X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FSchema%2FLoader%2FDBI%2FOracle.pm;h=dd10088b7aa8fafbf50690946756dad09084c57f;hb=306bf770bf08b06f92863808b1938f2fc704acb0;hp=c0565d8a184f2b1eea530ed523841778acb74726;hpb=83b38372e2c0578e0bf793638863984151f046bb;p=dbsrgits%2FDBIx-Class-Schema-Loader.git

diff --git a/lib/DBIx/Class/Schema/Loader/DBI/Oracle.pm b/lib/DBIx/Class/Schema/Loader/DBI/Oracle.pm
index c0565d8..dd10088 100644
--- a/lib/DBIx/Class/Schema/Loader/DBI/Oracle.pm
+++ b/lib/DBIx/Class/Schema/Loader/DBI/Oracle.pm
@@ -2,34 +2,22 @@ package DBIx::Class::Schema::Loader::DBI::Oracle;
 
 use strict;
 use warnings;
-use base qw/
-    DBIx::Class::Schema::Loader::DBI::Component::QuotedDefault
-    DBIx::Class::Schema::Loader::DBI
-/;
-use Carp::Clan qw/^DBIx::Class/;
-use Class::C3;
+use base 'DBIx::Class::Schema::Loader::DBI::Component::QuotedDefault';
+use mro 'c3';
+use Try::Tiny;
+use DBIx::Class::Schema::Loader::Utils qw/sigwarn_silencer/;
+use namespace::clean;
 
-our $VERSION = '0.05002';
+our $VERSION = '0.07047';
 
 =head1 NAME
 
-DBIx::Class::Schema::Loader::DBI::Oracle - DBIx::Class::Schema::Loader::DBI 
+DBIx::Class::Schema::Loader::DBI::Oracle - DBIx::Class::Schema::Loader::DBI
 Oracle Implementation.
 
-=head1 SYNOPSIS
-
-  package My::Schema;
-  use base qw/DBIx::Class::Schema::Loader/;
-
-  __PACKAGE__->loader_options( debug => 1 );
-
-  1;
-
 =head1 DESCRIPTION
 
-See L<DBIx::Class::Schema::Loader::Base>.
-
-This module is considered experimental and not well tested yet.
+See L<DBIx::Class::Schema::Loader> and L<DBIx::Class::Schema::Loader::Base>.
 
 =cut
 
@@ -38,117 +26,397 @@ sub _setup {
 
     $self->next::method(@_);
 
-    my $dbh = $self->schema->storage->dbh;
+    my ($current_schema) = $self->dbh->selectrow_array('SELECT USER FROM DUAL');
 
-    my ($current_schema) = $dbh->selectrow_array('SELECT USER FROM DUAL', {});
+    $self->db_schema([ $current_schema ]) unless $self->db_schema;
 
-    $self->{db_schema} ||= $current_schema;
+    if (@{ $self->db_schema } == 1 && $self->db_schema->[0] ne '%'
+        && lc($self->db_schema->[0]) ne lc($current_schema)) {
+        $self->dbh->do('ALTER SESSION SET current_schema=' . $self->db_schema->[0]);
+    }
 
-    if (lc($self->db_schema) ne lc($current_schema)) {
-        $dbh->do('ALTER SESSION SET current_schema=' . $self->db_schema);
+    if (not defined $self->preserve_case) {
+        $self->preserve_case(0);
+    }
+    elsif ($self->preserve_case) {
+        $self->schema->storage->sql_maker->quote_char('"');
+        $self->schema->storage->sql_maker->name_sep('.');
     }
 }
 
-sub _table_as_sql {
-    my ($self, $table) = @_;
+sub _build_name_sep { '.' }
+
+sub _system_schemas {
+    my $self = shift;
+
+    # From http://www.adp-gmbh.ch/ora/misc/known_schemas.html
+
+    return ($self->next::method(@_), qw/ANONYMOUS APEX_PUBLIC_USER APEX_030200 APPQOSSYS CTXSYS DBSNMP DIP DMSYS EXFSYS LBACSYS MDDATA MDSYS MGMT_VIEW OLAPSYS ORACLE_OCM ORDDATA ORDPLUGINS ORDSYS OUTLN SI_INFORMTN_SCHEMA SPATIAL_CSW_ADMIN_USR SPATIAL_WFS_ADMIN_USR SYS SYSMAN SYSTEM TRACESRV MTSSYS OASPUBLIC OWBSYS OWBSYS_AUDIT WEBSYS WK_PROXY WKSYS WK_TEST WMSYS XDB OSE$HTTP$ADMIN AURORA$JIS$UTILITY$ AURORA$ORB$UNAUTHENTICATED/, qr/^FLOWS_\d\d\d\d\d\d\z/);
+}
+
+sub _system_tables {
+    my $self = shift;
 
