Odoo Custom Development

Odoo Module Structure

my_module/
├── __init__.py
├── __manifest__.py
├── models/
│   ├── __init__.py
│   └── my_model.py
├── views/
│   └── my_model_views.xml
├── security/
│   └── ir.model.access.csv
└── data/
    └── my_data.xml

Manifest File

{
    'name': 'My Module',
    'version': '17.0.1.0.0',
    'category': 'Custom',
    'depends': ['base', 'sale'],
    'data': [
        'security/ir.model.access.csv',
        'views/my_model_views.xml',
    ],
    'installable': True,
}

Defining a Model

from odoo import models, fields, api

class MyModel(models.Model):
    _name = 'my.model'
    _description = 'My Custom Model'

    name = fields.Char(required=True)
    amount = fields.Float()
    partner_id = fields.Many2one('res.partner', string='Customer')
    line_ids = fields.One2many('my.model.line', 'parent_id')

    @api.depends('line_ids.amount')
    def _compute_total(self):
        for rec in self:
            rec.total = sum(rec.line_ids.mapped('amount'))

    total = fields.Float(compute='_compute_total', store=True)

Common Field Types

Field	Usage
Char	Short text
Text	Long text
Integer / Float / Monetary	Numbers
Boolean	True/False
Date / Datetime	Dates
Selection	Dropdown list
Many2one	Foreign key
One2many	Reverse relation
Many2many	Junction table

Inheritance

class SaleOrder(models.Model):
    _inherit = 'sale.order'

    custom_field = fields.Char(string='Custom Field')

ORM Methods

# Search
records = self.env['my.model'].search([('amount', '>', 100)])

# Create
record = self.env['my.model'].create({'name': 'Test', 'amount': 50})

# Write
record.write({'amount': 200})

# Unlink
record.unlink()

# Browse by ID
record = self.env['my.model'].browse(42)