myPrayerJournal/src/MyPrayerJournal.Api/Data.fs
2019-07-27 20:02:01 -05:00

334 lines
12 KiB
Forth

namespace MyPrayerJournal
open FSharp.Control.Tasks.V2.ContextInsensitive
open Microsoft.FSharpLu
open Newtonsoft.Json
open Raven.Client.Documents
open Raven.Client.Documents.Indexes
open Raven.Client.Documents.Linq
open System
open System.Collections.Generic
/// JSON converter for request IDs
type RequestIdJsonConverter () =
inherit JsonConverter<RequestId> ()
override __.WriteJson(writer : JsonWriter, value : RequestId, _ : JsonSerializer) =
(RequestId.toString >> writer.WriteValue) value
override __.ReadJson(reader: JsonReader, _ : Type, _ : RequestId, _ : bool, _ : JsonSerializer) =
(string >> RequestId.fromIdString) reader.Value
/// JSON converter for user IDs
type UserIdJsonConverter () =
inherit JsonConverter<UserId> ()
override __.WriteJson(writer : JsonWriter, value : UserId, _ : JsonSerializer) =
(UserId.toString >> writer.WriteValue) value
override __.ReadJson(reader: JsonReader, _ : Type, _ : UserId, _ : bool, _ : JsonSerializer) =
(string >> UserId) reader.Value
/// JSON converter for Ticks
type TicksJsonConverter () =
inherit JsonConverter<Ticks> ()
override __.WriteJson(writer : JsonWriter, value : Ticks, _ : JsonSerializer) =
(Ticks.toLong >> writer.WriteValue) value
override __.ReadJson(reader: JsonReader, _ : Type, _ : Ticks, _ : bool, _ : JsonSerializer) =
(string >> int64 >> Ticks) reader.Value
/// Index requests by user ID
type Requests_ByUserId () as this =
inherit AbstractJavaScriptIndexCreationTask ()
do
this.Maps <- HashSet<string> [ "map('Requests', function (req) { return { userId : req.userId } })" ]
/// Index requests for a journal view
type Requests_AsJournal () as this =
inherit AbstractJavaScriptIndexCreationTask ()
do
this.Maps <- HashSet<string> [
"map('Requests', function (req) {
var hist = req.history
.filter(function (hist) { return hist.text !== null })
.sort(function (a, b) { return b - a })
return {
requestId : req.Id,
userId : req.userId,
text : hist[0].text,
asOf : req.history[req.history.length - 1].asOf,
snoozedUntil : req.snoozedUntil,
showAfter : req.showAfter,
recurType : req.recurType,
recurCount : req.recurCount
}
})"
]
/// Extensions on the IAsyncDocumentSession interface to support our data manipulation needs
[<AutoOpen>]
module Extensions =
open Raven.Client.Documents.Commands.Batches
open Raven.Client.Documents.Operations
open Raven.Client.Documents.Session
/// Format an RQL query by a strongly-typed index
let fromIndex (typ : Type) =
typ.Name.Replace ("_", "/") |> sprintf "from index '%s'"
/// Utility method to create a patch request to push an item on the end of a list
let listPush<'T> listName docId (item : 'T) =
let r = PatchRequest()
r.Script <- sprintf "this.%s.push(args.Item)" listName
r.Values.["Item"] <- item
PatchCommandData (docId, null, r, null)
/// Utility method to create a patch to update a single field
// TODO: think we need to include quotes if it's a string
let fieldUpdate<'T> fieldName docId (item : 'T) =
let r = PatchRequest()
r.Script <- sprintf "this.%s = args.Item" fieldName
r.Values.["Item"] <- item
PatchCommandData (docId, null, r, null)
// Extensions for the RavenDB session type
type IAsyncDocumentSession with
/// Add a history entry
member this.AddHistory (reqId : RequestId) (hist : History) =
listPush "history" (RequestId.toString reqId) hist
|> this.Advanced.Defer
/// Add a note
member this.AddNote (reqId : RequestId) (note : Note) =
listPush "notes" (RequestId.toString reqId) note
|> this.Advanced.Defer
/// Add a request
member this.AddRequest req =
this.StoreAsync (req, req.Id)
/// Retrieve all answered requests for the given user