-    return $self->_quote_table_name($table);
+    return ($self->next::method(@_), 'PLAN_TABLE');
 }
 
-sub _tables_list { 
+sub _dbh_tables {
+    my ($self, $schema) = @_;
+
+    return $self->dbh->tables(undef, $schema, '%', 'TABLE,VIEW');
+}
+
+sub _filter_tables {
     my $self = shift;
 
-    my $dbh = $self->schema->storage->dbh;
+    # silence a warning from older DBD::Oracles in tests
+    local $SIG{__WARN__} = sigwarn_silencer(
+        qr/^Field \d+ has an Oracle type \(\d+\) which is not explicitly supported/
+    );
+
+    return $self->next::method(@_);
+}
+
+sub _table_fk_info {
+    my $self = shift;
+    my ($table) = @_;
 
-    my @tables;
-    for my $table ( $dbh->tables(undef, $self->db_schema, '%', 'TABLE,VIEW') ) { #catalog, schema, table, type
-        my $quoter = $dbh->get_info(29);
-        $table =~ s/$quoter//g;
+    my $rels = $self->next::method(@_);
 
-        # remove "user." (schema) prefixes
-        $table =~ s/\w+\.//;
+    my $deferrable_sth = $self->dbh->prepare_cached(<<'EOF');
+select deferrable from all_constraints
+where owner = ? and table_name = ? and constraint_name = ? and status = 'ENABLED'
+EOF
 
-        next if $table eq 'PLAN_TABLE';
-        $table = lc $table;
-        push @tables, $1
-          if $table =~ /\A(\w+)\z/;
+    my @enabled_rels;
+    foreach my $rel (@$rels) {
+        # Oracle does not have update rules
+        $rel->{attrs}{on_update} = 'NO ACTION';;
+
+        # DBD::Oracle's foreign_key_info does not return DEFERRABILITY, so we get it ourselves
+        # Also use this to filter out disabled foreign keys, which are returned by DBD::Oracle < 1.76
+        my $deferrable = $self->dbh->selectrow_array(
+            $deferrable_sth, undef, $table->schema, $table->name, $rel->{_constraint_name}
+        ) or next;
+
+        $rel->{attrs}{is_deferrable} = $deferrable =~ /^DEFERRABLE/i ? 1 : 0;
+        push @enabled_rels, $rel;
     }
-    return $self->_filter_tables(@tables);
+
+    return \@enabled_rels;
 }
 
 sub _table_uniq_info {
     my ($self, $table) = @_;
 
-    my $dbh = $self->schema->storage->dbh;
+    my $sth = $self->dbh->prepare_cached(<<'EOF', {}, 1);
+SELECT ac.constraint_name, acc.column_name
+FROM all_constraints ac, all_cons_columns acc
+WHERE acc.table_name=? AND acc.owner = ?
+    AND ac.table_name = acc.table_name AND ac.owner = acc.owner
+    AND acc.constraint_name = ac.constraint_name
+    AND ac.constraint_type = 'U'
+    AND ac.status = 'ENABLED'
+ORDER BY acc.position
+EOF
 
-    my $sth = $dbh->prepare_cached(
-        q{
-            SELECT constraint_name, acc.column_name
-            FROM all_constraints JOIN all_cons_columns acc USING (constraint_name)
-            WHERE acc.table_name=? and acc.owner = ? AND constraint_type='U'
-            ORDER BY acc.position
-        },
-        {}, 1);
+    $sth->execute($table->name, $table->schema);
 
