Odoo 17 Development Book- Updating Records

Updating Records

Occasionally, there might be a need to modify records by updating the values of certain fields. This can be achieved using the update() method of a model. Assigning a field value to a record can be done through one of three methods.

1. Directly assigning values to the attribute that corresponds to the field of the record.

-Directly assigning a value to a field is possible.

self.test_boolean = True

The 'self' represents the object of the record for which the field value, 'test_boolean' in this case, is being updated.

2.update() method

-Utilizing the update() method allows us to alter the value of a field.

self.update({
   'start_date': fields.Date.today(),
   'test_boolean': True
})

The 'start_date' and 'test_boolean' are the fields we intend to update. By providing a dictionary to the update method, we can map the field names to the desired values for modification.

3.write() method

The update method can be supplied with a dictionary that links the field names to the values intended for setting.

self.write({
   'start_date': fields.Date.today(),
   'test_boolean': True
})

The final two options necessitate a separate database call for each record and each field. In contrast, this approach updates all records with the designated values in a single database operation, suitable for recordsets of any size. However, it comes with certain limitations: it doesn't function if the records are not yet in the database. Additionally, when writing relational fields, it demands a specific format akin to the one utilized by the create() method.

fields.command.create({ values }) – Establish a connection to a new record that necessitates creation, utilizing the provided dictionary of values.

fields.command.update(ID, { values }) – Modify the associated record with the identifier (ID) by updating it with the specified values.

fields.command.delete( ID ) – Eliminate and erase the linked record identified by ID (invokes unlink on ID, leading to the complete deletion of the object and its associated link).

fields.command.unlink( ID ) – Sever the connection to the linked record identified by ID (terminate the association between the two entities without removing the target object itself).

fields.command.link( ID ) – Establish a link to an existing record identified by ID (creates an association).

fields.command.clear( ) – Dissociate from all (similar to employing (3, ID) for every linked record).

fields.command.set([ IDs ]) – Substitute the array of linked IDs (similar to employing (5) followed by (4, ID) for each ID in the list).

whatsapp
location

Calicut

Cybrosys Technologies Pvt. Ltd.
Neospace, Kinfra Techno Park
Kakkancherry, Calicut
Kerala, India - 673635

location

Kochi

Cybrosys Technologies Pvt. Ltd.
1st Floor, Thapasya Building,
Infopark, Kakkanad,
Kochi, India - 682030.

location

Bangalore

Cybrosys Techno Solutions
The Estate, 8th Floor,
Dickenson Road,
Bangalore, India - 560042

Send Us A Message