Hello all,

i am new in Odoo and i try my first steps to create a sequece and a button to increment it on button click.

I created my own module and added my files.

Here my files:

debit_card.py

from odoo import models, fields, api, _

class DebitCard(models.Model):
    _name="debit.card"
    _description="Debit Card"
    
    debit_seq = fields.Char(
        string="Debit Card Datev Sequence",
        required=True,
        copy=False,
        readonly=True,
        index=True,
        default=lambda self: _("New"))

    @api.model
    def create(self, vals):
        if vals.get('debit_seq', _('New')) == _('New'):
            vals['debit_seq'] = self.env['ir.sequence'].next_by_code('debit.card.sequence.code') or _('New')
        result = super(DebitCard, self).create(vals)
        return result

debit_card_view.xml (can´t post correct code. don´t know why...)

        (record id="debit_card_form_view" model="ir.ui.view")
            (field name="name")debit.card.form.view(/field)
            (field name="model")debit.card(/field)
            (field name="arch")type="xml"(/field)
             (form string="Debit Card")
                    (div)Hello World! (/div)
                    (field name="debit_seq" style="font-size:22px;font-weight:bold;"/)
             (/form)
          (/field)
        (/record)
        
    

sequence.xml

(odoo)
    (data noupdate="1")
        (!-- Sequence for debit.card //--)
        (record id="debit_card_datev_sequence" model="ir.sequence")
            (field name="name")Debit Card Datev Sequence(/field)
            (field name="code")debit.card.sequence.code(/field)
            (field name="padding")7(/field)
            (field name="number_next")62071(/field)
            (field name="number_increment")1(/field)
            (field name="company_id" eval="False"/)
        (/record)
    (/data)
(/odoo)       
    

Now, if i call the debit card it shows me: "Hello World!"

But no sequence but "New"

I found many "examples" on web search but nothing helps me.

Where is the issue for not showing the sequence?

And how to implement a button to increment the sequence on click?