myPrayerJournal/src/migrate/Program.fs
2019-07-28 20:47:11 -05:00

95 lines
3.3 KiB
Forth

open Microsoft.FSharpLu.Json
open MyPrayerJournal
open Npgsql
open Raven.Client.Documents
type NpgsqlDataReader with
member this.getShort = this.GetOrdinal >> this.GetInt16
member this.getString = this.GetOrdinal >> this.GetString
member this.getTicks = this.GetOrdinal >> this.GetInt64 >> Ticks
member this.isNull = this.GetOrdinal >> this.IsDBNull
let pgConn () =
let c = new NpgsqlConnection "Host=severus-server;Database=mpj;Username=mpj;Password=devpassword;Application Name=myPrayerJournal"
c.Open ()
c
let isValidStatus stat =
try
(RequestAction.fromString >> ignore) stat
true
with _ -> false
let getHistory reqId =
use conn = pgConn ()
use cmd = conn.CreateCommand ()
cmd.CommandText <- """SELECT "asOf", status, text FROM mpj.history WHERE "requestId" = @reqId ORDER BY "asOf" """
(cmd.Parameters.Add >> ignore) (NpgsqlParameter ("@reqId", reqId :> obj))
use rdr = cmd.ExecuteReader ()
seq {
while rdr.Read () do
match (rdr.getString >> isValidStatus) "status" with
| true ->
yield
{ asOf = rdr.getTicks "asOf"
status = (rdr.getString >> RequestAction.fromString) "status"
text = match rdr.isNull "text" with true -> None | false -> (rdr.getString >> Some) "text"
}
| false ->
printf "Invalid status %s; skipped history entry %s/%i\n" (rdr.getString "status") reqId
((rdr.getTicks >> Ticks.toLong) "asOf")
}
|> List.ofSeq
let getNotes reqId =
use conn = pgConn ()
use cmd = conn.CreateCommand ()
cmd.CommandText <- """SELECT "asOf", notes FROM mpj.note WHERE "requestId" = @reqId"""
(cmd.Parameters.Add >> ignore) (NpgsqlParameter ("@reqId", reqId :> obj))
use rdr = cmd.ExecuteReader ()
seq {
while rdr.Read () do
yield
{ asOf = rdr.getTicks "asOf"
notes = rdr.getString "notes"
}
}
|> List.ofSeq
let migrateRequests (store : IDocumentStore) =
use sess = store.OpenSession ()
use conn = pgConn ()
use cmd = conn.CreateCommand ()
cmd.CommandText <-
"""SELECT "requestId", "enteredOn", "userId", "snoozedUntil", "showAfter", "recurType", "recurCount" FROM mpj.request"""
use rdr = cmd.ExecuteReader ()
while rdr.Read () do
let reqId = rdr.getString "requestId"
sess.Store (
{ Id = (RequestId.fromIdString >> RequestId.toString) reqId
enteredOn = rdr.getTicks "enteredOn"
userId = (rdr.getString >> UserId) "userId"
snoozedUntil = rdr.getTicks "snoozedUntil"
showAfter = rdr.getTicks "showAfter"
recurType = (rdr.getString >> Recurrence.fromString) "recurType"
recurCount = rdr.getShort "recurCount"
history = getHistory reqId
notes = getNotes reqId
})
sess.SaveChanges ()
[<EntryPoint>]
let main argv =
let raven = new DocumentStore (Urls = [| "http://localhost:8080" |], Database = "myPrayerJournal")
raven.Conventions.CustomizeJsonSerializer <-
fun x ->
x.Converters.Add (RequestIdJsonConverter ())
x.Converters.Add (TicksJsonConverter ())
x.Converters.Add (UserIdJsonConverter ())
x.Converters.Add (CompactUnionJsonConverter ())
let store = raven.Initialize ()
migrateRequests store
printfn "fin"
0 // return an integer exit code