use strict;
use warnings;
+use base qw/DBIx::Class::Storage::DBI/;
+use mro 'c3';
+use DBIx::Class::Carp;
use Scope::Guard ();
use Context::Preserve 'preserve_context';
-use Try::Tiny;
-use List::Util 'first';
+use DBIx::Class::_Util qw( modver_gt_or_eq modver_gt_or_eq_and_lt dbic_internal_try );
use namespace::clean;
__PACKAGE__->sql_limit_dialect ('RowNum');
__PACKAGE__->sql_quote_char ('"');
+__PACKAGE__->sql_maker_class('DBIx::Class::SQLMaker::Oracle');
+__PACKAGE__->datetime_parser_type('DateTime::Format::Oracle');
+
+sub __cache_queries_with_max_lob_parts { 2 }
=head1 NAME
=cut
-use base qw/DBIx::Class::Storage::DBI/;
-use mro 'c3';
-
-__PACKAGE__->sql_maker_class('DBIx::Class::SQLMaker::Oracle');
-__PACKAGE__->datetime_parser_type('DateTime::Format::Oracle');
-
-sub __cache_queries_with_max_lob_parts { 2 }
-
sub _determine_supports_insert_returning {
my $self = shift;
my ($schema, $type, $version, $dir, $sqltargs, @rest) = @_;
$sqltargs ||= {};
- my $quote_char = $self->schema->storage->sql_maker->quote_char;
- $sqltargs->{quote_table_names} = $quote_char ? 1 : 0;
- $sqltargs->{quote_field_names} = $quote_char ? 1 : 0;
if (
! exists $sqltargs->{producer_args}{oracle_version}
sub _dbh_last_insert_id {
my ($self, $dbh, $source, @columns) = @_;
my @ids = ();
+ my $ci = $source->columns_info(\@columns);
foreach my $col (@columns) {
- my $seq = ($source->column_info($col)->{sequence} ||= $self->get_autoinc_seq($source,$col));
+ my $seq = ( $ci->{$col}{sequence} ||= $self->get_autoinc_seq($source,$col));
my $id = $self->_sequence_fetch( 'CURRVAL', $seq );
push @ids, $id;
}
my ( $schema, $table ) = $source_name =~ /( (?:${ql})? \w+ (?:${qr})? ) \. ( (?:${ql})? \w+ (?:${qr})? )/x;
# if no explicit schema was requested - use the default schema (which in the case of Oracle is the db user)
- $schema ||= uc( ($self->_dbi_connect_info||[])->[1] || '');
+ $schema ||= \'= USER';
my ($sql, @bind) = $sql_maker->select (
'ALL_TRIGGERS',
[qw/TRIGGER_BODY TABLE_OWNER TRIGGER_NAME/],
{
- $schema ? (OWNER => $schema) : (),
+ OWNER => $schema,
TABLE_NAME => $table || $source_name,
TRIGGERING_EVENT => { -like => '%INSERT%' }, # this will also catch insert_or_update
TRIGGER_TYPE => { -like => '%BEFORE%' }, # we care only about 'before' triggers
# to find all the triggers that mention the column in question a simple
# regex grep since the trigger_body above is a LONG and hence not searchable
+ # via -like
my @triggers = ( map
{ my %inf; @inf{qw/body schema name/} = @$_; \%inf }
( grep
)
);
- # extract all sequence names mentioned in each trigger
- for (@triggers) {
- $_->{sequences} = [ $_->{body} =~ / ( "? [\.\w\"\-]+ "? ) \. nextval /xig ];
- }
+ # extract all sequence names mentioned in each trigger, throw away
+ # triggers without apparent sequences
+ @triggers = map {
+ my @seqs = $_->{body} =~ / ( [\.\w\"\-]+ ) \. nextval /xig;
+ @seqs
+ ? { %$_, sequences => \@seqs }
+ : ()
+ ;
+ } @triggers;
my $chosen_trigger;
}
else {
$self->throw_exception( sprintf (
- "Unable to introspect trigger '%s' for column %s.%s (references multiple sequences). "
+ "Unable to introspect trigger '%s' for column '%s.%s' (references multiple sequences). "
. "You need to specify the correct 'sequence' explicitly in '%s's column_info.",
$triggers[0]{name},
$source_name,
}
else {
$self->throw_exception( sprintf (
- "Unable to reliably select a BEFORE INSERT trigger for column %s.%s (possibilities: %s). "
+ "Unable to reliably select a BEFORE INSERT trigger for column '%s.%s' (possibilities: %s). "
. "You need to specify the correct 'sequence' explicitly in '%s's column_info.",
$source_name,
$col,
}
$self->throw_exception( sprintf (
- "No suitable BEFORE INSERT triggers found for column %s.%s. "
+ "No suitable BEFORE INSERT triggers found for column '%s.%s'. "
. "You need to specify the correct 'sequence' explicitly in '%s's column_info.",
$source_name,
$col,
my ( $self, $type, $seq ) = @_;
# use the maker to leverage quoting settings
- my $sql_maker = $self->sql_maker;
- my ($id) = $self->_get_dbh->selectrow_array ($sql_maker->select('DUAL', [ ref $seq ? \"$$seq.$type" : "$seq.$type" ] ) );
+ my $sth = $self->_dbh->prepare_cached(
+ $self->sql_maker->select('DUAL', [ ref $seq ? \"$$seq.$type" : "$seq.$type" ] )
+ );
+ $sth->execute;
+ my ($id) = $sth->fetchrow_array;
+ $sth->finish;
return $id;
}
local $dbh->{RaiseError} = 1;
local $dbh->{PrintError} = 0;
- return try {
+ ( dbic_internal_try {
$dbh->do('select 1 from dual');
1;
- } catch {
- 0;
- };
+ })
+ ? 1
+ : 0
+ ;
}
sub _dbh_execute {
- my ($self, $dbh, $sql, @args) = @_;
+ #my ($self, $dbh, $sql, $bind, $bind_attrs) = @_;
+ my ($self, $sql, $bind) = @_[0,2,3];
- my (@res, $tried);
- my $want = wantarray;
- my $next = $self->next::can;
- do {
- try {
- my $exec = sub {
- # Turn off sth caching for multi-part LOBs. See _prep_for_execute above.
- local $self->{disable_sth_caching} = 1
- if first {
- ($_->[0]{_ora_lob_autosplit_part}||0)
- > (__cache_queries_with_max_lob_parts-1)
- } @{ $args[0] };
-
- $self->$next($dbh, $sql, @args)
- };
+ # Turn off sth caching for multi-part LOBs. See _prep_for_execute below
+ local $self->{disable_sth_caching} = 1 if grep {
+ ($_->[0]{_ora_lob_autosplit_part}||0)
+ >
+ (__cache_queries_with_max_lob_parts - 1)
+ } @$bind;
- if (!defined $want) {
- $exec->();
- }
- elsif (! $want) {
- $res[0] = $exec->();
- }
- else {
- @res = $exec->();
- }
+ my $next = $self->next::can;
- $tried++;
- }
- catch {
- if (! $tried and $_ =~ /ORA-01003/) {
- # ORA-01003: no statement parsed (someone changed the table somehow,
- # invalidating your cursor.)
+ # if we are already in a txn we can't retry anything
+ return shift->$next(@_)
+ if $self->transaction_depth;
+
+ # Cheat the blockrunner we are just about to create:
+ # We *do* want to rerun things regardless of outer state
+ local $self->{_in_do_block}
+ if $self->{_in_do_block};
+
+ DBIx::Class::Storage::BlockRunner->new(
+ storage => $self,
+ wrap_txn => 0,
+ retry_handler => sub {
+ # ORA-01003: no statement parsed (someone changed the table somehow,
+ # invalidating your cursor.)
+ if (
+ $_[0]->failed_attempt_count == 1
+ and
+ $_[0]->last_exception =~ /ORA-01003/
+ and
+ my $dbh = $_[0]->storage->_dbh
+ ) {
delete $dbh->{CachedKids}{$sql};
+ return 1;
}
else {
- $self->throw_exception($_);
+ return 0;
}
- };
- } while (! $tried++);
-
- return wantarray ? @res : $res[0];
+ },
+ )->run( $next, @_ );
}
-sub _dbh_execute_array {
- #my ($self, $sth, $tuple_status, @extra) = @_;
+sub _dbh_execute_for_fetch {
+ #my ($self, $source, $sth, $proto_bind, $cols, $data) = @_;
- # DBD::Oracle warns loudly on partial execute_array failures
- local $_[1]->{PrintWarn} = 0;
+ # Older DBD::Oracle warns loudly on partial execute_for_fetch failures
+ # before https://metacpan.org/source/PYTHIAN/DBD-Oracle-1.28/Changes#L7-9
+ local $_[2]->{PrintWarn} = 0
+ unless modver_gt_or_eq( 'DBD::Oracle', '1.28' );
shift->next::method(@_);
}
my $attrs = $self->next::method($ident, $bind);
- for my $i (0 .. $#$attrs) {
- if (keys %{$attrs->[$i]||{}} and my $col = $bind->[$i][0]{dbic_colname}) {
- $attrs->[$i]{ora_field} = $col;
- }
- }
+ # Push the column name into all bind attrs, make sure to *NOT* write into
+ # the existing $attrs->[$idx]{..} hashref, as it is cached by the call to
+ # next::method above.
