https://github.com/kopera/erlang-sqlc

https://github.com/kopera/erlang-sqlc

Last synced: 4 months ago
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• Host: GitHub
• URL: https://github.com/kopera/erlang-sqlc
• Owner: kopera
• License: apache-2.0
• Created: 2024-06-24T10:04:51.000Z (almost 2 years ago)
• Default Branch: main
• Last Pushed: 2024-10-19T09:58:04.000Z (over 1 year ago)
• Last Synced: 2025-09-23T23:11:25.479Z (9 months ago)
• Language: Erlang
• Size: 30.3 KB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.md

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README

          
# sqlc

SQL compiler for Erlang

## Build

    $ rebar3 compile

## Example

```erlang

1> {ok, Module} = sqlc:string(example, "

    query by_id(:id uuid) returns user as

        select user_id as id, name, avatar_url, created_at

            from example.user

            where user_id = :id;

").

{ok,{codegen,example,

            [{by_id,1}],

            [{by_id,[{tree,clause,

                            {attr,87,[],none},

                            {clause,[{tree,map_expr,

                                        {attr,0,[],none},

                                        {map_expr,none,[{tree,map_field_exact,{attr,...},{...}}]}}],

                                    none,

                                    [{tree,map_expr,

                                        {attr,88,[],none},

                                        {map_expr,none,

                                                    [{tree,map_field_assoc,...},{tree,...}]}}]}}]}]}}

2> io:format("~s~n", [sqlc_module:to_erl(Module)]).

%% @private

-module(example).

-export([by_id/1]).

by_id(#{id := Id}) ->

    #{type => query,

    statement =>

        [<<"select user_id as id, name, avatar_url, created_at\n "

            "   from example.user\n    where user_id = ">>,

        <<"(">>,

        {parameter, #{key => {example, by_id, id}, value => Id}},

        <<"::", "uuid">>,

        <<")">>]}.

ok

```