Paving the way for Metadata access via Eloquent.

Make the id the primary key on the filter_metadata table.
Add unique constraint to disk, path columns.
Add BackingData cast for filer_metadata->backing_data DB column.
Update the Database repository to format the timestamp correctly.
Add Uuid trait to support creation of Metadata through the Eloquent model.
Update the base TestCase to support config changes.

database/migrations/2021_04_08_105954_create_filer_tables.php

@@ -23,10 +23,10 @@ public function up()
             $table->enum('visibility', ['public', 'private'])->comment('Visibiilty of the file.');
             $table->json('backing_data')->comment('The information about where the file is stored and how.');
             $table->timestamp('timestamp')->useCurrent();
-            $table->primary([
+            $table->unique([
                 'disk', 'path',
             ]);
-            $table->unique('id');
+            $table->primary('id');
         });
     }
 

src/Casts/BackingData.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace Nvahalik\Filer\Casts;
+
+use Illuminate\Contracts\Database\Eloquent\CastsAttributes;
+
+class BackingData implements CastsAttributes
+{
+
+    public function get($model, string $key, $value, array $attributes)
+    {
+        return \Nvahalik\Filer\BackingData::unserialize($value);
+    }
+
+    public function set($model, string $key, $value, array $attributes)
+    {
+        return $value->toJson();
+    }
+}

src/MetadataRepository/Database.php

@@ -2,8 +2,10 @@
 
 namespace Nvahalik\Filer\MetadataRepository;
 
+use Carbon\Carbon;
 use Illuminate\Support\Arr;
 use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Str;
 use Nvahalik\Filer\BackingData;
 use Nvahalik\Filer\Contracts\MetadataRepository;
 use Nvahalik\Filer\Metadata;
@@ -89,6 +91,7 @@ public function listContents(string $directory = '', bool $recursive = false)
                     ->where('path', 'NOT LIKE', "$directory%/%");
             })->cursor()
             ->map(function ($record) {
+                $record->timestamp = Carbon::parse($record->timestamp)->format('U');
                 $record->backing_data = BackingData::unserialize($record->backing_data);
 
                 return $record;
@@ -115,11 +118,12 @@ public function record(Metadata $metadata)
 
         $updates = Arr::where(array_keys($updatePayload), fn ($a) => $a !== 'path');
 
+        $updatePayload['timestamp'] = Carbon::parse($updatePayload['timestamp'])->toDateTimeString();
         $updatePayload['disk'] = $this->storageId;
-        $updatePayload['id'] = $updatePayload['id'] ?? Uuid::uuid4();
+        $updatePayload['id'] = $updatePayload['id'] ?? Str::uuid();
 
         $this->newQuery()
-            ->upsert($updatePayload, ['path', 'disk'], $updates);
+            ->upsert($updatePayload, ['id'], $updates);
     }
 
     public function delete(string $path)

src/Models/Metadata.php

@@ -0,0 +1,57 @@
+<?php
+
+namespace Nvahalik\Filer\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Nvahalik\Filer\Casts\BackingData;
+use Nvahalik\Filer\Traits\Uuid;
+
+class Metadata extends Model
+{
+    use Uuid;
+
+    protected $table = 'filer_metadata';
+
+    /**
+     * Indicates if the IDs are auto-incrementing.
+     *
+     * @var bool
+     */
+    public $incrementing = false;
+
+    /**
+     * The "type" of the auto-incrementing ID.
+     *
+     * @var string
+     */
+    protected $keyType = 'uuid';
+
+    protected $fillable = [
+        'id',
+        'disk',
+        'path',
+        'size',
+        'mimetype',
+        'etag',
+        'visibility',
+        'backing_data',
+        'timestamp',
+    ];
+
+    protected $casts = [
+        'size' => 'integer',
+        'backing_data' => BackingData::class
+    ];
+
+    protected $dates = [
+        'timestamp',
+    ];
+
+    public function __construct(array $attributes = [])
+    {
+        parent::__construct($attributes);
+
+        $this->setConnection(config('filer.database.connection'));
+    }
+
+}

src/Traits/Uuid.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace Nvahalik\Filer\Traits;
+
+use Illuminate\Support\Str;
+
+trait Uuid
+{
+    protected static function boot()
+    {
+        parent::boot();
+
+        static::creating(function ($model) {
+            $model->id = (string) Str::uuid();
+        });
+    }
+}

tests/TestCase.php

@@ -32,6 +32,9 @@ protected function defineEnvironment($app)
         // Setup default database to use sqlite :memory:
         $app['config']->set('database.default', 'testbench');
 
+        $app['config']->set('filer.metadata', 'database');
+        $app['config']->set('filer.database.connection', 'testbench');
+
         $app['config']->set('database.connections.testbench', [
             'driver'   => 'sqlite',
             'database' => ':memory:',