recordis

A Redis ORM for Erlang,

Overview

• ORM
• Extension Erlang Type: int,float,binary,term,map,proplist,sets
• Index for number and string
• Transaction(use SET NX)
• Callbacks(Before/After Create/Update/Delete)

Quick Start

-include("recordis.hrl").
-export([save/0,update/0,search/0,get/0,delete/0]).
%%% Create Model
-record(example,
{
    column = [{id, primary_key},{name, string},{age,int}],
    link = [],
    callback = example_callback(),
    index = [age],
    id, 
    name,
    age
}).
example_callback() ->
    #recordis_callback{before_new = [fun(#example{} = T) -> T#example{name = <<"123">>} end]}.
%%% Save to Redis
save()->
    {ok, C} = eredis:start_link("127.0.0.1", 6379, 1),
    recordis:use(C),
    R = #example{id = <<"1">>,name = <<"mmooyyii">>,age = 25},
    recordis:new(R).
%%% Update
update()->
    {ok, C} = eredis:start_link("127.0.0.1", 6379, 1),
    recordis:use(C),
    R = #example{id = <<"1">>,age = 26},
    recordis:update(R).
%%% Delete From Redis
delete()->
    {ok, C} = eredis:start_link("127.0.0.1", 6379, 1),
    recordis:use(C),
    R = #example{id = <<"1">>},
    recordis:delete(R).
%%% Get by Primary Key
get()->
    {ok, C} = eredis:start_link("127.0.0.1", 6379, 1),
    recordis:use(C),
    R = #example{id = <<"1">>},
    Ret1 = recordis:one(R),
    Ret2 = recordis:one(R,[name,age]),
    {Ret1,Ret2}. 
%%% Search On Index
search()->
    {ok, C} = eredis:start_link("127.0.0.1", 6379, 1),
    recordis:use(C),
    recordis_find:all(#example{}, #recordis_where{column = age, condition = {20,30}}).

Create Model

-record(example,
{
    column = [{id, primary_key},{name, string},{age,int}],
    link = [],
    callback = example_callback(),
    index = [],
    id, 
    name,
    age
}).

column

declare columns name and type

Recordis Type	Erlang Type	Describe
primary_key	binary()	unique
string	binary()
int	integer()
float	float()
term	any()
hash	maps()
set	sets()
sorted_set	proplist()
index_string	binary()	in 0-9 and A-Z and length less than 10

link

other record

callback

recordis_callback in "recordis.hrl"

index

Index column must is in column and column type is int,float or index_string.

columns name

Same name and same sort in column.

Warning

Do not opearte 'recordis' in process dict

License

Apache License 2.0