nEDM Interface

Attachments

_design/attachments

This view allows determining which documents have attachments and how much data is being taken up by those attachments.

all

This handles documents attached using CouchDB's attachment mechanism (which generally should not be used in the nEDM systems) and those using the FileServer.

• map

  function(doc) {
   var k;
   if (doc._attachments) {
     for (k in doc._attachments) {
       emit([doc._id, k], doc._attachments[k].length);
     }
   }
   if (doc.external_docs) {
     for (k in doc.external_docs) {
       emit([doc._id, k], doc.external_docs[k].size || 0);
     }
   }
  }

• reduce: _stats

Query examples

This is generally only used for offline querying

• Get total attachment size in nedm/measurements: http://raid.nedm1/nedm%2Fmeasurements/_design/attachments/_view/all?stale=update_after.
• In pynedm: