Mastering Odoo Delegation Inheritance: A Step-by-Step Guide to Removing Delegate Fields

Removing Delegate Fields: A Step-by-Step Guide

Now that we’ve discussed the reasons for removing delegate fields, let’s dive into the process of doing so. Follow these steps to successfully remove delegate fields in Odoo delegation inheritance:

Step 1: Identify the Delegate Fields

The first step is to identify the delegate fields in your Odoo model. You can do this by looking for fields with the `_inherits` attribute:

class MyModel(models.Model):
    _name = 'my.model'
    _inherits = {'res.partner': 'partner_id'}

    partner_id = fields.Many2one('res.partner', 'Partner')

In this example, the `partner_id` field is a delegate field that establishes a relationship between `MyModel` and `res.partner`.

Step 2: Create a New Model

Create a new model that will replace the delegate field. This new model will contain the fields you want to inherit from the target model:

class MyInheritedModel(models.Model):
    _name = 'my.inherited.model'
    _description = 'My Inherited Model'

    name = fields.Char('Name')
    email = fields.Char('Email')

In this example, we’ve created a new model called `MyInheritedModel` with two fields: `name` and `email`.

Step 3: Remove the Delegate Field

Remove the delegate field from your original model:

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

    # Remove the partner_id field

Step 4: Establish the Inheritance Relationship

Update the `_inherit` attribute to establish the inheritance relationship between your original model and the new inherited model:

class MyModel(models.Model):
    _name = 'my.model'
    _inherit = 'my.inherited.model'

    # Add other fields and logic as needed

By doing this, you’ve successfully removed the delegate field and established a direct inheritance relationship between `MyModel` and `MyInheritedModel`.

Best Practices for Removing Delegate Fields

To ensure a smooth transition and avoid potential issues, follow these best practices when removing delegate fields:

1. Test Thoroughly**: Thoroughly test your code after removing delegate fields to ensure everything works as expected.
2. Refactor Code**: Take this opportunity to refactor your code, simplify logic, and eliminate any unnecessary complexity.
3. Document Changes**: Document the changes you’ve made, including the reasons for removing delegate fields and the impact on your codebase.
4. Monitor Performance**: Closely monitor your application’s performance after removing delegate fields to ensure there are no negative impacts.