use warnings;
use base qw/DBIx::Class::Schema::Loader::Base/;
use mro 'c3';
-use Carp::Clan qw/^DBIx::Class/;
use Try::Tiny;
+use List::MoreUtils 'any';
+use Carp::Clan qw/^DBIx::Class/;
use namespace::clean;
+use DBIx::Class::Schema::Loader::Table ();
-our $VERSION = '0.07010';
+our $VERSION = '0.07019';
__PACKAGE__->mk_group_accessors('simple', qw/
_disable_pk_detection
_disable_uniq_detection
_disable_fk_detection
_passwords
+ quote_char
+ name_sep
/);
=head1 NAME
# rebless to vendor-specific class if it exists and loads and we're not in a
# custom class.
if (not $self->loader_class) {
- my $dbh = $self->schema->storage->dbh;
- my $driver = $dbh->{Driver}->{Name};
+ my $driver = $self->dbh->{Driver}->{Name};
my $subclass = 'DBIx::Class::Schema::Loader::DBI::' . $driver;
if ($self->load_optional_class($subclass)) {
}
# Set up the default quoting character and name seperators
- $self->{_quoter} = $self->_build_quoter;
- $self->{_namesep} = $self->_build_namesep;
-
- # For our usage as regex matches, concatenating multiple quoter
- # values works fine (e.g. s/\Q<>\E// if quoter was [ '<', '>' ])
- if( ref $self->{_quoter} eq 'ARRAY') {
- $self->{_quoter} = join(q{}, @{$self->{_quoter}});
- }
+ $self->quote_char($self->_build_quote_char);
+ $self->name_sep($self->_build_name_sep);
$self->_setup;
$self;
}
-sub _build_quoter {
+sub _build_quote_char {
my $self = shift;
- my $dbh = $self->schema->storage->dbh;
- return $dbh->get_info(29)
+
+ my $quote_char = $self->dbh->get_info(29)
|| $self->schema->storage->sql_maker->quote_char
|| q{"};
+
+ # For our usage as regex matches, concatenating multiple quote_char
+ # values works fine (e.g. s/[\Q<>\E]// if quote_char was [ '<', '>' ])
+ if (ref $quote_char eq 'ARRAY') {
+ $quote_char = join '', @$quote_char;
+ }
+
+ return $quote_char;
}
-sub _build_namesep {
+sub _build_name_sep {
my $self = shift;
- my $dbh = $self->schema->storage->dbh;
- return $dbh->get_info(41)
+ return $self->dbh->get_info(41)
|| $self->schema->storage->sql_maker->name_sep
- || q{.};
+ || '.';
}
# Override this in vendor modules to do things at the end of ->new()
# Override this in vendor module to load a subclass if necessary
sub _rebless { }
-# Returns an array of table names
+sub _system_schemas {
+ return ('information_schema');
+}
+
+sub _system_tables {
+ return ();
+}
+
+sub _dbh_tables {
+ my ($self, $schema) = (shift, shift);
+
+ my ($table_pattern, $table_type_pattern) = @_ ? @_ : ('%', '%');
+
+ return $self->dbh->tables(undef, $schema, $table_pattern, $table_type_pattern);
+}
+
+# default to be overridden in subclasses if necessary
+sub _supports_db_schema { 1 }
+
+# Returns an array of table objects
sub _tables_list {
my ($self, $opts) = (shift, shift);
- my ($table, $type) = @_ ? @_ : ('%', '%');
+ my @tables;
+
+ my $qt = qr/[\Q$self->{quote_char}\E"'`\[\]]/;
+ my $nqt = qr/[^\Q$self->{quote_char}\E"'`\[\]]/;
+ my $ns = qr/[\Q$self->{name_sep}\E]/;
+ my $nns = qr/[^\Q$self->{name_sep}\E]/;
+
+ foreach my $schema (@{ $self->db_schema || [undef] }) {
+ my @raw_table_names = $self->_dbh_tables($schema, @_);
+
+ TABLE: foreach my $raw_table_name (@raw_table_names) {
+ my $quoted = $raw_table_name =~ /^$qt/;
+
+ # These regexes are not entirely correct, but hopefully they will work
+ # in most cases. RT reports welcome.
+ my ($schema_name, $table_name1, $table_name2) = $quoted ?
