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meetingGrid.ur
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meetingGrid.ur
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style meeting_default
style meeting_selected
style meeting_conflict
open Bootstrap3
functor Make(M : sig
con homeKey1 :: Name
type homeKeyT
con homeKeyR :: {Type}
constraint [homeKey1] ~ homeKeyR
con homeKey = [homeKey1 = homeKeyT] ++ homeKeyR
con homeOffice :: {Type}
con homeHardConst :: {Type}
con homeSoftConst :: {Type}
con homeRest :: {Type}
constraint homeKey ~ homeRest
constraint (homeKey ++ homeRest) ~ homeOffice
constraint (homeKey ++ homeRest ++ homeOffice) ~ homeSoftConst
constraint (homeKey ++ homeRest ++ homeOffice ++ homeSoftConst) ~ homeHardConst
con homeKeyName :: Name
con homeOtherConstraints :: {{Unit}}
constraint [homeKeyName] ~ homeOtherConstraints
val home : sql_table (homeKey ++ homeOffice ++ homeSoftConst ++ homeHardConst ++ homeRest) ([homeKeyName = map (fn _ => ()) homeKey] ++ homeOtherConstraints)
val homeInj : $(map sql_injectable_prim homeKey)
val homeKeyFl : folder homeKey
val homeKeyShow : show $homeKey
val homeKeyRead : read $homeKey
val homeKeyEq : $(map eq homeKey)
val homeKeyOrd : $(map ord homeKey)
val officeFl : folder homeOffice
val officeShow : show $homeOffice
val homeSoftConstFl : folder homeSoftConst
val homeSoftConstInj : $(map sql_injectable homeSoftConst)
val homeSoftConst : $homeSoftConst
val homeHardConstFl : folder homeHardConst
val homeHardConstInj : $(map sql_injectable homeHardConst)
val homeHardConst : $homeHardConst
con awayKey1 :: Name
type awayKeyT
con awayKeyR :: {Type}
constraint [awayKey1] ~ awayKeyR
con awayKey = [awayKey1 = awayKeyT] ++ awayKeyR
con awayConst :: {Type}
con awayFilter :: {Type}
con awayRest :: {Type}
constraint awayKey ~ awayRest
constraint (awayKey ++ awayRest) ~ awayConst
constraint (awayKey ++ awayRest ++ awayConst) ~ awayFilter
con awayKeyName :: Name
con awayOtherConstraints :: {{Unit}}
constraint [awayKeyName] ~ awayOtherConstraints
val away : sql_table (awayKey ++ awayConst ++ awayFilter ++ awayRest) ([awayKeyName = map (fn _ => ()) awayKey] ++ awayOtherConstraints)
val awayInj : $(map sql_injectable_prim awayKey)
val awayKeyFl : folder awayKey
val awayKeyShow : show $awayKey
val awayKeyRead : read $awayKey
val awayKeyEq : $(map eq awayKey)
val awayKeyOrd : $(map ord awayKey)
val awayConstFl : folder awayConst
val awayConstInj : $(map sql_injectable awayConst)
val awayConst : $awayConst
val awayFilterFl : folder awayFilter
con timeKey1 :: Name
type timeKeyT
con timeKeyR :: {Type}
constraint [timeKey1] ~ timeKeyR
con timeKey = [timeKey1 = timeKeyT] ++ timeKeyR
con timeRest :: {Type}
constraint timeKey ~ timeRest
con timeKeyName :: Name
con timeOtherConstraints :: {{Unit}}
constraint [timeKeyName] ~ timeOtherConstraints
val time : sql_table (timeKey ++ timeRest) ([timeKeyName = map (fn _ => ()) timeKey] ++ timeOtherConstraints)
val timeInj : $(map sql_injectable_prim timeKey)
val timeKeyFl : folder timeKey
val timeKeyShow : show $timeKey
val timeKeyRead : read $timeKey
val timeKeyEq : $(map eq timeKey)
constraint homeKey ~ awayKey
constraint (homeKey ++ awayKey) ~ timeKey
constraint homeOffice ~ timeKey
constraint (homeKey ++ awayKey) ~ [ByHome, Channel]
val amHome : transaction (option $homeKey)
val amAway : transaction (option $awayKey)
end) = struct
open M
val homeKeyEq : eq $homeKey = @@Record.eq [homeKey] homeKeyEq homeKeyFl
val awayKeyEq : eq $awayKey = @@Record.eq [awayKey] awayKeyEq awayKeyFl
val timeKeyEq : eq $timeKey = @@Record.eq [timeKey] timeKeyEq timeKeyFl
val homeKeyOrd : ord $homeKey = @@Record.ord [homeKey] homeKeyOrd homeKeyFl
val awayKeyOrd : ord $awayKey = @@Record.ord [awayKey] awayKeyOrd awayKeyFl
table meeting : (homeKey ++ timeKey ++ awayKey)
PRIMARY KEY {{@primary_key [homeKey1] [homeKeyR ++ timeKey ++ awayKey] ! !