-    $sth->execute(uc $table,$self->{db_schema} );
     my %constr_names;
+
     while(my $constr = $sth->fetchrow_arrayref) {
-        my $constr_name = lc $constr->[0];
-        my $constr_def  = lc $constr->[1];
-        $constr_name =~ s/\Q$self->{_quoter}\E//;
-        $constr_def =~ s/\Q$self->{_quoter}\E//;
-        push @{$constr_names{$constr_name}}, $constr_def;
+        my $constr_name = $self->_lc($constr->[0]);
+        my $constr_col  = $self->_lc($constr->[1]);
+        push @{$constr_names{$constr_name}}, $constr_col;
     }
-    
-    my @uniqs = map { [ $_ => $constr_names{$_} ] } keys %constr_names;
-    return \@uniqs;
+
+    return [ map { [ $_ => $constr_names{$_} ] } sort keys %constr_names ];
 }
 
-sub _table_pk_info {
-    my ($self, $table) = @_;
-    return $self->next::method(uc $table);
+sub _table_comment {
+    my $self = shift;
+    my ($table) = @_;
+
+    my $table_comment = $self->next::method(@_);
+
+    return $table_comment if $table_comment;
+
+    ($table_comment) = $self->dbh->selectrow_array(<<'EOF', {}, $table->schema, $table->name);
+SELECT comments FROM all_tab_comments
+WHERE owner = ?
+  AND table_name = ?
+  AND (table_type = 'TABLE' OR table_type = 'VIEW')
+EOF
+
+    return $table_comment
 }
 
-sub _table_fk_info {
-    my ($self, $table) = @_;
+sub _column_comment {
+    my $self = shift;
+    my ($table, $column_number, $column_name) = @_;
 
-    my $rels = $self->next::method(uc $table);
+    my $column_comment = $self->next::method(@_);
 
-    foreach my $rel (@$rels) {
-        $rel->{remote_table} = lc $rel->{remote_table};
-    }
+    return $column_comment if $column_comment;
 
-    return $rels;
+    ($column_comment) = $self->dbh->selectrow_array(<<'EOF', {}, $table->schema, $table->name, $self->_uc($column_name));
+SELECT comments FROM all_col_comments
+WHERE owner = ?
+  AND table_name = ?
+  AND column_name = ?
+EOF
+
+    return $column_comment
 }
 
 sub _columns_info_for {
-    my ($self, $table) = @_;
-    return $self->next::method(uc $table);
-}
+    my $self = shift;
+    my ($table) = @_;
+
+    my $result = $self->next::method(@_);
 
