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With Django, anyone can easily get started with content management system. It is an open-source project that uses SQLite database for its data. To update a record in Django, you need to create a new one and then drop the old one before saving the record with your changed data to save it permanently. Also, this process should not be done on production server. The first example in listing 9-8 uses the update() method to update the Store record with id=1 and set its name to Downtown (Madison) . The second example in listing 9-8 uses a Django F expression and the update() method to update the Item record with id=3 and set its stock value to the current stock value plus 100.

Update forms in Django is a very important aspect of modern web application development. This topic will teach you how to update a form in Django. A Django form is a web page that can collect input from users and store it as a database entry. It provides the user interface for the input fields and validation rules for those fields. In a typical form, you'll want to update any relevant information whenever necessary, especially when the data changes. For example, if you save an address on your account, you'll need to update your address so that any future submissions are correct.

save() method is save the record. django will save the current object state to record. So if some changes happens between get() and save() by some other process, then those changes will be lost.

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