(homeInj ++ timeInj ++ awayInj)}},
{{one_constraint [#Home] (@Sql.easy_foreign ! ! ! ! ! ! homeKeyFl home)}},
{{one_constraint [#Away] (@Sql.easy_foreign ! ! ! ! ! ! awayKeyFl away)}},
{{one_constraint [#Time] (@Sql.easy_foreign ! ! ! ! ! ! timeKeyFl time)}}
datatype operation = Add | Del
type action = { Operation : operation, Home : $homeKey, Away : $awayKey, Time : $timeKey }
table globalListeners : { Channel : channel action }
type home_action = { Operation : operation, Away : $awayKey, Time : $timeKey, Place : option unit }
table homeListeners : ([Channel = channel home_action] ++ homeKey)
{{one_constraint [#Home] (@Sql.easy_foreign ! ! ! ! ! ! homeKeyFl home)}}
type away_action = { Operation : operation, Home : $homeKey, Time : $timeKey, Place : option $homeOffice }
table awayListeners : ([Channel = channel away_action] ++ awayKey)
{{one_constraint [#Away] (@Sql.easy_foreign ! ! ! ! ! ! awayKeyFl away)}}
table preference : ([ByHome = bool] ++ homeKey ++ awayKey)
PRIMARY KEY {{@primary_key [#ByHome] [homeKey ++ awayKey] ! !
({ByHome = _} ++ homeInj ++ awayInj)}},
{{one_constraint [#Home] (@Sql.easy_foreign ! ! ! ! ! ! homeKeyFl home)}},
{{one_constraint [#Away] (@Sql.easy_foreign ! ! ! ! ! ! awayKeyFl away)}}
table homeUnavailable : (homeKey ++ timeKey)
PRIMARY KEY {{@primary_key [homeKey1] [homeKeyR ++ timeKey] ! !
(homeInj ++ timeInj)}},
{{one_constraint [#Home] (@Sql.easy_foreign ! ! ! ! ! ! homeKeyFl home)}},
{{one_constraint [#Time] (@Sql.easy_foreign ! ! ! ! ! ! timeKeyFl time)}}
table awayUnavailable : (awayKey ++ timeKey)
PRIMARY KEY {{@primary_key [awayKey1] [awayKeyR ++ timeKey] ! !
(awayInj ++ timeInj)}},
{{one_constraint [#Away] (@Sql.easy_foreign ! ! ! ! ! ! awayKeyFl away)}},
{{one_constraint [#Time] (@Sql.easy_foreign ! ! ! ! ! ! timeKeyFl time)}}
con all = homeKey ++ awayKey ++ timeKey
val allFl = @Folder.concat ! homeKeyFl (@Folder.concat ! timeKeyFl awayKeyFl)
val allInj = @mp [sql_injectable_prim] [sql_injectable] @@sql_prim allFl (homeInj ++ awayInj ++ timeInj)
val homeInj' = @mp [sql_injectable_prim] [sql_injectable] @@sql_prim homeKeyFl homeInj
val awayInj' = @mp [sql_injectable_prim] [sql_injectable] @@sql_prim awayKeyFl awayInj
val timeInj' = @mp [sql_injectable_prim] [sql_injectable] @@sql_prim timeKeyFl timeInj
fun addMeeting r =
office <- oneRow1 (SELECT home.{{homeOffice}}
FROM home
WHERE {@@Sql.easy_where [#Home] [homeKey] [_] [_] [_] [_]
! ! homeInj' homeKeyFl (r --- awayKey --- timeKey)});
@@Sql.easy_insert [all] [_] allInj allFl meeting r;
queryI1 (SELECT * FROM globalListeners)
(fn i => send i.Channel {Operation = Add,
Home = r --- awayKey --- timeKey,
Away = r --- homeKey --- timeKey,
Time = r --- awayKey --- homeKey});
queryI1 (SELECT * FROM homeListeners
WHERE {@@Sql.easy_where [#HomeListeners] [homeKey] [_] [_] [_] [_]
! ! homeInj' homeKeyFl (r --- awayKey --- timeKey)})
(fn i => send i.Channel {Operation = Add,
Away = r --- homeKey --- timeKey,
Time = r --- awayKey --- homeKey,
Place = Some ()});
queryI1 (SELECT * FROM awayListeners
WHERE {@@Sql.easy_where [#AwayListeners] [awayKey] [_] [_] [_] [_]
! ! awayInj' awayKeyFl (r --- homeKey --- timeKey)})
(fn i => send i.Channel {Operation = Add,
Home = r --- awayKey --- timeKey,
Time = r --- awayKey --- homeKey,
Place = Some office})
fun delMeeting r =
dml (DELETE FROM meeting
WHERE {@@Sql.easy_where [#T] [all] [_] [_] [_] [_]
! ! allInj allFl r});
queryI1 (SELECT * FROM globalListeners)
(fn i => send i.Channel {Operation = Del,