-sub _extra_column_info {
-    my ($self, $info) = @_;
-    my %extra_info;
-
-    my ($table, $column) = @$info{qw/TABLE_NAME COLUMN_NAME/};
-
-    my $dbh = $self->schema->storage->dbh;
-    my $sth = $dbh->prepare_cached(
-        q{
-            SELECT COUNT(*)
-            FROM all_triggers ut JOIN all_trigger_cols atc USING (trigger_name)
-            WHERE atc.table_name = ? AND atc.column_name = ?
-            AND column_usage LIKE '%NEW%' AND column_usage LIKE '%OUT%'
-            AND trigger_type = 'BEFORE EACH ROW' AND triggering_event LIKE '%INSERT%'
-        },
-        {}, 1);
-
-    $sth->execute($table, $column);
-    if ($sth->fetchrow_array) {
-        $extra_info{is_auto_increment} = 1;
+    local $self->dbh->{LongReadLen} = 1_000_000;
+    local $self->dbh->{LongTruncOk} = 1;
+
+    my $sth = $self->dbh->prepare_cached(<<'EOF', {}, 1);
+SELECT trigger_body
+FROM all_triggers
+WHERE table_name = ? AND table_owner = ? AND status = 'ENABLED'
+AND upper(trigger_type) LIKE '%BEFORE EACH ROW%' AND lower(triggering_event) LIKE '%insert%'
+EOF
+
+    $sth->execute($table->name, $table->schema);
+
+    while (my ($trigger_body) = $sth->fetchrow_array) {
+        if (my ($seq_schema, $seq_name) = $trigger_body =~ /(?:"?(\w+)"?\.)?"?(\w+)"?\.nextval/i) {
+            if (my ($col_name) = $trigger_body =~ /:new\.(\w+)/i) {
+                $col_name = $self->_lc($col_name);
+
+                $result->{$col_name}{is_auto_increment} = 1;
+
+                $seq_schema = $self->_lc($seq_schema || $table->schema);
+                $seq_name   = $self->_lc($seq_name);
+
+                $result->{$col_name}{sequence} = ($self->qualify_objects ? ($seq_schema . '.') : '') . $seq_name;
+            }
+        }
+    }
+
+    # Old DBD::Oracle report the size in (UTF-16) bytes, not characters
+    my $nchar_size_factor = $DBD::Oracle::VERSION >= 1.52 ? 1 : 2;
+
+    while (my ($col, $info) = each %$result) {
+        no warnings 'uninitialized';
+
+        my $sth = $self->dbh->prepare_cached(<<'EOF', {}, 1);
+SELECT data_type, data_length
+FROM all_tab_columns
+WHERE column_name = ? AND table_name = ? AND owner = ?
+EOF
+        $sth->execute($self->_uc($col), $table->name, $table->schema);
+        my ($data_type, $data_length) = $sth->fetchrow_array;
+        $sth->finish;
+        $data_type = lc $data_type;
+
+        if ($data_type =~ /^(?:n(?:var)?char2?|u?rowid|nclob|timestamp\(\d+\)(?: with(?: local)? time zone)?|binary_(?:float|double))\z/i) {
+            $info->{data_type} = $data_type;
+
+            if ($data_type =~ /^u?rowid\z/i) {
+                $info->{size} = $data_length;
+            }
+        }
+
+        if ($info->{data_type} =~ /^(?:n?[cb]lob|long(?: raw)?|bfile|date|binary_(?:float|double)|rowid)\z/i) {
+            delete $info->{size};
+        }
+
+        if ($info->{data_type} =~ /^n(?:var)?char2?\z/i) {
+            if (ref $info->{size}) {
+                $info->{size} = $info->{size}[0] / 8;
+            }
+            else {
+                $info->{size} = $info->{size} / $nchar_size_factor;
+            }
+        }
+        elsif ($info->{data_type} =~ /^(?:var)?char2?\z/i) {
+            if (ref $info->{size}) {
+                $info->{size} = $info->{size}[0];
+            }
+        }
+        elsif (lc($info->{data_type}) =~ /^(?:number|decimal)\z/i) {
+            $info->{original}{data_type} = 'number';
+            $info->{data_type}           = 'numeric';
+
+            if (try { $info->{size}[0] == 38 && $info->{size}[1] == 0 }) {
+                $info->{original}{size} = $info->{size};
+
+                $info->{data_type} = 'integer';
+                delete $info->{size};
+            }
+        }
+        elsif (my ($precision) = $info->{data_type} =~ /^timestamp\((\d+)\)(?: with (?:local )?time zone)?\z/i) {
+            $info->{data_type} = join ' ', $info->{data_type} =~ /[a-z]+/ig;
+
+            if ($precision == 6) {
+                delete $info->{size};
+            }
+            else {
+                $info->{size} = $precision;
+            }
+        }
+        elsif ($info->{data_type} =~ /timestamp/i && ref $info->{size} && $info->{size}[0] == 0) {
+            my $size = $info->{size}[1];
+            delete $info->{size};
+            $info->{size} = $size unless $size == 6;
+        }
+        elsif (($precision) = $info->{data_type} =~ /^interval year\((\d+)\) to month\z/i) {
+            $info->{data_type} = join ' ', $info->{data_type} =~ /[a-z]+/ig;
+
+            if ($precision == 2) {
+                delete $info->{size};
+            }
+            else {
+                $info->{size} = $precision;
+            }
+        }
+        elsif (my ($day_precision, $second_precision) = $info->{data_type} =~ /^interval day\((\d+)\) to second\((\d+)\)\z/i) {
+            $info->{data_type} = join ' ', $info->{data_type} =~ /[a-z]+/ig;
+
