use warnings;
use base qw/DBIx::Class::Schema::Loader::Base/;
use mro 'c3';
-use Carp::Clan qw/^DBIx::Class/;
use Try::Tiny;
+use List::Util 'any';
+use Carp::Clan qw/^DBIx::Class/;
use namespace::clean;
+use DBIx::Class::Schema::Loader::Table ();
-our $VERSION = '0.07010';
+our $VERSION = '0.07047';
__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)) {
- bless $self, $subclass unless $self->isa($subclass);
+ if ((not $self->isa($subclass)) && $self->load_optional_class($subclass)) {
+ bless $self, $subclass;
$self->_rebless;
+ Class::C3::reinitialize() if $] < 5.009005;
}
}
- # 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}});
- }
+ # Set up the default quoting character and name separators
+ $self->quote_char($self->_build_quote_char);
+ $self->name_sep($self->_build_name_sep);
$self->_setup;
- $self;
+ return $self;
}
-sub _build_quoter {
+sub _build_quote_char {
my $self = shift;
- my $dbh = $self->schema->storage->dbh;
- return $dbh->get_info(29)
- || $self->schema->storage->sql_maker->quote_char
- || q{"};
+
+ 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)
- || $self->schema->storage->sql_maker->name_sep
- || q{.};
+ return $self->dbh->get_info(41)
+ || $self->schema->storage->sql_maker->name_sep
+ || '.';
}
# Override this in vendor modules to do things at the end of ->new()
# Override this in vendor module to load a subclass if necessary
sub _rebless { }
-# Returns an array of table names
-sub _tables_list {
- my ($self, $opts) = (shift, shift);
+sub _system_schemas {
+ return ('information_schema');
+}
- my ($table, $type) = @_ ? @_ : ('%', '%');
+sub _system_tables {
+ return ();
+}
- my $dbh = $self->schema->storage->dbh;
- my @tables = $dbh->tables(undef, $self->db_schema, $table, $type);
+sub _dbh_tables {
+ my $self = shift;
+
+ return $self->dbh->tables(undef, @_);
+}
+
+# default to be overridden in subclasses if necessary
+sub _supports_db_schema { 1 }
+
+# Returns an array of table objects
+sub _tables_list {
+ my ($self) = @_;
+
+ 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 $qt = qr/[\Q$self->{_quoter}\E"'`\[\]]/;
+ my $table_name = $table_name1 || $table_name2;
- my $all_tables_quoted = (grep /$qt/, @tables) == @tables;
+ 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;
+ }
+ }
+
+ foreach my $system_table ($self->_system_tables) {
+ my $matches = 0;
+
+ if (ref $system_table) {
+ $matches = 1 if $table_name =~ $system_table;
+ }
+ else {
+ $matches = 1 if $table_name eq $system_table
+ }
+
+ next TABLE if $matches;
+ }
- if ($self->{_quoter} && $all_tables_quoted) {
- s/.* $qt (?= .* $qt\z)//xg for @tables;
- } else {
- s/^.*\Q$self->{_namesep}\E// for @tables;
+ $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
+ )),
+ );
+
+ push @tables, $table;
+ }
}
- s/$qt//g for @tables;
- return $self->_filter_tables(\@tables, $opts);
+ return $self->_filter_tables(\@tables);
+}
+
+sub _recurse_constraint {
+ my ($constraint, @parts) = @_;
+
+ my $name = shift @parts;
+
+ # If there are any parts left, the constraint must be an arrayref
+ croak "depth of constraint/exclude array does not match length of moniker_parts"
+ unless !!@parts == !!(ref $constraint eq 'ARRAY');
+
+ # if ths is the last part, use the constraint directly
+ return $name =~ $constraint unless @parts;
+
+ # recurse into the first matching subconstraint
+ foreach (@{$constraint}) {
+ my ($re, $sub) = @{$_};
+ return _recurse_constraint($sub, @parts)
+ if $name =~ $re;
+ }
+ return 0;
+}
+
+sub _check_constraint {
+ my ($include, $constraint, @tables) = @_;
+
+ return @tables unless defined $constraint;
+
+ return grep { !$include xor _recurse_constraint($constraint, @{$_}) } @tables
+ if ref $constraint eq 'ARRAY';
+
+ return grep { !$include xor /$constraint/ } @tables;
}
+
+
# apply constraint/exclude and ignore bad tables and views
sub _filter_tables {
- my ($self, $tables, $opts) = @_;
+ my ($self, $tables) = @_;
my @tables = @$tables;
my @filtered_tables;
- $opts ||= {};
- my $constraint = $opts->{constraint};
- my $exclude = $opts->{exclude};
+ @tables = _check_constraint(1, $self->constraint, @tables);
+ @tables = _check_constraint(0, $self->exclude, @tables);
- @tables = grep { /$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;
- $self->next::method(@_);
-}
-
-sub _table_as_sql {
- my ($self, $table) = @_;
-
- my $sql_maker = $self->schema->storage->sql_maker;
- my $name_sep = $sql_maker->name_sep;
- my $db_schema = $self->db_schema;
-
- if($db_schema) {
- return $self->_quote($self->{db_schema})
