package SQL::Translator::Producer::MySQL;
# -------------------------------------------------------------------
-# $Id: MySQL.pm,v 1.52 2006-11-27 19:28:04 schiffbruechige Exp $
+# $Id: MySQL.pm,v 1.53 2007-10-24 10:55:44 schiffbruechige Exp $
# -------------------------------------------------------------------
# Copyright (C) 2002-4 SQLFairy Authors
#
use strict;
use warnings;
-use vars qw[ $VERSION $DEBUG ];
-$VERSION = sprintf "%d.%02d", q$Revision: 1.52 $ =~ /(\d+)\.(\d+)/;
+use vars qw[ $VERSION $DEBUG %used_names ];
+$VERSION = sprintf "%d.%02d", q$Revision: 1.53 $ =~ /(\d+)\.(\d+)/;
$DEBUG = 0 unless defined $DEBUG;
use Data::Dumper;
sub produce {
my $translator = shift;
local $DEBUG = $translator->debug;
+ local %used_names;
my $no_comments = $translator->no_comments;
my $add_drop_table = $translator->add_drop_table;
my $schema = $translator->schema;
$qf = '`' if $translator->quote_field_names;
debug("PKG: Beginning production\n");
-
+ %used_names = ();
my $create;
$create .= header_comment unless ($no_comments);
# \todo Don't set if MySQL 3.x is set on command line
my $constr = create_constraint($c, $options);
push @constraint_defs, $constr if($constr);
- unless ( $indexed_fields{ ($c->fields())[0] } ) {
- push @index_defs, "INDEX ($qf" . ($c->fields())[0] . "$qf)";
- $indexed_fields{ ($c->fields())[0] } = 1;
- }
+ unless ( $indexed_fields{ ($c->fields())[0] } || $c->type ne FOREIGN_KEY ) {
+ push @index_defs, "INDEX ($qf" . ($c->fields())[0] . "$qf)";
+ $indexed_fields{ ($c->fields())[0] } = 1;
+ }
}
$create .= join(",\n", map { " $_" }
# Footer
#
$create .= "\n)";
- my $table_type_defined = 0;
- for my $t1_option_ref ( $table->options ) {
- my($key, $value) = %{$t1_option_ref};
- $table_type_defined = 1
- if uc $key eq 'ENGINE' or uc $key eq 'TYPE';
- $create .= " $key=$value";
- }
- my $mysql_table_type = $table->extra('mysql_table_type');
- #my $charset = $table->extra('mysql_character_set');
- #my $collate = $table->extra('mysql_collate');
- #$create .= " Type=$mysql_table_type" if $mysql_table_type;
- #$create .= " DEFAULT CHARACTER SET $charset" if $charset;
- #$create .= " COLLATE $collate" if $collate;
- $create .= " Type=$mysql_table_type"
- if $mysql_table_type && !$table_type_defined;
- my $charset = $table->extra('mysql_charset');
- my $collate = $table->extra('mysql_collate');
- my $comments = $table->comments;
-
- $create .= " DEFAULT CHARACTER SET $charset" if $charset;
- $create .= " COLLATE $collate" if $collate;
- $create .= qq[ comment='$comments'] if $comments;
+ $create .= generate_table_options($table) || '';
$create .= ";\n\n";
return $drop ? ($drop,$create) : $create;
}
+sub generate_table_options
+{
+ my ($table) = @_;
+ my $create;
+
+ my $table_type_defined = 0;
+ for my $t1_option_ref ( $table->options ) {
+ my($key, $value) = %{$t1_option_ref};
+ $table_type_defined = 1
+ if uc $key eq 'ENGINE' or uc $key eq 'TYPE';
+ $create .= " $key=$value";
+ }
+ my $mysql_table_type = $table->extra('mysql_table_type');
+ #my $charset = $table->extra('mysql_character_set');
+ #my $collate = $table->extra('mysql_collate');
+ #$create .= " Type=$mysql_table_type" if $mysql_table_type;
+ #$create .= " DEFAULT CHARACTER SET $charset" if $charset;
+ #$create .= " COLLATE $collate" if $collate;
+ $create .= " Type=$mysql_table_type"
