Скачать или смотреть Solving the AttributeError: How to Fix Odoo 15 Modules on Odoo 16

Encountering an `AttributeError` while installing Odoo 15 DMS Module on Odoo 16? Learn how to resolve it effectively with our detailed guide!
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This video is based on the question https://stackoverflow.com/q/77267553/ asked by the user 'Jmm36' ( https://stackoverflow.com/u/22717819/ ) and on the answer https://stackoverflow.com/a/77270664/ provided by the user 'Amin Dehghani' ( https://stackoverflow.com/u/17383241/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Understanding the AttributeError in Odoo

If you're delving into Odoo development, you may have come across various errors during module installation or execution. Recently, a common pitfall has emerged when trying to install Odoo 15 modules on Odoo 16, specifically the DMS (Documents) module from OCA (Odoo Community Association). One of the resultant errors is:

[[See Video to Reveal this Text or Code Snippet]]

This error can be particularly confusing for those who are newer in Odoo development. Let's break down the details and see how we can resolve this issue effectively.

The Problem: Incompatibility Between Odoo Versions

When you attempt to use Odoo 15 modules, such as DMS, in Odoo 16, you're likely to encounter compatibility issues. Each version of Odoo comes with updates and changes that may render code from a previous version obsolete or faulty. In particular, the _render method used in Odoo 15 no longer exists in Odoo 16, leading to the AttributeError you see in the terminal.

For instance, the error surfaced during the execution of:

[[See Video to Reveal this Text or Code Snippet]]

This line of code attempts to call a method that is not available in the newer version, resulting in an error and ultimately halting your development work.

The Solution: Updating the Module Code

To fix this problem, you need to modify the code in your module to align with the requirements of Odoo 16. Here's a step-by-step guide to resolving the issue:

Step 1: Identify the Faulty Code

Locate the part of the code that generates the error. For example, within the DMS module, the error occurs in the main.py. Look for the line that calls the _render method on the ir.ui.view object.

Step 2: Replace _render with the Appropriate Method

In Odoo 16, the _render method for rendering QWeb templates has changed. Instead, you need to call it using the ir.qweb model. Here is how to adjust your code to eliminate the error:

[[See Video to Reveal this Text or Code Snippet]]

Step 3: Test the Changes

After making the above modification, run your module and test to ensure that the error no longer appears. This should resolve the issues with the document onboarding file panel.

Conclusion

Migrating from Odoo 15 to Odoo 16 can lead to various challenges, especially related to code compatibility. Remember that when working with modules across different versions, it's essential to update the code to align with the new version specifications. By following the steps outlined above, you should be able to fix the AttributeError and continue your development without further hindrances.

If you come across additional issues or have questions, don't hesitate to seek help from the Odoo community or refer to the official documentation for the most reliable guidance. Happy coding!