From: Peter Rabbitson Date: Tue, 25 May 2010 15:40:45 +0000 (+0000) Subject: Try::Tiny conversion finished X-Git-Tag: v0.08122~57^2~4 X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=52b420dd006f55aced42c669f49182890b8826ea;p=dbsrgits%2FDBIx-Class.git Try::Tiny conversion finished --- diff --git a/Changes b/Changes index e6c97fb..0f93936 100644 --- a/Changes +++ b/Changes @@ -8,6 +8,7 @@ Revision history for DBIx::Class - ::Storage::DBI now correctly preserves a parent $dbh from terminating children, even during interpreter-global out-of-order destruction + - All DBIC exception-handling switched to Try::Tiny - Add DBIx::Class::FilterColumn for non-ref filtering - InflateColumn::DateTime support for MSSQL via DBD::Sybase - Millisecond precision support for MSSQL datetimes for diff --git a/lib/DBIx/Class.pm b/lib/DBIx/Class.pm index f8bb0e4..6d86134 100644 --- a/lib/DBIx/Class.pm +++ b/lib/DBIx/Class.pm @@ -11,7 +11,6 @@ use DBIx::Class::Optional::Dependencies; use vars qw($VERSION); use base qw/DBIx::Class::Componentised Class::Accessor::Grouped/; use DBIx::Class::StartupCheck; -use Try::Tiny; sub mk_classdata { shift->mk_classaccessor(@_); diff --git a/lib/DBIx/Class/Relationship/Base.pm b/lib/DBIx/Class/Relationship/Base.pm index e533117..53dc14c 100644 --- a/lib/DBIx/Class/Relationship/Base.pm +++ b/lib/DBIx/Class/Relationship/Base.pm @@ -238,15 +238,15 @@ sub related_resultset { # condition resolution may fail if an incomplete master-object prefetch # is encountered - that is ok during prefetch construction (not yet in_storage) - my $cond; - try { $cond = $source->_resolve_condition( $rel_info->{cond}, $rel, $self ) } + my $cond = try { + $source->_resolve_condition( $rel_info->{cond}, $rel, $self ) + } catch { if ($self->in_storage) { $self->throw_exception ($_); } - else { - $cond = $DBIx::Class::ResultSource::UNRESOLVABLE_CONDITION; - } + + $DBIx::Class::ResultSource::UNRESOLVABLE_CONDITION; # RV }; if ($cond eq $DBIx::Class::ResultSource::UNRESOLVABLE_CONDITION) { diff --git a/lib/DBIx/Class/ResultSource.pm b/lib/DBIx/Class/ResultSource.pm index 171218b..6ac8538 100644 --- a/lib/DBIx/Class/ResultSource.pm +++ b/lib/DBIx/Class/ResultSource.pm @@ -368,11 +368,10 @@ sub column_info { $self->{_columns_info_loaded}++; my $info = {}; my $lc_info = {}; + # try for the case of storage without table - my $caught; - try { $info = $self->storage->columns_info_for( $self->from ) } - catch { $caught = 1 }; - unless ($caught) { + try { + $info = $self->storage->columns_info_for( $self->from ); for my $realcol ( keys %{$info} ) { $lc_info->{lc $realcol} = $info->{$realcol}; } @@ -382,7 +381,7 @@ sub column_info { %{ $info->{$col} || $lc_info->{lc $col} || {} } }; } - } + }; } return $self->_columns->{$column}; } @@ -1025,7 +1024,7 @@ sub add_relationship { return $self; - # XXX disabled. doesn't work properly currently. skip in tests. +# XXX disabled. doesn't work properly currently. skip in tests. my $f_source = $self->schema->source($f_source_name); unless ($f_source) { @@ -1041,10 +1040,11 @@ sub add_relationship { try { $self->_resolve_join($rel, 'me', {}, []) } catch { # If the resolve failed, back out and re-throw the error - delete $rels{$rel}; # + delete $rels{$rel}; $self->_relationships(\%rels); $self->throw_exception("Error creating relationship $rel: $_"); }; + 1; } diff --git a/lib/DBIx/Class/Schema/Versioned.pm b/lib/DBIx/Class/Schema/Versioned.pm index 853203b..8aa9b6a 100644 --- a/lib/DBIx/Class/Schema/Versioned.pm +++ b/lib/DBIx/Class/Schema/Versioned.pm @@ -725,16 +725,9 @@ sub _source_exists { my ($self, $rs) = @_; - my $c; - my $exception; - try { - $c = $rs->search({ 1, 0 })->count; - } catch { - $exception=1; - }; - return 0 if $exception || !defined $c; + my $c = try { $rs->search({ 1, 0 })->count }; - return 1; + return (defined $c) ? 1 : 0; } 1; diff --git a/lib/DBIx/Class/Storage.pm b/lib/DBIx/Class/Storage.pm index 0575c32..48762d1 100644 --- a/lib/DBIx/Class/Storage.pm +++ b/lib/DBIx/Class/Storage.pm @@ -212,23 +212,23 @@ sub txn_do { $coderef->(@args); } $self->txn_commit; - } catch { + } + catch { my $error = shift; try { $self->txn_rollback; } catch { - my $rollback_error = shift; my $exception_class = "DBIx::Class::Storage::NESTED_ROLLBACK_EXCEPTION"; $self->throw_exception($error) # propagate nested rollback - if $rollback_error =~ /$exception_class/; + if $_ =~ /$exception_class/; $self->throw_exception( - "Transaction aborted: $error. Rollback failed: ${rollback_error}" + "Transaction aborted: $error. Rollback failed: $_" ); } $self->throw_exception($error); # txn failed but rollback succeeded - } + }; return $wantarray ? @return_values : $return_value; } diff --git a/lib/DBIx/Class/Storage/DBI.pm b/lib/DBIx/Class/Storage/DBI.pm index c103721..76e9c49 100644 --- a/lib/DBIx/Class/Storage/DBI.pm +++ b/lib/DBIx/Class/Storage/DBI.pm @@ -16,7 +16,6 @@ use List::Util(); use Data::Dumper::Concise(); use Sub::Name (); use Try::Tiny; - use File::Path (); __PACKAGE__->mk_group_accessors('simple' => @@ -723,41 +722,25 @@ sub dbh_do { my $dbh = $self->_get_dbh; - return $self->$code($dbh, @_) if $self->{_in_dbh_do} - || $self->{transaction_depth}; + return $self->$code($dbh, @_) + if ( $self->{_in_dbh_do} || $self->{transaction_depth} ); local $self->{_in_dbh_do} = 1; - my @result; - my $want_array = wantarray; - - my $exception; my @args = @_; try { - - if($want_array) { - @result = $self->$code($dbh, @args); - } - elsif(defined $want_array) { - $result[0] = $self->$code($dbh, @args); - } - else { - $self->$code($dbh, @args); - } + return $self->$code ($dbh, @args); } catch { - $exception = shift; - }; - - if(! defined $exception) { return $want_array ? @result : $result[0] } + $self->throw_exception($_) if $self->connected; - $self->throw_exception($exception) if $self->connected; + # We were not connected - reconnect and retry, but let any + # exception fall right through this time + carp "Retrying $code after catching disconnected exception: $_" + if $ENV{DBIC_DBIRETRY_DEBUG}; - # We were not connected - reconnect and retry, but let any - # exception fall right through this time - carp "Retrying $code after catching disconnected exception: $exception" - if $ENV{DBIC_DBIRETRY_DEBUG}; - $self->_populate_dbh; - $self->$code($self->_dbh, @_); + $self->_populate_dbh; + $self->$code($self->_dbh, @args); + }; } # This is basically a blend of dbh_do above and DBIx::Class::Storage::txn_do. @@ -1174,7 +1157,6 @@ sub _connect { $DBI::connect_via = 'connect'; } - my $exception; try { if(ref $info[0] eq 'CODE') { $dbh = $info[0]->(); @@ -1183,7 +1165,11 @@ sub _connect { $dbh = DBI->connect(@info); } - if($dbh && !