If an array field has ignore_empty: true, only save options with a value

CHANGELOG.md

@@ -3,6 +3,7 @@
 
 1. [](#improved)
     * Added alias `selfupdate` to the `self-upgrade` `bin/gpm` CLI command
+    * Add `ignore_empty` property to be used on array fields, if positive only save options with a value
 
 # v1.1.9-rc.2
 ## 11/26/2016

system/src/Grav/Common/Data/Validation.php

@@ -9,6 +9,7 @@
 namespace Grav\Common\Data;
 
 use Grav\Common\Grav;
+use Grav\Common\Utils;
 use Symfony\Component\Yaml\Exception\ParseException;
 use Symfony\Component\Yaml\Parser;
 use Symfony\Component\Yaml\Yaml;
@@ -569,6 +570,7 @@ class Validation
             return null;
         }
 
+
         if ($options) {
             $useKey = isset($field['use']) && $field['use'] == 'keys';
             foreach ($values as $key => $value) {
@@ -586,6 +588,18 @@ class Validation
             }
         }
 
+        if (isset($field['ignore_empty']) && Utils::isPositive($field['ignore_empty'])) {
+            foreach ($values as $key => $value) {
+                foreach ($value as $inner_key => $inner_value) {
+                    if ($inner_value == '') {
+                        unset($value[$inner_key]);
+                    }
+                }
+
+                $values[$key] = $value;
+            }
+        }
+
         return $values;
     }