package SQL::Translator::Producer::SQLite;
# -------------------------------------------------------------------
-# $Id: SQLite.pm,v 1.7 2003-10-04 01:21:36 kycl4rk Exp $
+# $Id: SQLite.pm,v 1.15 2006-08-26 11:35:31 schiffbruechige Exp $
# -------------------------------------------------------------------
-# Copyright (C) 2003 Ken Y. Clark <kclark@cpan.org>,
-# darren chamberlain <darren@cpan.org>,
-# Chris Mungall <cjm@fruitfly.org>
+# Copyright (C) 2002-4 SQLFairy Authors
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# 02111-1307 USA
# -------------------------------------------------------------------
+=head1 NAME
+
+SQL::Translator::Producer::SQLite - SQLite producer for SQL::Translator
+
+=head1 SYNOPSIS
+
+ use SQL::Translator;
+
+ my $t = SQL::Translator->new( parser => '...', producer => 'SQLite' );
+ $t->translate;
+
+=head1 DESCRIPTION
+
+This module will produce text output of the schema suitable for SQLite.
+
+=cut
+
use strict;
use Data::Dumper;
use SQL::Translator::Schema::Constants;
use vars qw[ $VERSION $DEBUG $WARN ];
-$VERSION = sprintf "%d.%02d", q$Revision: 1.7 $ =~ /(\d+)\.(\d+)/;
+$VERSION = sprintf "%d.%02d", q$Revision: 1.15 $ =~ /(\d+)\.(\d+)/;
$DEBUG = 0 unless defined $DEBUG;
$WARN = 0 unless defined $WARN;
$create .= header_comment unless ($no_comments);
$create .= "BEGIN TRANSACTION;\n\n";
- my ( @index_defs, @constraint_defs, @trigger_defs );
+ my @table_defs = ();
for my $table ( $schema->get_tables ) {
- my $table_name = $table->name;
- debug("PKG: Looking at table '$table_name'\n");
-
- my @fields = $table->get_fields or die "No fields in $table_name";
-
- #
- # Header.
- #
- $create .= "--\n-- Table: $table_name\n--\n" unless $no_comments;
- $create .= qq[DROP TABLE $table_name;\n] if $add_drop_table;
- $create .= "CREATE TABLE $table_name (\n";
-
- #
- # How many fields in PK?
- #
- my $pk = $table->primary_key;
- my @pk_fields = $pk ? $pk->fields : ();
-
- #
- # Fields
- #
- my ( @field_defs, $pk_set );
- for my $field ( @fields ) {
- my $field_name = $field->name;
- debug("PKG: Looking at field '$field_name'\n");
- my $field_def = $field_name;
-
- # data type and size
- my $size = $field->size;
- my $data_type = $field->data_type;
- $data_type = 'varchar' if lc $data_type eq 'set';
-
- if ( $data_type =~ /timestamp/i ) {
- push @trigger_defs,
- "CREATE TRIGGER ts_${table_name} ".
- "after insert on $table_name\n".
- "begin\n".
- " update $table_name set $field_name=timestamp() ".
- "where id=new.id;\n".
- "end;\n"
- ;
-
- }
-
- #
- # SQLite is generally typeless, but newer versions will
- # make a field autoincrement if it is declared as (and
- # *only* as) INTEGER PRIMARY KEY
- #
- if (
- $field->is_primary_key &&
- scalar @pk_fields == 1 &&
- (
- $data_type =~ /^int(eger)?$/i
- ||
- ( $data_type =~ /^number?$/i && $size !~ /,/ )
- )
- ) {
- $data_type = 'INTEGER PRIMARY KEY';
- $size = undef;
- $pk_set = 1;
- }
-
- $field_def .= sprintf " %s%s", $data_type,
- ( !$field->is_auto_increment && $size ) ? "($size)" : '';
-
- # Null?
- $field_def .= ' NOT NULL' unless $field->is_nullable;
-
- # Default? XXX Need better quoting!
