WHENEVER WHERE WITH
);
+#
+# Oracle 8/9 max size of data types from:
+# http://www.ss64.com/orasyntax/datatypes.html
+#
+my %max_size = (
+ char => 2000,
+ nchar => 2000,
+ nvarchar2 => 4000,
+ number => [ 38, 127 ],
+ raw => 2000,
+ varchar => 4000, # only synonym for varchar2
+ varchar2 => 4000,
+);
+
my $max_id_length = 30;
my %used_identifiers = ();
my %global_names;
push @view_defs, create_view($view);
}
- return wantarray ? (defined $create ? $create : (), @table_defs, @view_defs, @fk_defs, @trigger_defs, @index_defs, @constraint_defs) : $create . join ("\n\n", @table_defs, @view_defs, @fk_defs, @trigger_defs, @index_defs, @constraint_defs, '');
+ return wantarray ? (defined $create ? $create : (), @table_defs, @view_defs, @fk_defs, @trigger_defs, @index_defs, @constraint_defs) : $create . join ('', map { $_ ? "$_;\n\n" : () } @table_defs, @view_defs, @fk_defs, @trigger_defs, @index_defs, @constraint_defs);
}
sub create_table {
my $drop;
my (@create, @field_defs, @constraint_defs, @fk_defs, @trigger_defs);
- push @create, "--\n-- Table: $table_name\n--" unless $options->{no_comments};
- push @create, qq[DROP TABLE $table_name CASCADE CONSTRAINTS;] if $options->{add_drop_table};
-
my $table_name_ur = unreserve($table_name) or next;
+ push @create, "--\n-- Table: $table_name_ur\n--" unless $options->{no_comments};
+ push @create, qq[DROP TABLE $table_name_ur CASCADE CONSTRAINTS] if $options->{add_drop_table};
+
my ( %field_name_scope, @field_comments );
for my $field ( $table->get_fields ) {
- #
- # Field name
- #
- my $field_name = mk_name(
- $field->name, '', \%field_name_scope, 1
- );
- my $field_name_ur = unreserve( $field_name, $table_name );
- my $field_def = $field_name_ur;
- $field->name( $field_name_ur );
-
- #
- # Datatype
- #
- my $check;
- my $data_type = lc $field->data_type;
- my @size = $field->size;
- my %extra = $field->extra;
- my $list = $extra{'list'} || [];
- # \todo deal with embedded quotes
- my $commalist = join( ', ', map { qq['$_'] } @$list );
-
- if ( $data_type eq 'enum' ) {
- $check = "CHECK ($field_name_ur IN ($commalist))";
- $data_type = 'varchar2';
- }
- elsif ( $data_type eq 'set' ) {
- # XXX add a CHECK constraint maybe
- # (trickier and slower, than enum :)
- $data_type = 'varchar2';
- }
- else {
- $data_type = defined $translate{ $data_type } ?
- $translate{ $data_type } :
- $data_type;
- $data_type ||= 'varchar2';
- }
-
- #
- # Fixes ORA-02329: column of datatype LOB cannot be
- # unique or a primary key
- #
- if ( $data_type eq 'clob' && $field->is_primary_key ) {
- $data_type = 'varchar2';
- $size[0] = 4000;
- warn "CLOB cannot be a primary key, changing to VARCHAR2\n"
- if $WARN;
- }
-
- if ( $data_type eq 'clob' && $field->is_unique ) {
- $data_type = 'varchar2';
- $size[0] = 4000;
- warn "CLOB cannot be a unique key, changing to VARCHAR2\n"
- if $WARN;
- }
-
- #
- # Fixes ORA-00907: missing right parenthesis
- #
- if ( $data_type =~ /(date|clob)/i ) {
- undef @size;
- }
-
- $field_def .= " $data_type";
- if ( defined $size[0] && $size[0] > 0 ) {
- $field_def .= '(' . join( ', ', @size ) . ')';
- }
-
- #
- # Default value
- #
- my $default = $field->default_value;
- if ( defined $default ) {
- #
- # Wherein we try to catch a string being used as
- # a default value for a numerical field. If "true/false,"
- # then sub "1/0," otherwise just test the truthity of the
- # argument and use that (naive?).
