use strict;
use warnings;
+use Scope::Guard ();
+use Context::Preserve ();
+use Try::Tiny;
=head1 NAME
use base qw/DBIx::Class::Storage::DBI/;
use mro 'c3';
+sub deployment_statements {
+ 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;
+
+ my $oracle_version = eval { $self->_get_dbh->get_info(18) };
+
+ $sqltargs->{producer_args}{oracle_version} = $oracle_version;
+
+ $self->next::method($schema, $type, $version, $dir, $sqltargs, @rest);
+}
+
sub _dbh_last_insert_id {
my ($self, $dbh, $source, @columns) = @_;
my @ids = ();
sub _dbh_get_autoinc_seq {
my ($self, $dbh, $source, $col) = @_;
- # look up the correct sequence automatically
- my $sql = q{
- SELECT trigger_body FROM ALL_TRIGGERS t
- WHERE t.table_name = ?
- AND t.triggering_event = 'INSERT'
- AND t.status = 'ENABLED'
- };
-
- # trigger_body is a LONG
- local $dbh->{LongReadLen} = 64 * 1024 if ($dbh->{LongReadLen} < 64 * 1024);
-
- my $sth;
+ my $sql_maker = $self->sql_maker;
my $source_name;
- if ( ref $source->name ne 'SCALAR' ) {
- $source_name = $source->name;
+ if ( ref $source->name eq 'SCALAR' ) {
+ $source_name = ${$source->name};
}
else {
- $source_name = ${$source->name};
+ $source_name = $source->name;
}
+ $source_name = uc($source_name) unless $sql_maker->quote_char;
+
+ # trigger_body is a LONG
+ local $dbh->{LongReadLen} = 64 * 1024 if ($dbh->{LongReadLen} < 64 * 1024);
+
+ # disable default bindtype
+ local $sql_maker->{bindtype} = 'normal';
+
+ # look up the correct sequence automatically
+ my ( $schema, $table ) = $source_name =~ /(\w+)\.(\w+)/;
+ my ($sql, @bind) = $sql_maker->select (
+ 'ALL_TRIGGERS',
+ ['trigger_body'],
+ {
+ $schema ? (owner => $schema) : (),
+ table_name => $table || $source_name,
+ triggering_event => 'INSERT',
+ status => 'ENABLED',
+ },
+ );
+ my $sth = $dbh->prepare($sql);
+ $sth->execute (@bind);
- # check for fully-qualified name (eg. SCHEMA.TABLENAME)
- if ( my ( $schema, $table ) = $source_name =~ /(\w+)\.(\w+)/ ) {
- $sql = q{
- SELECT trigger_body FROM ALL_TRIGGERS t
- WHERE t.owner = ? AND t.table_name = ?
- AND t.triggering_event = 'INSERT'
- AND t.status = 'ENABLED'
- };
- $sth = $dbh->prepare($sql);
- $sth->execute( uc($schema), uc($table) );
- }
- else {
- $sth = $dbh->prepare($sql);
- $sth->execute( uc( $source_name ) );
- }
while (my ($insert_trigger) = $sth->fetchrow_array) {
- return uc($1) if $insert_trigger =~ m!(\w+)\.nextval!i; # col name goes here???
+ return $1 if $insert_trigger =~ m!("?\w+"?)\.nextval!i; # col name goes here???
}
- $self->throw_exception("Unable to find a sequence INSERT trigger on table '" . $source->name . "'.");
+ $self->throw_exception("Unable to find a sequence INSERT trigger on table '$source_name'.");
}
sub _sequence_fetch {
my $dbh = $self->_dbh or return 0;
local $dbh->{RaiseError} = 1;
+ local $dbh->{PrintError} = 0;
- eval {
- $dbh->do("select 1 from dual");
+ my $rc = 1;
+ try {
+ $dbh->do('select 1 from dual');
+ } catch {
+ $rc = 0;
};
- return $@ ? 0 : 1;
+ return $rc;
}
sub _dbh_execute {
RETRY: {
do {
- eval {
+ my $exception;
+ try {
if ($wantarray) {
@res = $self->next::method(@_);
} else {
$res[0] = $self->next::method(@_);
}
+ } catch {
+ $exception = shift;
};
- $exception = $@;
if ($exception =~ /ORA-01003/) {
# ORA-01003: no statement parsed (someone changed the table somehow,
# invalidating your cursor.)
$self->throw_exception($exception) if $exception;
- wantarray ? @res : $res[0]
+ $wantarray ? @res : $res[0]
}
=head2 get_autoinc_seq
sub columns_info_for {
my ($self, $table) = @_;
- $self->next::method(uc($table));
+ $self->next::method($table);
}
=head2 datetime_parser_type
on_connect_call => 'datetime_setup'
-In L<DBIx::Class::Storage::DBI/connect_info> to set the session nls date, and
-timestamp values for use with L<DBIx::Class::InflateColumn::DateTime> and the
-necessary environment variables for L<DateTime::Format::Oracle>, which is used
-by it.
+In L<connect_info|DBIx::Class::Storage::DBI/connect_info> to set the session nls
+date, and timestamp values for use with L<DBIx::Class::InflateColumn::DateTime>
+and the necessary environment variables for L<DateTime::Format::Oracle>, which
+is used by it.
