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Sakai is evaluating a new wiki. xWiki is an open source wiki for which there is already an IMS Learning Tools Interoperability (LTI) extension available. However, the integration does not take advantage of important Sakai features like group management. The idea is to build on the existing LTI integration by extending it to talk with Sakai and respect group settings.
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Sakai integrates with ElasticSearch for content indexing and discovering. However the ability to actually search for files within a tool (webapp) is not readily accessible. This project would involve adding the search feature to the top navbar of the portal so that content can be searched within the current site that the user is in and also across the sites that the user has access to.
(Adam: A start on the API has been made here: github.com/ColinHebert/Sakai-Search2)
6) Assignments tools design improvements
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The current item picker which can be launched from within the WYSIWYG HTML (rich-text) editor is a modified FCKedit plugin (written in JavaScript) and as such needs to be replaced; functionality could also be enhanced. Rather than start from scratch, it may be an idea to base the rewrite on an existing browser such as elFinder or KCFinder.
If you have questions or want to discuss your ideas, ask on the Sakai Developers mailing list, then contact a project mentor directly.