page list

The page list is now populated

src/myWebLog.Data/Entities.fs

@@ -90,6 +90,12 @@ with
     }
 
 
+/// An entry in the list of pages displayed as part of the web log (derived via query)
+type PageListEntry = {
+  permalink : string
+  title     : string
+  }
+
 /// A web log
 type WebLog = {
   /// The Id
@@ -100,7 +106,7 @@ type WebLog = {
   subtitle : string option
   /// The default page ("posts" or a page Id)
   defaultPage : string
-  /// The path of the theme (within /views)
+  /// The path of the theme (within /views/themes)
   themePath : string
   /// The URL base
   urlBase : string
@@ -108,7 +114,7 @@ type WebLog = {
   timeZone : string
   /// A list of pages to be rendered as part of the site navigation
   [<JsonIgnore>]
-  pageList : Page list
+  pageList : PageListEntry list
   }
 with
   /// An empty web log

src/myWebLog.Data/SetUp.fs

@@ -37,46 +37,52 @@ let checkTables cfg =
 let tbl cfg table = r.Db(cfg.database).Table(table)
 
 /// Create the given index
-let createIndex cfg table (index : string * obj) =
+let createIndex cfg table (index : string * (ReqlExpr -> obj) option) =
-  logStepStart (sprintf """  Creating index "%s" on table %s""" (fst index) table)
+  let idxName, idxFunc = index
-  (tbl cfg table).IndexCreate(fst index, snd index).RunResultAsync(cfg.conn) |> await |> ignore
+  logStepStart (sprintf """  Creating index "%s" on table %s""" idxName table)
-  (tbl cfg table).IndexWait(fst index).RunAtomAsync(cfg.conn)                |> await |> ignore
+  match idxFunc with
+  | Some f -> (tbl cfg table).IndexCreate(idxName, f).RunResultAsync(cfg.conn)
+  | None   -> (tbl cfg table).IndexCreate(idxName   ).RunResultAsync(cfg.conn)
+  |> await |> ignore
+  (tbl cfg table).IndexWait(idxName).RunAtomAsync(cfg.conn) |> await |> ignore
   logStepDone ()
 
 /// Ensure that the given indexes exist, and create them if required
-let ensureIndexes cfg (indexes : (string * (string * obj) list) list) =
+let ensureIndexes cfg (indexes : (string * (string * (ReqlExpr -> obj) option) list) list) =
-  indexes
+  let ensureForTable tabl =
-  |> List.iter (fun tabl -> let idx = (tbl cfg (fst tabl)).IndexList().RunListAsync<string>(cfg.conn) |> await
+    let idx = (tbl cfg (fst tabl)).IndexList().RunListAsync<string>(cfg.conn) |> await
     snd tabl
     |> List.iter (fun index -> match idx.Contains (fst index) with
                                 | true -> ()
-                                                       | _    -> createIndex cfg (fst tabl) index))
+                                | _    -> createIndex cfg (fst tabl) index)
+  indexes
+  |> List.iter ensureForTable
 
 /// Create an index on a single field
 let singleField (name : string) : obj = upcast (fun row -> (row :> ReqlExpr).[name])
 
 /// Create an index on web log Id and the given field
-let webLogField (name : string) : obj = upcast (fun row -> r.Array((row :> ReqlExpr).["webLogId"], row.[name]))
+let webLogField (name : string) : (ReqlExpr -> obj) option =
+  Some <| fun row -> upcast r.Array(row.["webLogId"], row.[name])
 
 /// Ensure all the required indexes exist
 let checkIndexes cfg =
   logStep "|> Checking indexes"
-  [ Table.Category, [ "webLogId", singleField "webLogId"
+  [ Table.Category, [ "webLogId", None
                       "slug",     webLogField "slug"
                     ]
-    Table.Comment, [ "postId", singleField "postId"
+    Table.Comment, [ "postId", None
                    ]
-    Table.Page, [ "webLogId",  singleField "webLogId"
+    Table.Page, [ "webLogId",  None
                   "permalink", webLogField "permalink"
-                  "pageList",  webLogField "showInPageList"
                 ]
-    Table.Post, [ "webLogId",        singleField "webLogId"
+    Table.Post, [ "webLogId",        None
                   "webLogAndStatus", webLogField "status"
                   "permalink",       webLogField "permalink"
                 ]
-    Table.User, [ "logOn", upcast (fun row -> r.Array((row :> ReqlExpr).["userName"], row.["passwordHash"]))
+    Table.User, [ "logOn", Some <| fun row -> upcast r.Array(row.["userName"], row.["passwordHash"])
                 ]
-    Table.WebLog, [ "urlBase", singleField "urlBase"
+    Table.WebLog, [ "urlBase", None
                   ]
   ]
   |> ensureIndexes cfg

src/myWebLog.Data/WebLog.fs

@@ -7,18 +7,20 @@ open System.Dynamic
 
 let private r = RethinkDb.Driver.RethinkDB.R
 
-type PageList = { pageList : obj }
-
 /// Detemine the web log by the URL base
+// TODO: see if we can make .Merge work for page list even though the attribute is ignored
+//       (needs to be ignored for serialization, but included for deserialization)
 let tryFindWebLogByUrlBase conn (urlBase : string) =
-  r.Table(Table.WebLog)
+  let webLog = r.Table(Table.WebLog)
                 .GetAll(urlBase).OptArg("index", "urlBase")
-    .Merge(fun webLog -> { pageList =
-                             r.Table(Table.Page)
-                              .GetAll(webLog.["id"], true).OptArg("index", "pageList")
-                              .OrderBy("title")
-                              .Pluck("title", "permalink")
-                              .CoerceTo("array") })
                 .RunCursorAsync<WebLog>(conn)
               |> await
               |> Seq.tryHead
+  match webLog with
+  | Some w -> Some { w with pageList = r.Table(Table.Page)
+                                        .GetAll(w.id).OptArg("index", "webLogId")
+                                        .Filter(fun pg -> pg.["showInPageList"].Eq(true))
+                                        .OrderBy("title")
+                                        .Pluck("title", "permalink")
+                                        .RunListAsync<PageListEntry>(conn) |> await |> Seq.toList }
+  | None   -> None

src/myWebLog.Web/ViewModels.fs

@@ -55,6 +55,8 @@ type MyWebLogModel(ctx : NancyContext, webLog : WebLog) =
   member this.user = ctx.Request.PersistableSession.GetOrDefault<User>(Keys.User, User.empty)
   /// The title of the page
   member val pageTitle = "" with get, set
+  /// The name and version of the application
+  member this.generator = sprintf "myWebLog %s" (ctx.Items.[Keys.Version].ToString ())
   /// The request start time
   member this.requestStart = ctx.Items.[Keys.RequestStart] :?> int64
   /// Is a user authenticated for this request?

src/myWebLog/views/themes/default/layout.html

@@ -1,6 +1,7 @@
 <!DOCTYPE html>
 <html>
 <head>
+  <meta charset="utf-8"/>
   <meta name="viewport" content="width=device-width" />
   <meta name="generator" content="@Model.generator" />
   <title>@Model.pageTitle | @Model.webLog.name</title>