$self->unsafe) { + if (!$dbh) { + die $DBI::errstr; + } + + unless ($self->unsafe) { my $weak_self = $self; Scalar::Util::weaken($weak_self); $dbh->{HandleError} = sub { @@ -1200,17 +1186,15 @@ sub _connect { $dbh->{RaiseError} = 1; $dbh->{PrintError} = 0; } - } catch { - $exception = $_; + } + catch { + $self->throw_exception("DBI Connection failed: $_") + } + finally { + $DBI::connect_via = $old_connect_via if $old_connect_via; }; - $DBI::connect_via = $old_connect_via if $old_connect_via; - - $self->throw_exception("DBI Connection failed: " . ((defined $exception && $exception) || $DBI::errstr)) - if !$dbh || defined $exception; - $self->_dbh_autocommit($dbh->{AutoCommit}); - $dbh; } @@ -1376,14 +1360,17 @@ sub txn_rollback { else { die DBIx::Class::Storage::NESTED_ROLLBACK_EXCEPTION->new; } - } catch { - my $error = shift; - my $exception_class = "DBIx::Class::Storage::NESTED_ROLLBACK_EXCEPTION"; - $error =~ /$exception_class/ and $self->throw_exception($error); - # ensure that a failed rollback resets the transaction depth - $self->{transaction_depth} = $self->_dbh_autocommit ? 0 : 1; - $self->throw_exception($error); } + catch { + my $exception_class = "DBIx::Class::Storage::NESTED_ROLLBACK_EXCEPTION"; + + if ($_ !~ /$exception_class/) { + # ensure that a failed rollback resets the transaction depth + $self->{transaction_depth} = $self->_dbh_autocommit ? 0 : 1; + } + + $self->throw_exception($_) + }; } sub _dbh_rollback { @@ -1680,18 +1667,25 @@ sub _execute_array { $placeholder_index++; } - my $rv; - my $err; + my ($rv, $err); try { $rv = $self->_dbh_execute_array($sth, $tuple_status, @extra); - } catch { + } + catch { $err = shift; + } + finally { + # Statement must finish even if there was an exception. + try { + $sth->finish + } + catch { + $err = shift unless defined $err + }; }; - $err = defined $err ? $err : ($sth->err ? $sth->errstr : undef ); -# Statement must finish even if there was an exception. - try { $sth->finish } - catch { $err = shift unless defined $err }; + $err = $sth->errstr + if (! defined $err and $sth->err); if (defined $err) { my $i = 0; @@ -1707,6 +1701,7 @@ sub _execute_array { }), ); } + return $rv; } @@ -1719,25 +1714,28 @@ sub _dbh_execute_array { sub _dbh_execute_inserts_with_no_binds { my ($self, $sth, $count) = @_; - my $exception; + my $err; try { my $dbh = $self->_get_dbh; local $dbh->{RaiseError} = 1; local $dbh->{PrintError} = 0; $sth->execute foreach 1..$count; - } catch { - $exception = shift; - }; - -# Make sure statement is finished even if there was an exception. - try { - $sth->finish - } catch { - $exception = shift unless defined $exception; + } + catch { + $err = shift; + } + finally { + # Make sure statement is finished even if there was an exception. + try { + $sth->finish + } + catch { + $err = shift unless defined $err; + }; }; - $self->throw_exception($exception) if defined $exception; + $self->throw_exception($err) if defined $err; return $count; } @@ -2192,15 +2190,15 @@ sub _placeholders_supported { # some drivers provide a $dbh attribute (e.g. Sybase and $dbh->{syb_dynamic_supported}) # but it is inaccurate more often than not - my $rc = 1; - try { + return try { local $dbh->{PrintError} = 0; local $dbh->{RaiseError} = 1; $dbh->do('select ?', {}, 1); - } catch { - $rc = 0; + 1; + } + catch { + 0; }; - return $rc; } # Check if placeholders bound to non-string types throw exceptions @@ -2209,16 +2207,16 @@ sub _typeless_placeholders_supported { my $self = shift; my $dbh = $self->_get_dbh; - my $rc = 1; - try { + return try { local $dbh->{PrintError} = 0; local $dbh->{RaiseError} = 1; # this specifically tests a bind that is NOT a string $dbh->do('select 1 where 1 = ?', {}, 1); - } catch { - $rc = 0; + 1; + } + catch { + 0; }; - return $rc; } =head2 sqlt_type diff --git a/lib/DBIx/Class/Storage/DBI/ADO.pm b/lib/DBIx/Class/Storage/DBI/ADO.pm index 6523664..83d2a09 100644 --- a/lib/DBIx/Class/Storage/DBI/ADO.pm +++ b/lib/DBIx/Class/Storage/DBI/ADO.pm @@ -11,24 +11,18 @@ sub _rebless { # XXX This should be using an OpenSchema method of some sort, but I don't know # how. # Current version is stolen from Sybase.pm - my $caught; - my $dbtype; try { - $dbtype = @{$self->_get_dbh + my $dbtype = @{$self->_get_dbh ->selectrow_arrayref(qq{sp_server_info \@attribute_id=1}) - }[2] - } catch { - $caught = 1; - }; + }[2]; - unless ($caught) { $dbtype =~ s/\W/_/gi; my $subclass = "DBIx::Class::Storage::DBI::ADO::${dbtype}"; if ($self->load_optional_class($subclass) && !$self->isa($subclass)) { bless $self, $subclass; $self->_rebless; } - } + }; } # Here I was just experimenting with ADO cursor types, left in as a comment in diff --git a/lib/DBIx/Class/Storage/DBI/Cursor.pm b/lib/DBIx/Class/Storage/DBI/Cursor.pm index ef3ba30..352ba08 100644 --- a/lib/DBIx/Class/Storage/DBI/Cursor.pm +++ b/lib/DBIx/Class/Storage/DBI/Cursor.pm @@ -152,7 +152,8 @@ sub reset { my ($self) = @_; # No need to care about failures here - try { $self->sth->finish if $self->sth && $self->sth->{Active} }; + try { $self->sth->finish } + if $self->sth && $self->sth->{Active}; $self->_soft_reset; return undef; } @@ -178,7 +179,8 @@ sub DESTROY { my ($self) = @_; # None of the reasons this would die matter if we're in DESTROY anyways - try { $self->sth->finish if $self->sth && $self->sth->{Active} }; + try { $self->sth->finish } + if $self->sth && $self->sth->{Active}; } 1; diff --git a/lib/DBIx/Class/Storage/DBI/InterBase.pm b/lib/DBIx/Class/Storage/DBI/InterBase.pm index db1021a..4c4217a 100644 --- a/lib/DBIx/Class/Storage/DBI/InterBase.pm +++ b/lib/DBIx/Class/Storage/DBI/InterBase.pm @@ -126,14 +126,12 @@ sub _ping { local $dbh->{RaiseError} = 1; local $dbh->{PrintError} = 0; - my $rc = 1; - try { + return try { $dbh->do('select 1 from rdb$database'); + 1; } catch { - $rc = 0; + 0; }; - - return $rc; } # We want dialect 3 for new features and quoting to work, DBD::InterBase uses diff --git a/lib/DBIx/Class/Storage/DBI/MSSQL.pm b/lib/DBIx/Class/Storage/DBI/MSSQL.pm index 5218070..0b1e57e 100644 --- a/lib/DBIx/Class/Storage/DBI/MSSQL.pm +++ b/lib/DBIx/Class/Storage/DBI/MSSQL.pm @@ -242,14 +242,12 @@ sub _ping { local $dbh->{RaiseError} = 1; local $dbh->{PrintError} = 0; - my $rc = 1; - try { + return try { $dbh->do('select 1'); + 1; } catch { - $rc = 0; + 0; }; - - return $rc; } package # hide from PAUSE diff --git a/lib/DBIx/Class/Storage/DBI/ODBC.pm b/lib/DBIx/Class/Storage/DBI/ODBC.pm index 98ca586..8f2642c 100644 --- a/lib/DBIx/Class/Storage/DBI/ODBC.pm +++ b/lib/DBIx/Class/Storage/DBI/ODBC.pm @@ -7,22 +7,20 @@ use mro 'c3'; use Try::Tiny; sub _rebless { - my ($self) = @_; - - my $caught; - my $dbtype; - try { $self->_get_dbh->get_info(17) } - catch { $caught = 1 }; - - unless ( $caught ) { - # Translate the backend name into a perl identifier - $dbtype =~ s/\W/_/gi; - my $subclass = "DBIx::Class::Storage::DBI::ODBC::${dbtype}"; - if ($self->load_optional_class($subclass) && !$self->isa($subclass)) { - bless $self, $subclass; - $self->_rebless; - } + my ($self) = @_; + + try { + my $dbtype = $self->_get_dbh->get_info(17); + + # Translate the backend name into a perl identifier + $dbtype =~ s/\W/_/gi; + my $subclass = "DBIx::Class::Storage::DBI::ODBC::${dbtype}"; + + if ($self->load_optional_class($subclass) && !$self->isa($subclass)) { + bless $self, $subclass; + $self->_rebless; } + }; } 1; diff --git a/lib/DBIx/Class/Storage/DBI/Oracle.pm b/lib/DBIx/Class/Storage/DBI/Oracle.pm index cfa9df6..b977ec6 100644 --- a/lib/DBIx/Class/Storage/DBI/Oracle.pm +++ b/lib/DBIx/Class/Storage/DBI/Oracle.pm @@ -10,22 +10,19 @@ use Try::Tiny; sub _rebless { my ($self) = @_; - my $caught; - my $version; - try { $self->_get_dbh->get_info(18); } - catch { $caught = 1 }; - - if ( ! $caught ) { - my ($major, $minor, $patchlevel) = split(/\./, $version); - - # Default driver - my $class = $major <= 8 - ? 'DBIx::Class::Storage::DBI::Oracle::WhereJoins' - : 'DBIx::Class::Storage::DBI::Oracle::Generic'; - - $self->ensure_class_loaded ($class); - bless $self, $class; - } + try { + my $version = $self->_get_dbh->get_info(18); + + my ($major, $minor, $patchlevel) = split(/\./, $version); + + # Default driver + my $class = $major <= 8 + ? 'DBIx::Class::Storage::DBI::Oracle::WhereJoins' + : 'DBIx::Class::Storage::DBI::Oracle::Generic'; + + $self->ensure_class_loaded ($class); + bless $self, $class; + }; } 1; diff --git a/lib/DBIx/Class/Storage/DBI/Oracle/Generic.pm b/lib/DBIx/Class/Storage/DBI/Oracle/Generic.pm index 74c151d..3c28b08 100644 --- a/lib/DBIx/Class/Storage/DBI/Oracle/Generic.pm +++ b/lib/DBIx/Class/Storage/DBI/Oracle/Generic.pm @@ -113,50 +113,35 @@ sub _ping { local $dbh->{RaiseError} = 1; local $dbh->{PrintError} = 0; - my $rc = 1; - try { + return try { $dbh->do('select 1 from dual'); + 1; } catch { - $rc = 0; + 0; }; - - return $rc; } sub _dbh_execute { my $self = shift; my ($dbh, $op, $extra_bind, $ident, $bind_attributes, @args) = @_; - my $wantarray = wantarray; - - my (@res, $exception, $retried); - - RETRY: { - do { - my $exception; - try { - if ($wantarray) { - @res = $self->next::method(@_); - } else { - $res[0] = $self->next::method(@_); - } - } catch { - $exception = shift; - }; - if ($exception =~ /ORA-01003/) { + my $retried; + do { + try { + return $self->next::method($dbh, $op, $extra_bind, $ident, $bind_attributes, @args); + } + catch { + if (!