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Modules/Tax/Entities/TaxRate.php

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+<?php
+
+namespace Modules\Tax\Entities;
+
+use Modules\Support\Money;
+use Modules\Order\Entities\Order;
+use Modules\Support\Eloquent\Model;
+use Modules\Order\Entities\OrderTax;
+use Modules\Support\Eloquent\Translatable;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class TaxRate extends Model
+{
+    use Translatable, SoftDeletes;
+
+    /**
+     * The relations to eager load on every query.
+     *
+     * @var array
+     */
+    protected $with = ['translations'];
+
+    /**
+     * The attributes that are mass assignable.
+     *
+     * @var array
+     */
+    protected $fillable = ['country', 'state', 'city', 'zip', 'rate', 'position'];
+
+    /**
+     * The attributes that should be mutated to dates.
+     *
+     * @var array
+     */
+    protected $dates = ['start_date', 'end_date', 'deleted_at'];
+
+    /**
+     * The attributes that are translatable.
+     *
+     * @var array
+     */
+    public $translatedAttributes = ['name'];
+
+    public function orders()
+    {
+        return $this->belongsToMany(Order::class, 'order_taxes')
+            ->using(OrderTax::class)
+            ->as('order_tax')
+            ->withPivot('amount');
+    }
+
+    public function scopeFindByAddress($query, $address)
+    {
+        $address = $this->mergeDefaultAddress($address);
+
+        $query->whereIn('country', [$address['country'], '*'])
+            ->whereIn('state', [$address['state'], '*'])
+            ->whereIn('city', [$address['city'], '*'])
+            ->whereIn('zip', [$address['zip'], '*'])
+            ->orderByRaw($this->rawOrderClause(), [
+                $address['country'],
+                $address['state'],
+                $address['city'],
+                $address['zip'],
+            ])
+            ->orderBy('position');
+    }
+
+    private function mergeDefaultAddress($address)
+    {
+        return $address += ['country' => null, 'state' => null, 'city' => null, 'zip' => null];
+    }
+
+    private function rawOrderClause()
+    {
+        return "(
+            CASE WHEN country = ? THEN 1 ELSE 0 END +
+            CASE WHEN state = ? THEN 1 ELSE 0 END +
+            CASE WHEN city = ? THEN 1 ELSE 0 END +
+            CASE WHEN zip = ? THEN 1 ELSE 0 END
+        ) DESC";
+    }
+
+    public function getCountryAttribute($country)
+    {
+        return $country === '*' ? null : $country;
+    }
+
+    public function setCountryAttribute($country)
+    {
+        $this->attributes['country'] = $country ?: '*';
+    }
+
+    public function getStateAttribute($state)
+    {
+        return $state === '*' ? null : $state;
+    }
+
+    public function setStateAttribute($state)
+    {
+        $this->attributes['state'] = $state ?: '*';
+    }
+
+    public function getCityAttribute($city)
+    {
+        return $city === '*' ? null : $city;
+    }
+
+    public function setCityAttribute($city)
+    {
+        $this->attributes['city'] = $city ?: '*';
+    }
+
+    public function getZipAttribute($zip)
+    {
+        return $zip === '*' ? null : $zip;
+    }
+
+    public function setZipAttribute($zip)
+    {
+        $this->attributes['zip'] = $zip ?: '*';
+    }
+
+    public function getTotalAttribute($total)
+    {
+        return Money::inDefaultCurrency($total);
+    }
+}