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Types supported now in model is binary and integer.

-define(BOOK, [{key, binary},
               {author, binary},
               {amount, integer},
               {title, binary}]).



Words will say to ewoc that it will create words, it will take a proplist containing options. Options implemented is wsize that takes a list. Where each element in list is size on word.

[{author, [{words, [{wsize, [6, 20]}]}]

This will say that field author should have two words with the size of 6 chars and 20 chars.


Rand returns random number. Either in a interval or as a single random number.

[{amount, [{rand, 40}]}]

Will randomize a number from 0 to 40 and return it to field amount.

[{amount, [{rand, {6, 20}}]}]

Will randomize a number between 6 and 20 and return it to field amount.

Depending on type in the model it will be as a integer or binary.


Uuid will use the uuid application to generate a uuid using uuid:get_v4().

[{key, [{uuid, []}]}]

This will generate a uuid to the field key.


Added a mfa functionality now, we can use other modules to generate data if we want.

This is our module:


-export([start/0, return/1]).

start() ->

return(N) ->
    N + 1.

Erlang R15B01 (erts-5.9.1) [source] [64-bit] [smp:3:3] [async-threads:0] [kernel-poll:false]

Eshell V5.9.1  (abort with ^G)
(ewoc@> ewoc_model_handler:create([{book, 2, [{author, [{mfa, {user, start, []}}]}, {title, [{mfa, {user, return, [4]}}]}]}]).