$retried and $_ =~ /ORA-01003/) { # ORA-01003: no statement parsed (someone changed the table somehow, # invalidating your cursor.) my ($sql, $bind) = $self->_prep_for_execute($op, $extra_bind, $ident, \@args); delete $dbh->{CachedKids}{$sql}; - } else { - last RETRY; } - } while (not $retried++); - } - - $self->throw_exception($exception) if $exception; - - $wantarray ? @res : $res[0] + else { + $self->throw_exception($_); + } + }; + } while (not $retried++); } =head2 get_autoinc_seq diff --git a/lib/DBIx/Class/Storage/DBI/Replicated.pm b/lib/DBIx/Class/Storage/DBI/Replicated.pm index 1024d47..783d334 100644 --- a/lib/DBIx/Class/Storage/DBI/Replicated.pm +++ b/lib/DBIx/Class/Storage/DBI/Replicated.pm @@ -651,7 +651,6 @@ sub execute_reliably { my @result; my $want_array = wantarray; - my $exception; try { if($want_array) { @result = $coderef->(@args); diff --git a/lib/DBIx/Class/Storage/DBI/Replicated/Pool.pm b/lib/DBIx/Class/Storage/DBI/Replicated/Pool.pm index a9f3793..7ce7de9 100644 --- a/lib/DBIx/Class/Storage/DBI/Replicated/Pool.pm +++ b/lib/DBIx/Class/Storage/DBI/Replicated/Pool.pm @@ -294,18 +294,16 @@ Returns 1 on success and undef on failure. sub _safely { my ($self, $replicant, $name, $code) = @_; - my $rc = 1; - try { - $code->() + return try { + $code->(); + 1; } catch { $replicant->debugobj->print(sprintf( "Exception trying to $name for replicant %s, error is %s", $replicant->_dbi_connect_info->[0], $_) ); - $rc = undef; + undef; }; - - return $rc; } =head2 connected_replicants diff --git a/lib/DBIx/Class/Storage/DBI/Replicated/WithDSN.pm b/lib/DBIx/Class/Storage/DBI/Replicated/WithDSN.pm index a8e2d8a..50f4f8b 100644 --- a/lib/DBIx/Class/Storage/DBI/Replicated/WithDSN.pm +++ b/lib/DBIx/Class/Storage/DBI/Replicated/WithDSN.pm @@ -5,6 +5,7 @@ use Scalar::Util 'reftype'; requires qw/_query_start/; use namespace::clean -except => 'meta'; +use Try::Tiny; =head1 NAME diff --git a/lib/DBIx/Class/Storage/DBI/SQLAnywhere.pm b/lib/DBIx/Class/Storage/DBI/SQLAnywhere.pm index 38a1775..0837554 100644 --- a/lib/DBIx/Class/Storage/DBI/SQLAnywhere.pm +++ b/lib/DBIx/Class/Storage/DBI/SQLAnywhere.pm @@ -5,6 +5,7 @@ use warnings; use base qw/DBIx::Class::Storage::DBI::UniqueIdentifier/; use mro 'c3'; use List::Util (); +use Try::Tiny; __PACKAGE__->mk_group_accessors(simple => qw/ _identity @@ -115,7 +116,7 @@ sub build_datetime_parser { my $self = shift; my $type = "DateTime::Format::Strptime"; try { - eval "use ${type}" + eval "require ${type}" } catch { $self->throw_exception("Couldn't load ${type}: $_"); diff --git a/lib/DBIx/Class/Storage/DBI/Sybase.pm b/lib/DBIx/Class/Storage/DBI/Sybase.pm index 3fe0930..9b1214c 100644 --- a/lib/DBIx/Class/Storage/DBI/Sybase.pm +++ b/lib/DBIx/Class/Storage/DBI/Sybase.pm @@ -54,21 +54,17 @@ sub _ping { if ($dbh->{syb_no_child_con}) { # if extra connections are not allowed, then ->ping is reliable - my $alive; - try { $alive = $dbh->ping } catch { $alive = 0 }; - return $alive; + return try { $dbh->ping } catch { 0; }; } - my $rc = 1; - try { + return try { # XXX if the main connection goes stale, does opening another for this statement # really determine anything? $dbh->do('select 1'); + 1; } catch { - $rc = 0; + 0; }; - - return $rc; } sub _set_max_connect {