--- /dev/null
+package SQL::Translator::Producer::Sybase;
+
+# -------------------------------------------------------------------
+# $Id: Sybase.pm,v 1.1 2003-05-12 14:29:51 angiuoli Exp $
+# -------------------------------------------------------------------
+# Copyright (C) 2003 Ken Y. Clark <kclark@cpan.org>,
+# darren chamberlain <darren@cpan.org>,
+# Chris Mungall <cjm@fruitfly.org>
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; version 2.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+# 02111-1307 USA
+# -------------------------------------------------------------------
+
+=head1 NAME
+
+SQL::Translator::Producer::Sybase - Sybase producer for SQL::Translator
+
+=cut
+
+use strict;
+use vars qw[ $DEBUG $WARN $VERSION ];
+$VERSION = sprintf "%d.%02d", q$Revision: 1.1 $ =~ /(\d+)\.(\d+)/;
+$DEBUG = 1 unless defined $DEBUG;
+
+use Data::Dumper;
+
+my %translate = (
+ #
+ # Sybase types
+ #
+ integer => 'numeric',
+ money => 'money',
+ varchar => 'varchar',
+ timestamp => 'datetime',
+ text => 'varchar',
+ real => 'double precision',
+ comment => 'text',
+ bit => 'bit',
+ tinyint => 'smallint',
+ float => 'double precision',
+ serial => 'numeric',
+ boolean => 'varchar',
+ char => 'char'
+
+);
+
+my %reserved = map { $_, 1 } qw[
+ ALL ANALYSE ANALYZE AND ANY AS ASC
+ BETWEEN BINARY BOTH
+ CASE CAST CHECK COLLATE COLUMN CONSTRAINT CROSS
+ CURRENT_DATE CURRENT_TIME CURRENT_TIMESTAMP CURRENT_USER
+ DEFAULT DEFERRABLE DESC DISTINCT DO
+ ELSE END EXCEPT
+ FALSE FOR FOREIGN FREEZE FROM FULL
+ GROUP HAVING
+ ILIKE IN INITIALLY INNER INTERSECT INTO IS ISNULL
+ JOIN LEADING LEFT LIKE LIMIT
+ NATURAL NEW NOT NOTNULL NULL
+ OFF OFFSET OLD ON ONLY OR ORDER OUTER OVERLAPS
+ PRIMARY PUBLIC REFERENCES RIGHT
+ SELECT SESSION_USER SOME TABLE THEN TO TRAILING TRUE
+ UNION UNIQUE USER USING VERBOSE WHEN WHERE
+];
+
+my $max_id_length = 30;
+my %used_identifiers = ();
+my %global_names;
+my %unreserve;
+my %truncated;
+
+=pod
+
+=head1 Sybase Create Table Syntax
+
+ CREATE [ [ LOCAL ] { TEMPORARY | TEMP } ] TABLE table_name (
+ { column_name data_type [ DEFAULT default_expr ] [ column_constraint [, ... ] ]
+ | table_constraint } [, ... ]
+ )
+ [ INHERITS ( parent_table [, ... ] ) ]
+ [ WITH OIDS | WITHOUT OIDS ]
+
+where column_constraint is:
+
+ [ CONSTRAINT constraint_name ]
+ { NOT NULL | NULL | UNIQUE | PRIMARY KEY |
+ CHECK (expression) |
+ REFERENCES reftable [ ( refcolumn ) ] [ MATCH FULL | MATCH PARTIAL ]
+ [ ON DELETE action ] [ ON UPDATE action ] }
+ [ DEFERRABLE | NOT DEFERRABLE ] [ INITIALLY DEFERRED | INITIALLY IMMEDIATE ]
+
+and table_constraint is:
+
+ [ CONSTRAINT constraint_name ]
+ { UNIQUE ( column_name [, ... ] ) |
+ PRIMARY KEY ( column_name [, ... ] ) |
+ CHECK ( expression ) |
+ FOREIGN KEY ( column_name [, ... ] ) REFERENCES reftable [ ( refcolumn [, ... ] ) ]
