spincycle/lib/Taginator.js

A reactive message router and object manager that lets clients subscribe to object property changes on the server

// Generated by CoffeeScript 1.9.3
(function() {
  var SpinTag, Taginator, debug, defer;

  debug = process.env["DEBUG"];

  defer = require('node-promise').defer;

  SpinTag = require('./SpinTag');

  Taginator = (function() {
    function Taginator() {}

    Taginator.setTag = function(ds, type, id, tag) {
      var q;
      q = defer();
      Taginator.getTagsFor(ds, type, id).then(function(existingTags) {
        var record;
        if (existingTags.indexOf(tag) === -1) {
          record = {
            name: tag,
            modelRef: id,
            modelType: type
          };
          return new SpinTag(record).then(function(st) {
            st.serialize();
            return q.resolve();
          });
        } else {
          return q.resolve();
        }
      });
      return q;
    };

    Taginator.getTagsFor = function(ds, type, id) {
      var q;
      q = defer();
      ds.findQuery('SpinTag', {
        property: 'modelType',
        value: type,
        property2: 'modelRef',
        value2: id
      }).then(function(results) {
        var rv;
        rv = [];
        results.forEach(function(res) {
          return rv.push(res.name);
        });
        return q.resolve(rv);
      });
      return q;
    };

    Taginator.searchForTags = function(ds, type, tags) {
      var count, lookup, q, rv;
      q = defer();
      lookup = {};
      rv = [];
      count = tags.length;
      tags.forEach(function(tag) {
        return ds.findQuery('SpinTag', {
          property: 'modelType',
          value: type,
          property2: 'name',
          value2: tag
        }).then(function(results) {
          return results.forEach(function(spintag) {
            var found, k, v;
            found = lookup[spintag.modelRef] || 0;
            found++;
            lookup[spintag.modelRef] = found;
            if (--count === 0) {
              for (k in lookup) {
                v = lookup[k];
                if (v === tags.length) {
                  rv.push(k);
                }
              }
              return q.resolve(rv);
            }
          });
        });
      });
      return q;
    };

    return Taginator;

  })();

  module.exports = Taginator;

}).call(this);

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