pouchdb-find/lib/adapters/local/get-indexes/index.js

Easy-to-use query language for PouchDB

'use strict';

var utils = require('../../../utils');

var localUtils = require('../utils');
var massageIndexDef = localUtils.massageIndexDef;

function getIndexes(db) {
  // just search through all the design docs and filter in-memory.
  // hopefully there aren't that many ddocs.
  return db.allDocs({
    startkey: '_design/',
    endkey: '_design/\uffff',
    include_docs: true
  }).then(function (allDocsRes) {
    var res = {
      indexes: [{
        ddoc: null,
        name: '_all_docs',
        type: 'special',
        def: {
          fields: [{_id: 'asc'}]
        }
      }]
    };

    res.indexes = utils.flatten(res.indexes, allDocsRes.rows.filter(function (row) {
      return row.doc.language === 'query';
    }).map(function (row) {
      var viewNames = row.doc.views !== undefined ? Object.keys(row.doc.views) : [];

      return viewNames.map(function (viewName) {
        var view = row.doc.views[viewName];
        return {
          ddoc: row.id,
          name: viewName,
          type: 'json',
          def: massageIndexDef(view.options.def)
        };
      });
    }));

    // these are sorted by view name for some reason
    res.indexes.sort(function (left, right) {
      return utils.compare(left.name, right.name);
    });
    res.total_rows = res.indexes.length;
    return res;
  });
}

module.exports = getIndexes;