- #
- if (
- $data_type =~ /^number$/i &&
- $default !~ /^-?\d+$/ &&
- $default !~ m/null/i
- ) {
- if ( $default =~ /^true$/i ) {
- $default = "'1'";
- }
- elsif ( $default =~ /^false$/i ) {
- $default = "'0'";
- }
- else {
- $default = $default ? "'1'" : "'0'";
- }
- }
- elsif (
- $data_type =~ /date/ && (
- $default eq 'current_timestamp'
- ||
- $default eq 'now()'
- )
- ) {
- $default = 'SYSDATE';
- }
- else {
- $default = $default =~ m/null/i ? 'NULL' : "'$default'"
- }
-
- $field_def .= " DEFAULT $default",
- }
-
- #
- # Not null constraint
- #
- unless ( $field->is_nullable ) {
- $field_def .= ' NOT NULL';
- }
-
- $field_def .= " $check" if $check;
-
- #
- # Auto_increment
- #
- if ( $field->is_auto_increment ) {
- my $base_name = $table_name_ur . "_". $field_name;
- my $seq_name = mk_name( $base_name, 'sq' );
- my $trigger_name = mk_name( $base_name, 'ai' );
-
- push @create, qq[DROP SEQUENCE $seq_name;] if $options->{add_drop_table};
- push @create, "CREATE SEQUENCE $seq_name;";
- push @trigger_defs,
- "CREATE OR REPLACE TRIGGER $trigger_name\n" .
- "BEFORE INSERT ON $table_name_ur\n" .
- "FOR EACH ROW WHEN (\n" .
- " new.$field_name_ur IS NULL".
- " OR new.$field_name_ur = 0\n".
- ")\n".
- "BEGIN\n" .
- " SELECT $seq_name.nextval\n" .
- " INTO :new." . $field->name."\n" .
- " FROM dual;\n" .
- "END;\n/";
- ;
- }
-
- if ( lc $field->data_type eq 'timestamp' ) {
- my $base_name = $table_name_ur . "_". $field_name_ur;
- my $trig_name = mk_name( $base_name, 'ts' );
- push @trigger_defs,
- "CREATE OR REPLACE TRIGGER $trig_name\n".
- "BEFORE INSERT OR UPDATE ON $table_name_ur\n".
- "FOR EACH ROW WHEN (new.$field_name_ur IS NULL)\n".
- "BEGIN \n".
- " SELECT sysdate INTO :new.$field_name_ur FROM dual;\n".
- "END;\n/";
- }
-
- push @field_defs, $field_def;
-
- if ( my $comment = $field->comments ) {
- $comment =~ s/'/''/g;
- push @field_comments,
- "COMMENT ON COLUMN $table_name_ur.$field_name_ur is\n '" .
- $comment . "';" unless $options->{no_comments};
- }
+ my ($field_create, $field_defs, $trigger_defs, $field_comments) =
+ create_field($field, $options, \%field_name_scope);
+ push @create, @$field_create if ref $field_create;
+ push @field_defs, @$field_defs if ref $field_defs;
+ push @trigger_defs, @$trigger_defs if ref $trigger_defs;
+ push @field_comments, @$field_comments if ref $field_comments;
}
#
next if !@fields && $c->type ne CHECK_C;
if ( $c->type eq PRIMARY_KEY ) {
- #$name ||= mk_name( $table_name, 'pk' );
+ # create a name if delay_constraints
+ $name ||= mk_name( $table_name, 'pk' )
+ if $options->{delay_constraints};
push @constraint_defs, ($name ? "CONSTRAINT $name " : '') .
'PRIMARY KEY (' . join( ', ', @fields ) . ')';
}
push @constraint_defs, "CONSTRAINT $name CHECK ($expression)";
}
elsif ( $c->type eq FOREIGN_KEY ) {
- $name = mk_name( join('_', $table_name, $c->fields). '_fk' );
+ $name = mk_name( join('_', $table_name, $c->fields). '_fk' );
my $def = "CONSTRAINT $name FOREIGN KEY ";
if ( @fields ) {
$def .= ' ON DELETE '.join( ' ', $c->on_delete );
}
- # disabled by plu 2007-12-29 - doesn't exist for oracle
- #if ( $c->on_update ) {
- # $def .= ' ON UPDATE '.join( ' ', $c->on_update );
- #}
+ # disabled by plu 2007-12-29 - doesn't exist for oracle
+ #if ( $c->on_update ) {
+ # $def .= ' ON UPDATE '.join( ' ', $c->on_update );
+ #}
- push @fk_defs, sprintf("ALTER TABLE %s ADD %s;", $table, $def);
+ push @fk_defs, sprintf("ALTER TABLE %s ADD %s", $table_name_ur, $def);
}
}
push @index_defs,
"CREATE INDEX $index_name on $table_name_ur (".
join( ', ', @fields ).