+ [ MATCH FULL | MATCH PARTIAL ] [ ON DELETE action ] [ ON UPDATE action ] }
+ [ DEFERRABLE | NOT DEFERRABLE ] [ INITIALLY DEFERRED | INITIALLY IMMEDIATE ]
+
+=head1 Create Index Syntax
+
+ CREATE [ UNIQUE ] INDEX index_name ON table
+ [ USING acc_method ] ( column [ ops_name ] [, ...] )
+ [ WHERE predicate ]
+ CREATE [ UNIQUE ] INDEX index_name ON table
+ [ USING acc_method ] ( func_name( column [, ... ]) [ ops_name ] )
+ [ WHERE predicate ]
+
+=cut
+
+# -------------------------------------------------------------------
+sub produce {
+ my ( $translator, $data ) = @_;
+ $DEBUG = $translator->debug;
+ $WARN = $translator->show_warnings;
+ my $no_comments = $translator->no_comments;
+ my $add_drop_table = $translator->add_drop_table;
+
+ my $output;
+ unless ( $no_comments ) {
+ $output .= sprintf
+ "--\n-- Created by %s\n-- Created on %s\n--\n\n",
+ __PACKAGE__, scalar localtime;
+ }
+
+ for my $table (
+ map { $_->[1] }
+ sort { $a->[0] <=> $b->[0] }
+ map { [ $_->{'order'}, $_ ] }
+ values %$data
+ ) {
+ my $table_name = $table->{'table_name'};
+ $table_name = mk_name( $table_name, '', undef, 1 );
+ my $table_name_ur = unreserve($table_name);
+
+ my ( @comments, @field_decs, @sequence_decs, @constraints );
+
+ push @comments, "--\n-- Table: $table_name_ur\n--" unless $no_comments;
+
+ #
+ # Fields
+ #
+ my %field_name_scope;
+ for my $field (
+ map { $_->[1] }
+ sort { $a->[0] <=> $b->[0] }
+ map { [ $_->{'order'}, $_ ] }
+ values %{ $table->{'fields'} }
+ ) {
+ my $field_name = mk_name(
+ $field->{'name'}, '', \%field_name_scope, undef,1
+ );
+ my $field_name_ur = unreserve( $field_name, $table_name );
+ my $field_str = qq["$field_name_ur"];
+ $field_str =~ s/\"//g;
+ if ($field_str =~ /identity/){
+ $field_str =~ s/identity/pidentity/;
+ }
+
+ #
+ # Datatype
+ #
+ my $data_type = lc $field->{'data_type'};
+ my $orig_data_type = $data_type;
+ my $list = $field->{'list'} || [];
+ my $commalist = join ",", @$list;
+ my $seq_name;
+
+ if ( $data_type eq 'enum' ) {
+ my $len = 0;
+ $len = ($len < length($_)) ? length($_) : $len for (@$list);
+ my $check_name = mk_name( $table_name.'_'.$field_name, 'chk' ,undef,1);
+ push @constraints,
+ "CONSTRAINT $check_name CHECK ($field_name IN ($commalist))";
+ $field_str .= " character varying($len)";
+ }
+ elsif ( $data_type eq 'set' ) {
+ # XXX add a CHECK constraint maybe
+ # (trickier and slower, than enum :)
+ my $len = length $commalist;
+ $field_str .= " character varying($len) /* set $commalist */";
+ }
+ elsif ( $field->{'is_auto_inc'} ) {
+ $field_str .= ' IDENTITY';
+ }
+ else {
+ $data_type = defined $translate{ $data_type } ?
+ $translate{ $data_type } :
+ die "Unknown datatype: $data_type\n";
+ $field_str .= ' '.$data_type;
+ if ( $data_type =~ /(char|varbit|decimal)/i ) {
+ $field_str .= '('.join(',', @{ $field->{'size'} }).')'
