Create gpi-gpnf-exclude-child-entries-when-attached-to-a-partial-entry.php

Author: spivurno

experimental/gpi-gpnf-exclude-child-entries-when-attached-to-a-partial-entry.php

@@ -0,0 +1,34 @@
+<?php
+/**
+ * Gravity Perks // Inventory + Nested Forms // Exclude Child Entries of Partial Entry Parents from Inventory
+ * https://gravitywiz.com/documentation/gravity-forms-nested-forms/
+ *
+ * WIP: This provides very basic support for excluding child entries attached to a partial entry parent 
+ * from inventory limits. 
+ * 
+ * @todo
+ * 
+ * 1. Apply to all child forms without needing to specify a form ID.
+ * 2. Count child entries attached to the current partial entry. 
+ *    Support has been implemented when traversing between pages; however, the Nested Forms markup AJAX request 
+ *    is not aware of the current partial entry ID. Will need to pass this via the `gpnf_session_script_data` 
+ *    filter so it can be accessed 
+ */
+// Update "123" to your child form ID.
+add_filter( 'gpi_query_123', function( $query, $field ) {
+	global $wpdb;
+	if ( class_exists( 'GF_Partial_Entries' ) ) {
+		if ( rgpost( 'partial_entry_id' ) ) {
+			$meta_value_clause = $wpdb->prepare( "AND meta_value != %s", rgpost( 'partial_entry_id' ) );
+		}
+		$query['where'] .= "
+			AND e.id IN (
+				SELECT entry_id FROM {$wpdb->prefix}gf_entry_meta
+				WHERE meta_key = 'gpnf_entry_parent'
+				AND meta_value NOT IN(
+					SELECT entry_id FROM {$wpdb->prefix}gf_entry_meta WHERE meta_key = 'partial_entry_id' $meta_value_clause
+				)
+			)";
+	}
+	return $query;
+}, 10, 2 );