nEDM Interface

Document types

_design/document_type

These are two views to allow querying based upon document type in the database. With this view, we can get all documents of a certain type, or documents of a certain type in a data range.

document_type

This view emits as key: [doc_type, Y, M, D, H, M, S].

• map

  function(doc) {
   if (!doc.type || !doc.timestamp) return;
   var then = new Date(Date.parse(doc.timestamp));
   emit([doc.type,
         then.getUTCFullYear(), then.getUTCMonth(),
         then.getUTCDate(), then.getUTCHours(),
         then.getUTCMinutes(), then.getUTCSeconds()], 1);
  }

• reduce: _stats

document_type_label

This view simply reverses the ordering of the output key, so: [Y, M, D, H, M, S, doc_type].

• map

  function(doc) {
   if (!doc.type || !doc.timestamp) return;
   var then = new Date(Date.parse(doc.timestamp));
   emit([doc.type,
         then.getUTCFullYear(), then.getUTCMonth(),
         then.getUTCDate(), then.getUTCHours(),
         then.getUTCMinutes(), then.getUTCSeconds()], 1);
  }

• reduce _stats

Query examples

• In nEDM Interface:

  // Grab all heartbeat documents
  nedm.get_database().getView(
   'document_type',
   'document_type',
   { opts :
                {
                  reduce : false,
                  endkey : ['heartbeat'],
                  startkey : ['heartbeat', {}],
                  descending : true
                }
   },
         function(e, o) {
     // .. handle results
   });

• In pynedm: