Overview
✅ Syntax
computed_field = fields.Char(
compute=’_compute_method’,
store=True or False
)
- Value is not stored in the database
- Computation happens each time the field is accessed
- Cannot be used in:
- search domains
- group_by
- filters in views
📌 Example
total = fields.Float(
compute=‘_compute_total’,
store=False
)
@api.depends(‘amount’, ‘tax’)
def _compute_total(self):
for rec in self:
rec.total = rec.amount + rec.tax
Field total will be computed every time it’s accessed.
- Value is stored in the database
- Computation happens:
- when the record is created or updated
- when any @api.depends field changes
- Can be used in:
- search domains
- filters
- group_by in views
- performance-optimized reports
📌 Example
total = fields.Float(
compute=‘_compute_total’,
store=True
)
@api.depends(‘amount’, ‘tax’)
def _compute_total(self):
for rec in self:
rec.total = rec.amount + rec.tax
Field total is stored, searchable, and usable in filters.
🧠 Realistic Use Case in Odoo
age_category = fields.Selection(
compute=‘_compute_age_category’,
store=False
)
def _compute_age_category(self):
for rec in self:
rec.age_category = ‘adult’ if rec.age > 18 else ‘minor’
Used only for display—no need to store.
invoice_count = fields.Integer(
compute=‘_compute_invoice_count’,
store=True
)
@api.depends(‘invoice_ids’)
def _compute_invoice_count(self):
for rec in self:
rec.invoice_count = len(rec.invoice_ids)
Searchable, fast access, available in smart buttons.
✅ Summary Table
Feature |
store=False |
store=True |
| Stored in DB | ❌ No | ✅ Yes |
| Recomputed | Every access | On trigger (@api.depends) |
| Searchable / Filter | ❌ No | ✅ Yes |
| Use in group_by | ❌ No | ✅ Yes |
| Recommended for | UI display, light data | Reporting, filters, performance |
