ExtensionDirectories[]=extension1
ExtensionDirectories[]=extension2
...
This setting can be used to specify the extension directories where eZ Publish will look for search engine plugins. By default, eZ Publish will look for plugins in the "search/plugins/" subdirectory inside your extension(s).
If you have an extension "findme" that includes a search engine plugin called "myengine", you'll need to put the following lines into an override for the "site.ini" configuration file:
[SearchSettings] ExtensionDirectories[]=findme SearchEngine=myengine
eZ Publish will look for the search engine plugin at "extension/findme/search/plugins/myengine/myengine.php".
If your site makes use of the eZ Find extension, the "site.ini.append.php" configuration file located in the "extension/ezfind/settings/" directory will contain the following lines:
[SearchSettings] ExtensionDirectories[]=ezfind SearchEngine=ezsolr
This will instruct the system to use the search engine plugin located at "extension/ezfind/search/plugins/ezsolr/ezsolr.php".
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