I have a code that sends email on button click, you can use this on our create method as well.

Have a look please: http://learnopenerp.blogspot.com/2017/08/odoo-how-to-send-email-on-button-click.html

Thanks

Hi Kabeer,

1st solution,

• result.message_subscribe([25])

• result.message_post(body="Test Message",  message_type="notification", subtype="mail.mt_comment")
  

2nd solution,

• result.message_post(body="Test Message",  message_type="notification", subtype="mail.mt_comment", partner_ids=[25] )

in your case,

@api.model
def create(self,vals):
    result = super(HRHolidays,self).create(vals)
    result.message_post(
        message_type='notification',
        subtype='mail.mt_comment',
        partner_ids=[25]
    )
    return result