+ if @{ $field->{'size'} || [] };
+ }
+ elsif( $data_type =~ /numeric/){
+ $field_str .= '(9,0)';
+ }
+ if( $orig_data_type eq 'text'){
+ #interpret text fields as long varchars
+ $field_str .= '(255)';
+ }
+ elsif($data_type eq "varchar" && $orig_data_type eq "boolean"){
+ $field_str .= '(6)';
+ }
+ elsif($data_type eq "varchar" && (!$field->{'size'})){
+ $field_str .= '(255)';
+ }
+ }
+
+
+ #
+ # Default value
+ #
+ if ( defined $field->{'default'} ) {
+ $field_str .= sprintf( ' DEFAULT %s',
+ ( $field->{'is_auto_inc'} && $seq_name )
+ ? qq[nextval('"$seq_name"'::text)] :
+ ( $field->{'default'} =~ m/null/i )
+ ? 'NULL' :
+ "'".$field->{'default'}."'"
+ );
+ }
+
+ #
+ # Not null constraint
+ #
+ unless ( $field->{'null'} ) {
+ my $constraint_name = mk_name($field_name_ur, 'nn',undef,1);
+# $field_str .= ' CONSTRAINT '.$constraint_name.' NOT NULL';
+ $field_str .= ' NOT NULL';
+ }
+ else {
+ $field_str .= ' NULL' if($data_type ne "bit");
+ }
+
+ push @field_decs, $field_str;
+ }
+
+ #
+ # Constraint Declarations
+ #
+ my @constraint_decs = ();
+ my $idx_name_default;
+ for my $constraint ( @{ $table->{'constraints'} } ) {
+ my $constraint_name = $constraint->{'name'} || '';
+ my $constraint_type = $constraint->{'type'} || 'normal';
+ my @fields = map { unreserve( $_, $table_name ) }
+ @{ $constraint->{'fields'} };
+ next unless @fields;
+
+ if ( $constraint_type eq 'primary_key' ) {
+ $constraint_name = mk_name( $table_name, 'pk',undef,1 );
+ push @constraints, 'CONSTRAINT '.$constraint_name.' PRIMARY KEY '.
+ '(' . join( ', ', @fields ) . ')';
+ }
+ if ( $constraint_type eq 'foreign_key' ) {
+ $constraint_name = mk_name( $table_name, 'fk',undef,1 );
+ push @constraints, 'CONSTRAINT '.$constraint_name.' FOREIGN KEY '.
+ '(' . join( ', ', @fields ) . ') '.
+ "REFERENCES $constraint->{'reference_table'}($constraint->{'reference_fields'}[0])";
+ }
+ elsif ( $constraint_type eq 'unique' ) {
+ $constraint_name = mk_name(
+ $table_name, $constraint_name || ++$idx_name_default,undef, 1
+ );
+ push @constraints, 'CONSTRAINT ' . $constraint_name . ' UNIQUE ' .
+ '(' . join( ', ', @fields ) . ')';
+ }
+ elsif ( $constraint_type eq 'normal' ) {
+ $constraint_name = mk_name(
+ $table_name, $constraint_name || ++$idx_name_default, undef, 1
+ );
+ push @constraint_decs,
+ qq[CREATE CONSTRAINT "$constraint_name" on $table_name_ur (].
+ join( ', ', @fields ).
+ ');';
+ }
+ else {
+ warn "Unknown constraint type ($constraint_type) on table $table_name.\n"
+ if $WARN;
+ }
+ }
+
+ my $create_statement;
+ $create_statement = qq[DROP TABLE $table_name_ur;\n]
+ if $add_drop_table;
+ $create_statement .= qq[CREATE TABLE $table_name_ur (\n].
+ join( ",\n", map { " $_" } @field_decs, @constraints ).
