first commit

app/Models/Trip.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\BelongsToMany;
+
+class Trip extends Model
+{
+    protected $fillable = [
+        'user_id',
+        'name',
+        'description',
+    ];
+
+    /**
+     * Get the user that owns this trip
+     */
+    public function user(): BelongsTo
+    {
+        return $this->belongsTo(User::class);
+    }
+
+    /**
+     * Get all cities in this trip
+     */
+    public function cities(): BelongsToMany
+    {
+        return $this->belongsToMany(City::class, 'city_trip')
+            ->withPivot('order')
+            ->withTimestamps()
+            ->orderByPivot('order');
+    }
+}