Home = r --- awayKey --- timeKey,
Away = r --- homeKey --- timeKey,
Time = r --- awayKey --- homeKey});
queryI1 (SELECT * FROM homeListeners
WHERE {@@Sql.easy_where [#HomeListeners] [homeKey] [_] [_] [_] [_]
! ! homeInj' homeKeyFl (r --- awayKey --- timeKey)})
(fn i => send i.Channel {Operation = Del,
Away = r --- homeKey --- timeKey,
Time = r --- awayKey --- homeKey,
Place = None});
queryI1 (SELECT * FROM awayListeners
WHERE {@@Sql.easy_where [#AwayListeners] [awayKey] [_] [_] [_] [_]
! ! awayInj' awayKeyFl (r --- homeKey --- timeKey)})
(fn i => send i.Channel {Operation = Del,
Home = r --- awayKey --- timeKey,
Time = r --- awayKey --- homeKey,
Place = None})
(* This functor helps us abstract over the two directions.
* We want symmetric functionality for each. *)
functor Side(N : sig
con usKey :: {Type}
con usOffice :: {Type}
con usSoftConst :: {Type}
con usHardConst :: {Type}
con usOther :: {Type}
con themKey :: {Type}
con themOffice :: {Type}
con themSoftConst :: {Type}
con themHardConst :: {Type}
con themOther :: {Type}
(* Note: the "office" fields here do double-duty as "filter" fields in the eventual invocation! *)
constraint usKey ~ usOther
constraint (usKey ++ usOther) ~ usOffice
constraint (usKey ++ usOther ++ usOffice) ~ usSoftConst
constraint (usKey ++ usOther ++ usOffice ++ usSoftConst) ~ usHardConst
constraint themKey ~ themOther
constraint (themKey ++ themOther) ~ themOffice
constraint (themKey ++ themOther ++ themOffice) ~ themSoftConst
constraint (themKey ++ themOther ++ themOffice ++ themSoftConst) ~ themHardConst
constraint usKey ~ themKey
constraint (usKey ++ themKey) ~ timeKey
constraint themOffice ~ timeKey
constraint (usKey ++ themKey) ~ [ByHome]
val localized : { Home : $homeKey, Away : $awayKey }
-> { Us : $usKey, Them : $themKey }
val canonical : { Us : $usKey, Them : $themKey }
-> { Home : $homeKey, Away : $awayKey }
table us : (usKey ++ usOffice ++ usSoftConst ++ usHardConst ++ usOther)
table them : (themKey ++ themOffice ++ themSoftConst ++ themHardConst ++ themOther)
table preference : ([ByHome = bool] ++ usKey ++ themKey)
table unavailable : (usKey ++ timeKey)
table meeting : (usKey ++ themKey ++ timeKey)
constraint usKey ~ [Channel]
type usChannel
val usChannel : usChannel
-> { Operation : operation,
Them : $themKey,
Time : $timeKey,
Place : option $themOffice }
table usListeners : ([Channel = channel usChannel] ++ usKey)
val usFl : folder usKey
val themFl : folder themKey
val usInj : $(map sql_injectable_prim usKey)
val themInj : $(map sql_injectable_prim themKey)
val usShow : show $usKey
val themShow : show $themKey
val themRead : read $themKey
val usEq : eq $usKey
val usOrd : ord $usKey
val themEq : eq $themKey
val usOfficeFl : folder usOffice
val usOfficeShow : show $usOffice
val themOfficeShow : show $themOffice
val usSoftConstFl : folder usSoftConst
val usSoftConstInj : $(map sql_injectable usSoftConst)
val usSoftConst : $usSoftConst
val usHardConstFl : folder usHardConst
val usHardConstInj : $(map sql_injectable usHardConst)
val usHardConst : $usHardConst
val themSoftConstFl : folder themSoftConst
val themSoftConstInj : $(map sql_injectable themSoftConst)
val themSoftConst : $themSoftConst
val themHardConstFl : folder themHardConst
val themHardConstInj : $(map sql_injectable themHardConst)
val themHardConst : $themHardConst
val byHome : bool
val amUs : transaction (option $usKey)
end) : sig
(* Display a full, editable grid of all meetings (rows: aways, columns: times).