- my $default = $field->default_value;
- if ( defined $default ) {
- if ( uc $default eq 'NULL') {
- $field_def .= ' DEFAULT NULL';
- } else {
- $field_def .= " DEFAULT '$default'";
- }
- }
-
- push @field_defs, $field_def;
- }
-
- if (
- scalar @pk_fields > 1
- ||
- ( @pk_fields && !$pk_set )
- ) {
- push @field_defs, 'PRIMARY KEY (' . join(', ', @pk_fields ) . ')';
- }
-
- #
- # Indices
- #
- my $idx_name_default = 'A';
- for my $index ( $table->get_indices ) {
- my $name = $index->name;
- $name = mk_name($table_name, $name || ++$idx_name_default);
-
- # strip any field size qualifiers as SQLite doesn't like these
- my @fields = map { s/\(\d+\)$//; $_ } $index->fields;
- push @index_defs,
- "CREATE INDEX $name on $table_name ".
- '(' . join( ', ', @fields ) . ');';
- }
-
- #
- # Constraints
- #
- my $c_name_default = 'A';
- for my $c ( $table->get_constraints ) {
- next unless $c->type eq UNIQUE;
- my $name = $c->name;
- $name = mk_name($table_name, $name || ++$idx_name_default);
- my @fields = $c->fields;
-
- push @constraint_defs,
- "CREATE UNIQUE INDEX $name on $table_name ".
- '(' . join( ', ', @fields ) . ')';
- }
-
- $create .= join(",\n", map { " $_" } @field_defs ) . "\n);\n";
-
- $create .= "\n";
+ push @table_defs, create_table($table, { no_comments => $no_comments,
+ add_drop_table => $add_drop_table,});
}
- for my $def ( @index_defs, @constraint_defs, @trigger_defs ) {
- $create .= "$def\n";
- }
+# $create .= "COMMIT;\n";
- $create .= "COMMIT;\n";
-
- return $create;
+ return wantarray ? ($create, @table_defs, "COMMIT;\n") : join("\n", ($create, @table_defs, "COMMIT;\n"));
}
# -------------------------------------------------------------------
return $name;
}
+sub create_table
+{
+ my ($table, $options) = @_;
+
+ my $table_name = $table->name;
+ my $no_comments = $options->{no_comments};
+ my $add_drop_table = $options->{add_drop_table};
+
+ debug("PKG: Looking at table '$table_name'\n");
+
+ my ( @index_defs, @constraint_defs, @trigger_defs );
+ my @fields = $table->get_fields or die "No fields in $table_name";
+
+ #
+ # Header.
+ #
+ my $create = '';
+ $create .= "--\n-- Table: $table_name\n--\n" unless $no_comments;
+ $create .= qq[DROP TABLE $table_name;\n] if $add_drop_table;
+ $create .= "CREATE TABLE $table_name (\n";
+
+ #
+ # Comments
+ #
+ if ( $table->comments and !$no_comments ){
+ $create .= "-- Comments: \n-- ";
+ $create .= join "\n-- ", $table->comments;
+ $create .= "\n--\n\n";
+ }
+
+ #
+ # How many fields in PK?
+ #
+ my $pk = $table->primary_key;
+ my @pk_fields = $pk ? $pk->fields : ();
+
+ #
+ # Fields
+ #
+ my ( @field_defs, $pk_set );
+ for my $field ( @fields ) {
+ push @field_defs, create_field($field);
+ }
+
+ if (
+ scalar @pk_fields > 1
+ ||
+ ( @pk_fields && !grep /INTEGER PRIMARY KEY/, @field_defs )
+ ) {
+ push @field_defs, 'PRIMARY KEY (' . join(', ', @pk_fields ) . ')';
+ }
+
+ #
+ # Indices
+ #
+ my $idx_name_default = 'A';
+ for my $index ( $table->get_indices ) {
+ push @index_defs, create_index($index);
+ }
+
+ #
+ # Constraints
+ #
+ my $c_name_default = 'A';
+ for my $c ( $table->get_constraints ) {
+ next unless $c->type eq UNIQUE;
+ push @constraint_defs, create_constraint($c);
+ }
+
+ $create .= join(",\n", map { " $_" } @field_defs ) . "\n);\n";
+
+ $create .= "\n";
+
+ for my $def ( @index_defs, @constraint_defs, @trigger_defs ) {
+ $create .= "$def\n";
+ }
+ return $create;
+}
+
+sub create_field
+{
+ my ($field, $options) = @_;
+
+ my $field_name = $field->name;
+ debug("PKG: Looking at field '$field_name'\n");
+ my $field_comments = $field->comments
+ ? "-- " . $field->comments . "\n "
+ : '';
+
+ my $field_def = $field_comments.$field_name;
+
+ # data type and size
+ my $size = $field->size;
+ my $data_type = $field->data_type;
+ $data_type = 'varchar' if lc $data_type eq 'set';
+ $data_type = 'blob' if lc $data_type eq 'bytea';
+
+ if ( lc $data_type =~ /(text|blob)/i ) {
+ $size = undef;
+ }
+
+# if ( $data_type =~ /timestamp/i ) {
+# push @trigger_defs,
+# "CREATE TRIGGER ts_${table_name} ".
