lots of updates + refactoring

app/Models/StandalonePostgresql.php

@@ -0,0 +1,50 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+use App\Models\EnvironmentVariable;
+use App\Models\LocalPersistentVolume;
+
+class StandalonePostgresql extends BaseModel
+{
+    use HasFactory;
+    protected static function booted()
+    {
+        static::created(function ($database) {
+            LocalPersistentVolume::create([
+                'name' => 'postgres-data-' . $database->uuid,
+                'mount_path' => '/var/lib/postgresql/data',
+                'host_path' => null,
+                'resource_id' => $database->id,
+                'resource_type' => $database->getMorphClass(),
+                'is_readonly' => true
+            ]);
+        });
+    }
+    protected $guarded = [];
+    protected $casts = [
+        'postgres_password' => 'encrypted',
+    ];
+    public function type() {
+        return 'standalone-postgresql';
+    }
+    public function environment()
+    {
+        return $this->belongsTo(Environment::class);
+    }
+    public function destination()
+    {
+        return $this->morphTo();
+    }
+      public function environment_variables(): HasMany
+    {
+        return $this->hasMany(EnvironmentVariable::class);
+    }
+
+    public function persistentStorages()
+    {
+        return $this->morphMany(LocalPersistentVolume::class, 'resource');
+    }
+}