add nova

nova/src/ResolvesCards.php

@@ -0,0 +1,60 @@
+<?php
+
+namespace Laravel\Nova;
+
+use Laravel\Nova\Http\Requests\NovaRequest;
+
+trait ResolvesCards
+{
+    /**
+     * Get the cards that are available for the given request.
+     *
+     * @param  \Laravel\Nova\Http\Requests\NovaRequest  $request
+     * @return \Illuminate\Support\Collection<int, \Laravel\Nova\Metrics\Metric|\Laravel\Nova\Card>
+     */
+    public function availableCards(NovaRequest $request)
+    {
+        return $this->resolveCards($request)
+            ->reject(function ($card) {
+                return $card->onlyOnDetail;
+            })
+        ->filter->authorize($request)->values();
+    }
+
+    /**
+     * Get the cards that are available for the given request.
+     *
+     * @param  \Laravel\Nova\Http\Requests\NovaRequest  $request
+     * @return \Illuminate\Support\Collection<int, \Laravel\Nova\Metrics\Metric|\Laravel\Nova\Card>
+     */
+    public function availableCardsForDetail(NovaRequest $request)
+    {
+        return $this->resolveCards($request)
+            ->filter(function ($card) {
+                return $card->onlyOnDetail;
+            })
+            ->filter->authorize($request)->values();
+    }
+
+    /**
+     * Get the cards for the given request.
+     *
+     * @param  \Laravel\Nova\Http\Requests\NovaRequest  $request
+     * @return \Illuminate\Support\Collection<int, \Laravel\Nova\Metrics\Metric|\Laravel\Nova\Card>
+     */
+    public function resolveCards(NovaRequest $request)
+    {
+        return collect(array_values($this->filter($this->cards($request))));
+    }
+
+    /**
+     * Get the cards available on the entity.
+     *
+     * @param  \Laravel\Nova\Http\Requests\NovaRequest  $request
+     * @return array
+     */
+    public function cards(NovaRequest $request)
+    {
+        return [];
+    }
+}