This module is maintained by Ukrainian developers.
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Since Drupal 6 and Drupal 7 lose support in favor of Drupal 8, we strongly recommend that you upgrade your resources to Drupal 8 and focus on supporting Drupal 8 core and modules. To appreciate the efforts to upgrade your resource from the Drupal core 6 and the Drupal core 7 to the Drupal core 8 version, you can use the "Drupal 8 upgrade evaluation" module. Suggestions for refinement and optimization "Drupal 8 upgrade evaluation" are very welcome.
The migrate module provides a flexible framework for migrating content into Drupal from other sources (e.g., when converting a web site from another CMS to Drupal). Out-of-the-box, support for creating core Drupal objects such as nodes, users, files, terms, and comments are included - it can easily be extended for migrating other kinds of content. Content is imported and rolled back using a bundled web interface (Migrate UI module) or included Drush commands (strongly recommended).
The module is now obsolete. New frameworks such as comet or HTML5's websockets should be used instead.
Live Update is a module that provides a flexible and scalable to provide up to date in content to users without requiring page refreshes. Live Update uses JQuery to poll lightweight text files that tell the users' browser if new content is available. If so, JQuery then makes another call to get the updated content stored as static HTML.
A blog post detailing how one might use this API to set up a Question and Answer (similar to our PBS Engage work) scenerio is here
API
Live Update provides a simple API for modules hook into and allow Drupal to store, retrieve and insert content updates of all kinds. The API breaks down into two basic functions:
Telling the browser how and where to look for updates and what do to when you found them.
This module allows access to nodes with attached and related files, as well as access to file node contents, via a WebDAV metaphor similar to File Server. The user can browse all files existing in the system by file MIME type, attached- or related-to node type (e.g., event, story, etc.), and attached- or related-to node parent group. Group browsing additionally supports OG Vocabulary integration, which browses by group taxonomy to find attached- or related-to nodes.
For a faster understanding of this module, please see the original author's presentation from Drupalcon DC, available here.