tagdb 0.0.3

db definition capable of handling different backends

#TagDB A simple library based on the idea that database interfaces need not be that complicated. Current supports mongo,redis and couchdb, couchbase support is still in the mix

##Examples A simple mongodb tagdb instance and request approach

    /* Located in .test/mongo.dart file */

     var mongo = TagDB.create('mongo',{
       'url':"mongodb://127.0.0.1/mydb",
       'port': 27017
     });
     mongo.open().then(Funcs.tag('booting mongodb')).then((f){

       mongo.query({
         '@':'insert',
         'db': 'mydb',
         'data':{'name':'john','age':31}
       }).then(Funcs.tag('mydb-insert'));

       mongo.query({
         '@':'all',
         'db':'mydb',
       }).then(Funcs.tag('mydb-all'));

       mongo.query({
         '@':'findOne',
         'db': 'mydb'
       }).then(Funcs.tag('mydb-findone'));

       mongo.query({
         '@':'update',
         'db': 'mydb',
         'criteria': [{'name':'alex'},{'\$set':{'status':'single'}},{'multiUpdate': true}]
       }).then(Funcs.tag('mydb-update'));

       mongo.query({
         '@':'find',
         'db': 'mydb',
         'criteria':[{'status': 'single'}]
       });

       return mongo.query({
         '@':'drop',
         'db': 'mydb',
       }).then(Funcs.tag('dropped my-db'));
       
     }).then(Funcs.tag('mydb-drop')).then((n){
         mongo.end().then((f)=> print('ending mongo'));
     }).catchError(Funcs.tag('mongodb error'));