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equery

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Sql generator library

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equery src equery_utils.erl
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src/equery_utils.erl 

-module(equery_utils).



-export([

         wrap/1,

         field_name/1,

         to_binary/1

        ]).



-spec wrap(iodata()) -> iolist().

wrap(F) ->

    ["\"", F, "\""].



-spec field_name(atom()) -> iolist().

field_name(Atom) when is_atom(Atom) ->

    wrap(atom_to_list(Atom));

field_name(Bin) when is_binary(Bin) ->

    wrap(Bin).



to_binary(Atom) when is_atom(Atom) ->

    atom_to_binary(Atom, latin1);

to_binary(Int) when is_integer(Int) ->

    integer_to_binary(Int);

to_binary(Bin) when is_binary(Bin) ->

    Bin.



-ifdef(TEST).

-include_lib("eunit/include/eunit.hrl").



to_binary_test() ->

    ?assertEqual(<<"atom">>, to_binary(atom)),

    ?assertEqual(<<"123">>, to_binary(123)),

    ?assertEqual(<<"bin">>, to_binary(<<"bin">>)).



-endif.