// TODO: not right
member this.AnsweredRequests (userId : UserId) =
sprintf "%s where userId = '%s' and lastStatus = 'Answered' order by asOf as long desc"
(fromIndex typeof<Requests_AsJournal>) (UserId.toString userId)
|> this.Advanced.AsyncRawQuery<JournalRequest>
/// Retrieve the user's current journal
// TODO: probably not right either
member this.JournalByUserId (userId : UserId) =
sprintf "%s where userId = '%s' and lastStatus <> 'Answered' order by showAfter as long"
(fromIndex typeof<Requests_AsJournal>) (UserId.toString userId)
|> this.Advanced.AsyncRawQuery<JournalRequest>
/// Retrieve a request, including its history and notes, by its ID and user ID
member this.TryFullRequestById (reqId : RequestId) userId =
task {
let! req = RequestId.toString reqId |> this.LoadAsync
match Option.fromObject req with
| Some r when r.userId = userId -> return Some r
| _ -> return None
}
/// Retrieve a request by its ID and user ID (without notes and history)
member this.TryRequestById reqId userId =
task {
match! this.TryFullRequestById reqId userId with
| Some r -> return Some { r with history = []; notes = [] }
| _ -> return None
}
/// Retrieve notes for a request by its ID and user ID
member this.NotesById reqId userId =
task {
match! this.TryRequestById reqId userId with
| Some req -> return req.notes
| None -> return []
}
/// Retrieve a journal request by its ID and user ID
member this.TryJournalById (reqId : RequestId) userId =
task {
let! req =
this.Query<Request, Requests_AsJournal>()
.Where(fun x -> x.Id = (RequestId.toString reqId) && x.userId = userId)
.ProjectInto<JournalRequest>()
.FirstOrDefaultAsync ()
return Option.fromObject req
}
/// Update the recurrence for a request
member this.UpdateRecurrence (reqId : RequestId) (recurType : Recurrence) (recurCount : int16) =
let r = PatchRequest()
r.Script <- "this.recurType = args.Type; this.recurCount = args.Count"
r.Values.["Type"] <- string recurType
r.Values.["Count"] <- recurCount
PatchCommandData (RequestId.toString reqId, null, r, null) |> this.Advanced.Defer
/// Update the "show after" timestamp for a request
member this.UpdateShowAfter (reqId : RequestId) (showAfter : Ticks) =
fieldUpdate "showAfter" (RequestId.toString reqId) (Ticks.toLong showAfter)
|> this.Advanced.Defer
/// Update a snoozed request
member this.UpdateSnoozed (reqId : RequestId) (until : Ticks) =
let r = PatchRequest()
r.Script <- "this.snoozedUntil = args.Item; this.showAfter = args.Item"
r.Values.["Item"] <- Ticks.toLong until
PatchCommandData (RequestId.toString reqId, null, r, null) |> this.Advanced.Defer
(*
/// Entity Framework configuration for myPrayerJournal
module internal EFConfig =
open FSharp.EFCore.OptionConverter
open System.Collections.Generic
/// Configure EF properties for all entity types
let configure (mb : ModelBuilder) =
mb.Entity<History> (
fun m ->
m.ToTable "history" |> ignore
m.HasKey ("requestId", "asOf") |> ignore
m.Property(fun e -> e.requestId).IsRequired () |> ignore
m.Property(fun e -> e.asOf).IsRequired () |> ignore
m.Property(fun e -> e.status).IsRequired() |> ignore
m.Property(fun e -> e.text) |> ignore)
|> ignore
mb.Model.FindEntityType(typeof<History>).FindProperty("text").SetValueConverter (OptionConverter<string> ())
mb.Entity<Note> (
fun m ->
m.ToTable "note" |> ignore
m.HasKey ("requestId", "asOf") |> ignore
m.Property(fun e -> e.requestId).IsRequired () |> ignore
m.Property(fun e -> e.asOf).IsRequired () |> ignore
m.Property(fun e -> e.notes).IsRequired () |> ignore)
|> ignore
mb.Entity<Request> (
fun m ->
m.ToTable "request" |> ignore
m.HasKey(fun e -> e.requestId :> obj) |> ignore
m.Property(fun e -> e.requestId).IsRequired () |> ignore
