all map function doc if doc Type chat_log emit null doc by_chatroom_da

{
   "all": {
       "map": "function(doc) {if (doc.Type == 'chat_log') emit(null, doc);}"
   },
   "by_chatroom_date": {
       "map": "function(doc) {if (doc.Type == 'chat_log') emit([doc.chatroom, doc.timestamp], doc);}"
   },
   "chatrooms": {
       "map": "function(doc) {emit(doc.chatroom, null);}",
       "reduce": "function(key, values) {return null;}"
   },
   "dates_for_chatroom": {
       "map": "function(doc) {if (doc.Type == 'chat_log') {var tstamp = Date(doc.timestamp); emit([chatroom], tstamp.getFullYear()); emit([chatroom, tstamp.getFullYear()], tstamp.getMonth()); emit([chatroom, tstamp.getFullYear(), tstamp.getMonth()], tstamp.getDate());}}",
       "reduce": "function(key, values) {result = [];for (var i=0; i<values.length; ++i) if (result.indexOf(values[i]) == -1) result.push(values[i]); return result;}"
   }
}