From 8166c5ad6afdf3e25a4ffae9f76f968f87982cf3 Mon Sep 17 00:00:00 2001
From: Samuel Georges <sam@daftspunk.com>
Date: Tue, 4 Aug 2015 20:03:24 +1000
Subject: [PATCH] Add encodeArrayValue | decodeArrayValue helpers

---
 modules/backend/models/ExportModel.php | 20 ++++++++++++++++++++
 modules/backend/models/ImportModel.php | 18 ++++++++++++++++++
 2 files changed, 38 insertions(+)

diff --git a/modules/backend/models/ExportModel.php b/modules/backend/models/ExportModel.php
index cd496dfaa..84b0d43d8 100644
--- a/modules/backend/models/ExportModel.php
+++ b/modules/backend/models/ExportModel.php
@@ -183,4 +183,24 @@ abstract class ExportModel extends Model
         return $results;
     }
 
+    /**
+     * Implodes a single dimension array using pipes (|)
+     * Multi dimensional arrays are not allowed.
+     * @return string
+     */
+    protected function encodeArrayValue($data, $delimeter = '|')
+    {
+        $newData = [];
+        foreach ($data as $value) {
+            if (is_array($value)) {
+                $newData[] = 'Array';
+            }
+            else {
+                $newData[] = str_replace($delimeter, '\\'.$delimeter, $value);
+            }
+        }
+
+        return implode($delimeter, $newData);
+    }
+
 }
\ No newline at end of file
diff --git a/modules/backend/models/ImportModel.php b/modules/backend/models/ImportModel.php
index f3659a7a4..253e5485d 100644
--- a/modules/backend/models/ImportModel.php
+++ b/modules/backend/models/ImportModel.php
@@ -129,6 +129,24 @@ abstract class ImportModel extends Model
         return $newRow;
     }
 
+    /**
+     * Explodes a string using pipes (|) to a single dimension array
+     * @return array
+     */
+    protected function decodeArrayValue($value, $delimeter = '|')
+    {
+        if (strpos($value, $delimeter) === false) return $value;
+
+        $data = preg_split('~(?<!\\\)' . preg_quote($delimeter, '~') . '~', $value);
+        $newData = [];
+
+        foreach ($data as $_value) {
+            $newData[] = str_replace('\\'.$delimeter, $delimeter, $_value);
+        }
+
+        return $newData;
+    }
+
     /**
      * Returns an attached imported file local path, if available.
      * @return string