- ")$index_options;";
+ ")$index_options";
}
elsif ( $index_type eq UNIQUE ) {
$index_name = $index_name ? mk_name( $index_name )
push @index_defs,
"CREATE UNIQUE INDEX $index_name on $table_name_ur (".
join( ', ', @fields ).
- ")$index_options;";
+ ")$index_options";
}
else {
warn "Unknown index type ($index_type) on table $table_name.\n"
next unless $comment;
$comment =~ s/'/''/g;
push @field_comments, "COMMENT ON TABLE $table_name_ur is\n '".
- $comment . "';" unless $options->{no_comments}
+ $comment . "'" unless $options->{no_comments}
;
}
}
push @create, "CREATE TABLE $table_name_ur (\n" .
join( ",\n", map { " $_" } @field_defs,
($options->{delay_constraints} ? () : @constraint_defs) ) .
- "\n)$table_options;";
+ "\n)$table_options";
@constraint_defs = map { 'ALTER TABLE '.$table_name_ur.' ADD '.$_ }
@constraint_defs;
return \@create, \@fk_defs, \@trigger_defs, \@index_defs, ($options->{delay_constraints} ? \@constraint_defs : []);
}
+sub alter_field {
+ my ($from_field, $to_field, $options) = @_;
+
+ my ($field_create, $field_defs, $trigger_defs, $field_comments) =
+ create_field($to_field, $options, {});
+
+ # Fix ORA-01442
+ if ($to_field->is_nullable && !$from_field->is_nullable) {
+ die 'Cannot remove NOT NULL from table field';
+ } elsif (!$from_field->is_nullable && !$to_field->is_nullable) {
+ @$field_defs = map { s/ NOT NULL//; $_} @$field_defs;
+ }
+
+ my $table_name = $to_field->table->name;
+ my $table_name_ur = unreserve( $table_name );
+
+ return 'ALTER TABLE '.$table_name_ur.' MODIFY ( '.join('', @$field_defs).' )';
+}
+
+sub add_field {
+ my ($new_field, $options) = @_;
+
+ my ($field_create, $field_defs, $trigger_defs, $field_comments) =
+ create_field($new_field, $options, {});
+
+ my $table_name = $new_field->table->name;
+ my $table_name_ur = unreserve( $table_name );
+
+ my $out = sprintf('ALTER TABLE %s ADD ( %s )',
+ $table_name_ur,
+ join('', @$field_defs));
+ return $out;
+}
+
+sub create_field {
+ my ($field, $options, $field_name_scope) = @_;
+
+ my (@create, @field_defs, @trigger_defs, @field_comments);
+
+ my $table_name = $field->table->name;
+ my $table_name_ur = unreserve( $table_name );
+
+ #
+ # Field name
+ #
+ my $field_name = mk_name(
+ $field->name, '', $field_name_scope, 1
+ );
+
+ my $field_name_ur = unreserve( $field_name, $table_name );
+ my $field_def = $field_name_ur;
+ $field->name( $field_name_ur );
+
+ #
+ # Datatype
+ #
+ my $check;
+ my $data_type = lc $field->data_type;
+ my @size = $field->size;
+ my %extra = $field->extra;
+ my $list = $extra{'list'} || [];
+ # \todo deal with embedded quotes
+ my $commalist = join( ', ', map { qq['$_'] } @$list );
+
+ if ( $data_type eq 'enum' ) {
+ $check = "CHECK ($field_name_ur IN ($commalist))";
+ $data_type = 'varchar2';
+ }
+ elsif ( $data_type eq 'set' ) {
+ # XXX add a CHECK constraint maybe
+ # (trickier and slower, than enum :)
+ $data_type = 'varchar2';
+ }
+ else {
+ $data_type = defined $translate{ $data_type } ?
