Solr 7.x compatibility with Moodle search plugin

Install a new site Enable global search. Set the following constants in your config.php: define('TEST_SEARCH_SOLR_HOSTNAME', 'localhost'); define('TEST_SEARCH_SOLR_PORT', '8983'); define('TEST_SEARCH_SOLR_INDEXNAME', 'unittest'); Generate phpunit files for moodle components: php admin/tool/phpunit/cli/util.php --buildcomponentconfigs Test 1 Using docker, install solr 7 and create an index for your site using the same index name: docker run --name solr7 -d -p 8983:8983 -t solr:7 docker exec -it --user=solr solr7 bin/solr create_core -c YOURINDEXNAME docker exec -it --user=solr solr7 bin/solr create_core -c unittest Go to " admin/settings.php?section=searchsolr ", set YOURINDEXNAME as 'Index name' and save changes Go to " admin/category.php?category=searchplugins ". On ' Setup search engine ', you should see " Error validating Solr schema: field itemid does not exist. Please follow this link to set up the required fields. ". Click on " follow this link " The process should finish without issues and you should see "Yes" for " Setup search engine " Now click on 'Index data' link and press 'Reindex all site contents' Confirm that search is working in search/index.php (search for 'admin' and admin user will appear as a result) Search component unit tests should pass without any skipped test vendor/bin/phpunit -c search Test 2 Stop your solr 7 server. docker stop solr7 Using docker, install solr 6 and create an index for your site: docker run --name solr6 -d -p 8983:8983 -t solr:6 docker exec -it --user=solr solr6 bin/solr create_core -c ANOTHERINDEXNAME docker exec -it --user=solr solr6 bin/solr create_core -c unittest Go to " admin/settings.php?section=searchsolr ", set ANOTHERINDEXNAME as 'Index name'. Save the changes Note: At this point it is possible that you see a solr client error debugging message; this message appears because the index we configured in test 2 is not available anymore, do not worry about it Go to " admin/category.php?category=searchplugins " On ' Setup search engine ', you should see " Error validating Solr schema: field itemid does not exist. Please follow this link to set up the required fields. ". Click on " follow this link " The process should finish without issues and you should see "Yes" for " Setup search engine " Now click on 'Index data' link and press 'Reindex all site contents' Confirm that search is working in search/index.php (search for 'admin' and admin user will appear as a result) Search component unit tests should pass without any skipped test vendor/bin/phpunit -c search