package SQL::Translator::Producer::SQLite;
# -------------------------------------------------------------------
-# $Id: SQLite.pm,v 1.15 2006-08-26 11:35:31 schiffbruechige Exp $
+# $Id: SQLite.pm 1445 2009-02-07 17:50:03Z ashberlin $
# -------------------------------------------------------------------
-# Copyright (C) 2002-4 SQLFairy Authors
+# Copyright (C) 2002-2009 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
=cut
use strict;
+use warnings;
use Data::Dumper;
use SQL::Translator::Schema::Constants;
use SQL::Translator::Utils qw(debug header_comment);
-use vars qw[ $VERSION $DEBUG $WARN ];
+use vars qw[ $DEBUG $WARN ];
-$VERSION = sprintf "%d.%02d", q$Revision: 1.15 $ =~ /(\d+)\.(\d+)/;
$DEBUG = 0 unless defined $DEBUG;
$WARN = 0 unless defined $WARN;
-my %used_identifiers = ();
-my $max_id_length = 30;
-my %global_names;
-my %truncated;
+our %used_identifiers = ();
+our $max_id_length = 30;
+our %global_names;
+our %truncated;
sub produce {
my $translator = shift;
my $no_comments = $translator->no_comments;
my $add_drop_table = $translator->add_drop_table;
my $schema = $translator->schema;
+ my $producer_args = $translator->producer_args;
+ my $sqlite_version = $producer_args->{sqlite_version} || 0;
+ my $no_txn = $producer_args->{no_transaction};
debug("PKG: Beginning production\n");
- my $create = '';
- $create .= header_comment unless ($no_comments);
- $create .= "BEGIN TRANSACTION;\n\n";
+ my @create = ();
+ push @create, header_comment unless ($no_comments);
+ $create[0] .= "\n\nBEGIN TRANSACTION" unless $no_txn;
- my @table_defs = ();
for my $table ( $schema->get_tables ) {
- my @defs = create_table($table, { no_comments => $no_comments,
+ push @create, create_table($table, { no_comments => $no_comments,
+ sqlite_version => $sqlite_version,
add_drop_table => $add_drop_table,});
- my $create = shift @defs;
- $create .= ";\n";
- push @table_defs, $create, map( { "$_;" } @defs), "";
}
-# $create .= "COMMIT;\n";
+ for my $view ( $schema->get_views ) {
+ push @create, create_view($view, {
+ add_drop_view => $add_drop_table,
+ no_comments => $no_comments,
+ });
+ }
- return wantarray ? ($create, @table_defs, "COMMIT;\n") : join("\n", ($create, @table_defs, "COMMIT;\n"));
+ for my $trigger ( $schema->get_triggers ) {
+ push @create, create_trigger($trigger, {
+ add_drop_trigger => $add_drop_table,
+ no_comments => $no_comments,
+ });
+ }
+
+ if (wantarray) {
+ push @create, "COMMIT" unless $no_txn;
+ return @create;
+ } else {
+ push @create, "COMMIT;\n" unless $no_txn;
+ return join(";\n\n", @create );
+ }
}
# -------------------------------------------------------------------
sub mk_name {
my ($basename, $type, $scope, $critical) = @_;
my $basename_orig = $basename;
- my $max_name = $type
- ? $max_id_length - (length($type) + 1)
- : $max_id_length;
+ my $max_name = !$max_id_length
+ ? length($type) + 1
+ : $type
+ ? $max_id_length - (length($type) + 1)
+ : $max_id_length;
$basename = substr( $basename, 0, $max_name )
if length( $basename ) > $max_name;
$basename =~ s/\./_/g;
return $name;
}
+sub create_view {
+ my ($view, $options) = @_;
+ my $add_drop_view = $options->{add_drop_view};
+
+ my $view_name = $view->name;
+ debug("PKG: Looking at view '${view_name}'\n");
+
+ # Header. Should this look like what mysqldump produces?