+ $translate{ $data_type } :
+ $data_type;
+ $data_type ||= 'varchar2';
+ }
+
+ # ensure size is not bigger than max size oracle allows for data type
+ if ( defined $max_size{$data_type} ) {
+ for ( my $i = 0 ; $i < scalar @size ; $i++ ) {
+ my $max =
+ ref( $max_size{$data_type} ) eq 'ARRAY'
+ ? $max_size{$data_type}->[$i]
+ : $max_size{$data_type};
+ $size[$i] = $max if $size[$i] > $max;
+ }
+ }
+
+ #
+ # Fixes ORA-02329: column of datatype LOB cannot be
+ # unique or a primary key
+ #
+ if ( $data_type eq 'clob' && $field->is_primary_key ) {
+ $data_type = 'varchar2';
+ $size[0] = 4000;
+ warn "CLOB cannot be a primary key, changing to VARCHAR2\n"
+ if $WARN;
+ }
+
+ if ( $data_type eq 'clob' && $field->is_unique ) {
+ $data_type = 'varchar2';
+ $size[0] = 4000;
+ warn "CLOB cannot be a unique key, changing to VARCHAR2\n"
+ if $WARN;
+ }
+
+ #
+ # Fixes ORA-00907: missing right parenthesis
+ #
+ if ( $data_type =~ /(date|clob)/i ) {
+ undef @size;
+ }
+
+ $field_def .= " $data_type";
+ if ( defined $size[0] && $size[0] > 0 ) {
+ $field_def .= '(' . join( ', ', @size ) . ')';
+ }
+
+ #
+ # Default value
+ #
+ my $default = $field->default_value;
+ if ( defined $default ) {
+ #
+ # Wherein we try to catch a string being used as
+ # a default value for a numerical field. If "true/false,"
+ # then sub "1/0," otherwise just test the truthity of the
+ # argument and use that (naive?).
+ #
+ if (ref $default and defined $$default) {
+ $default = $$default;
+ } elsif (ref $default) {
+ $default = 'NULL';
+ } elsif (
+ $data_type =~ /^number$/i &&
+ $default !~ /^-?\d+$/ &&
+ $default !~ m/null/i
+ ) {
+ if ( $default =~ /^true$/i ) {
+ $default = "'1'";
+ } elsif ( $default =~ /^false$/i ) {
+ $default = "'0'";
+ } else {
+ $default = $default ? "'1'" : "'0'";
+ }
+ } elsif (
+ $data_type =~ /date/ && (
+ $default eq 'current_timestamp'
+ ||
+ $default eq 'now()'
+ )
+ ) {
+ $default = 'SYSDATE';
+ } else {
+ $default = $default =~ m/null/i ? 'NULL' : "'$default'"
+ }
+
+ $field_def .= " DEFAULT $default",
+ }
+
+ #
+ # Not null constraint
+ #
+ unless ( $field->is_nullable ) {
+ $field_def .= ' NOT NULL';
+ }
+
+ $field_def .= " $check" if $check;
+
+ #
+ # Auto_increment
+ #
+ if ( $field->is_auto_increment ) {
+ my $base_name = $table_name_ur . "_". $field_name;
+ my $seq_name = mk_name( $base_name, 'sq' );
+ my $trigger_name = mk_name( $base_name, 'ai' );
+
+ push @create, qq[DROP SEQUENCE $seq_name] if $options->{add_drop_table};
+ push @create, "CREATE SEQUENCE $seq_name";
+ push @trigger_defs,
+ "CREATE OR REPLACE TRIGGER $trigger_name\n" .
+ "BEFORE INSERT ON $table_name_ur\n" .
+ "FOR EACH ROW WHEN (\n" .
+ " new.$field_name_ur IS NULL".
+ " OR new.$field_name_ur = 0\n".
+ ")\n".
+ "BEGIN\n" .
+ " SELECT $seq_name.nextval\n" .
+ " INTO :new." . $field->name."\n" .
+ " FROM dual;\n" .
+ "END;\n/";
+ ;
+ }
+
+ if ( lc $field->data_type eq 'timestamp' ) {
+ my $base_name = $table_name_ur . "_". $field_name_ur;
+ my $trig_name = mk_name( $base_name, 'ts' );
+ push @trigger_defs,
+ "CREATE OR REPLACE TRIGGER $trig_name\n".
+ "BEFORE INSERT OR UPDATE ON $table_name_ur\n".
+ "FOR EACH ROW WHEN (new.$field_name_ur IS NULL)\n".
+ "BEGIN \n".
+ " SELECT sysdate INTO :new.$field_name_ur FROM dual;\n".
+ "END;\n/";
+ }
+
+ push @field_defs, $field_def;
+
+ if ( my $comment = $field->comments ) {
+ $comment =~ s/'/''/g;
+ push @field_comments,
+ "COMMENT ON COLUMN $table_name_ur.$field_name_ur is\n '" .
+ $comment . "';" unless $options->{no_comments};
+ }
+
+ return \@create, \@field_defs, \@trigger_defs, \@field_comments;
+
+}
+
+
sub create_view {
my ($view) = @_;