Using datatables to render home dashboard

app/Models/Invoice.php

@@ -8,7 +8,22 @@ class Invoice extends Model
 {
 	protected $table = 'ab_invoice';
 	protected $dates = ['due_date'];
-	protected $with = ['invoiceitems.taxes','account.country.currency','paymentitems'];
+	protected $with = ['items.taxes','account.country.currency','paymentitems'];
+
+	protected $appends = [
+		'date_due',
+		'due',
+		'invoice_id_url',
+		'total',
+	];
+
+	protected $visible = [
+		'date_due',
+		'due',
+		'id',
+		'invoice_id_url',
+		'total',
+	];
 
 	private $_total = 0;
 
@@ -17,7 +32,7 @@ class Invoice extends Model
 		return $this->belongsTo(\App\User::class);
 	}
 
-	public function invoiceitems()
+	public function items()
 	{
 		return $this->hasMany(InvoiceItem::class);
 	}
@@ -29,7 +44,7 @@ class Invoice extends Model
 
 	public function getDueAttribute()
 	{
-		return $this->currency()->round($this->total - $this->paid);
+		return sprintf('%3.'.$this->currency()->rounding.'f',$this->total - $this->paid);
 	}
 
 	public function getDateDueAttribute()
@@ -37,11 +52,16 @@ class Invoice extends Model
 		return $this->due_date->format('Y-m-d');
 	}
 
-	public function getInvoiceNumberAttribute()
+	public function getInvoiceIdAttribute()
 	{
 		return sprintf('%02s-%04s-%04s',$this->site_id,$this->account_id,$this->id);
 	}
 
+	public function getInvoiceIdUrlAttribute()
+	{
+		return sprintf('<a href="/u/invoice/view/%s">%s</a>',$this->id,$this->invoice_id);
+	}
+
 	public function getPaidAttribute()
 	{
 		return $this->currency()->round($this->paymentitems->sum('alloc_amt'));
@@ -51,14 +71,14 @@ class Invoice extends Model
 	{
 		if (! $this->_total)
 		{
-			foreach ($this->invoiceitems as $o)
+			foreach ($this->items as $o)
 			{
-				//if ($o->active)
+				if ($o->active)
 					$this->_total += $this->currency()->round($o->total);
 			}
 		}
 
-		return $this->_total;
+		return sprintf('%3.'.$this->currency()->rounding.'f',$this->_total);
 	}
 
 	public function currency()