Invoice create invocie item multible tax

app/Models/Income/Invoice.php

@@ -83,6 +83,11 @@ class Invoice extends Model
         return $this->hasMany('App\Models\Income\InvoiceItem');
     }
 
+    public function itemTaxes()
+    {
+        return $this->hasMany('App\Models\Income\InvoiceItemTax');
+    }
+
     public function histories()
     {
         return $this->hasMany('App\Models\Income\InvoiceHistory');

app/Models/Income/InvoiceItemTax.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace App\Models\Income;
+
+use App\Models\Model;
+use App\Traits\Currencies;
+
+class InvoiceItemTax extends Model
+{
+
+    use Currencies;
+
+    protected $table = 'invoice_item_taxes';
+
+    /**
+     * Attributes that should be mass-assignable.
+     *
+     * @var array
+     */
+    protected $fillable = ['company_id', 'invoice_id', 'invoice_item_id', 'tax_id', 'name', 'amount'];
+
+    public function invoice()
+    {
+        return $this->belongsTo('App\Models\Income\Invoice');
+    }
+
+    public function item()
+    {
+        return $this->belongsTo('App\Models\Common\Item');
+    }
+
+    public function tax()
+    {
+        return $this->belongsTo('App\Models\Setting\Tax');
+    }
+
+    /**
+     * Convert amount to double.
+     *
+     * @param  string  $value
+     * @return void
+     */
+    public function setAmountAttribute($value)
+    {
+        $this->attributes['amount'] = (double) $value;
+    }
+}