gst

app/Models/Invoice.php

@@ -9,34 +9,41 @@ class Invoice extends Model
 {
     use HasFactory;
 
-    protected $fillable = [
-        'order_id',
-        'customer_id',
-        'mark_no',
+ protected $fillable = [
+    'order_id',
+    'customer_id',
+    'mark_no',
 
-        'invoice_number',
-        'invoice_date',
-        'due_date',
+    'invoice_number',
+    'invoice_date',
+    'due_date',
 
-        'payment_method',
-        'reference_no',
-        'status',
+    'payment_method',
+    'reference_no',
+    'status',
 
-        'final_amount',
-        'gst_percent',
-        'gst_amount',
-        'final_amount_with_gst',
+    'final_amount', // without tax
 
-        'customer_name',
-        'company_name',
-        'customer_email',
-        'customer_mobile',
-        'customer_address',
-        'pincode',
+    'tax_type',     // gst / igst
+    'gst_percent',  // only used for gst UI input
+    'cgst_percent',
+    'sgst_percent',
+    'igst_percent',
+
+    'gst_amount',   // total tax amount
+    'final_amount_with_gst',
+
+    'customer_name',
+    'company_name',
+    'customer_email',
+    'customer_mobile',
+    'customer_address',
+    'pincode',
+
+    'pdf_path',
+    'notes',
+];
 
-        'pdf_path',
-        'notes',
-    ];
 
     /****************************
      * Relationships
@@ -74,4 +81,16 @@ class Invoice extends Model
     {
         return $this->status === 'pending' && now()->gt($this->due_date);
     }
+
+    public function getShipment()
+    {
+        return $this->order?->shipments?->first();
+    }
+
+    public function installments()
+{
+    return $this->hasMany(InvoiceInstallment::class);
+}
+
+
 }

app/Models/InvoiceInstallment.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class InvoiceInstallment extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'invoice_id',
+        'installment_date',
+        'payment_method',
+        'reference_no',
+        'amount',
+    ];
+
+    public function invoice()
+    {
+        return $this->belongsTo(Invoice::class);
+    }
+}

app/Models/Order.php

@@ -46,4 +46,15 @@ class Order extends Model
                     ->withTimestamps();
     }
 
+    public function shipmentItems()
+    {
+        return $this->hasMany(\App\Models\ShipmentItem::class, 'order_id', 'id');
+    }
+
+    public function shipments()
+    {
+        return $this->belongsToMany(\App\Models\Shipment::class, 'shipment_items', 'order_id', 'shipment_id');
+    }
+
+
 }