The my_library instance should already contain a Python file called models/library_book.py, which defines a basic model. We will edit it to add a new class-level attribute after _name:

1. To add a user-friendly title to the model, add the following code:

_description = 'Library Book' 

2. To sort the records first (from newer to older, and then by title), add the following code:

_order = 'date_release desc, name' 

3. To use the short_name field as the record representation, add the following code:

_rec_name = 'short_name' 
short_name = fields.Char('Short Title', required=True)

4. Add the short_name field in the form view so that it can display the new field in the view:

<field name="short_name"/>

When we're done, our library_book.py file should look as follows:

from odoo import models, fields 
class LibraryBook(models.Model): 
    _name = 'library.book' 
    _description = 'Library Book' 
    _order = 'date_release desc, name' 
    _rec_name = 'short_name' 
    name = fields.Char('Title', required=True) 
    short_name = fields.Char('Short Title', required=True) 
    date_release = fields.Date('Release Date')
    author_ids = fields.Many2many('res.partner', string='Authors')

Your <form> view in the library_book.xml file will look as follows:

<form>
    <group>
        <group>
            <field name="name"/>
            <field name="author_ids" widget="many2many_tags"/>
        </group>
        <group>
            <field name="short_name"/>
            <field name="date_release"/>
        </group>
    </group>
</form>

We should then upgrade the module to activate these changes in Odoo.