+ $raw_table_name =~ /^(?:${qt}(${nqt}+?)${qt}${ns})?(?:${qt}(.+?)${qt}|(${nns}+))\z/
+ :
+ $raw_table_name =~ /^(?:(${nns}+?)${ns})?(?:${qt}(.+?)${qt}|(${nns}+))\z/;
+
+ my $table_name = $table_name1 || $table_name2;
+
+ foreach my $system_schema ($self->_system_schemas) {
+ if ($schema_name) {
+ my $matches = 0;
+
+ if (ref $system_schema) {
+ $matches = 1
+ if $schema_name =~ $system_schema
+ && $schema !~ $system_schema;
+ }
+ else {
+ $matches = 1
+ if $schema_name eq $system_schema
+ && $schema ne $system_schema;
+ }
+
+ next TABLE if $matches;
+ }
+ }
- my $dbh = $self->schema->storage->dbh;
- my @tables = $dbh->tables(undef, $self->db_schema, $table, $type);
+ foreach my $system_table ($self->_system_tables) {
+ my $matches = 0;
- my $qt = qr/[\Q$self->{_quoter}\E"'`\[\]]/;
+ if (ref $system_table) {
+ $matches = 1 if $table_name =~ $system_table;
+ }
+ else {
+ $matches = 1 if $table_name eq $system_table
+ }
- my $all_tables_quoted = (grep /$qt/, @tables) == @tables;
+ next TABLE if $matches;
+ }
+
+ $schema_name ||= $schema;
+
+ my $table = DBIx::Class::Schema::Loader::Table->new(
+ loader => $self,
+ name => $table_name,
+ schema => $schema_name,
+ ($self->_supports_db_schema ? () : (
+ ignore_schema => 1
+ )),
+ );
- if ($self->{_quoter} && $all_tables_quoted) {
- s/.* $qt (?= .* $qt)//xg for @tables;
- } else {
- s/^.*\Q$self->{_namesep}\E// for @tables;
+ push @tables, $table;
+ }
}
- s/$qt//g for @tables;
return $self->_filter_tables(\@tables, $opts);
}
my $constraint = $opts->{constraint};
my $exclude = $opts->{exclude};
- @tables = grep { /$constraint/ } @$tables if defined $constraint;
- @tables = grep { ! /$exclude/ } @$tables if defined $exclude;
+ @tables = grep { /$constraint/ } @tables if defined $constraint;
+ @tables = grep { ! /$exclude/ } @tables if defined $exclude;
- LOOP: for my $table (@tables) {
+ TABLE: for my $table (@tables) {
try {
local $^W = 0; # for ADO
my $sth = $self->_sth_for($table, undef, \'1 = 0');
$sth->execute;
+ 1;
}
catch {
warn "Bad table or view '$table', ignoring: $_\n";
- $self->_unregister_source_for_table($table);
- no warnings 'exiting';
- next LOOP;
- };
+ 0;
+ } or next TABLE;
push @filtered_tables, $table;
}
sub load {
my $self = shift;
- local $self->schema->storage->dbh->{RaiseError} = 1;
- local $self->schema->storage->dbh->{PrintError} = 0;
- $self->next::method(@_);
-}
+ local $self->dbh->{RaiseError} = 1;
+ local $self->dbh->{PrintError} = 0;
-sub _table_as_sql {
- my ($self, $table) = @_;
-
- if($self->{db_schema}) {
- $table = $self->{db_schema} . $self->{_namesep} .
- $self->_quote_table_name($table);
- } else {
- $table = $self->_quote_table_name($table);
- }
+ $self->next::method(@_);
- return $table;
+ $self->schema->storage->disconnect unless $self->dynamic;
}
sub _sth_for {
my ($self, $table, $fields, $where) = @_;
- my $dbh = $self->schema->storage->dbh;
-
- my $sth = $dbh->prepare($self->schema->storage->sql_maker
- ->select(\$self->_table_as_sql($table), $fields, $where));
+ my $sth = $self->dbh->prepare($self->schema->storage->sql_maker
+ ->select(\$table->sql_name, $fields, $where));
return $sth;
}
my $sth = $self->_sth_for($table, undef, \'1 = 0');
$sth->execute;
- my $retval = $self->preserve_case ? \@{$sth->{NAME}} : \@{$sth->{NAME_lc}};
