change what select-tuples/select-tuple/count-tuples takes

db4
Doug Coleman 2008-09-24 17:59:17 -05:00
parent 0d9b0753dd
commit 969763e807
3 changed files with 44 additions and 49 deletions

View File

@ -177,7 +177,8 @@ M: db <select-by-slots-statement> ( tuple class -- statement )
[ offset>> [ do-offset ] [ drop ] if* ]
} 2cleave ;
M: db make-query ( tuple class query -- tuple )
M: db query>statement ( query -- tuple )
[ tuple>> dup class ] keep
[ <select-by-slots-statement> ] dip make-query* ;
! select ID, NAME, SCORE from EXAM limit 1 offset 3
@ -194,9 +195,8 @@ M: db make-query ( tuple class query -- tuple )
>r >r parse-sql 4drop r> r>
<simple-statement> maybe-make-retryable do-select ;
M: db <count-statement> ( tuple class groups -- statement )
\ query new
swap >>group
M: db <count-statement> ( query -- statement )
[ tuple>> dup class ] keep
[ [ "select count(*) from " 0% 0% where-clause ] query-make ]
dip make-query* ;

View File

@ -357,7 +357,7 @@ TUPLE: exam id name score ;
T{ exam } select-tuples
] unit-test
[ 4 ] [ T{ exam } f count-tuples ] unit-test ;
[ 4 ] [ T{ exam } count-tuples ] unit-test ;
TUPLE: bignum-test id m n o ;
: <bignum-test> ( m n o -- obj )

View File

@ -6,16 +6,6 @@ math.parser io prettyprint db.types continuations
destructors mirrors sets ;
IN: db.tuples
TUPLE: query tuple group order offset limit ;
: <query> ( -- query ) \ query new ;
GENERIC: >query ( object -- query )
M: query >query ;
M: tuple >query <query> swap >>tuple ;
! returns a sequence of prepared-statements
HOOK: create-sql-statement db ( class -- object )
HOOK: drop-sql-statement db ( class -- object )
@ -25,8 +15,8 @@ HOOK: <insert-user-assigned-statement> db ( class -- object )
HOOK: <update-tuple-statement> db ( class -- object )
HOOK: <delete-tuples-statement> db ( tuple class -- object )
HOOK: <select-by-slots-statement> db ( tuple class -- tuple )
HOOK: <count-statement> db ( tuple class groups -- statement )
HOOK: make-query db ( tuple class query -- statement )
HOOK: <count-statement> db ( query -- statement )
HOOK: query>statement db ( query -- statement )
HOOK: insert-tuple* db ( tuple statement -- )
@ -93,6 +83,35 @@ GENERIC: eval-generator ( singleton -- object )
with-disposal
] if ; inline
: insert-db-assigned-statement ( tuple -- )
dup class
db get insert-statements>> [ <insert-db-assigned-statement> ] cache
[ bind-tuple ] 2keep insert-tuple* ;
: insert-user-assigned-statement ( tuple -- )
dup class
db get insert-statements>> [ <insert-user-assigned-statement> ] cache
[ bind-tuple ] keep execute-statement ;
: do-select ( exemplar-tuple statement -- tuples )
[ [ bind-tuple ] [ query-tuples ] 2bi ] with-disposal ;
: do-count ( exemplar-tuple statement -- tuples )
[ [ bind-tuple ] [ nip default-query ] 2bi ] with-disposal ;
! High level
TUPLE: query tuple group order offset limit ;
: <query> ( -- query ) \ query new ;
GENERIC: >query ( object -- query )
M: query >query clone ;
M: tuple >query <query> swap >>tuple ;
: create-table ( class -- )
create-sql-statement [ execute-statement ] with-disposals ;
@ -105,21 +124,9 @@ GENERIC: eval-generator ( singleton -- object )
] curry ignore-errors
] [ create-table ] bi ;
: ensure-table ( class -- )
[ create-table ] curry ignore-errors ;
: ensure-table ( class -- ) [ create-table ] curry ignore-errors ;
: ensure-tables ( classes -- )
[ ensure-table ] each ;
: insert-db-assigned-statement ( tuple -- )
dup class
db get insert-statements>> [ <insert-db-assigned-statement> ] cache
[ bind-tuple ] 2keep insert-tuple* ;
: insert-user-assigned-statement ( tuple -- )
dup class
db get insert-statements>> [ <insert-user-assigned-statement> ] cache
[ bind-tuple ] keep execute-statement ;
: ensure-tables ( classes -- ) [ ensure-table ] each ;
: insert-tuple ( tuple -- )
dup class db-columns find-primary-key db-assigned-id-spec?
@ -135,26 +142,14 @@ GENERIC: eval-generator ( singleton -- object )
[ bind-tuple ] keep execute-statement
] with-disposal ;
: do-select ( exemplar-tuple statement -- tuples )
[ [ bind-tuple ] [ query-tuples ] 2bi ] with-disposal ;
: select-tuples ( query/tuple -- tuples )
>query [ tuple>> ] [ query>statement ] bi do-select ;
: query ( tuple query -- tuples )
[ dup dup class ] dip make-query do-select ;
: select-tuples ( tuple -- tuples )
dup dup class <select-by-slots-statement> do-select ;
: select-tuple ( tuple -- tuple/f )
dup dup class \ query new 1 >>limit make-query do-select
: select-tuple ( query/tuple -- tuple/f )
>query 1 >>limit [ tuple>> ] [ query>statement ] bi do-select
[ f ] [ first ] if-empty ;
: do-count ( exemplar-tuple statement -- tuples )
[
[ bind-tuple ] [ nip default-query ] 2bi
] with-disposal ;
: count-tuples ( tuple groups -- n )
>r dup dup class r> <count-statement> do-count
: count-tuples ( query/tuple -- n )
>query [ tuple>> ] [ <count-statement> ] bi do-count
dup length 1 =
[ first first string>number ] [ [ first string>number ] map ] if ;