+ # FIXME - this code will go away when the LobWriter refactor lands
+ $attrs->[$_]
+ and
+ keys %{ $attrs->[$_] }
+ and
+ $bind->[$_][0]{dbic_colname}
+ and
+ $attrs->[$_] = { %{$attrs->[$_]}, ora_field => $bind->[$_][0]{dbic_colname} }
+ for 0 .. $#$attrs;
$attrs;
}
-my $dbd_loaded;
sub bind_attribute_by_data_type {
my ($self, $dt) = @_;
- $dbd_loaded ||= do {
- require DBD::Oracle;
- if ($DBD::Oracle::VERSION eq '1.23') {
- $self->throw_exception(
- "BLOB/CLOB support in DBD::Oracle == 1.23 is broken, use an earlier or later ".
- "version.\n\nSee: https://rt.cpan.org/Public/Bug/Display.html?id=46016\n"
- );
- }
- 1;
- };
-
if ($self->_is_lob_type($dt)) {
+
+ # no earlier - no later
+ $self->throw_exception(
+ "BLOB/CLOB support in DBD::Oracle == 1.23 is broken, use an earlier or later "
+ . "version (https://rt.cpan.org/Public/Bug/Display.html?id=46016)"
+ ) if modver_gt_or_eq_and_lt( 'DBD::Oracle', '1.23', '1.24' );
+
return {
ora_type => $self->_is_text_lob_type($dt)
? DBD::Oracle::ORA_CLOB()
: DBD::Oracle::ORA_BLOB()
};
}
+ else {
+ return undef;
+ }
}
# Handle blob columns in WHERE.
my $self = shift;
my ($op) = @_;
+ return $self->next::method(@_)
+ if $op eq 'insert';
+
my ($sql, $bind) = $self->next::method(@_);
- return ($sql, $bind) if $op ne 'select';
+ my $lob_bind_indices = { map {
+ (
+ $bind->[$_][0]{sqlt_datatype}
+ and
+ $self->_is_lob_type($bind->[$_][0]{sqlt_datatype})
+ ) ? ( $_ => 1 ) : ()
+ } ( 0 .. $#$bind ) };
+
+ return ($sql, $bind) unless %$lob_bind_indices;
+
+ my ($final_sql, @final_binds);
+ if ($op eq 'update') {
+ $self->throw_exception('Update with complex WHERE clauses involving BLOB columns currently not supported')
+ if $sql =~ /\bWHERE\b .+ \bWHERE\b/xs;
- my @sql_part = split /\?/, $sql;
- my ($new_sql, @new_binds);
+ my $where_sql;
+ ($final_sql, $where_sql) = $sql =~ /^ (.+?) ( \bWHERE\b .+) /xs;
- foreach my $bound (@$bind) {
- my $data_type = $bound->[0]{sqlt_datatype}||'';
+ if (my $set_bind_count = $final_sql =~ y/?//) {
- if ($self->_is_lob_type($data_type)) {
- if (my ($col, $eq) = $sql_part[0] =~ /(?<=\s)([\w."]+)(\s*=\s*)$/) {
- my $data = $bound->[1];
+ delete $lob_bind_indices->{$_} for (0 .. ($set_bind_count - 1));
- $data = "$data" if ref $data;
+ # bail if only the update part contains blobs
+ return ($sql, $bind) unless %$lob_bind_indices;
- my @parts = unpack '(a2000)*', $data;
+ @final_binds = splice @$bind, 0, $set_bind_count;
+ $lob_bind_indices = { map
+ { $_ - $set_bind_count => $lob_bind_indices->{$_} }
+ keys %$lob_bind_indices
+ };
+ }
+
+ # if we got that far - assume the where SQL is all we got
+ # (the first part is already shoved into $final_sql)
+ $sql = $where_sql;
+ }
+ elsif ($op ne 'select' and $op ne 'delete') {
+ $self->throw_exception("Unsupported \$op: $op");
+ }
- my @sql_frag;
+ my @sql_parts = split /\?/, $sql;
- for my $idx (0..$#parts) {
- push @sql_frag,
-"UTL_RAW.CAST_TO_VARCHAR2(RAWTOHEX(DBMS_LOB.SUBSTR($col, 2000, ".($idx*2000+1)."))) = ?";
- }