* The signal function can be used to control which rows are displayed. *)
structure FullGrid : Ui.S where type input = $(N.usKey ++ N.usOffice) -> signal bool
(* Display a read-only record of all records for an away. *)
structure One : Ui.S where type input = $N.usKey
(* Inputing meeting preferences for an away *)
structure Prefs : Ui.S where type input = $N.usKey
(* Inputing schedule constraints for an away *)
structure Unavail : Ui.S where type input = $N.usKey
(* Delete all of this person's meetings. *)
val deleteFor : $N.usKey -> transaction unit
end = struct
open N
con all = usKey ++ themKey ++ timeKey
val allFl = @Folder.concat ! usFl (@Folder.concat ! timeKeyFl themFl)
val allInj = @mp [sql_injectable_prim] [sql_injectable] @@sql_prim allFl (usInj ++ themInj ++ timeInj)
val usInj' = @mp [sql_injectable_prim] [sql_injectable] @@sql_prim usFl usInj
val themInj' = @mp [sql_injectable_prim] [sql_injectable] @@sql_prim themFl themInj
fun canonicalized r =
let
val r' = canonical {Us = r --- timeKey --- themKey,
Them = r --- timeKey --- usKey}
in
r --- usKey --- themKey ++ r'.Home ++ r'.Away
end
val addMeeting r = addMeeting (canonicalized r)
val delMeeting r = delMeeting (canonicalized r)
structure FullGrid = struct
type themSet = list ($themKey * int (* number of meetings this them has at this time *))
type timeMap = list ($timeKey * bool (* available? *) * themSet)
type usMap = list ($usKey * $usOffice * timeMap)
type input = _
type a = _
val create =
allTimes <- queryL1 (SELECT time.{{timeKey}}
FROM time
ORDER BY {{{@Sql.order_by timeKeyFl
(@Sql.some_fields [#Time] [timeKey] ! ! timeKeyFl)
sql_desc}}});
let
(* A bit of a little dance to initialize the meeting states,
* including blank entries for unused us/time pairs *)
fun initMap (acc : usMap)
(rows : list {Meeting : $all, ThisTime : option int})
(uses : list $(usKey ++ usOffice))
(times : list $timeKey)
(unavails : list $(usKey ++ timeKey))
(themsDone : themSet)
(timesDone : timeMap)
: usMap =
case uses of
[] =>
(* Finished with all uses. Done! *)
List.rev acc
| us :: uses' =>
case times of
[] =>
(* Finished with one us. Move to next. *)
initMap ((us --- usOffice, us --- usKey, List.rev timesDone) :: acc)
rows
uses'
allTimes
unavails
[]
[]
| time :: times' =>
(* Check if the next row is about this time. *)
case rows of
[] =>
(* Nope. *)
let
val (available, unavails') =
case unavails of
[] => (True, [])
| r :: unavails' =>
if r --- timeKey = us --- usOffice
&& @eq timeKeyEq (r --- usKey) time then
(False, unavails')
else
(True, unavails)
in
initMap acc
[]
uses
times'
unavails'
[]
((time, available, List.rev themsDone) :: timesDone)
end
| {Meeting = row, ThisTime = tt} :: rows' =>
if row --- themKey --- timeKey < us --- usOffice then
(* We've encountered a meeting for an invalid us. Skip it! *)
initMap acc rows' uses times unavails themsDone timesDone
else if row --- themKey --- timeKey = us --- usOffice
&& @eq timeKeyEq (row --- usKey --- themKey) time then
(* Aha, a match! Record this meeting. *)
initMap acc
rows'
uses
times
unavails
((row --- usKey --- timeKey, Option.get 1 tt) :: themsDone)
timesDone
else
(* No match. On to next time. *)
let
val (available, unavails') =
case unavails of
[] => (True, [])
