Add data migration for v3.1

src/MyPrayerJournal.ConvertRecurrence/MyPrayerJournal.ConvertRecurrence.fsproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net6.0</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Compile Include="Program.fs" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\MyPrayerJournal\MyPrayerJournal.fsproj" />
+  </ItemGroup>
+
+</Project>

src/MyPrayerJournal.ConvertRecurrence/Program.fs

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+open MyPrayerJournal.Domain
+open NodaTime
+
+/// Request is the identifying record for a prayer request
+[<CLIMutable; NoComparison; NoEquality>]
+type OldRequest = {
+  /// The ID of the request
+  id           : RequestId
+  /// The time this request was initially entered
+  enteredOn    : Instant
+  /// The ID of the user to whom this request belongs ("sub" from the JWT)
+  userId       : UserId
+  /// The time at which this request should reappear in the user's journal by manual user choice
+  snoozedUntil : Instant
+  /// The time at which this request should reappear in the user's journal by recurrence
+  showAfter    : Instant
+  /// The type of recurrence for this request
+  recurType    : string
+  /// How many of the recurrence intervals should occur between appearances in the journal
+  recurCount   : int16
+  /// The history entries for this request
+  history      : History array
+  /// The notes for this request
+  notes        : Note array
+  }
+
+open LiteDB
+open MyPrayerJournal.Data
+
+let db = new LiteDatabase ("Filename=./mpj.db")
+Startup.ensureDb db
+
+/// Map the old recurrence to the new style
+let mapRecurrence old =
+  match old.recurType with
+  | "Days" -> Days old.recurCount
+  | "Hours" -> Hours old.recurCount
+  | "Weeks" -> Weeks old.recurCount
+  | _ -> Immediate
+
+/// Map the old request to the new request
+let convert old = {
+  id           = old.id
+  enteredOn    = old.enteredOn
+  userId       = old.userId
+  snoozedUntil = old.snoozedUntil
+  showAfter    = old.showAfter
+  recurrence   = mapRecurrence old
+  history      = Array.toList old.history
+  notes        = Array.toList old.notes
+  }
+
+/// Remove the old request, add the converted one (removes recurType / recurCount fields)
+let replace (req : Request) =
+  db.requests.Delete(Mapping.RequestId.toBson req.id) |> ignore
+  db.requests.Insert(req) |> ignore
+  db.Checkpoint()
+
+let reqs = db.GetCollection<OldRequest>("request").FindAll()
+let rList = reqs |> Seq.toList
+let mapped = rList |> List.map convert
+//let reqList = mapped |> List.ofSeq
+
+mapped |> List.iter replace
+
+// For more information see https://aka.ms/fsharp-console-apps
+printfn "Done"

src/MyPrayerJournal.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.30114.105
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "MyPrayerJournal", "MyPrayerJournal\MyPrayerJournal.fsproj", "{6BD5A3C8-F859-42A0-ACD7-A5819385E828}"
+EndProject
+Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "MyPrayerJournal.ConvertRecurrence", "MyPrayerJournal.ConvertRecurrence\MyPrayerJournal.ConvertRecurrence.fsproj", "{72B57736-8721-4636-A309-49FA4222416E}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{6BD5A3C8-F859-42A0-ACD7-A5819385E828}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{6BD5A3C8-F859-42A0-ACD7-A5819385E828}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{6BD5A3C8-F859-42A0-ACD7-A5819385E828}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{6BD5A3C8-F859-42A0-ACD7-A5819385E828}.Release|Any CPU.Build.0 = Release|Any CPU
+		{72B57736-8721-4636-A309-49FA4222416E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{72B57736-8721-4636-A309-49FA4222416E}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{72B57736-8721-4636-A309-49FA4222416E}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{72B57736-8721-4636-A309-49FA4222416E}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal