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• install CouchDB from http://couchdb.apache.org/
• Via the Create Database link create a database called 'wps' (small case)
• Click on wps database,
• Via the New Document link create a new view.
• Manually update the source block (double click in the source block) by adding the following code:

  Code Block

  { "_id": "_design/views", "language": "javascript", "views": { "processes": { "map": "function(doc) {\n\n if (doc.type == \"processes\") {\n \n doc.processes.forEach(function(element){\n emit(element.identifier, element);\n });\n}\n}" }, "input": { "map": "function(doc) {\n if (doc.type == \"input\") {\n emit(null, doc);\n}\n}" }, "output": { "map": "function(doc) {\n if (doc.type == \"output\") {\n emit(doc._id, doc);\n}\n}" }, "matlab": { "map": "function(doc) {\n\n if (doc.type == \"processes\" && doc.language == \"matlab\") {\n \n \n emit(doc._id, doc);\n }\n}" } } }

• If you modify an existing document, keep the original "_rev": "BUT KEEP THE AUTOMATIC REV CODE GENERATED BY YOUR COUCHDB"
• Test http://localhost:5984/wps/_design/views/_view/matlab to look like:

  Code Block
  {"total_rows":0,"offset":0,"rows":[ ]}

• Switch to queue_url = 'http://localhost:5984' in the matlab wps runner wps.runner.run
• Check out this fork of pywps https://github.com/openearth/PyWPS and use branch couchprocesses
• configure your couchdb server in
  https://github.com/openearth/PyWPS/blob/couchprocesses/pywps/default.cfg