An Introduction to OIE Tables

The OIE Table entity provides a simple means to embed look-ups, filters, and translations into workflows. The principle of a Table is that it always receives a value and returns a value - a look-up.

Invoking an OIE Route from PHP

The repository not contains a PHP class making it simple to invoke an OIE workflow from PHP. See the oie.php file. Using the OIEProcess class defined in the file processes can be created and the process id and input message UUID known.

The SMTP Listener

Similar to the coils.workflow.9100 service that can deliver raw socket connections into defined workflows OpenGroupware Coils also provides an SMTP listener. The listener enables workflows to receive messages via SMTP; simply configure your MTA (Mail Transfer Agent) to route some prefix such as "ogo" to your OpenGroupware Coils instance and then use plussed address syntax to deliver e-mail messages to specific objects.

Task Retention / Auto-Archiving

The expectation is that users creating tasks will archive those tasks when then are either completed or rejected; this is the completion of the task work-flow. However it may be advantageous, at least for certain kinds of tasks, to ensure that tasks archive at some point even if the owner chooses to ignore them [archiving a task removes it from the executant's task list]. To facilitate auto-archival the configuration document named TaskRetention.yaml exists in project 7,000.

New Feature: PDF Scrubbrush

While PDF is intended to provide an entirely portable mechanism for exchange of non-trvial documents. However, in practice documents created by the real-world variety of clients almost inevitably contain deviations from the PDF standard which create issues when the document is processed by other applications and platforms. To ensure maximum compatibility the scrub brush feature re-compiles documents on the server using the using the Poppler libraries.

Task Rules

The OpenGroupware Coils Logic layer provides a simple rule system to help drive tasks along a user work-flow and to facilitate consistency for tasks of a specific type. Use of rules can help simply the logic of client applications and ensure consistent chains of events occur when tasks are modified by multiple applications.

Conversion Of Repositories to git

The OpenGroupware Code repository has been converted from Mercurial to Git. The Mercurial repositories are no longer available.

New Code Repo URLS:

  • Read Only : git clone git://git.code.sf.net/p/coils/coils-code coils-code
  • Read/Write : git clone ssh://{USERNAME}@git.code.sf.net/p/coils/coils-code coils-code

OpenGroupware Server Side Filters

OSSF [OpenGroupware Server Side Filter] modules provide for server-side transformations of work-flow messages and groupware documents via simple HTTP GET requests. Use of OSSF facilitates the simplification of client applications by allowing them to offline some complex and expensive operations to the OpenGroupware Coils server. OSSF modules can be used when requesting message or document content via either the AttachFS or the WebDAV presentation protocols.

Using AttachFS To Test XSLT Transforms

We have previously demonstrated testing format descriptions using AttachFS. Now with OpenGroupware Coils 0.1.49rc91 you can also list, retrieve, and test XSLT templates stored in the workflow engine [OIE]. XLST transforms are accessible via AttachFS requests at the URL /attachfs/workflow/xslt.

A Logic Example: Linking Documents To A Task

Most operations are performed by clients using some protocol over HTTP: XML-RPC, JSONRPC, REST, WebDAV, etc... It is also possible to utilize Python on any OpenGroupware Coils node to perform operations to use the Logic commands directly. The following example demonstrates how to create an object link from the specified task, OGo#318084549, to all the documents in folder OGo#231408659, setting the label of the link to the document's display name.

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