+# "after insert on $table_name\n".
+# "begin\n".
+# " update $table_name set $field_name=timestamp() ".
+# "where id=new.id;\n".
+# "end;\n"
+# ;
+#
+# }
+
+ #
+ # SQLite is generally typeless, but newer versions will
+ # make a field autoincrement if it is declared as (and
+ # *only* as) INTEGER PRIMARY KEY
+ #
+ my $pk = $field->table->primary_key;
+ my @pk_fields = $pk ? $pk->fields : ();
+
+ if (
+ $field->is_primary_key &&
+ scalar @pk_fields == 1 &&
+ (
+ $data_type =~ /int(eger)?$/i
+ ||
+ ( $data_type =~ /^number?$/i && $size !~ /,/ )
+ )
+ ) {
+ $data_type = 'INTEGER PRIMARY KEY';
+ $size = undef;
+# $pk_set = 1;
+ }
+
+ $field_def .= sprintf " %s%s", $data_type,
+ ( !$field->is_auto_increment && $size ) ? "($size)" : '';
+
+ # Null?
+ $field_def .= ' NOT NULL' unless $field->is_nullable;
+
+ # Default? XXX Need better quoting!
+ my $default = $field->default_value;
+ if ( defined $default ) {
+ if ( uc $default eq 'NULL') {
+ $field_def .= ' DEFAULT NULL';
+ } elsif ( $default eq 'now()' ||
+ $default eq 'CURRENT_TIMESTAMP' ) {
+ $field_def .= ' DEFAULT CURRENT_TIMESTAMP';
+ } elsif ( $default =~ /val\(/ ) {
+ next;
+ } else {
+ $field_def .= " DEFAULT '$default'";
+ }
+ }
+
+ return $field_def;
+
+}
+
+sub create_index
+{
+ my ($index, $options) = @_;
+
+ my $name = $index->name;
+ $name = mk_name($index->table->name, $name); # || ++$idx_name_default);
+
+ # strip any field size qualifiers as SQLite doesn't like these
+ my @fields = map { s/\(\d+\)$//; $_ } $index->fields;
+ my $index_def =
+ "CREATE INDEX $name on " . $index->table->name .
+ ' (' . join( ', ', @fields ) . ');';
+
+ return $index_def;
+}
+
+sub create_constraint
+{
+ my ($c, $options) = @_;
+
+ my $name = $c->name;
+ $name = mk_name($c->table->name, $name); # || ++$idx_name_default);
+ my @fields = $c->fields;
+
+ my $c_def =
+ "CREATE UNIQUE INDEX $name on " . $c->table->name .
+ ' (' . join( ', ', @fields ) . ');';
+
+ return $c_def;
+}
+
1;
-=head1 NAME
+=pod
-SQL::Translator::Producer::SQLite - SQLite producer for SQL::Translator
+=head1 SEE ALSO
+
+SQL::Translator, http://www.sqlite.org/.
=head1 AUTHOR
-Ken Y. Clark E<lt>kclark@cpan.orgE<gt>
+Ken Y. Clark E<lt>kclark@cpan.orgE<gt>.
+
+=cut
projects / dbsrgits/SQL-Translator.git / blobdiff