Mercurial > urweb
view demo/more/dbgrid.urs @ 1728:95d3b4f26f59
Ensure proper ordering of <script> execution, to bring identifiers into scope in time
author | Adam Chlipala <adam@chlipala.net> |
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date | Fri, 27 Apr 2012 09:43:09 -0400 |
parents | fbc3a0eef45a |
children |
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con rawMeta = fn t :: Type => {New : transaction t, Inj : sql_injectable t} con colMeta' = fn (row :: {Type}) (input :: Type) (filter :: Type) => {Header : string, Project : $row -> transaction input, Update : $row -> input -> transaction ($row), Display : input -> xbody, Edit : input -> xbody, Validate : input -> signal bool, CreateFilter : transaction filter, DisplayFilter : filter -> xbody, Filter : filter -> $row -> signal bool, Sort : option ($row -> $row -> bool)} con colMeta = fn (row :: {Type}) (global_input_filter :: (Type * Type * Type)) => {Initialize : transaction global_input_filter.1, Handlers : global_input_filter.1 -> colMeta' row global_input_filter.2 global_input_filter.3} con aggregateMeta = fn (row :: {Type}) (acc :: Type) => {Initial : acc, Step : $row -> acc -> acc, Display : acc -> xbody} structure Direct : sig con metaBase = fn actual_input_filter :: (Type * Type * Type) => {Display : actual_input_filter.2 -> xbody, Edit : actual_input_filter.2 -> xbody, Initialize : actual_input_filter.1 -> transaction actual_input_filter.2, Parse : actual_input_filter.2 -> signal (option actual_input_filter.1), CreateFilter : transaction actual_input_filter.3, DisplayFilter : actual_input_filter.3 -> xbody, Filter : actual_input_filter.3 -> actual_input_filter.1 -> signal bool, Sort : actual_input_filter.1 -> actual_input_filter.1 -> bool} datatype metaBoth actual input filter = NonNull of metaBase (actual, input, filter) * metaBase (option actual, input, filter) | Nullable of metaBase (actual, input, filter) con meta = fn global_actual_input_filter :: (Type * Type * Type * Type) => {Initialize : transaction global_actual_input_filter.1, Handlers : global_actual_input_filter.1 -> metaBoth global_actual_input_filter.2 global_actual_input_filter.3 global_actual_input_filter.4} con editableState :: (Type * Type * Type * Type) -> (Type * Type * Type) val editable : ts ::: (Type * Type * Type * Type) -> rest ::: {Type} -> nm :: Name -> [[nm] ~ rest] => string -> meta ts -> colMeta ([nm = ts.2] ++ rest) (editableState ts) con readOnlyState :: (Type * Type * Type * Type) -> (Type * Type * Type) val readOnly : ts ::: (Type * Type * Type * Type) -> rest ::: {Type} -> nm :: Name -> [[nm] ~ rest] => string -> meta ts -> colMeta ([nm = ts.2] ++ rest) (readOnlyState ts) val nullable : global ::: Type -> actual ::: Type -> input ::: Type -> filter ::: Type -> meta (global, actual, input, filter) -> meta (global, option actual, input, filter) type intGlobal type intInput type intFilter val int : meta (intGlobal, int, intInput, intFilter) type stringGlobal type stringInput type stringFilter val string : meta (stringGlobal, string, stringInput, stringFilter) type boolGlobal type boolInput type boolFilter val bool : meta (boolGlobal, bool, boolInput, boolFilter) functor Foreign (M : sig con row :: {Type} con t :: Type val show_t : show t val read_t : read t val eq_t : eq t val ord_t : ord t val inj_t : sql_injectable t con nm :: Name constraint [nm] ~ row table tab : ([nm = t] ++ row) val render : $([nm = t] ++ row) -> string end) : sig type global type input type filter val meta : meta (global, M.t, input, filter) end end con computedState :: (Type * Type * Type) val computed : row ::: {Type} -> t ::: Type -> show t -> string -> ($row -> t) -> colMeta row computedState val computedHtml : row ::: {Type} -> string -> ($row -> xbody) -> colMeta row computedState functor Make(M : sig con key :: {Type} con row :: {Type} constraint key ~ row table tab : (key ++ row) val raw : $(map rawMeta (key ++ row)) con cols :: {(Type * Type * Type)} val cols : $(map (colMeta (key ++ row)) cols) val keyFolder : folder key val rowFolder : folder row val colsFolder : folder cols con aggregates :: {Type} val aggregates : $(map (aggregateMeta (key ++ row)) aggregates) val aggFolder : folder aggregates val pageLength : option int end) : sig type grid val grid : transaction grid val sync : grid -> transaction unit val render : grid -> xbody val showSelection : grid -> source bool val selection : grid -> signal (list ($(M.key ++ M.row))) end