Add discount per item feature to the bills

app/Models/Purchase/BillItem.php

@@ -18,7 +18,18 @@ class BillItem extends Model
      *
      * @var array
      */
-    protected $fillable = ['company_id', 'bill_id', 'item_id', 'name', 'quantity', 'price', 'total', 'tax'];
+    protected $fillable = [
+        'company_id',
+        'bill_id',
+        'item_id',
+        'name',
+        'quantity',
+        'price',
+        'total',
+        'tax',
+        'discount_rate',
+        'discount_type',
+    ];
 
     /**
      * Clonable relationships.
@@ -84,6 +95,22 @@ class BillItem extends Model
         $this->attributes['tax'] = (double) $value;
     }
 
+    /**
+     * Get the formatted discount.
+     *
+     * @return string
+     */
+    public function getDiscountRateAttribute($value)
+    {
+        if (setting('localisation.percent_position', 'after') === 'after') {
+            $text = ($this->discount_type === 'normal') ? $value . '%' : $value;
+        } else {
+            $text = ($this->discount_type === 'normal') ? '%' . $value : $value;
+        }
+
+        return $text;
+    }
+
     /**
      * Convert tax to Array.
      *

app/Models/Sale/InvoiceItemDiscount.php

@@ -1,42 +0,0 @@
-<?php
-
-namespace App\Models\Sale;
-
-use App\Abstracts\Model;
-use App\Traits\Currencies;
-use Znck\Eloquent\Traits\BelongsToThrough;
-
-class InvoiceItemDiscount extends Model
-{
-    use Currencies, BelongsToThrough;
-
-    protected $table = 'invoice_item_discounts';
-
-    /**
-     * Attributes that should be mass-assignable.
-     *
-     * @var array
-     */
-    protected $fillable = ['company_id', 'invoice_id', 'invoice_item_id', 'rate', 'type', 'name', 'amount'];
-
-    public function invoice()
-    {
-        return $this->belongsTo('App\Models\Sale\Invoice');
-    }
-
-    public function item()
-    {
-        return $this->belongsToThrough('App\Models\Common\Item', 'App\Models\Sale\InvoiceItem', 'invoice_item_id')->withDefault(['name' => trans('general.na')]);
-    }
-
-    /**
-     * Convert rate to double.
-     *
-     * @param  string  $value
-     * @return void
-     */
-    public function setRateAttribute($value)
-    {
-        $this->attributes['rate'] = (double) $value;
-    }
-}