added endpoint to get an invoice's items only

1 files changed, 15 insertions, 0 deletions

diff --git a/invoice/service.go b/invoice/service.go
index 91e2707..91579c6 100644
--- a/invoice/service.go
+++ b/invoice/service.go
@@ -81,6 +81,21 @@ func getInvoices(invoices *[]Invoice, userId uint, isDraft bool) error {
 	return nil
 }
 
+func getInvoiceItems(items *[]InvoiceItem, invoiceId uint) error {
+	res := db.Where("invoice_id = ?", invoiceId).Find(&items)
+
+	// TODO: handle potential errors
+	if res.Error != nil {
+		return res.Error
+	}
+
+	if res.RowsAffected == 0 {
+		return e.ErrEmptyResponse
+	}
+
+	return nil
+}
+
 // TODO: route to only get the invouce's items
 
 func (i *Invoice) upsert() error {