| r :: unavails' =>
if r --- timeKey = us --- usOffice && @eq timeKeyEq (r --- usKey) time then
(False, unavails')
else
(True, unavails)
in
initMap acc
rows
uses
times'
unavails'
[]
((time, available, List.rev themsDone) :: timesDone)
end
in
uses <- queryL1 (SELECT us.{{usKey}}, us.{{usOffice}}
FROM us
WHERE {@@Sql.easy_where [#Us] [usHardConst ++ usSoftConst]
[usKey ++ usOffice ++ usOther] [_] [_] [_]
! ! (usHardConstInj ++ usSoftConstInj)
(@Folder.concat ! usHardConstFl usSoftConstFl)
(usHardConst ++ usSoftConst)}
ORDER BY {{{@Sql.order_by usFl
(@Sql.some_fields [#Us] [usKey] ! ! usFl)
sql_desc}}});
thems <- queryL1 (SELECT them.{{themKey}}
FROM them
WHERE {@@Sql.easy_where [#Them] [themHardConst ++ themSoftConst]
[themKey ++ themOffice ++ themOther] [_] [_] [_]
! ! (themHardConstInj ++ themSoftConstInj)
(@Folder.concat ! themHardConstFl themSoftConstFl)
(themHardConst ++ themSoftConst)}
ORDER BY {{{@Sql.order_by themFl
(@Sql.some_fields [#Them] [themKey] ! ! themFl)
sql_desc}}});
unavails <- queryL1 (SELECT unavailable.{{usKey}}, unavailable.{{timeKey}}
FROM unavailable JOIN us
ON {@@Sql.easy_join [#Unavailable] [#Us]
[usKey] [timeKey] [usOffice ++ usSoftConst ++ usHardConst ++ usOther]
[_] [_] [_] ! ! ! ! usFl}
WHERE {@@Sql.easy_where [#Us] [usHardConst ++ usSoftConst]
[usKey ++ usOffice ++ usOther] [_] [_] [_]
! ! (usHardConstInj ++ usSoftConstInj)
(@Folder.concat ! usHardConstFl usSoftConstFl)
(usHardConst ++ usSoftConst)}
ORDER BY {{{@Sql.order_by (@Folder.concat ! usFl timeKeyFl)
(@Sql.some_fields [#Unavailable] [usKey ++ timeKey] ! !
(@Folder.concat ! usFl timeKeyFl))
sql_desc}}});
meetings <- queryL (SELECT meeting.{{usKey}}, meeting.{{timeKey}}, meeting.{{themKey}},
(SELECT COUNT( * )
FROM meeting AS ByThem
WHERE {@@Sql.easy_join [#ByThem] [#Meeting]
[themKey] [usKey ++ timeKey] [usKey ++ timeKey]
[_] [_] [_] ! ! ! ! themFl}
AND {@@Sql.easy_join [#ByThem] [#Meeting]
[timeKey] [usKey ++ themKey] [usKey ++ themKey]
[_] [_] [_] ! ! ! ! timeKeyFl}) AS ThisTime
FROM meeting
ORDER BY {{{@Sql.order_by allFl
(@Sql.some_fields [#Meeting] [all] ! ! allFl)
sql_desc}}});
meetings <- List.mapM (fn (us, off, tms) =>
tms' <- List.mapM (fn (tm, avail, ths) =>
ths <- source ths;
return (tm, avail, ths)) tms;
return (us, off, tms'))
(initMap []
meetings
uses
allTimes
unavails
[]
[]);
chan <- channel;
dml (INSERT INTO globalListeners (Channel) VALUES ({[chan]}));
mf <- source None;
mt <- source None;
return {Thems = thems, Times = allTimes, Meetings = meetings,
Channel = chan, MovingFrom = mf, MovingTo = mt}
end
val ensureUser =
user <- amUs;
case user of
None => error <xml>Must be authenticated to access this page</xml>
| Some us' => return ()
fun schedule r =
ensureUser;
alreadyScheduled <- oneRowE1 (SELECT COUNT( * ) > 0
FROM meeting
WHERE {@@Sql.easy_where [#Meeting] [all] [_] [_] [_] [_]
! ! allInj allFl r});
if alreadyScheduled then
return ()
else
addMeeting r
fun unschedule r =
ensureUser;
alreadyScheduled <- oneRowE1 (SELECT COUNT( * ) > 0
FROM meeting
WHERE {@@Sql.easy_where [#Meeting] [all] [_] [_] [_] [_]
! ! allInj allFl r});
if not alreadyScheduled then
return ()
else
delMeeting r
fun reschedule (r : {Them : $themKey, OldUs : $usKey, OldTime : $timeKey, NewUs : $usKey, NewTime : $timeKey}) =
