-from-parent.php: Added snippet to display a metabox on Entry details for nested entries to detach from Parent Entry.

gp-nested-forms/gpnf-detach-child-entry-from-parent.php

@@ -0,0 +1,40 @@
+<?php
+/**
+ * Gravity Perks // Nested Forms // Metabox on Entry Details to detach child entry from parent.
+ * https://gravitywiz.com/documentation/gravity-forms-nested-forms/
+ *
+ * Instruction Video: https://www.loom.com/share/84a6fc86c75449baa544cd8080c3ed15
+ */
+add_filter( 'gform_entry_detail_meta_boxes', function ( $meta_boxes, $entry, $form ) {
+	if ( class_exists( 'GP_Nested_Forms' ) ) {
+		// Only to be displayed for Nested Entries.
+		$parent_entry_id = rgar( $entry, 'gpnf_entry_parent' );
+		if ( ! $parent_entry_id ) {
+			return $meta_boxes;
+		}
+
+		// Either the metabox shows when Nested entry is still attached, or the metabox is skipped when parent link is detached.
+		$action = 'gpnf_detach_parent_entry';
+		if ( rgpost( 'action' ) == $action ) {
+			$entry_id = $entry['id'];
+			gform_delete_meta( $entry_id, 'gpnf_entry_parent' );
+			gform_delete_meta( $entry_id, 'gpnf_entry_parent_form' );
+		} else {
+			$meta_boxes['gpnf_metabox'] = array(
+				'title'    => 'Nested Forms',
+				'callback' => 'detach_parent_entry_from_child',
+				'context'  => 'side',
+			);
+		}
+	}
+
+	return $meta_boxes;
+}, 10, 3 );
+
+// Callback method
+function detach_parent_entry_from_child( $args ) {
+	$action = 'gpnf_detach_parent_entry';
+	$html   = sprintf( '<input type="submit" value="%s" class="button" onclick="jQuery(\'#action\').val(\'%s\');" />', 'Detach from Parent', $action );
+
+	echo $html;
+}