+            if ($day_precision == 2 && $second_precision == 6) {
+                delete $info->{size};
+            }
+            else {
+                $info->{size} = [ $day_precision, $second_precision ];
+            }
+        }
+        elsif ($info->{data_type} =~ /^interval year to month\z/i && ref $info->{size}) {
+            my $precision = $info->{size}[0];
+
+            if ($precision == 2) {
+                delete $info->{size};
+            }
+            else {
+                $info->{size} = $precision;
+            }
+        }
+        elsif ($info->{data_type} =~ /^interval day to second\z/i && ref $info->{size}) {
+            if ($info->{size}[0] == 2 && $info->{size}[1] == 6) {
+                delete $info->{size};
+            }
+        }
+        elsif (lc($info->{data_type}) eq 'float') {
+            $info->{original}{data_type} = 'float';
+            $info->{original}{size}      = $info->{size};
+
+            if ($info->{size} <= 63) {
+                $info->{data_type} = 'real';
+            }
+            else {
+                $info->{data_type} = 'double precision';
+            }
+            delete $info->{size};
+        }
+        elsif (lc($info->{data_type}) eq 'double precision') {
+            $info->{original}{data_type} = 'float';
+
+            my $size = try { $info->{size}[0] };
+
+            $info->{original}{size} = $size;
+
+            if ($size <= 63) {
+                $info->{data_type} = 'real';
+            }
+            delete $info->{size};
+        }
+        elsif (lc($info->{data_type}) eq 'urowid' && $info->{size} == 4000) {
+            delete $info->{size};
+        }
+        elsif ($info->{data_type} eq '-9104') {
+            $info->{data_type} = 'rowid';
+            delete $info->{size};
+        }
+        elsif ($info->{data_type} eq '-2') {
+            $info->{data_type} = 'raw';
+            $info->{size} = try { $info->{size}[0] / 2 };
+        }
+        elsif (lc($info->{data_type}) eq 'date') {
+            $info->{data_type}           = 'datetime';
+            $info->{original}{data_type} = 'date';
+        }
+        elsif (lc($info->{data_type}) eq 'binary_float') {
+            $info->{data_type}           = 'real';
+            $info->{original}{data_type} = 'binary_float';
+        }
+        elsif (lc($info->{data_type}) eq 'binary_double') {
+            $info->{data_type}           = 'double precision';
+            $info->{original}{data_type} = 'binary_double';
+        }
+
+        # DEFAULT could be missed by ::DBI because of ORA-24345
+        if (not defined $info->{default_value}) {
+            local $self->dbh->{LongReadLen} = 1_000_000;
+            local $self->dbh->{LongTruncOk} = 1;
+            my $sth = $self->dbh->prepare_cached(<<'EOF', {}, 1);
+SELECT data_default
+FROM all_tab_columns
+WHERE column_name = ? AND table_name = ? AND owner = ?
+EOF
+            $sth->execute($self->_uc($col), $table->name, $table->schema);
+            my ($default) = $sth->fetchrow_array;
+            $sth->finish;
+
+            # this is mostly copied from ::DBI::QuotedDefault
+            if (defined $default) {
+                s/^\s+//, s/\s+\z// for $default;
+
+                if ($default =~ /^'(.*?)'\z/) {
+                    $info->{default_value} = $1;
+                }
+                elsif ($default =~ /^(-?\d.*?)\z/) {
+                    $info->{default_value} = $1;
+                }
+                elsif ($default =~ /^NULL\z/i) {
+                    my $null = 'null';
+                    $info->{default_value} = \$null;
+                }
+                elsif ($default ne '') {
+                    my $val = $default;
+                    $info->{default_value} = \$val;
+                }
+            }
+        }
+
+        if ((try { lc(${ $info->{default_value} }) }||'') eq 'sysdate') {
+            my $current_timestamp  = 'current_timestamp';
+            $info->{default_value} = \$current_timestamp;
+
+            my $sysdate = 'sysdate';
+            $info->{original}{default_value} = \$sysdate;
+        }
     }
 
-    return \%extra_info;
+    return $result;
+}
+
+sub _dbh_column_info {
+    my $self  = shift;
+    my ($dbh) = @_;
+
+    # try to avoid ORA-24345
+    local $dbh->{LongReadLen} = 1_000_000;
+    local $dbh->{LongTruncOk} = 1;
+
+    return $self->next::method(@_);
+}
+
+sub _view_definition {
+    my ($self, $view) = @_;
+
+    return scalar $self->schema->storage->dbh->selectrow_array(<<'EOF', {}, $view->schema, $view->name);
+SELECT text
+FROM all_views
+WHERE owner = ? AND view_name = ?
+EOF
 }
 
 =head1 SEE ALSO
@@ -156,9 +424,9 @@ sub _extra_column_info {
 L<DBIx::Class::Schema::Loader>, L<DBIx::Class::Schema::Loader::Base>,
 L<DBIx::Class::Schema::Loader::DBI>
 
-=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
 
@@ -168,3 +436,4 @@ the same terms as Perl itself.
 =cut
 
 1;
+# vim:et sts=4 sw=4 tw=0: