
Learn how to override the create method in Odoo to add custom validation, logic, or actions when creating new records. Complete examples and best practices included.
The create method in Odoo is responsible for creating new records in the database. It is one of the most commonly used methods in Odoo's ORM (Object-Relational Mapping) framework. Overriding this method allows developers to add custom logic that gets executed when a record is created. In this blog, we will guide you through the steps to override the create method in Odoo with code examples to help you understand how to extend its functionality.
Overriding the create method can be useful when you need to validate input, manipulate data, or trigger additional processes whenever a new record is added to a specific model. By overriding the method, you can inject custom behavior before or after the original create method is executed.
To override the create method in Odoo, you need to inherit the model where you want to apply your changes and then redefine the create
method. Here’s a step-by-step guide with a practical example:
In this example, we will override the create method in the res.partner model (which handles partner/customer records). We'll add a validation to ensure that every partner record has an email address.
from odoo import models, fields, api
class CustomPartner(models.Model):
_inherit = 'res.partner'
def create(self, vals):
# Custom logic: Ensure that email is provided
if not vals.get('email'):
raise ValueError("An email address is required for a partner.")
# Call the parent method to ensure original behavior is executed
return super(CustomPartner, self).create(vals)
In this example:
_inherit
.vals
dictionary. If it isn’t, a ValueError
is raised.super()
to call the original create
method to ensure that the default behavior (creating the record) still takes place after our custom logic is executed.You can also manipulate the data before the record is created. For instance, let’s add a default value to a custom field if it’s not provided:
from odoo import models, fields
class CustomSaleOrder(models.Model):
_inherit = 'sale.order'
def create(self, vals):
# Custom logic: Add a default value for custom_field if not provided
if 'custom_field' not in vals:
vals['custom_field'] = 'Default Value'
# Call the original create method
return super(CustomSaleOrder, self).create(vals)
In this case, if the user doesn’t specify a value for custom_field, the system automatically assigns a default value of "Default Value" before creating the record.
You can also include more complex logic, such as updating related models or triggering additional actions. For example, let’s notify the user when a new sale order is created:
from odoo import models, fields
class CustomSaleOrder(models.Model):
_inherit = 'sale.order'
def create(self, vals):
# Create the sale order record
record = super(CustomSaleOrder, self).create(vals)
# Trigger a custom action after creating the record
# For example: Send a notification
self.env.user.notify_success('Sale Order Created Successfully!')
return record
In this example:
create
method.Here are some best practices to keep in mind when overriding the create method in Odoo:
super()
: When overriding a method, always call the original method using super()
to ensure the default behavior is preserved.create
method to ensure maintainability and performance.create
method to validate or manipulate data before creating a record to ensure data integrity.Overriding the create method in Odoo provides a powerful way to inject custom behavior during the record creation process. Whether you’re adding custom validation, setting default values, or triggering additional actions, this method allows you to tailor Odoo’s functionality to your business needs. Always remember to use super()
to maintain Odoo’s default behavior while extending it with your custom logic.
For more Odoo development tips and tricks, be sure to check our website Free web snippets.
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