Save device logs to rethinkdb.

lib/db/api.js

@@ -13,6 +13,17 @@ module.exports.saveUserAfterLogin = function(user) {
     }))
 }
 
+module.exports.saveDeviceLog = function(serial, entry) {
+  return db.run(r.table('logs').insert({
+    serial: entry.serial
+  , timestamp: r.epochTime(entry.timestamp)
+  , priority: entry.priority
+  , tag: entry.tag
+  , pid: entry.pid
+  , message: entry.message
+  }))
+}
+
 module.exports.saveDeviceStatus = function(serial, status) {
   return db.run(r.table('devices').get(serial).update({
       status: status