This is the model file

from odoo import fields, models


class PropertyOffer(models.Model):

    _name = 'longdick.estate.offer'
    _description = 'Offers data of a property, One to Many relation. One: property, many: offers'

    price = fields.Float(default = 500000, string = 'Offer Price', required = True)
    status = fields.Selection(string = 'Offer Status',
                              default = 'considering',
                              selection = [
                                  ('accepted', 'Accepted'),
                                  ('considering', 'Considering'),
                                  ('negotiating', 'Negotiating'),
                                  ('refused', 'Refused'),
                              ],
                              copy = False)
    offer_maker = fields.Many2one('res.partner', string = 'Offer Maker', required = True)
    property = fields.Many2one('longdick.estate', string = 'Property', required = True)



==============================
This is my init file

from . import longdick_estate, \
    longdick_estate_property_type, \
    longdick_estate_property_tag, \
    longdick_estate_offer

The first three models were just working fine, however, the fourth just couldn't be created
I even tried to reboot my PC, just not working.

I checked both technical setting and my database in postgreSQL, there's no my offer table. 
However, estate/property_type/property_tag and estate&tag rel table are created properly.

I'm also sure about that my ir model access csv​ is set properly, as below:

id,name,model_id/id,group_id/id,perm_read,perm_write,perm_create,perm_unlink
access_longdick_estate,longdick.estate,model_longdick_estate,base.group_user,1,1,1,1
access_longdick_estate_offer,longdick.estate.offer,model_longdick_estate_offer,base.group_user,1,1,1,1
access_longdick_estate_property_tag,longdick.estate.property.tag,model_longdick_estate_property_tag,base.group_user,1,1,1,1
access_longdick_estate_property_type,longdick.estate.property.type,model_longdick_estate_property_type,base.group_user,1,1,1,1

Furthermore, I'm using superuser mode, therefore, it's shouldn't be a problem, even if I have some typo in the access file.

Thanks for answering in advance!!!


@Mehjabin Farsana, Thank you miss mehjabin for answering my question so fast.
And sorry for replying your answer in such a way because I don't have enough karma points.
However, your answer doesn't quit solve my problem. Would you mind help me a little bit more?


Problem solved, I just uninstalled my App and then installed it. It began to work.