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-rw-r--r--demo/more/dbgrid.ur10
1 files changed, 10 insertions, 0 deletions
diff --git a/demo/more/dbgrid.ur b/demo/more/dbgrid.ur
index 15dfb857..e25396df 100644
--- a/demo/more/dbgrid.ur
+++ b/demo/more/dbgrid.ur
@@ -14,6 +14,11 @@ con colMeta = fn (row :: {Type}) (global_t :: (Type * Type)) =>
{Initialize : transaction global_t.1,
Handlers : global_t.1 -> colMeta' row global_t.2}
+con aggregateMeta = fn (row :: {Type}) (acc :: Type) =>
+ {Initial : acc,
+ Step : $row -> acc -> acc,
+ Display : acc -> xbody}
+
structure Direct = struct
con metaBase = fn actual_input :: (Type * Type) =>
{Display : actual_input.2 -> xbody,
@@ -243,6 +248,9 @@ functor Make(M : sig
val keyFolder : folder key
val rowFolder : folder row
val colsFolder : folder cols
+
+ con aggregates :: {Type}
+ val aggregates : $(map (aggregateMeta (key ++ row)) aggregates)
end) = struct
open Grid.Make(struct
val list = query (SELECT * FROM {{M.tab}} AS T) (fn r rs => return (r.T :: rs)) []
@@ -285,5 +293,7 @@ functor Make(M : sig
val cols = M.cols
val folder = M.colsFolder
+
+ val aggregates = M.aggregates
end)
end