39 lines
1.1 KiB
OCaml
39 lines
1.1 KiB
OCaml
(* Grej is utilities *)
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module Syntax = struct
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let ( let* ) = Result.bind
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let ( let+ ) x f = Result.map f x
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end
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module Infix = struct
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let ( >>= ) = Result.bind
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let ( >>| ) x f = Result.map f x
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end
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open Syntax
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let set_version version =
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Caqti_request.exec ~oneshot:true
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Caqti_type.unit
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(Printf.sprintf "PRAGMA user_version = %Ld" version)
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let check_version
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?application_id:(desired_application_id=Builder_db.application_id)
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~user_version:desired_user_version
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(module Db : Caqti_blocking.CONNECTION) =
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let* application_id = Db.find Builder_db.get_application_id () in
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let* user_version = Db.find Builder_db.get_version () in
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if application_id <> desired_application_id || user_version <> desired_user_version
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then Error (`Wrong_version (application_id, user_version))
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else Ok ()
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let list_iter_result f xs =
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List.fold_left
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(fun r x -> let* () = r in f x)
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(Ok ())
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xs
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let foreign_keys on =
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let on = if on then "ON" else "OFF" in
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Caqti_request.exec
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Caqti_type.unit
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(Printf.sprintf "PRAGMA foreign_keys = %s" on)
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