from odoo import api, fields, models class EducationLibrary(models.Model): _name = 'education.library' _description = 'Education Library Master' name = fields.Char(string='Library Name', required=True) code = fields.Char(string='Code', required=True, copy=False) campus_id = fields.Many2one('education.campus', string='Campus') department_id = fields.Many2one('education.department', string='Department') location = fields.Char(string='Location') librarian_id = fields.Many2one('res.users', string='Librarian') phone = fields.Char(string='Phone') email = fields.Char(string='Email') active = fields.Boolean(default=True) _code_unique = models.Constraint('unique(code)', 'The Library Code must be unique!')