Source file model.ml
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module ServiceMappingRow = struct
type t =
{ id : string
; member_id : string
; member_label : string
; created_at : Ptime.t
}
[@@deriving show, make, fields]
let t =
let encode m = Ok (m.id, (m.member_id, (m.member_label, m.created_at))) in
let decode (id, (member_id, (member_label, created_at))) =
Ok { id; member_id; member_label; created_at }
in
Caqti_type.(custom ~encode ~decode (tup2 string (tup2 string (tup2 string ptime))))
;;
let equal x y =
String.equal x.id y.id
&& String.equal x.member_id y.member_id
&& String.equal x.member_label y.member_label
;;
end
module QuestionnaireMappingRow = struct
type t =
{ service_mapper : string
; label : string
; questionnaire : string
; created_at : Ptime.t
; updated_at : Ptime.t
}
[@@deriving show, fields]
let t =
let encode m =
Ok (m.service_mapper, (m.label, (m.questionnaire, (m.created_at, m.updated_at))))
in
let decode (service_mapper, (label, (questionnaire, (created_at, updated_at)))) =
Ok { service_mapper; label; questionnaire; created_at; updated_at }
in
Caqti_type.(
custom ~encode ~decode (tup2 string (tup2 string (tup2 string (tup2 ptime ptime)))))
;;
let create ~service_mapper ?label ~questionnaire ?created_at ?updated_at () =
{ service_mapper
; label = label |> Option.value ~default:""
; questionnaire
; created_at = created_at |> Option.value ~default:(Ptime_clock.now ())
; updated_at = updated_at |> Option.value ~default:(Ptime_clock.now ())
}
;;
let equal x y =
String.equal x.service_mapper y.service_mapper
&& String.equal x.label y.label
&& String.equal x.questionnaire y.questionnaire
;;
end
module QuestionnaireMapping = struct
type t =
{ label : string
; questionnaire : Ask.Model.Questionnaire.t
; created_at : Ptime.t
; updated_at : Ptime.t
}
[@@deriving show, make, fields]
let to_mapping_row ~id model =
QuestionnaireMappingRow.create
~service_mapper:id
~label:model.label
~questionnaire:(Ask.Model.Questionnaire.uuid model.questionnaire)
~created_at:model.created_at
~updated_at:model.updated_at
()
;;
let equal x y =
String.equal x.label y.label
&& String.equal
(Ask.Model.Questionnaire.uuid x.questionnaire)
(Ask.Model.Questionnaire.uuid y.questionnaire)
;;
end
module Handler = struct
type t =
{ id : string
; member_id : string
; label : string
; questionnaires : (string * Ask.Model.Questionnaire.t) list
; created_at : Ptime.t
; updated_at : Ptime.t
}
[@@deriving show, fields]
let equal x y =
String.equal x.id y.id
&& String.equal x.member_id y.member_id
&& String.equal x.label y.label
&&
match CCList.is_empty x.questionnaires, CCList.is_empty y.questionnaires with
| true, true -> true
| false, false ->
let sort_label (x, _) (y, _) = String.compare x y in
CCList.for_all2
(fun (lx, qx) (ly, qy) ->
String.equal lx ly && Ask.Model.Questionnaire.equal qx qy)
(x.questionnaires |> CCList.stable_sort sort_label)
(y.questionnaires |> CCList.stable_sort sort_label)
| _ -> false
;;
let create
?id
~member_id
?label
~(questionnaires : (string * Ask.Model.Questionnaire.t) list)
?created_at
?updated_at
()
=
{ id = id |> Option.value ~default:(Uuidm.create `V4 |> Uuidm.to_string)
; member_id
; label = label |> Option.value ~default:""
; questionnaires
; created_at = created_at |> Option.value ~default:(Ptime_clock.now ())
; updated_at = updated_at |> Option.value ~default:(Ptime_clock.now ())
}
;;
let create_from_models
~(service_mapper : ServiceMappingRow.t)
~(questionnaire_mapper : QuestionnaireMapping.t list)
=
let rec newest = function
| [] -> Ptime_clock.now ()
| [ x ] -> x
| x :: xs -> if Ptime.is_later x ~than:(newest xs) then x else newest xs
in
let last_updated =
CCList.map
(fun (element : QuestionnaireMapping.t) -> element.updated_at)
questionnaire_mapper
|> newest
in
let questionnaires =
CCList.map
(fun (row : QuestionnaireMapping.t) -> row.label, row.questionnaire)
questionnaire_mapper
in
create
~id:service_mapper.id
~member_id:service_mapper.member_id
~label:service_mapper.member_label
~questionnaires
~created_at:service_mapper.created_at
~updated_at:last_updated
;;
let to_models (handler : t) =
let service_mapper =
ServiceMappingRow.make
~id:handler.id
~member_id:handler.member_id
~member_label:handler.label
~created_at:handler.created_at
in
let questionnaire_mapper =
List.map
(fun (label, questionnaire) ->
QuestionnaireMapping.make
~label
~questionnaire
~created_at:handler.created_at
~updated_at:handler.created_at)
handler.questionnaires
in
service_mapper, questionnaire_mapper
;;
end