Pull Request for Issue # .

Summary of Changes

This pull request (PR) adapts the update SQL script "5.0.0-2023-07-29.sql" so that the compatibility plugin is only inserted when it does not already exist.

In addition, it adds default values to the $this->params->get calls so that class aliases and ES5 assets are enabled when the parameters in database are empty, which will be the case when updating from a future 4.4.0 version where PR #41738 is included.

The changes in PR #41738 for 4.4-dev and this PR here for 5.0-dev are made in order to handle the exception which you get when updating from 4.4 to 5.0 and having a system plugin installed and enabled which descends from JPlugin.

Testing Instructions

Test 1: Update from a 4.4 where PR #41738 is included

1. Execute "Test 2" or "Test 3" from the testing instructions of PR #41738 , but do not install the testing plugin "ttest2.zip".

Result: Without this PR here, the compat plugin would be inserted a 2nd time. With this PR, the compat plugin is not inserted a 2nd time.

Test 2: Update from a 4.4 where PR #41738 is not included

1. Update a current 4.0-dev or latest 4.0 nightly build or 4.4.0-alpha4 to 5.0.

Result: The compat plugin is inserted with this PR as well as without.

Test 3: Update from a 5.0.0-alpha3 or older 5.0.0-alpha where the compatibility plugin is a system plugin.

1. Update a 5.0.0-alpha3 or older 5.0.0-alpha to 5.0.

Result: The compat plugin is inserted as a behaviour plugin with this PR as well as without, and the compat plugin as a system plugin is removed.

Actual result BEFORE applying this Pull Request

When updating from a 4.4 where PR #41738 is included, the compat plugin is inserted a 2nd time.

Expected result AFTER applying this Pull Request

When updating from a 4.4 where PR #41738 is included, the compat plugin is not inserted a 2nd time.

Any other case works as well as before, i.e. the plugin is inserted.

Link to documentations

Please select:

• No documentation changes for docs.joomla.org needed

• No documentation changes for manual.joomla.org needed