Maximum allowable precision is used, unless the environment variables have
already been set.
my $timestamp_tz_format = $ENV{NLS_TIMESTAMP_TZ_FORMAT} ||=
'YYYY-MM-DD HH24:MI:SS.FF TZHTZM';
- $self->_do_query("alter session set nls_date_format = '$date_format'");
$self->_do_query(
-"alter session set nls_timestamp_format = '$timestamp_format'");
+ "alter session set nls_date_format = '$date_format'"
+ );
$self->_do_query(
-"alter session set nls_timestamp_tz_format='$timestamp_tz_format'");
+ "alter session set nls_timestamp_format = '$timestamp_format'"
+ );
+ $self->_do_query(
+ "alter session set nls_timestamp_tz_format='$timestamp_tz_format'"
+ );
}
=head2 source_bind_attributes
sub source_bind_attributes
{
- require DBD::Oracle;
- my $self = shift;
- my($source) = @_;
+ require DBD::Oracle;
+ my $self = shift;
+ my($source) = @_;
+
+ my %bind_attributes;
- my %bind_attributes;
+ foreach my $column ($source->columns) {
+ my $data_type = $source->column_info($column)->{data_type} || '';
+ next unless $data_type;
- foreach my $column ($source->columns) {
- my $data_type = $source->column_info($column)->{data_type} || '';
- next unless $data_type;
+ my %column_bind_attrs = $self->bind_attribute_by_data_type($data_type);
- my %column_bind_attrs = $self->bind_attribute_by_data_type($data_type);
+ if ($data_type =~ /^[BC]LOB$/i) {
+ if ($DBD::Oracle::VERSION eq '1.23') {
+ $self->throw_exception(
+"BLOB/CLOB support in DBD::Oracle == 1.23 is broken, use an earlier or later ".
+"version.\n\nSee: https://rt.cpan.org/Public/Bug/Display.html?id=46016\n"
+ );
+ }
- if ($data_type =~ /^[BC]LOB$/i) {
- $column_bind_attrs{'ora_type'} = uc($data_type) eq 'CLOB' ?
- DBD::Oracle::ORA_CLOB() :
- DBD::Oracle::ORA_BLOB();
- $column_bind_attrs{'ora_field'} = $column;
- }
+ $column_bind_attrs{'ora_type'} = uc($data_type) eq 'CLOB'
+ ? DBD::Oracle::ORA_CLOB()
+ : DBD::Oracle::ORA_BLOB()
+ ;
+ $column_bind_attrs{'ora_field'} = $column;
+ }
- $bind_attributes{$column} = \%column_bind_attrs;
- }
+ $bind_attributes{$column} = \%column_bind_attrs;
+ }
- return \%bind_attributes;
+ return \%bind_attributes;
}
sub _svp_begin {
- my ($self, $name) = @_;
-
- $self->_get_dbh->do("SAVEPOINT $name");
+ my ($self, $name) = @_;
+ $self->_get_dbh->do("SAVEPOINT $name");
}
# Oracle automatically releases a savepoint when you start another one with the
sub _svp_release { 1 }
sub _svp_rollback {
- my ($self, $name) = @_;
-
- $self->_get_dbh->do("ROLLBACK TO SAVEPOINT $name")
+ my ($self, $name) = @_;
+ $self->_get_dbh->do("ROLLBACK TO SAVEPOINT $name")
}
=head2 relname_to_table_alias
queries.
Unfortunately, Oracle doesn't support identifiers over 30 chars in length, so
-if the L<DBIx::Class::Relationship> name is shortened here if necessary.
+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">.
return $alias if length($alias) <= 30;
- $alias =~ s/[aeiou]//ig;
+ # get a base64 md5 of the alias with join_count
+ require Digest::MD5;
+ my $ctx = Digest::MD5->new;
+ $ctx->add($alias);
+ my $md5 = $ctx->b64digest;
- return $alias if length($alias) <= 30;
+ # remove alignment mark just in case
+ $md5 =~ s/=*\z//;
+
+ # truncate and prepend to truncated relname without vowels
+ (my $devoweled = $relname) =~ s/[aeiou]//g;
+ my $shortened = substr($devoweled, 0, 18);
+
+ my $new_alias =
+ $shortened . '_' . substr($md5, 0, 30 - length($shortened) - 1);
+
+ return $new_alias;
+}
+
+=head2 with_deferred_fk_checks
+
+Runs a coderef between:
+
+ alter session set constraints = deferred
+ ...
+ alter session set constraints = immediate
+
+to defer foreign key checks.
+
+Constraints must be declared C<DEFERRABLE> for this to work.
+
+=cut
+
+sub with_deferred_fk_checks {
+ my ($self, $sub) = @_;
+
+ my $txn_scope_guard = $self->txn_scope_guard;
- ($alias = $relname) =~ s/[aeiou]//ig;
- substr($alias, 0, 30 - length($join_count) - 1) = '';
- $alias .= "_$join_count";
+ $self->_do_query('alter session set constraints = deferred');
+
+ my $sg = Scope::Guard->new(sub {
+ $self->_do_query('alter session set constraints = immediate');
+ });
- return $alias;
+ return Context::Preserve::preserve_context(sub { $sub->() },
+ after => sub { $txn_scope_guard->commit });
}
=head1 AUTHOR
projects / dbsrgits/DBIx-Class.git / blobdiff