- . $name_sep
- . $self->_quote($table);
- }
+ local $self->dbh->{RaiseError} = 1;
+ local $self->dbh->{PrintError} = 0;
- return $self->_quote($table);
+ $self->next::method(@_);
}
sub _sth_for {
my ($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 $retval;
}
# Returns arrayref of pk col names
-sub _table_pk_info {
+sub _table_pk_info {
my ($self, $table) = @_;
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
next if $row->{TYPE} eq 'table'
|| defined $row->{FILTER_CONDITION}
|| !$row->{INDEX_NAME}
- || !defined $row->{ORDINAL_POSITION}
- || !$row->{COLUMN_NAME};
+ || !defined $row->{ORDINAL_POSITION};
- $indices{$row->{INDEX_NAME}}[$row->{ORDINAL_POSITION}] = $self->_lc($row->{COLUMN_NAME});
+ $indices{$row->{INDEX_NAME}}[$row->{ORDINAL_POSITION}] = $self->_lc($row->{COLUMN_NAME} || '');
}
$sth->finish;
my @retval;
- foreach my $index_name (keys %indices) {
- my $index = $indices{$index_name};
- push(@retval, [ $index_name => [ @$index[1..$#$index] ] ]);
+ foreach my $index_name (sort keys %indices) {
+ my (undef, @cols) = @{$indices{$index_name}};
+ # skip indexes with missing column names (e.g. expression indexes)
+ next unless @cols == grep $_, @cols;
+ push(@retval, [ $index_name => \@cols ]);
}
return \@retval;
}
+sub _table_comment {
+ my ($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) {
+ my $info = $self->_dbh_table_info( $dbh, $table );
+ $comment = $info->{REMARKS} if $info;
+ }
+
+ 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 @rules = (
+ 'CASCADE',
+ 'RESTRICT',
+ 'SET NULL',
+ 'NO ACTION',
+ 'SET DEFAULT',
+ );
+
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 $key_seq = $raw_rel->[8] - 1;
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;
+
+ my $update_rule = $raw_rel->[9];
+ my $delete_rule = $raw_rel->[10];
+
+ $update_rule = $rules[$update_rule] if defined $update_rule;
+ $delete_rule = $rules[$delete_rule] if defined $delete_rule;
+
+ my $is_deferrable = $raw_rel->[13];
+
+ ($is_deferrable = $is_deferrable == 7 ? 0 : 1)
+ if defined $is_deferrable;
+
+ 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}{attrs}{on_delete} = $delete_rule if $delete_rule;
+ $rels{$relid}{attrs}{on_update} = $update_rule if $update_rule;
+ $rels{$relid}{attrs}{is_deferrable} = $is_deferrable if defined $is_deferrable;
+
+ # Add this data IN ORDER
+ $rels{$relid}{rcols}[$key_seq] = $uk_col;
+ $rels{$relid}{lcols}[$key_seq] = $fk_col;
}
$sth->finish;
my @rels;
foreach my $relid (keys %rels) {
push(@rels, {
- remote_columns => [ keys %{$rels{$relid}->{cols}} ],
- local_columns => [ values %{$rels{$relid}->{cols}} ],
+ remote_columns => [ grep defined, @{ $rels{$relid}{rcols} } ],
+ local_columns => [ grep defined, @{ $rels{$relid}{lcols} } ],
remote_table => $rels{$relid}->{tbl},
+ (exists $rels{$relid}{attrs} ?
+ (attrs => $rels{$relid}{attrs})
+ :
+ ()
+ ),
+ _constraint_name => $relid,
});
}
my %result;
- if ($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;
}
}
+ # 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) } = $info;
+ }
+
+ %result = %lc_result;
+ }
+
return \%result;
}
sub _dbh_type_info_type_name {
my ($self, $type_num) = @_;
- my $dbh = $self->schema->storage->dbh;
+ # 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) };
- my $type_info = $dbh->type_info($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, $table) = (shift, shift, shift);
+
+ return undef if !$dbh->can('table_info');
+ my $sth = $dbh->table_info(undef, $table->schema, $table->name);
+ while (my $info = $sth->fetchrow_hashref) {
+ next if !$self->_table_info_matches($table, $info);
+ return $info;
+ }
+ return undef;
+}
+
+sub _table_info_matches {
+ my ($self, $table, $info) = @_;
+
+ no warnings 'uninitialized';
+ return $info->{TABLE_SCHEM} eq $table->schema
+ && $info->{TABLE_NAME} eq $table->name;
+}
+
# override to mask warnings if needed (see mysql)
sub _dbh_column_info {
my ($self, $dbh) = (shift, shift);
return ($dsn, $user, $pass, $params);
}
+sub dbh {
+ my $self = shift;
+
+ return $self->schema->storage->dbh;
+}
+
+sub _table_is_view {
+ my ($self, $table) = @_;
+
+ my $info = $self->_dbh_table_info($self->dbh, $table)
+ or return 0;
+ return $info->{TABLE_TYPE} eq 'VIEW';
+}
+
=head1 SEE ALSO
L<DBIx::Class::Schema::Loader>
-=head1 AUTHOR
+=head1 AUTHORS
-See L<DBIx::Class::Schema::Loader/AUTHOR> and L<DBIx::Class::Schema::Loader/CONTRIBUTORS>.
+See L<DBIx::Class::Schema::Loader/AUTHORS>.
=head1 LICENSE
projects / dbsrgits/DBIx-Class-Schema-Loader.git / blobdiff