+ "\n);"
+ ;
+
+ $output .= join( "\n\n",
+ @comments,
+ @sequence_decs,
+ $create_statement,
+ @constraint_decs,
+ ''
+ );
+ }
+#
+ # Index Declarations
+ #
+ for my $table (
+ map { $_->[1] }
+ sort { $a->[0] <=> $b->[0] }
+ map { [ $_->{'order'}, $_ ] }
+ values %$data
+ ) {
+ my $table_name = $table->{'table_name'};
+ $table_name = mk_name( $table_name, '', undef, 1 );
+ my $table_name_ur = unreserve($table_name);
+
+ my @index_decs = ();
+ for my $index ( @{ $table->{'indices'} } ) {
+ my $unique = ($index->{'name'} eq 'unique') ? 'unique' : '';
+ $output .= "CREATE $unique INDEX $index->{'name'} ON $table->{'table_name'} (".join(',',@{$index->{'fields'}}).");\n";
+ }
+ }
+ if ( $WARN ) {
+ if ( %truncated ) {
+ warn "Truncated " . keys( %truncated ) . " names:\n";
+ warn "\t" . join( "\n\t", sort keys %truncated ) . "\n";
+ }
+
+ if ( %unreserve ) {
+ warn "Encounted " . keys( %unreserve ) .
+ " unsafe names in schema (reserved or invalid):\n";
+ warn "\t" . join( "\n\t", sort keys %unreserve ) . "\n";
+ }
+ }
+
+ return $output;
+}
+
+# -------------------------------------------------------------------
+sub mk_name {
+ my ($basename, $type, $scope, $critical) = @_;
+ my $basename_orig = $basename;
+ my $max_name = $type
+ ? $max_id_length - (length($type) + 1)
+ : $max_id_length;
+ $basename = substr( $basename, 0, $max_name )
+ if length( $basename ) > $max_name;
+ my $name = $type ? "${type}_$basename" : $basename;
+ if ( $basename ne $basename_orig and $critical ) {
+ my $show_type = $type ? "+'$type'" : "";
+ warn "Truncating '$basename_orig'$show_type to $max_id_length ",
+ "character limit to make '$name'\n" if $WARN;
+ $truncated{ $basename_orig } = $name;
+ }
+
+ $scope ||= \%global_names;
+ if ( my $prev = $scope->{ $name } ) {
+ my $name_orig = $name;
+ $name .= sprintf( "%02d", ++$prev );
+ substr($name, $max_id_length - 3) = "00"
+ if length( $name ) > $max_id_length;
+
+ warn "The name '$name_orig' has been changed to ",
+ "'$name' to make it unique.\n" if $WARN;
+
+ $scope->{ $name_orig }++;
+ }
+ $name = substr( $name, 0, $max_id_length )
+ if ((length( $name ) > $max_id_length) && $critical);
+ $scope->{ $name }++;
+ return $name;
+}
+
+# -------------------------------------------------------------------
+sub unreserve {
+ my ( $name, $schema_obj_name ) = @_;
+ my ( $suffix ) = ( $name =~ s/(\W.*)$// ) ? $1 : '';
+
+ # also trap fields that don't begin with a letter
+ return $_[0] if !$reserved{ uc $name } && $name =~ /^[a-z]/i;
+
+ if ( $schema_obj_name ) {
+ ++$unreserve{"$schema_obj_name.$name"};
+ }
+ else {
+ ++$unreserve{"$name (table name)"};
+ }
+
+ my $unreserve = sprintf '%s_', $name;
+ return $unreserve.$suffix;
+}
+
+1;
+
+# -------------------------------------------------------------------
+# Life is full of misery, loneliness, and suffering --
+# and it's all over much too soon.
+# Woody Allen
+# -------------------------------------------------------------------
+
+=pod
+
+=head1 AUTHOR
+
+Ken Y. Clark E<lt>kclark@cpan.orgE<gt>
+
+=cut
projects / dbsrgits/SQL-Translator.git / commitdiff