m.Property(fun e -> e.enteredOn).IsRequired () |> ignore
m.Property(fun e -> e.userId).IsRequired () |> ignore
m.Property(fun e -> e.snoozedUntil).IsRequired () |> ignore
m.Property(fun e -> e.showAfter).IsRequired () |> ignore
m.Property(fun e -> e.recurType).IsRequired() |> ignore
m.Property(fun e -> e.recurCount).IsRequired() |> ignore
m.HasMany(fun e -> e.history :> IEnumerable<History>)
.WithOne()
.HasForeignKey(fun e -> e.requestId :> obj)
|> ignore
m.HasMany(fun e -> e.notes :> IEnumerable<Note>)
.WithOne()
.HasForeignKey(fun e -> e.requestId :> obj)
|> ignore)
|> ignore
mb.Query<JournalRequest> (
fun m ->
m.ToView "journal" |> ignore
m.Ignore(fun e -> e.history :> obj) |> ignore
m.Ignore(fun e -> e.notes :> obj) |> ignore)
|> ignore
open System.Linq
/// Data context
type AppDbContext (opts : DbContextOptions<AppDbContext>) =
inherit DbContext (opts)
[<DefaultValue>]
val mutable private history : DbSet<History>
[<DefaultValue>]
val mutable private notes : DbSet<Note>
[<DefaultValue>]
val mutable private requests : DbSet<Request>
[<DefaultValue>]
val mutable private journal : DbQuery<JournalRequest>
member this.History
with get () = this.history
and set v = this.history <- v
member this.Notes
with get () = this.notes
and set v = this.notes <- v
member this.Requests
with get () = this.requests
and set v = this.requests <- v
member this.Journal
with get () = this.journal
and set v = this.journal <- v
override __.OnModelCreating (mb : ModelBuilder) =
base.OnModelCreating mb
EFConfig.configure mb
/// Register a disconnected entity with the context, having the given state
member private this.RegisterAs<'TEntity when 'TEntity : not struct> state e =
this.Entry<'TEntity>(e).State <- state
/// Add an entity instance to the context
member this.AddEntry e =
this.RegisterAs EntityState.Added e
/// Update the entity instance's values
member this.UpdateEntry e =
this.RegisterAs EntityState.Modified e
/// Retrieve all answered requests for the given user
member this.AnsweredRequests userId : JournalRequest seq =
upcast this.Journal
.Where(fun r -> r.userId = userId && r.lastStatus = "Answered")
.OrderByDescending(fun r -> r.asOf)
/// Retrieve the user's current journal
member this.JournalByUserId userId : JournalRequest seq =
upcast this.Journal
.Where(fun r -> r.userId = userId && r.lastStatus <> "Answered")
.OrderBy(fun r -> r.showAfter)
/// Retrieve a request by its ID and user ID
member this.TryRequestById reqId userId =
task {
let! req = this.Requests.AsNoTracking().FirstOrDefaultAsync(fun r -> r.requestId = reqId && r.userId = userId)
return Option.fromObject req
}
/// Retrieve notes for a request by its ID and user ID
member this.NotesById reqId userId =
task {
match! this.TryRequestById reqId userId with
| Some _ -> return this.Notes.AsNoTracking().Where(fun n -> n.requestId = reqId) |> List.ofSeq
| None -> return []
}
/// Retrieve a journal request by its ID and user ID
member this.TryJournalById reqId userId =
task {
let! req = this.Journal.FirstOrDefaultAsync(fun r -> r.requestId = reqId && r.userId = userId)
return Option.fromObject req
}
/// Retrieve a request, including its history and notes, by its ID and user ID
member this.TryFullRequestById requestId userId =
task {
match! this.TryJournalById requestId userId with
| Some req ->
let! fullReq =
this.Requests.AsNoTracking()
.Include(fun r -> r.history)
.Include(fun r -> r.notes)
.FirstOrDefaultAsync(fun r -> r.requestId = requestId && r.userId = userId)
match Option.fromObject fullReq with
| Some _ -> return Some { req with history = List.ofSeq fullReq.history; notes = List.ofSeq fullReq.notes }
| None -> return None
| None -> return None
}
*)