ensureUser;
alreadyScheduled <- oneRowE1 (SELECT COUNT( * ) > 0
FROM meeting
WHERE {@@Sql.easy_where [#Meeting] [all] [_] [_] [_] [_]
! ! allInj allFl (r.Them ++ r.OldUs ++ r.OldTime)});
spotUsed <- oneRowE1 (SELECT COUNT( * ) > 0
FROM meeting
WHERE {@@Sql.easy_where [#Meeting] [all] [_] [_] [_] [_]
! ! allInj allFl (r.Them ++ r.NewUs ++ r.NewTime)});
if not alreadyScheduled || spotUsed then
return ()
else
delMeeting (r.Them ++ r.OldUs ++ r.OldTime);
addMeeting (r.Them ++ r.NewUs ++ r.NewTime)
fun render filt ctx t = <xml>
<table class="bs3-table table-striped">
<tr>
<th/>
(* Header: one column per time *)
{List.mapX (fn tm => <xml><th>{[tm]}</th></xml>) t.Times}
</tr>
(* One row per us *)
{List.mapX (fn (us, off, tms) => <xml>
<tr dynStyle={b <- filt (us ++ off); return (if b then STYLE "" else STYLE "display: none")}>
<th>{[us]}{[off]}</th>
(* One column per time *)
{List.mapX (fn (tm, avail, ths) => <xml>
<td dynClass={mf <- signal t.MovingFrom;
cls <- (case mf of
None => return (CLASS "")
| Some _ =>
mt <- signal t.MovingTo;
return (case mt of
None => CLASS ""
| Some mt =>
if mt.Us = us && mt.Time = tm then
CLASS "bs3-active"
else
CLASS ""));
return (if avail then cls else classes cls danger)}
onmouseover={fn _ =>
set t.MovingTo (Some {Us = us, Time = tm})}
onclick={fn _ =>
mf <- get t.MovingFrom;
case mf of
None => return ()
| Some mf =>
mt <- get t.MovingTo;
case mt of
None => return ()
| Some mt =>
set t.MovingFrom None;
rpc (reschedule {Them = mf.Them,
OldUs = mf.Us,
OldTime = mf.Time,
NewUs = mt.Us,
NewTime = mt.Time})}>
<active code={selected <- source "";
deleting <- source False;
return <xml>
<dyn signal={thsv <- signal ths;
(* One button per meeting *)
return <xml>
{List.mapX (fn (th, tt) => <xml>
<div dynClass={mf <- signal t.MovingFrom;
default <- return (case thsv of
_ :: _ :: _ => meeting_conflict
| _ => if tt > 1 then meeting_conflict else meeting_default);
return (case mf of
None => default
| Some mf =>
if mf.Us = us
&& mf.Them = th
&& mf.Time = tm then
meeting_selected
else
default)}
onclick={fn _ =>
del <- get deleting;
if del then
set deleting False
else
stopPropagation;
set t.MovingFrom
(Some {Us = us,
Them = th,
Time = tm})}>
{[th]}
{Ui.modalButton ctx (CLASS "close")
<xml>×</xml>
(set deleting True;
return (Ui.modal
(rpc (unschedule (th ++ us ++ tm)))
<xml>Are you sure you want to delete the {[tm]} meeting between {[us]} and {[th]}?</xml>
<xml/>
<xml>Yes!</xml>))}
</div>
</xml>) thsv}
{Ui.modalButton ctx (CLASS "btn btn-default btn-xs")
<xml>+</xml>
(return (Ui.modal
(sel <- get selected;
th <- return (readError sel : $themKey);
rpc (schedule (th ++ us ++ tm)))
<xml>Adding meeting for {[us]} at {[tm]}</xml>
<xml>
<cselect class="form-control"
source={selected}>
{List.mapX (fn th =>
if List.exists (fn (th', _) => th' = th) thsv then
<xml/>
else
<xml><coption>{[th]}</coption></xml>) t.Thems}
</cselect>
</xml>
<xml>Add Meeting</xml>))}
</xml>}/>
</xml>}/>
</td>
</xml>) tms}
</tr>
</xml>) t.Meetings}
</table>
</xml>
fun tweakMeeting (f : themSet -> themSet) (g : int -> int) (us : $usKey) (th : $themKey) (tm : $timeKey) =
List.app (fn (us', _, tms) =>
(if us' = us then
let
fun addTimes tms =
case tms of
[] => return ()
