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emailconsultantValidationErrorUniqueConstraintv14
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Tri Nanda

I using Odoo14,


I create a new custom model that inherit email field from res.partner, and want to make email for each of my users which is students be unique.


Here is my snipet of code:


class AqurStudent(models.Model):
    _name = "aqur.student"
    _description = "AQUR Student"
    _inherit = ['mail.thread', 'mail.activity.mixin']
    _inherits = {"res.partner": "partner_id"}
    partner_id = fields.Many2one('res.partner', 'Partner', required=True, ondelete="cascade")
    
    @api.constrains('email')
    def _check_email(self):
        for record in self:
            if record.email == record.email:
                raise ValidationError('The email already registered, please use another email!')

        res_partner = self.env['res.partner'].search_count([('email', '=', self.email)])
        if len(res_partner) > 1:
            raise ValidationError('The email already registered, please use another email!')

    _sql_constraints = [
        ('email_key', 'UNIQUE (email)', 'The email already registered, please use another email!')
    ]
The code above seems doesn't have any effect, I still can duplicate my students email and doesn't raise  a ValidationError.


So,  whats  wrong  with  my  code  above?

Please,  any  help,  source  or  tutorial  how  to  face  this  will  be  very  thanks,


Thanks,

Tri  Nanda 

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Tri Nanda
Author Best Answer

Finanly I solved this isue using this following code:

class Partner(models.Model):
    _inherit = "res.partner"

    @api.constrains('email')
    def _check_email(self):
        count_email = self.search_count([('email', '=', self.email)])
        if count_email > 1 and self.email is not False:
            raise ValidationError('The email already registered, please use another email!')

I don't find the way yet, how to use constrains on inherit model, so then I create the constrains code on the model that store the email field directly.


Thanks,

Tri Nanda


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Md. Saif Islam
Best Answer

You can use the code as below,

@api.model
def  create(self,  vals):
    previous_email  =  self.env['aqur.student'].search([('email','=',vals['email'])])
    if  len(previous_email)  >=  1:
        raise  ValidationError(_("This  Email  is  Already  Taken"))


Try to follow the above techniques, i hope this will solve your issue.



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