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README.md

Memoria

Simple database for node.js

The library is in early development - some features are not implemented yet - but these are marked.

Memoria is designed especially for browser based games without much of relational data. Everything happens in memory, but the data is saved to a file. It is meant to be used with applications that doesn't share database with other instances.

Install:

npm install memoria

Create database:

Memoria(name, onReady);

Looks for file test.memoria to restore data. If file doesn't exists it will be created.

var db = Memoria("test", function(exists) {

    if(!exists) {

        /* some creational functions */    

    }       

});

Create collection:

/* just use it - collection will be created on the fly */
db("users");

Insertion:

db("users").insert({ name: "Vennril", age: 15, salary: 1000 });

or

db("users").insert({ ... }, { ... }, { ... });

Querrying:

db("users").one(selector).result;
db("users").all(selector).result;

Selectors:

Number (returns entry by ID):

db("users").one(32).result;

Object (equal check):

db("users").all({ age: 16 }).result;

Function (flexible querries):

/* get all items matching age > 32 */

db("users").all(function(r) {
  return r.age > 32;
}).result; 

Updating:

db("users").all({ age: 32 }).update({ salary: 1600 });

or

db("users").all({ age: 32 }).update(
  function(r) {
    r.salary *= 2;
});    

Removing:

db("users").all(selector).remove();