refactoring: move sql files

resources/sql/functions/citizen/find_citizen_by_id.sql

@@ -0,0 +1,17 @@
+create or replace function find_citizen_by_id(in id uuid, out resource json) language plpgsql as
+$$
+declare
+    _id alias for id;
+begin
+    select to_json(t) into resource
+    from (
+         select 
+            z.*, 
+            find_user_by_id(z.user_id) as "user"
+         from citizen as z
+         where z.id = _id
+     ) as t;
+end;
+$$;
+
+-- drop function if exists find_citizen_by_id(uuid, inout json);

resources/sql/functions/citizen/find_citizen_by_user_id.sql

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+create or replace function find_citizen_by_user_id(in user_id uuid, out resource json) language plpgsql as
+$$
+declare
+    _user_id alias for user_id;
+begin
+    select to_json(t) into resource
+    from (
+        select
+            z.*,
+            find_user_by_id(z.user_id) as "user"
+        from citizen as z
+        where z.user_id = _user_id
+    ) as t;
+end;
+$$;
+
+-- drop function if exists find_citizen_by_user_id(uuid, inout json);

resources/sql/functions/citizen/upsert_citizen.sql

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+create or replace procedure upsert_citizen(inout resource json)
+    language plpgsql as
+$$
+declare
+    new_id uuid;
+begin
+    insert into citizen (id, name, birthday, user_id, vote_annonymous, follow_annonymous)
+    select
+       coalesce(id, uuid_generate_v4()),
+       name,
+       birthday,
+       (resource#>>'{user, id}')::uuid,
+       coalesce(vote_annonymous, true),
+       coalesce(follow_annonymous, true)
+    from json_populate_record(null::citizen, resource)
+    on conflict (id) do update set
+        name = excluded.name,
+        birthday = excluded.birthday,
+        user_id = excluded.user_id,
+        vote_annonymous = excluded.vote_annonymous,
+        follow_annonymous = excluded.follow_annonymous
+    returning id into new_id;
+
+    select find_citizen_by_id(new_id) into resource;
+end;
+$$;
+
+-- drop procedure if exists insert_user(inout json);