first commit

app/Actions/Titles/HasCreditableRelation.php

@@ -0,0 +1,75 @@
+<?php
+
+namespace App\Actions\Titles;
+
+use App\Models\Person;
+use DB;
+use Illuminate\Database\Eloquent\Relations\BelongsToMany;
+
+trait HasCreditableRelation
+{
+    public function credits(): BelongsToMany
+    {
+        $query = $this->morphToMany(Person::class, 'creditable')->withPivot([
+            'id',
+            'job',
+            'department',
+            'order',
+            'character',
+        ]);
+
+        $query = $query->select(['people.id', 'name', 'poster']);
+
+        // order by department first, so we always get director,
+        // writers and creators, even if limit is applied to this query
+        $prefix = DB::getTablePrefix();
+        return $query
+            ->orderBy(
+                DB::raw(
+                    "FIELD(department, 'directing', 'creators', 'writing', 'actors')",
+                ),
+            )
+            // should be "desc" and not "asc" because "minus" is added which will reverse order
+            ->orderBy(DB::raw("-{$prefix}creditables.order"), 'desc');
+    }
+
+    public function updateCredit(int $pivotId, array $payload): void
+    {
+        // lowercase payload
+        $payload = collect($payload)
+            ->mapWithKeys(function ($value, $key) {
+                if ($key === 'department' || $key === 'job') {
+                    $value = strtolower($value);
+                }
+                return [$key => $value];
+            })
+            ->toArray();
+
+        $this->credits()
+            ->newPivotQuery()
+            ->where('id', $pivotId)
+            ->update($payload);
+    }
+
+    public function createCredit(array $payload): void
+    {
+        // lowercase payload
+        $payload = collect($payload)
+            ->mapWithKeys(function ($value, $key) {
+                if ($key === 'department' || $key === 'job') {
+                    $value = strtolower($value);
+                }
+                return [$key => $value];
+            })
+            ->toArray();
+
+        if ($payload['department'] === 'actors') {
+            $payload['order'] =
+                $this->credits()
+                    ->wherePivot('department', 'actors')
+                    ->count() + 1;
+        }
+
+        $this->credits()->attach($payload['person_id'], $payload);
+    }
+}