Added simple readme
Getty Ritter
8 years ago
1 | # Tansu-BerkeleyDB | |
2 | ||
3 | **WARNING: DO NOT USE THIS LIBRARY.** Like, seriously, there | |
4 | are a ton of other storage libraries that aren't fly-by-night | |
5 | like this one. | |
6 | ||
7 | This is a backend for the | |
8 | [`tansu`](http://github.com/aisamanra/tansu) | |
9 | library that supports storing and retrieving data using the | |
10 | [Berkeley DB](https://en.wikipedia.org/wiki/Berkeley_DB) | |
11 | library. Be aware that Berkeley DB, and therefore this code | |
12 | as well, is GPL-licensed, and thus cannot be used in commercial | |
13 | products. | |
14 | ||
15 | ## Example | |
16 | ||
17 | ~~~.haskell | |
18 | {-# LANGUAGE DeriveGeneric, DeriveAnyClass #-} | |
19 | ||
20 | module Main where | |
21 | ||
22 | import Data.Serialize (Serialize) | |
23 | import GHC.Generics (Generic) | |
24 | ||
25 | import Database.Tansu ((=:), get, run) | |
26 | import Database.Tansu.Backend.BerkeleyDb (withBerkeleyDb) | |
27 | ||
28 | data Person = Person { name :: String, age :: Int } | |
29 | deriving (Eq, Show, Generic, Serialize) | |
30 | ||
31 | main :: IO () | |
32 | main = withBerkeleyDb "sample.db" $ \ db -> do | |
33 | run db $ do | |
34 | "alex" =: Person "alex" 33 | |
35 | "blake" =: Person "blake" 22 | |
36 | ||
37 | Right age <- run db (age `fmap` get "blake") | |
38 | putStrLn $ "Blake's age is " ++ show age | |
39 | ~~~ | |
40 | ||
41 | ## Usage | |
42 | ||
43 | Please see the corresponding section of the | |
44 | [`tansu` library page](http://github.com/aisamanra/tansu#usage). |