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A zero-config SQLite wrapper written in CoffeeScript
JavaScript CoffeeScript
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NoSQLite - SQLite for Javascript

The beauty of SQLite is that it is very flexible. The beauty of Javascript is that it is very flexible.

The goal of NoSQLite is to exploit that even more than other SQLite libraries.

  • zero-config - No "create table", "alter table".
  • zero-schema - Just store my JS object in an intelligent way.
  • zero-SQL - just a simple DSL to find stuff, save stuff, or find_or_save stuff (ok remove stuff too).

Other goals

  • (core_data_mode branch) Core Data compatibility so you can work easily with iPhone and Cocoa databases.
  • (web branch) A web listener mode so you can invoke this from an HTTP client.
  • (coming) Support syncing 2 copies of a SQLite database (even if one is in Core Data format and even if one is remote, via the web listener interface).
  • (maybe) Support full text search.
  • (maybe) Be fully HTML 5 compatible. I need help with this for those people who want this in the browser.
  • Support anything that makes common uses cases with SQLite easier.

How to use

First make sure you have an HTML5 compatible sqlite driver. Node-sql is what I (mrjjwright) use and is the only one tested with NoSQLite at the moment.

Add necessary requires (examples are shown in CoffeeScript):

sqlite: require("node-sqlite")
nosql: require("nosqlite")

Open up a reference to your database and pass it to NoSQLite

db: nosqlite.connect(sqlite.openDatabaseSync("my_db.sqlite3"))

Now you are ready to start working with NoSQLite. NoSQLite is motivated by the idea that if we work simply with a one-to-one mapping between a JS object and a SQLite table (no joins), we can get an awful lot for free, and better than querying capablities than other NoSQL stores out there."foo", {x: 4, y: 5})

This creates a table called foo if it doesn't exist with 2 columns, x and y. To read this object out:

db.find("foo", {x: 4}, (err, res) ->
    foo: res

You can also save multiple objects in an array:"foo", [{x: 1, y: 2}, {x: 3, y: 4}])

You can find using predicates:

db.find("foo", {"x <=": 5}, (err, results) ->
    puts results.length
    # prints 3

You can add new attributes:

foo.z = 6"foo", foo)
#adds a column to your db called z

A common metaphor when I work with SQLite is to insert some records in the db if they don't already exist. Of course unique keys can help with this but sometimes they are not available so I added this convenience function:

objs: [{x: 5, y: 2}, {x: 17, y: 20}]
db.find_or_save("foo", {x: 1}, objs,  (err, results) ->
    #saves the first object, inserts the second
    puts results.size
    # prints 1

The above function applies the form of the predicate to each member of the array (the actual value of the predicate passed doesn't matter and you can use a single object as well). It then tries to find each object in the array and return it in the results. If it doesn't find it, NoSQLite will call an "insert or replace" SQLite function on each object. As usual if any tables or columns don't exist they will be dynamically created.

See the nosqlite tests for more info as well as the docco styled docs in the docs directory.

Currently Requires

  • node
  • CoffeeScript - fun, clean way to write JavaScript. Includes Cake to run the Cakefile and tests.
  • node-sqlite or another HTML5 compatible database - I am working on rewriting this to be async and be more HTML 5 compatible. You will have to get it and compile the node bindings and put it in your node require path
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