+ if $mysql_table_type && !$table_type_defined;
+ my $charset = $table->extra('mysql_charset');
+ my $collate = $table->extra('mysql_collate');
+ my $comments = $table->comments;
+
+ $create .= " DEFAULT CHARACTER SET $charset" if $charset;
+ $create .= " COLLATE $collate" if $collate;
+ $create .= qq[ comment='$comments'] if $comments;
+ return $create;
+}
+
sub create_field
{
my ($field, $options) = @_;
return $field_def;
}
+sub alter_create_index
+{
+ my ($index, $options) = @_;
+
+ my $qt = $options->{quote_table_names} || '';
+ my $qf = $options->{quote_field_names} || '';
+
+ return join( ' ',
+ 'ALTER TABLE',
+ $qt.$index->table->name.$qt,
+ 'ADD',
+ create_index(@_)
+ );
+}
+
sub create_index
{
my ($index, $options) = @_;
my $qf = $options->{quote_field_names} || '';
return join( ' ',
- lc $index->type eq 'normal' ? 'INDEX' : $index->type,
+ lc $index->type eq 'normal' ? 'INDEX' : $index->type . ' INDEX',
$index->name,
'(' . $qf . join( "$qf, $qf", $index->fields ) . $qf . ')'
);
}
+sub alter_drop_index
+{
+ my ($index, $options) = @_;
+
+ my $qt = $options->{quote_table_names} || '';
+ my $qf = $options->{quote_field_names} || '';
+
+ return join( ' ',
+ 'ALTER TABLE',
+ $qt.$index->table->name.$qt,
+ 'DROP',
+ 'INDEX',
+ $index->name || $index->fields
+ );
+
+}
+
+sub alter_drop_constraint
+{
+ my ($c, $options) = @_;
+
+ my $qt = $options->{quote_table_names} || '';
+ my $qc = $options->{quote_constraint_names} || '';
+
+ my $out = sprintf('ALTER TABLE %s DROP %s %s',
+ $c->table->name,
+ $c->type,
+ $qc . $c->name . $qc );
+
+ return $out;
+}
+
+sub alter_create_constraint
+{
+ my ($index, $options) = @_;
+
+ my $qt = $options->{quote_table_names} || '';
+ return join( ' ',
+ 'ALTER TABLE',
+ $qt.$index->table->name.$qt,
+ 'ADD',
+ create_constraint(@_) );
+}
+
sub create_constraint
{
my ($c, $options) = @_;
my $qf = $options->{quote_field_names} || '';
my $qt = $options->{quote_table_names} || '';
+ my $leave_name = $options->{leave_name} || undef;
my $counter = ($options->{fk_name_counter} ||= {});
my @fields = $c->fields or next;
# Make sure FK field is indexed or MySQL complains.
#
+ my $c_name = $c->name;
$counter->{$c->table} ||= {};
my $def = join(' ',
map { $_ || () }
'CONSTRAINT',
- $qt . join('_', $c->table,
- $c->name,
- ($counter->{$c->table}{$c->name}++ || ())
+ $qt . join('_', next_unused_name($c_name)
) . $qt,
'FOREIGN KEY'
);
+
$def .= ' ('.$qf . join( "$qf, $qf", @fields ) . $qf . ')';
$def .= ' REFERENCES ' . $qt . $c->reference_table . $qt;
return undef;
}
+sub alter_table
+{
+ my ($to_table, $options) = @_;
+
+ my $qt = $options->{quote_table_name} || '';
+
+ my $table_options = generate_table_options($to_table) || '';
+ my $out = sprintf('ALTER TABLE %s%s',
+ $qt . $to_table->name . $qt,
+ $table_options);
+
+ return $out;
+}
+
sub alter_field
{
my ($from_field, $to_field, $options) = @_;
}
+sub next_unused_name {
+ my $name = shift || '';
+ if ( !defined($used_names{$name}) ) {
+ $used_names{$name} = $name;
+ return $name;
+ }
+
+ my $i = 1;
+ while ( defined($used_names{$name . '_' . $i}) ) {
+ ++$i;
+ }
+ $name .= '_' . $i;
+ $used_names{$name} = $name;
+ return $name;
+}
+
1;
# -------------------------------------------------------------------
projects / dbsrgits/SQL-Translator.git / blobdiff