| (tm', _, ths) :: tms' =>
if tm' = tm then
v <- get ths;
set ths (f v)
else
addTimes tms'
in
addTimes tms
end
else
return ());
List.app (fn (tm', _, ths) =>
if tm = tm' then
thsv <- get ths;
set ths (List.mp (fn (th', count) =>
(th', if th' = th then
g count
else
count)) thsv)
else
return ()) tms)
fun onload t =
let
fun loop () =
r <- recv t.Channel;
let
val r' = localized (r -- #Operation -- #Time)
fun findExistingMeeting uses =
case uses of
[] => return 0
| (_, _, tms) :: uses' =>
let
fun fem tms =
case tms of
[] => findExistingMeeting uses'
| (tm, _, ths) :: tms' =>
if tm <> r.Time then
fem tms'
else
thsv <- get ths;
case List.find (fn (th, _) => th = r'.Them) thsv of
None => fem tms'
| Some (_, count) => return count
in
fem tms
end
in
case r.Operation of
Add =>
count <- findExistingMeeting t.Meetings;
tweakMeeting
(fn ls => List.sort (fn (x, _) (y, _) => show x > show y)
((r'.Them, count) :: ls))
(fn n => n + 1)
r'.Us r'.Them r.Time t.Meetings
| Del => tweakMeeting
(List.filter (fn (th, _) => th <> r'.Them))
(fn n => n - 1)
r'.Us r'.Them r.Time t.Meetings
end;
loop ()
in
spawn (loop ())
end
fun ui filt = {
Create = create,
Onload = onload,
Render = render filt
}
end
structure One = struct
type themSet = list ($themKey * $themOffice)
type timeMap = list ($timeKey * themSet)
type input = $usKey
type a = {Us : $usKey,
Meetings : list ($timeKey * source themSet),
Channel : channel usChannel}
fun create us =
let
fun doTimes (times : list $timeKey)
(rows : list {Meeting : $(timeKey ++ themKey), Them : $themOffice})
(thisTime : themSet)
(acc : timeMap)
: timeMap =
case times of
[] => List.rev acc
| tm :: times' =>
case rows of
[] => doTimes times' [] [] ((tm, List.rev thisTime) :: acc)
| row :: rows' =>
if row.Meeting --- themKey = tm then
doTimes times rows' ((row.Meeting --- timeKey, row.Them) :: thisTime) acc
else
doTimes times' rows [] ((tm, List.rev thisTime) :: acc)
in
allTimes <- queryL1 (SELECT time.{{timeKey}}
FROM time
ORDER BY {{{@Sql.order_by timeKeyFl
(@Sql.some_fields [#Time] [timeKey] ! ! timeKeyFl)
sql_desc}}});
meetings <- queryL (SELECT meeting.{{timeKey}}, meeting.{{themKey}}, them.{{themOffice}}
FROM meeting
JOIN them ON {@@Sql.easy_join [#Meeting] [#Them] [themKey]
[usKey ++ timeKey]
[themOffice ++ themHardConst ++ themSoftConst ++ themOther]
[_] [_] [_]
! ! ! ! themFl}
WHERE {@@Sql.easy_where [#Meeting] [usKey] [_] [_] [_] [_]
! ! usInj' usFl us}
AND {@@Sql.easy_where [#Them] [themHardConst ++ themSoftConst]
[themKey ++ themOffice ++ themOther] [_] [_] [_]
! ! (themHardConstInj ++ themSoftConstInj)
(@Folder.concat ! themHardConstFl themSoftConstFl)
(themHardConst ++ themSoftConst)}
ORDER BY {{{@Sql.order_by (@Folder.concat ! timeKeyFl themFl)
(@Sql.some_fields [#Meeting] [timeKey ++ themKey] ! !
(@Folder.concat ! timeKeyFl themFl))
sql_desc}}});
meetings <- List.mapM (fn (tm, ths) =>
ths <- source ths;
return (tm, ths))
(doTimes allTimes meetings [] []);
ch <- channel;
@@Sql.easy_insert [[Channel = _] ++ usKey] [_]
({Channel = _} ++ usInj')
(@Folder.cons [#Channel] [_] ! usFl)
usListeners
({Channel = ch} ++ us);
return {Us = us, Meetings = meetings, Channel = ch}
end
(* Note: with a new improvement to Ur/Web type inference, this annotation becomes necessary.
