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DBD::SQLite: tidied

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This commit is contained in:
Kenichi Ishigaki 2009-10-20 05:45:25 +00:00
parent 1527e42c09
commit d0740e060c
1 changed files with 46 additions and 46 deletions
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92
lib/DBD/SQLite.pm
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@ -137,20 +137,20 @@ sub connect {
sub install_collation { sub install_collation {
my ($dbh, $collation_name) = @_; my ($dbh, $collation_name) = @_;
my $collation = $DBD::SQLite::COLLATION{$collation_name} my $collation = $DBD::SQLite::COLLATION{$collation_name}
or die "can't install, unknown collation : $collation_name"; or die "can't install, unknown collation : $collation_name";
$DBI::VERSION >= 1.608 $DBI::VERSION >= 1.608
? $dbh->sqlite_create_collation($collation_name => $collation) ? $dbh->sqlite_create_collation($collation_name => $collation)
: $dbh->func($collation_name => $collation, "create_collation"); : $dbh->func($collation_name => $collation, "create_collation");
} }
# default implementation for sqlite 'REGEXP' infix operator. # default implementation for sqlite 'REGEXP' infix operator.
# Note : args are reversed, i.e. "a REGEXP b" calls REGEXP(b, a) # Note : args are reversed, i.e. "a REGEXP b" calls REGEXP(b, a)
# (see http://www.sqlite.org/vtab.html#xfindfunction) # (see http://www.sqlite.org/vtab.html#xfindfunction)
sub regexp { sub regexp {
use locale; use locale;
return scalar($_[1] =~ $_[0]); return scalar($_[1] =~ $_[0]);
} }
@ -209,7 +209,7 @@ sub table_info {
if ( defined($cat_val) && $cat_val eq '%' if ( defined($cat_val) && $cat_val eq '%'
&& defined($sch_val) && $sch_val eq '' && defined($sch_val) && $sch_val eq ''
&& defined($tbl_val) && $tbl_val eq '') { # Rule 19a && defined($tbl_val) && $tbl_val eq '') { # Rule 19a
$sql = <<'END_SQL'; $sql = <<'END_SQL';
SELECT NULL TABLE_CAT SELECT NULL TABLE_CAT
, NULL TABLE_SCHEM , NULL TABLE_SCHEM
, NULL TABLE_NAME , NULL TABLE_NAME
@ -220,7 +220,7 @@ END_SQL
elsif ( defined($cat_val) && $cat_val eq '' elsif ( defined($cat_val) && $cat_val eq ''
&& defined($sch_val) && $sch_val eq '%' && defined($sch_val) && $sch_val eq '%'
&& defined($tbl_val) && $tbl_val eq '') { # Rule 19b && defined($tbl_val) && $tbl_val eq '') { # Rule 19b
$sql = <<'END_SQL'; $sql = <<'END_SQL';
SELECT NULL TABLE_CAT SELECT NULL TABLE_CAT
, t.tn TABLE_SCHEM , t.tn TABLE_SCHEM
, NULL TABLE_NAME , NULL TABLE_NAME
@ -230,16 +230,16 @@ FROM (
SELECT 'main' tn SELECT 'main' tn
UNION SELECT 'temp' tn UNION SELECT 'temp' tn
END_SQL END_SQL
for my $db_name (_attached_database_list($dbh)) { for my $db_name (_attached_database_list($dbh)) {
$sql .= " UNION SELECT '$db_name' tn\n"; $sql .= " UNION SELECT '$db_name' tn\n";
} }
$sql .= ") t\n"; $sql .= ") t\n";
} }
elsif ( defined($cat_val) && $cat_val eq '' elsif ( defined($cat_val) && $cat_val eq ''
&& defined($sch_val) && $sch_val eq '' && defined($sch_val) && $sch_val eq ''
&& defined($tbl_val) && $tbl_val eq '' && defined($tbl_val) && $tbl_val eq ''
&& defined($typ_val) && $typ_val eq '%') { # Rule 19c && defined($typ_val) && $typ_val eq '%') { # Rule 19c
$sql = <<'END_SQL'; $sql = <<'END_SQL';