+
+ my $retval = [ map $self->_lc($_), @{$sth->{NAME}} ];
+
$sth->finish;
- $retval;
+ return $retval;
}
# Returns arrayref of pk col names
return [] if $self->_disable_pk_detection;
- my $dbh = $self->schema->storage->dbh;
-
my @primary = try {
- $dbh->primary_key('', $self->db_schema, $table);
+ $self->dbh->primary_key('', $table->schema, $table->name);
}
catch {
warn "Cannot find primary keys for this driver: $_";
return [] if not @primary;
@primary = map { $self->_lc($_) } @primary;
- s/\Q$self->{_quoter}\E//g for @primary;
+ s/[\Q$self->{quote_char}\E]//g for @primary;
return \@primary;
}
return [] if $self->_disable_uniq_detection;
- my $dbh = $self->schema->storage->dbh;
-
- if (not $dbh->can('statistics_info')) {
+ if (not $self->dbh->can('statistics_info')) {
warn "No UNIQUE constraint information can be gathered for this driver";
$self->_disable_uniq_detection(1);
return [];
}
my %indices;
- my $sth = $dbh->statistics_info(undef, $self->db_schema, $table, 1, 1);
+ my $sth = $self->dbh->statistics_info(undef, $table->schema, $table->name, 1, 1);
while(my $row = $sth->fetchrow_hashref) {
# skip table-level stats, conditional indexes, and any index missing
# critical fields
return \@retval;
}
+sub _table_comment {
+ my ($self, $table) = @_;
+ my $dbh = $self->dbh;
+
+ my $comments_table = $table->clone;
+ $comments_table->name($self->table_comments_table);
+
+ my ($comment) =
+ (exists $self->_tables->{$comments_table->sql_name} || undef)
+ && try { $dbh->selectrow_array(<<"EOF") };
+SELECT comment_text
+FROM @{[ $comments_table->sql_name ]}
+WHERE table_name = @{[ $dbh->quote($table->name) ]}
+EOF
+
+ # Failback: try the REMARKS column on table_info
+ if (!$comment && $dbh->can('table_info')) {
+ my $sth = $self->_dbh_table_info( $dbh, undef, $table->schema, $table->name );
+ my $info = $sth->fetchrow_hashref();
+ $comment = $info->{REMARKS};
+ }
+
+ return $comment;
+}
+
+sub _column_comment {
+ my ($self, $table, $column_number, $column_name) = @_;
+ my $dbh = $self->dbh;
+
+ my $comments_table = $table->clone;
+ $comments_table->name($self->column_comments_table);
+
+ my ($comment) =
+ (exists $self->_tables->{$comments_table->sql_name} || undef)
+ && try { $dbh->selectrow_array(<<"EOF") };
+SELECT comment_text
+FROM @{[ $comments_table->sql_name ]}
+WHERE table_name = @{[ $dbh->quote($table->name) ]}
+AND column_name = @{[ $dbh->quote($column_name) ]}
+EOF
+
+ # Failback: try the REMARKS column on column_info
+ if (!$comment && $dbh->can('column_info')) {
+ if (my $sth = try { $self->_dbh_column_info( $dbh, undef, $table->schema, $table->name, $column_name ) }) {
+ my $info = $sth->fetchrow_hashref();
+ $comment = $info->{REMARKS};
+ }
+ }
+
+ return $comment;
+}
+
# Find relationships
sub _table_fk_info {
my ($self, $table) = @_;
return [] if $self->_disable_fk_detection;
- my $dbh = $self->schema->storage->dbh;
my $sth = try {
- $dbh->foreign_key_info( '', $self->db_schema, '',
- '', $self->db_schema, $table );
+ $self->dbh->foreign_key_info( '', '', '',
+ '', ($table->schema || ''), $table->name );
}
catch {
warn "Cannot introspect relationships for this driver: $_";
my %rels;
my $i = 1; # for unnamed rels, which hopefully have only 1 column ...
