Using EF Core with CosmosDB in F#
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open System | |
open Microsoft.EntityFrameworkCore | |
type [<CLIMutable>] LegacyForm = { | |
id: string // The form's UID. | |
Client: string | |
CompanyId: int | |
Number: string | |
InstallationAddress: string | |
Status: string | |
Type: string | |
Uid: string | |
ModelVersion: string | |
LastUpdatedUtc: DateTime | |
} | |
type LegacyFormsContext = | |
inherit DbContext | |
(* Based on Eelco Mulder's repo here: https://github.com/EelcoMulder/EFCoreWithFSharp *) | |
new() = { inherit DbContext() } | |
new(options: DbContextOptions<LegacyFormsContext>) = { inherit DbContext(options) } | |
override __.OnConfiguring (optionsBuilder: DbContextOptionsBuilder) = | |
optionsBuilder.UseCosmos( | |
"https://localhost:8081", | |
"C2y6yDjf5/R+ob0N8A7Cgv30VRDJIWEHLM+4QDU5DE2nQ9nDuVTqobD4b8mGGyPMbIZnqyMsEcaGQy67XIw/Jw==", | |
"MyDB") |> ignore | |
override __.OnModelCreating modelBuilder = | |
modelBuilder | |
.Entity<LegacyForm>() | |
.HasNoDiscriminator() | |
.ToContainer("LegacyForms") | |
|> ignore | |
[<DefaultValue>] | |
val mutable forms:DbSet<LegacyForm> | |
member x.Forms | |
with get() = x.forms | |
and set v = x.forms <- v | |
module LegacyFormsRepo = | |
let formById (context: LegacyFormsContext) id = | |
query { | |
for form in context.Forms do | |
where (form.id = id) | |
select form | |
exactlyOne | |
} |> (fun x -> if box x = null then None else Some x) | |
let formsForCompany (context: LegacyFormsContext) companyId = | |
query { | |
for form in context.Forms do | |
where (form.CompanyId = companyId) | |
select form | |
skip 4 | |
take 2 | |
} |> Array.ofSeq | |
[<EntryPoint>] | |
let main argv = | |
let context = new LegacyFormsContext() | |
let formId = "ec770405-692d-44cf-a5a7-0c0fd7ca1f3f" | |
let form = LegacyFormsRepo.formById context formId | |
let forms = LegacyFormsRepo.formsForCompany context 123 | |
forms |> printfn "%A" | |
Console.Read() |> ignore | |
0 | |
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