Merge Invoice and Bill into Document

app/Models/Document/DocumentItemTax.php

@@ -0,0 +1,58 @@
+<?php
+
+namespace App\Models\Document;
+
+use App\Abstracts\Model;
+use App\Traits\Currencies;
+use Illuminate\Database\Eloquent\Builder;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Znck\Eloquent\Relations\BelongsToThrough as BelongsToThroughRelation;
+use Znck\Eloquent\Traits\BelongsToThrough;
+
+class DocumentItemTax extends Model
+{
+    use Currencies, BelongsToThrough;
+
+    protected $table = 'document_item_taxes';
+
+    protected $fillable = ['company_id', 'type', 'document_id', 'document_item_id', 'tax_id', 'name', 'amount'];
+
+    /**
+     * The attributes that should be cast.
+     *
+     * @var array
+     */
+    protected $casts = [
+        'amount' => 'double',
+    ];
+
+    public function document()
+    {
+        return $this->belongsTo('App\Models\Document\Document');
+    }
+
+    public function item()
+    {
+        return $this->belongsToThrough('App\Models\Common\Item', 'App\Models\Document\DocumentItem', 'document_item_id')->withDefault(['name' => trans('general.na')]);
+    }
+
+    public function tax()
+    {
+        return $this->belongsTo('App\Models\Setting\Tax')->withDefault(['name' => trans('general.na'), 'rate' => 0]);
+    }
+
+    public function scopeType(Builder $query, string $type)
+    {
+        return $query->where($this->table . '.type', '=', $type);
+    }
+
+    public function scopeInvoice(Builder $query)
+    {
+        return $query->where($this->table . '.type', '=', Document::INVOICE_TYPE);
+    }
+
+    public function scopeBill(Builder $query)
+    {
+        return $query->where($this->table . '.type', '=', Document::BILL_TYPE);
+    }
+}