- while(my $raw_rel = $sth->fetchrow_arrayref) {
+ REL: while(my $raw_rel = $sth->fetchrow_arrayref) {
+ my $uk_scm = $raw_rel->[1];
my $uk_tbl = $raw_rel->[2];
my $uk_col = $self->_lc($raw_rel->[3]);
+ my $fk_scm = $raw_rel->[5];
my $fk_col = $self->_lc($raw_rel->[7]);
my $relid = ($raw_rel->[11] || ( "__dcsld__" . $i++ ));
- $uk_tbl =~ s/\Q$self->{_quoter}\E//g;
- $uk_col =~ s/\Q$self->{_quoter}\E//g;
- $fk_col =~ s/\Q$self->{_quoter}\E//g;
- $relid =~ s/\Q$self->{_quoter}\E//g;
- $rels{$relid}->{tbl} = $uk_tbl;
- $rels{$relid}->{cols}{$uk_col} = $fk_col;
+
+ foreach my $var ($uk_scm, $uk_tbl, $uk_col, $fk_scm, $fk_col, $relid) {
+ $var =~ s/[\Q$self->{quote_char}\E]//g if defined $var;
+ }
+
+ if ($self->db_schema && $self->db_schema->[0] ne '%'
+ && (not any { $_ eq $uk_scm } @{ $self->db_schema })) {
+
+ next REL;
+ }
+
+ $rels{$relid}{tbl} = DBIx::Class::Schema::Loader::Table->new(
+ loader => $self,
+ name => $uk_tbl,
+ schema => $uk_scm,
+ ($self->_supports_db_schema ? () : (
+ ignore_schema => 1
+ )),
+ );
+ $rels{$relid}{cols}{$uk_col} = $fk_col;
}
$sth->finish;
my %result;
- if ($dbh->can('column_info')) {
- my $sth = $self->_dbh_column_info($dbh, undef, $self->db_schema, $table, '%' );
- while ( my $info = $sth->fetchrow_hashref() ){
+ if (my $sth = try { $self->_dbh_column_info($dbh, undef, $table->schema, $table->name, '%' ) }) {
+ COL_INFO: while (my $info = try { $sth->fetchrow_hashref } catch { +{} }) {
+ next COL_INFO unless %$info;
+
my $column_info = {};
$column_info->{data_type} = lc $info->{TYPE_NAME};
my $col_name = $info->{COLUMN_NAME};
$col_name =~ s/^\"(.*)\"$/$1/;
- $col_name = $self->_lc($col_name);
-
my $extra_info = $self->_extra_column_info(
$table, $col_name, $column_info, $info
) || {};
$result{$col_name} = $column_info;
}
$sth->finish;
-
- return \%result if %result;
}
my $sth = $self->_sth_for($table, undef, \'1 = 0');
my @columns = @{ $sth->{NAME} };
- for my $i (0 .. $#columns) {
+ COL: for my $i (0 .. $#columns) {
+ next COL if %{ $result{ $columns[$i] }||{} };
+
my $column_info = {};
$column_info->{data_type} = lc $sth->{TYPE}[$i];
$column_info->{size} = $2;
}
- my $extra_info = $self->_extra_column_info($table, $columns[$i], $column_info) || {};
+ my $extra_info = $self->_extra_column_info($table, $columns[$i], $column_info, $sth) || {};
$column_info = { %$column_info, %$extra_info };
- $result{ $self->_lc($columns[$i]) } = $column_info;
+ $result{ $columns[$i] } = $column_info;
}
$sth->finish;
my $type_num = $colinfo->{data_type};
my $type_name;
if (defined $type_num && $type_num =~ /^-?\d+\z/ && $dbh->can('type_info')) {
- my $type_info = try { $dbh->type_info($type_num) };
- $type_name = $type_info->{TYPE_NAME} if $type_info;
+ my $type_name = $self->_dbh_type_info_type_name($type_num);
$colinfo->{data_type} = lc $type_name if $type_name;
}
}
+ # check for instances of the same column name with different case in preserve_case=0 mode
+ if (not $self->preserve_case) {
+ my %lc_colnames;
+
+ foreach my $col (keys %result) {
+ push @{ $lc_colnames{lc $col} }, $col;
+ }
+
+ if (keys %lc_colnames != keys %result) {
+ my @offending_colnames = map @$_, grep @$_ > 1, values %lc_colnames;
+
+ my $offending_colnames = join ", ", map "'$_'", @offending_colnames;
+
+ croak "columns $offending_colnames in table @{[ $table->sql_name ]} collide in preserve_case=0 mode. preserve_case=1 mode required";
+ }
+
+ # apply lowercasing
+ my %lc_result;
+
+ while (my ($col, $info) = each %result) {
+ $lc_result{ $self->_lc($col) } = $info;
+ }
+
+ %result = %lc_result;
+ }
+
return \%result;
}
+# Need to override this for the buggy Firebird ODBC driver.
+sub _dbh_type_info_type_name {
+ my ($self, $type_num) = @_;
+
+ # We wrap it in a try block for MSSQL+DBD::Sybase, which can have issues.
+ # TODO investigate further
+ my $type_info = try { $self->dbh->type_info($type_num) };
+
+ return $type_info ? $type_info->{TYPE_NAME} : undef;
+}
+
# do not use this, override _columns_info_for instead
sub _extra_column_info {}
+# override to mask warnings if needed
+sub _dbh_table_info {
+ my ($self, $dbh) = (shift, shift);
+
+ return $dbh->table_info(@_);
+}
+
# override to mask warnings if needed (see mysql)
sub _dbh_column_info {
my ($self, $dbh) = (shift, shift);
return ($dsn, $user, $pass, $params);
}
+sub dbh {
+ my $self = shift;
+
+ return $self->schema->storage->dbh;
+}
+
=head1 SEE ALSO
L<DBIx::Class::Schema::Loader>