Use scalar for custom count/exists

src/MyWebLog.Data/MyWebLog.Data.fsproj

@@ -5,7 +5,7 @@
 	</ItemGroup>
 
 	<ItemGroup>
-		<PackageReference Include="BitBadger.Npgsql.FSharp.Documents" Version="1.0.0-beta" />
+		<PackageReference Include="BitBadger.Npgsql.FSharp.Documents" Version="1.0.0-beta2" />
 		<PackageReference Include="Microsoft.Data.Sqlite" Version="6.0.8" />
 		<PackageReference Include="Microsoft.Extensions.Caching.Abstractions" Version="6.0.0" />
 		<PackageReference Include="Microsoft.Extensions.Configuration.Abstractions" Version="6.0.0" />

src/MyWebLog.Data/Postgres/PostgresCache.fs

@@ -48,13 +48,10 @@ type DistributedCache () =
     do
         task {
             let! exists =
-                Configuration.dataSource ()
-                |> Sql.fromDataSource
-                |> Sql.query $"
-                    SELECT EXISTS
+                Custom.scalar
+                    $"SELECT EXISTS
                         (SELECT 1 FROM pg_tables WHERE schemaname = 'public' AND tablename = 'session')
-                      AS {existsName}"
-                |> Sql.executeRowAsync Map.toExists
+                      AS {existsName}" [] Map.toExists
             if not exists then
                 do! Custom.nonQuery
                         "CREATE TABLE session (

src/MyWebLog.Data/Postgres/PostgresCategoryData.fs

@@ -38,19 +38,15 @@ type PostgresCategoryData (log : ILogger) =
                     |> List.ofSeq
                     |> arrayContains (nameof Post.empty.CategoryIds) id
                 let postCount =
-                    Configuration.dataSource ()
-                    |> Sql.fromDataSource
-                    |> Sql.query $"""
-                        SELECT COUNT(DISTINCT id) AS {countName}
-                          FROM {Table.Post}
-                         WHERE {Query.whereDataContains "@criteria"}
-                           AND {catIdSql}"""
-                    |> Sql.parameters
+                    Custom.scalar
+                        $"""SELECT COUNT(DISTINCT id) AS {countName}
+                              FROM {Table.Post}
+                             WHERE {Query.whereDataContains "@criteria"}
+                               AND {catIdSql}"""
                         [   "@criteria",
                                 Query.jsonbDocParam {| webLogDoc webLogId with Status = PostStatus.toString Published |}
                             catIdParams
-                        ]
-                    |> Sql.executeRowAsync Map.toCount
+                        ] Map.toCount
                     |> Async.AwaitTask
                     |> Async.RunSynchronously
                 it.Id, postCount)

src/MyWebLog.Data/Postgres/PostgresHelpers.fs

@@ -168,14 +168,11 @@ module Document =
     
     /// Determine whether a document exists with the given key for the given web log
     let existsByWebLog<'TKey> table (key : 'TKey) (keyFunc : 'TKey -> string) webLogId =
-        Configuration.dataSource ()
-        |> Sql.fromDataSource
-        |> Sql.query $"""
-            SELECT EXISTS (
-                       SELECT 1 FROM %s{table} WHERE id = @id AND {Query.whereDataContains "@criteria"}
-                   ) AS {existsName}"""
-        |> Sql.parameters [ "@id", Sql.string (keyFunc key); webLogContains webLogId ]
-        |> Sql.executeRowAsync Map.toExists
+        Custom.scalar
+            $""" SELECT EXISTS (
+                          SELECT 1 FROM %s{table} WHERE id = @id AND {Query.whereDataContains "@criteria"}
+                        ) AS {existsName}"""
+            [ "@id", Sql.string (keyFunc key); webLogContains webLogId ] Map.toExists
     
     /// Find a document by its ID for the given web log
     let findByIdAndWebLog<'TKey, 'TDoc> table (key : 'TKey) (keyFunc : 'TKey -> string) webLogId =

src/MyWebLog.Data/Postgres/PostgresPostData.fs

@@ -38,13 +38,7 @@ type PostgresPostData (log : ILogger) =
     /// Count posts in a status for the given web log
     let countByStatus status webLogId =
         log.LogTrace "Post.countByStatus"
-        Configuration.dataSource ()
-        |> Sql.fromDataSource
-        |> Sql.query
-            $"""SELECT COUNT(id) AS {countName} FROM {Table.Post} WHERE {Query.whereDataContains "@criteria"}"""
-        |> Sql.parameters
-            [ "@criteria", Query.jsonbDocParam {| webLogDoc webLogId with Status = PostStatus.toString status |} ]
-        |> Sql.executeRowAsync Map.toCount
+        Count.byContains Table.Post {| webLogDoc webLogId with Status = PostStatus.toString status |}
     
     /// Find a post by its ID for the given web log (excluding revisions)
     let findById postId webLogId =

src/MyWebLog.Data/Postgres/PostgresWebLogUserData.fs

@@ -21,14 +21,11 @@ type PostgresWebLogUserData (log : ILogger) =
         | Some _ ->
             let  criteria = Query.whereDataContains "@criteria"
             let! isAuthor =
-                Configuration.dataSource ()
-                |> Sql.fromDataSource
-                |> Sql.query $"
-                    SELECT (   EXISTS (SELECT 1 FROM {Table.Page} WHERE {criteria}
-                            OR EXISTS (SELECT 1 FROM {Table.Post} WHERE {criteria}))
-                        AS {existsName}"
-                |> Sql.parameters [ "@criteria", Query.jsonbDocParam {| AuthorId = userId |} ]
-                |> Sql.executeRowAsync Map.toExists
+                Custom.scalar
+                    $" SELECT (   EXISTS (SELECT 1 FROM {Table.Page} WHERE {criteria}
+                               OR EXISTS (SELECT 1 FROM {Table.Post} WHERE {criteria})
+                              ) AS {existsName}"
+                    [ "@criteria", Query.jsonbDocParam {| AuthorId = userId |} ] Map.toExists
             if isAuthor then
                 return Error "User has pages or posts; cannot delete"
             else