+ my $col_equality_re = qr/ (?<=\s) ([\w."]+) (\s*=\s*) $/x;
- my $sql_frag = '( ' . (join ' AND ', @sql_frag) . ' )';
+ for my $b_idx (0 .. $#$bind) {
+ my $bound = $bind->[$b_idx];
- $sql_part[0] =~ s/(?<=\s)([\w."]+)(\s*=\s*)$/$sql_frag/;
+ if (
+ $lob_bind_indices->{$b_idx}
+ and
+ my ($col, $eq) = $sql_parts[0] =~ $col_equality_re
+ ) {
+ my $data = $bound->[1];
- $new_sql .= shift @sql_part;
+ $data = "$data" if ref $data;
- for my $idx (0..$#parts) {
- push @new_binds, [
- {
- %{ $bound->[0] },
- _ora_lob_autosplit_part => $idx,
- dbd_attrs => undef,
- },
- $parts[$idx]
- ];
- }
+ my @parts = unpack '(a2000)*', $data;
+
+ my @sql_frag;
+
+ for my $idx (0..$#parts) {
+ push @sql_frag, sprintf (
+ 'UTL_RAW.CAST_TO_VARCHAR2(RAWTOHEX(DBMS_LOB.SUBSTR(%s, 2000, %d))) = ?',
+ $col, ($idx*2000 + 1),
+ );
}
- else {
- $new_sql .= shift(@sql_part) . '?';
- push @new_binds, [
+ my $sql_frag = '( ' . (join ' AND ', @sql_frag) . ' )';
+
+ $sql_parts[0] =~ s/$col_equality_re/$sql_frag/;
+
+ $final_sql .= shift @sql_parts;
+
+ for my $idx (0..$#parts) {
+ push @final_binds, [
{
%{ $bound->[0] },
+ _ora_lob_autosplit_part => $idx,
dbd_attrs => undef,
},
- $bound->[1],
+ $parts[$idx]
];
}
}
else {
- $new_sql .= shift(@sql_part) . '?';
- push @new_binds, $bound;
+ $final_sql .= shift(@sql_parts) . '?';
+ push @final_binds, $lob_bind_indices->{$b_idx}
+ ? [
+ {
+ %{ $bound->[0] },
+ dbd_attrs => undef,
+ },
+ $bound->[1],
+ ] : $bound
+ ;
}
}
- $new_sql .= join '', @sql_part;
- return ($new_sql, \@new_binds);
+ if (@sql_parts > 1) {
+ carp "There are more placeholders than binds, this should not happen!";
+ @sql_parts = join ('?', @sql_parts);
+ }
+
+ $final_sql .= $sql_parts[0];
+
+ return ($final_sql, \@final_binds);
}
# Savepoints stuff.
the L<DBIx::Class::Relationship> name is shortened and appended with half of an
MD5 hash.
-See L<DBIx::Class::Storage/"relname_to_table_alias">.
+See L<DBIx::Class::Storage::DBI/relname_to_table_alias>.
=cut
my $alias = $self->next::method(@_);
# we need to shorten here in addition to the shortening in SQLA itself,
- # since the final relnames are a crucial for the join optimizer
+ # since the final relnames are crucial for the join optimizer
return $self->sql_maker->_shorten_identifier($alias);
}
# person me
# CONNECT BY
# parentid = prior persionid
-
+
connect_by_nocycle => { parentid => 'prior personid' }
# ORDER SIBLINGS BY
# firstname ASC
-=head1 AUTHOR
+=head1 FURTHER QUESTIONS?
-See L<DBIx::Class/AUTHOR> and L<DBIx::Class/CONTRIBUTORS>.
+Check the list of L<additional DBIC resources|DBIx::Class/GETTING HELP/SUPPORT>.
-=head1 LICENSE
+=head1 COPYRIGHT AND LICENSE
-You may distribute this code under the same terms as Perl itself.
+This module is free software L<copyright|DBIx::Class/COPYRIGHT AND LICENSE>
+by the L<DBIx::Class (DBIC) authors|DBIx::Class/AUTHORS>. You can
+redistribute it and/or modify it under the same terms as the
+L<DBIx::Class library|DBIx::Class/COPYRIGHT AND LICENSE>.
=cut
projects / dbsrgits/DBIx-Class.git / blobdiff