allow shared dbsMap, always set created_at and updated_at

lib/dbwrap.js

@@ -1,14 +1,17 @@
 'use strict';
 
-function wrap(db, dir) {
+function wrap(db, dir, dbsMap) {
   // TODO if I put a failure right here,
   // why doesn't the unhandled promise rejection fire?
   var PromiseA = require('bluebird');
   var promises = [];
   var earr = [];
-  var dbsMap = {};
   var debug = false;
 
+  if (!dbsMap) {
+    dbsMap = {};
+  }
+
   db.escape = function (str) {
     return (str||'').toString().replace(/'/g, "''");
   };
@@ -324,6 +327,9 @@ function wrap(db, dir) {
         return PromiseA.reject(new Error("no id supplied"));
       }
 
+      obj.created_at = Date.now();
+      obj.updated_at = Date.now();
+
       return new PromiseA(function (resolve, reject) {
         var json = JSON.stringify(obj);
         var data = JSON.parse(json);
@@ -449,6 +455,7 @@ function wrap(db, dir) {
 
         //var vals = [];
         // removes known fields from data
+        data.updated_at = Date.now();
         var sql = strainUpdate(id, data/*, vals*/, sqlTpl);
 
         //console.log('[debug] DB.set() sql:', sql);
@@ -544,6 +551,7 @@ function wrap(db, dir) {
   }
 
   dir.forEach(function (dir) {
+    // TODO if directive is the same as existing dbsMap, skip it
     promises.push(createTable(dir).then(function (dbw) {
 
       dbsMap[dir.modelname] = dbw;