Merge pull request #53 from mortenscheel/patch-2

Add HasTelescopeTags trait

src/Concerns/HasTelescopeTags

@@ -0,0 +1,47 @@
+<?php
+
+namespace Lorisleiva\Actions\Concerns;
+
+/**
+ * Trait HasTelescopeTags
+ * @package Lorisleiva\Actions\Concerns
+ * @mixin \Lorisleiva\Actions\Action
+ */
+trait HasTelescopeTags
+{
+    /**
+     * Get a list of Telescope tags for every Eloquent model included in the Action attributes
+     * Tags for loaded relationships are included recursively
+     * @param array|null $items
+     * @return array
+     */
+    public function tags(array $items = null): array
+    {
+        if ($items === null) {
+            $items = $this->all();
+        }
+        return collect($items)
+            ->map(function($item) {
+                if ($item instanceof \Illuminate\Database\Eloquent\Model) {
+                    $model_tag = sprintf('%s:%s', \get_class($item), $item->getKey());
+                    $relationship_tags = $this->tags($item->getRelations());
+                    return array_merge(
+                        [$model_tag],
+                        [$relationship_tags]
+                    );
+                }
+                if (\is_iterable($item)) {
+                    if ($item instanceof \Illuminate\Support\Enumerable) {
+                        $item = $item->all();
+                    }
+                    return $this->tags($item);
+                }
+                return null;
+            })
+            ->flatten() // Convert nested tags to single dimensional array
+            ->filter()  // Remove null values
+            ->unique()  // Models might occur more than once
+            ->values()  // Force to non-associative array
+            ->toArray();
+    }
+}