Add models

app/Models/City.php

@@ -0,0 +1,48 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class City extends Model
+{
+
+    /**
+     * The attributes that are mass assignable.
+     *
+     * @var array
+     */
+    protected $fillable = [
+        'name',
+    ];
+
+    /**
+     * The attributes that should be hidden for arrays.
+     *
+     * @var array
+     */
+    protected $hidden = [
+        'created_at',
+        'updated_at',
+    ];
+
+    /**
+     * The attributes that should be casted to native types.
+     *
+     * @var array
+     */
+    protected $casts = [
+        'state_id' => 'integer',
+    ];
+
+    /**
+     * Get the state that owns the city.
+     */
+    public function state()
+    {
+
+        return $this->belongsTo(State::class, 'state_id');
+
+    }
+
+}

app/Models/State.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class State extends Model
+{
+
+    /**
+     * The attributes that are mass assignable.
+     *
+     * @var array
+     */
+    protected $fillable = [
+        'name',
+        'abbr',
+    ];
+
+    /**
+     * The attributes that should be hidden for arrays.
+     *
+     * @var array
+     */
+    protected $hidden = [
+        'created_at',
+        'updated_at',
+    ];
+
+    /**
+     * Get all of the cities for the state.
+     */
+    public function city()
+    {
+
+        return $this->hasMany(City::class);
+
+    }
+
+}