* Should probably look further into why, some day. *)
fun render (t : a) = <xml>
<table class="bs3-table table-striped">
<tr>
<th>Time</th>
<th>Meeting</th>
</tr>
{List.mapX (fn (tm, ths) => <xml>
<tr>
<td>{[tm]}</td>
<td>
<dyn signal={ths <- signal ths;
return (case ths of
[] => <xml>—</xml>
| (th, off) :: ths => <xml>{[th]}{[off]}{List.mapX (fn (th, off) => <xml>, {[th]}{[off]}</xml>) ths}</xml>)}/>
</td>
</tr>
</xml>) t.Meetings}
</table>
</xml>
fun tweakMeeting (f : themSet -> themSet) (tm : $timeKey) =
let
fun addTimes tms =
case tms of
[] => return ()
| (tm', ths) :: tms' =>
if tm' = tm then
v <- get ths;
set ths (f v)
else
addTimes tms'
in
addTimes
end
fun onload t =
let
fun loop () =
r <- recv t.Channel;
let
val r = usChannel r
in
case r.Operation of
Add =>
(case r.Place of
None => error <xml>One.onload: missing place</xml>
| Some off =>
tweakMeeting
(fn ls => List.sort (fn (x, _) (y, _) => show x > show y) ((r.Them, off) :: ls))
r.Time t.Meetings)
| Del => tweakMeeting
(List.filter (fn (th, _) => th <> r.Them))
r.Time t.Meetings
end;
loop ()
in
spawn (loop ())
end
fun ui x = {
Create = create x,
Onload = onload,
Render = fn _ => render
}
end
structure Prefs = ChooseForeign.Make(struct
val const = {ByHome = byHome}
val optionsConst = themHardConst
con given = usKey
con chosen = themKey
val choices = preference
val options = them
val buttonLabel = "Add Preference"
val givenInj = usInj'
val chosenInj = themInj'
val givenFl = usFl
val chosenFl = themFl
val amGiven = amUs
val optionsConstInj = themHardConstInj
val optionsConstFl = themHardConstFl
end)
structure Unavail = ChooseForeign.Make(struct
val const = {}
val optionsConst = {}
con given = usKey
con chosen = timeKey
val choices = unavailable
val options = time
val buttonLabel = "Add Constraint"
val givenInj = usInj'
val chosenInj = timeInj'
val givenFl = usFl
val chosenFl = timeKeyFl
val amGiven = amUs
end)
fun deleteFor r =
queryI1 (SELECT meeting.{{themKey}}, meeting.{{timeKey}}
FROM meeting
WHERE {@@Sql.easy_where [#Meeting] [usKey] [_] [_] [_] [_]
! ! usInj' usFl r})
(fn r' => delMeeting (r ++ r'));
dml (DELETE FROM meeting
WHERE {@@Sql.easy_where [#T] [usKey] [_] [_] [_] [_]
! ! usInj' usFl r})
end
val show_unit : show unit = mkShow (fn () => "")
structure Home = struct
open Side(struct
con usKey = homeKey
con usOffice = homeOffice
con usHardConst = homeHardConst
con usSoftConst = homeSoftConst
con themKey = awayKey
con themOffice = []
con themHardConst = []
con themSoftConst = awayConst
fun localized r = {Us = r.Home, Them = r.Away}
fun canonical r = {Home = r.Us, Away = r.Them}
val us = home
val them = away
val preference = preference
val byHome = True
val meeting = meeting
fun usChannel r = r -- #Away ++ {Them = r.Away}
val usListeners = homeListeners
val unavailable = homeUnavailable
val usInj = homeInj
val themInj = awayInj
val usFl = homeKeyFl
val themFl = awayKeyFl
val usOfficeFl = officeFl
val amUs = amHome
val usHardConst = homeHardConst
val usSoftConst = homeSoftConst
val themHardConst = {}
val themSoftConst = awayConst
val usHardConstInj = homeHardConstInj
val usHardConstFl = homeHardConstFl
val usSoftConstInj = homeSoftConstInj
val usSoftConstFl = homeSoftConstFl
val themSoftConstInj = awayConstInj
val themSoftConstFl = awayConstFl
end)
structure FullGrid = struct
open FullGrid
val ui = ui (fn _ => return True)
end
end
structure Away = Side(struct
con usKey = awayKey
con usOffice = awayFilter
con usHardConst = []
con usSoftConst = awayConst
con themKey = homeKey
con themOffice = homeOffice
con themHardConst = homeHardConst
con themSoftConst = homeSoftConst
fun localized r = {Us = r.Away, Them = r.Home}
fun canonical r = {Away = r.Us, Home = r.Them}
val us = away
val them = home
val preference = preference
val byHome = False
val meeting = meeting
fun usChannel r = r -- #Home ++ {Them = r.Home}
val usListeners = awayListeners
val unavailable = awayUnavailable
val usInj = awayInj
val themInj = homeInj
val usFl = awayKeyFl
val themFl = homeKeyFl