Initial refactoring work

app/Models/Invoice.php

@@ -0,0 +1,68 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Invoice extends Model
+{
+	protected $table = 'ab_invoice';
+	protected $dates = ['due_date'];
+	protected $with = ['invoiceitems.taxes','account.country.currency','paymentitems'];
+
+	private $_total = 0;
+
+	public function account()
+	{
+		return $this->belongsTo(\App\User::class);
+	}
+
+	public function invoiceitems()
+	{
+		return $this->hasMany(InvoiceItem::class);
+	}
+
+	public function paymentitems()
+	{
+		return $this->hasMany(PaymentItem::class);
+	}
+
+	public function getDueAttribute()
+	{
+		return $this->currency()->round($this->total - $this->paid);
+	}
+
+	public function getDateDueAttribute()
+	{
+		return $this->due_date->format('Y-m-d');
+	}
+
+	public function getInvoiceNumberAttribute()
+	{
+		return sprintf('%02s-%04s-%04s',$this->site_id,$this->account_id,$this->id);
+	}
+
+	public function getPaidAttribute()
+	{
+		return $this->currency()->round($this->paymentitems->sum('alloc_amt'));
+	}
+
+	public function getTotalAttribute()
+	{
+		if (! $this->_total)
+		{
+			foreach ($this->invoiceitems as $o)
+			{
+				//if ($o->active)
+					$this->_total += $this->currency()->round($o->total);
+			}
+		}
+
+		return $this->_total;
+	}
+
+	public function currency()
+	{
+		return $this->account->country->currency;
+	}
+}