SELECT NULL TABLE_CAT SELECT NULL TABLE_CAT
, NULL TABLE_SCHEM , NULL TABLE_SCHEM
, NULL TABLE_NAME , NULL TABLE_NAME
@ -254,7 +254,7 @@ ORDER BY TABLE_TYPE
END_SQL END_SQL
} }
else { else {
$sql = <<'END_SQL'; $sql = <<'END_SQL';
SELECT * SELECT *
FROM FROM
( (
@ -272,15 +272,15 @@ UNION ALL
FROM sqlite_temp_master FROM sqlite_temp_master
END_SQL END_SQL
for my $db_name (_attached_database_list($dbh)) { for my $db_name (_attached_database_list($dbh)) {
$sql .= <<"END_SQL"; $sql .= <<"END_SQL";
UNION ALL UNION ALL
SELECT '$db_name' TABLE_SCHEM, tbl_name, upper(type) TABLE_TYPE, sql SELECT '$db_name' TABLE_SCHEM, tbl_name, upper(type) TABLE_TYPE, sql
FROM "$db_name".sqlite_master FROM "$db_name".sqlite_master
END_SQL END_SQL
} }
$sql .= <<'END_SQL'; $sql .= <<'END_SQL';
UNION ALL UNION ALL
SELECT 'main' TABLE_SCHEM, 'sqlite_master' tbl_name, 'SYSTEM TABLE' TABLE_TYPE, NULL sql SELECT 'main' TABLE_SCHEM, 'sqlite_master' tbl_name, 'SYSTEM TABLE' TABLE_TYPE, NULL sql
UNION ALL UNION ALL
@ -288,29 +288,29 @@ UNION ALL
) )
) )
END_SQL END_SQL
$attr = {} unless ref $attr eq 'HASH'; $attr = {} unless ref $attr eq 'HASH';
my $escape = defined $attr->{Escape} ? " ESCAPE '$attr->{Escape}'" : ''; my $escape = defined $attr->{Escape} ? " ESCAPE '$attr->{Escape}'" : '';
if ( defined $sch_val ) { if ( defined $sch_val ) {
push @where, "TABLE_SCHEM LIKE '$sch_val'$escape"; push @where, "TABLE_SCHEM LIKE '$sch_val'$escape";
}
if ( defined $tbl_val ) {
push @where, "TABLE_NAME LIKE '$tbl_val'$escape";
}
if ( defined $typ_val ) {
my $table_type_list;
$typ_val =~ s/^\s+//;
$typ_val =~ s/\s+$//;
my @ttype_list = split (/\s*,\s*/, $typ_val);
foreach my $table_type (@ttype_list) {
if ($table_type !~ /^'.*'$/) {
$table_type = "'" . $table_type . "'";
}
} }
if ( defined $tbl_val ) { $table_type_list = join(', ', @ttype_list);
push @where, "TABLE_NAME LIKE '$tbl_val'$escape"; push @where, "TABLE_TYPE IN (\U$table_type_list)" if $table_type_list;
} }
if ( defined $typ_val ) { $sql .= ' WHERE ' . join("\n AND ", @where ) . "\n" if @where;
my $table_type_list; $sql .= " ORDER BY TABLE_TYPE, TABLE_SCHEM, TABLE_NAME\n";
$typ_val =~ s/^\s+//;
$typ_val =~ s/\s+$//;
my @ttype_list = split (/\s*,\s*/, $typ_val);
foreach my $table_type (@ttype_list) {
if ($table_type !~ /^'.*'$/) {
$table_type = "'" . $table_type . "'";
}
}
$table_type_list = join(', ', @ttype_list);
push @where, "TABLE_TYPE IN (\U$table_type_list)" if $table_type_list;
}
$sql .= ' WHERE ' . join("\n AND ", @where ) . "\n" if @where;
$sql .= " ORDER BY TABLE_TYPE, TABLE_SCHEM, TABLE_NAME\n";
} }
my $sth = $dbh->prepare($sql) or return undef; my $sth = $dbh->prepare($sql) or return undef;
$sth->execute or return undef; $sth->execute or return undef;
@ -547,16 +547,16 @@ require Tie::Hash;
our @ISA = qw(Tie::StdHash); our @ISA = qw(Tie::StdHash);
sub TIEHASH { sub TIEHASH {
bless {}, $_[0]; bless {}, $_[0];
} }
sub STORE { sub STORE {
! exists $_[0]->{$_[1]} or die "entry $_[1] already registered"; ! exists $_[0]->{$_[1]} or die "entry $_[1] already registered";
$_[0]->{$_[1]} = $_[2]; $_[0]->{$_[1]} = $_[2];
} }
sub DELETE { sub DELETE {
die "deletion of entry $_[1] is forbidden"; die "deletion of entry $_[1] is forbidden";
} }
1; 1;