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/* openbills - Server for web based Libre Billing Software
* Copyright (C) 2023 Vidhu Kant Sharma <vidhukant@vidhukant.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package invoice
import (
"vidhukant.com/openbills/errors"
)
func (i *Invoice) validate() error {
var count int64
err := db.Model(&Invoice{}).
Where("user_id = ? and invoice_number = ?", i.UserID, i.InvoiceNumber).
Count(&count).
Error
if err != nil {
return err
}
if count > 0 {
return errors.ErrNonUniqueInvoiceNumber
}
return nil
}
func isDraft(invoiceId uint) (bool, error) {
var invoice Invoice
err := db.
Select("id", "is_draft").
Where("id = ?", invoiceId).
Find(&invoice).
Error
// TODO: handle potential errors
if err != nil {
return invoice.IsDraft, err
}
// invoice doesn't exist
if invoice.ID == 0 {
return invoice.IsDraft, errors.ErrNotFound
}
return invoice.IsDraft, nil
}
func checkInvoiceOwnership(invoiceId, userId uint) error {
var invoice Invoice
err := db.
Select("id", "user_id").
Where("id = ?", invoiceId).
Find(&invoice).
Error
// TODO: handle potential errors
if err != nil {
return err
}
// invoice doesn't exist
if invoice.ID == 0 {
return errors.ErrNotFound
}
// user doesn't own this invoice
if invoice.UserID != userId {
return errors.ErrForbidden
}
return nil
}
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