ENHANCEMENT SlideType default value task (#158)

* ENHANCEMENT SlideType default value task

BUGFIX check if LinkLabel isset in SlideLinkTask

* UPDATE phpcs fix

src/Task/DefaultSlideTypeTask.php

@@ -0,0 +1,72 @@
+<?php
+
+namespace Dynamic\Flexslider\Task;
+
+use Dynamic\FlexSlider\Model\SlideImage;
+use SilverStripe\Dev\BuildTask;
+use SilverStripe\ORM\DB;
+
+/**
+ * Class DefaultSlideTypeTask
+ * @package Dynamic\Flexslider\Task
+ */
+class DefaultSlideTypeTask extends BuildTask
+{
+    /**
+     * @var string
+     */
+    private static $segment = 'default-slide-type-task';
+
+    /**
+     * @var string
+     */
+    protected $title = 'Flexslider - Default Slide Type Task';
+
+    /**
+     * @param \SilverStripe\Control\HTTPRequest $request
+     */
+    public function run($request)
+    {
+        $this->setDefaults();
+    }
+
+    /**
+     *
+     */
+    protected function setDefaults()
+    {
+        $default = SlideImage::singleton()->config()->get('defaults');
+
+        if (isset($default['SlideType'])) {
+            $baseTable = SlideImage::singleton()->baseTable();
+
+            $tables = [
+                $baseTable,
+                "{$baseTable}_Versions",
+                "{$baseTable}_Live",
+            ];
+
+            foreach ($tables as $table) {
+                $query = DB::query("SELECT * FROM \"{$table}\" WHERE \"SlideType\" IS NULL");
+
+                foreach ($this->yieldSingle($query) as $record) {
+                    DB::prepared_query(
+                        "UPDATE \"{$table}\" SET \"SlideType\" = ? WHERE \"ID\" = ?",
+                        [$default['SlideType'], $record['ID']]
+                    );
+                }
+            }
+        }
+    }
+
+    /**
+     * @param $list
+     * @return \Generator
+     */
+    protected function yieldSingle($list)
+    {
+        foreach ($list as $item) {
+            yield $item;
+        }
+    }
+}

src/Task/SlideLinkTask.php

@@ -54,7 +54,7 @@ protected function migrateLinks()
         foreach ($tables as $table) {
             foreach ($this->yieldSingle(DB::query("SELECT * FROM \"{$table}\"")) as $record) {
                 $linkID = $record['PageLinkID'];
-                $linkLabel = $record['LinkLabel'];
+                $linkLabel = isset($record['LinkLabel']) ? $record['LinkLabel'] : null;
 
                 $slideLink = $this->findOrMakeLink($linkID, $linkLabel);