From 0845b5e28a2e08dee8a6326f8b6ba6511d3ee9d2 Mon Sep 17 00:00:00 2001
From: Djamil Legato <djamil@djamil.it>
Date: Wed, 29 Jul 2015 20:43:13 -0700
Subject: [PATCH] Added support for select multiple attribute in array filter

---
 system/blueprints/pages/default.yaml       | 1 +
 system/src/Grav/Common/Data/Validation.php | 7 +++++++
 2 files changed, 8 insertions(+)

diff --git a/system/blueprints/pages/default.yaml b/system/blueprints/pages/default.yaml
index bb3fec913..97a4a883a 100644
--- a/system/blueprints/pages/default.yaml
+++ b/system/blueprints/pages/default.yaml
@@ -126,6 +126,7 @@ form:
                 header.taxonomy:
                   type: taxonomy
                   label: Taxonomy
+                  multiple: true
                   validate:
                     type: array
 
diff --git a/system/src/Grav/Common/Data/Validation.php b/system/src/Grav/Common/Data/Validation.php
index d2b7066db..30db908f7 100644
--- a/system/src/Grav/Common/Data/Validation.php
+++ b/system/src/Grav/Common/Data/Validation.php
@@ -492,6 +492,7 @@ class Validation
     {
         $values = (array) $value;
         $options = isset($field['options']) ? array_keys($field['options']) : array();
+        $multi = isset($field['multiple']) ? $field['multiple'] : false;
 
         if ($options) {
             $useKey = isset($field['use']) && $field['use'] == 'keys';
@@ -500,6 +501,12 @@ class Validation
             }
         }
 
+        if ($multi) {
+            foreach ($values as $key => $value) {
+                $values[$key] = explode(',', $value[0]);
+            }
+        }
+
         return $values;
     }