1 structure Init
:> INIT
=
7 exception Access
of string
9 fun conn () = C
.conn
"dbname='hcoop'"
12 type user
= {id
: int, name
: string, rname
: string, bal
: int, joined
: C
.timestamp
}
14 val db
= ref (NONE
: C
.conn option
)
15 val user
= ref (NONE
: user option
)
17 fun getDb () = valOf (!db
)
19 fun mkUserRow
[id
, name
, rname
, bal
, joined
] =
20 {id
= C
.intFromSql id
, name
= C
.stringFromSql name
, rname
= C
.stringFromSql rname
,
21 bal
= C
.intFromSql bal
, joined
= C
.timestampFromSql joined
}
22 | mkUserRow row
= raise Fail ("Bad user row : " ^ makeSet id row
)
29 case Web
.getCgi
"REMOTE_USER" of
30 NONE
=> raise Fail
"Not logged in"
32 (case C
.oneOrNoRows
c ($`SELECT id
, name
, rname
, bal
, joined
34 WHERE name
=^
(C
.stringToSql name
)`
) of
35 NONE
=> raise Fail
"User not found"
36 | SOME r
=> user
:= SOME (mkUserRow r
));
48 fun getUser () = valOf (!user
)
49 fun getUserId () = #
id (getUser ())
50 fun getUserName () = #
name (getUser ())
53 mkUserRow (C
.oneRow (getDb ()) ($`SELECT id
, name
, rname
, bal
, joined
55 WHERE id
= ^
(C
.intToSql id
)`
))
58 C
.map (getDb ()) mkUserRow ($`SELECT id
, name
, rname
, bal
, joined
62 fun nextSeq (db
, seq
) =
63 case C
.oneRow
db ($`SELECT
nextval('^
(seq
)')`
) of
65 | _
=> raise Fail
"Bad next sequence val"
67 fun addUser (name
, rname
, bal
) =
70 val id
= nextSeq (db
, "WebUserSeq")
72 C
.dml
db ($`INSERT INTO
WebUser (id
, name
, rname
, bal
, joined
)
73 VALUES (^id
, ^
(C
.stringToSql name
), ^
(C
.stringToSql rname
), ^
(C
.intToSql bal
), CURRENT_TIMESTAMP
)`
);
77 fun modUser (user
: user
) =
81 ignore (C
.dml
db ($`UPDATE WebUser SET
82 name
= ^
(C
.stringToSql (#name user
)), rname
= ^
(C
.stringToSql (#rname user
)),
83 bal
= ^
(C
.intToSql (#bal user
))
84 WHERE id
= ^
(C
.intToSql (#id user
))`
))
88 C
.dml (getDb ()) ($`DELETE FROM WebUser WHERE id
= ^
(C
.intToSql id
)`
)
90 fun validUsername name
=
92 andalso CharVector
.all
Char.isAlpha name
94 fun userNameToId name
=
95 case C
.oneOrNoRows (getDb ()) ($`SELECT id FROM WebUser WHERE name
= ^
(C
.stringToSql name
)`
) of
96 SOME
[id
] => SOME (C
.intFromSql id
)