+ my $extra = $view->extra;
+ my $create = '';
+ $create .= "--\n-- View: ${view_name}\n--\n" unless $options->{no_comments};
+ $create .= "DROP VIEW IF EXISTS $view_name;\n" if $add_drop_view;
+ $create .= 'CREATE';
+ $create .= " TEMPORARY" if exists($extra->{temporary}) && $extra->{temporary};
+ $create .= ' VIEW';
+ $create .= " IF NOT EXISTS" if exists($extra->{if_not_exists}) && $extra->{if_not_exists};
+ $create .= " ${view_name}";
+
+ if( my $sql = $view->sql ){
+ $create .= " AS\n ${sql}";
+ }
+ return $create;
+}
+
+
sub create_table
{
my ($table, $options) = @_;
my $table_name = $table->name;
my $no_comments = $options->{no_comments};
my $add_drop_table = $options->{add_drop_table};
+ my $sqlite_version = $options->{sqlite_version} || 0;
debug("PKG: Looking at table '$table_name'\n");
- my ( @index_defs, @constraint_defs, @trigger_defs );
+ my ( @index_defs, @constraint_defs );
my @fields = $table->get_fields or die "No fields in $table_name";
my $temp = $options->{temporary_table} ? 'TEMPORARY ' : '';
#
# 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 ${temp}TABLE $table_name (\n";
+ my $exists = ($sqlite_version >= 3.3) ? ' IF EXISTS' : '';
+ my @create;
+ my ($comment, $create_table) = "";
+ $comment = "--\n-- Table: $table_name\n--\n" unless $no_comments;
+ if ($add_drop_table) {
+ push @create, $comment . qq[DROP TABLE$exists $table_name];
+ } else {
+ $create_table = $comment;
+ }
+
+ $create_table .= "CREATE ${temp}TABLE $table_name (\n";
#
# Comments
#
if ( $table->comments and !$no_comments ){
- $create .= "-- Comments: \n-- ";
- $create .= join "\n-- ", $table->comments;
- $create .= "\n--\n\n";
+ $create_table .= "-- Comments: \n-- ";
+ $create_table .= join "\n-- ", $table->comments;
+ $create_table .= "\n--\n\n";
}
#
push @constraint_defs, create_constraint($c);
}
- $create .= join(",\n", map { " $_" } @field_defs ) . "\n)";
+ $create_table .= join(",\n", map { " $_" } @field_defs ) . "\n)";
- return ($create, @index_defs, @constraint_defs, @trigger_defs );
+ return (@create, $create_table, @index_defs, @constraint_defs );
}
sub create_field
# 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'";
- }
+ if (defined $default) {
+ SQL::Translator::Producer->_apply_default_value(
+ \$field_def,
+ $default,
+ [
+ 'NULL' => \'NULL',
+ 'now()' => 'now()',
+ 'CURRENT_TIMESTAMP' => 'CURRENT_TIMESTAMP',
+ ],
+ );
}
return $field_def;
return $c_def;
}
+sub create_trigger {
+ my ($trigger, $options) = @_;
+ my $add_drop = $options->{add_drop_trigger};
+
+ my $name = $trigger->name;
+ my @create;
+
+ push @create, "DROP TRIGGER IF EXISTS $name" if $add_drop;
+
+ my $events = $trigger->database_events;
+ die "Can't handle multiple events in triggers" if @$events > 1;
+
+ my $action = "";
+
+ $DB::single = 1;
+ unless (ref $trigger->action) {
+ $action .= "BEGIN " . $trigger->action . " END";
+ } else {
+ $action = $trigger->action->{for_each} . " "
+ if $trigger->action->{for_each};
+
+ $action = $trigger->action->{when} . " "
+ if $trigger->action->{when};
+
+ my $steps = $trigger->action->{steps} || [];
+
+ $action .= "BEGIN ";
+ for (@$steps) {
+ $action .= $_ . "; "
+ }
+ $action .= "END";
+ }
+
+ push @create, "CREATE TRIGGER $name " .
+ $trigger->perform_action_when . " " .
+ $events->[0] .
+ " on " . $trigger->on_table . " " .
+ $action;
+
+ return @create;
+
+}
+
sub alter_table { } # Noop
sub add_field {
sub alter_drop_index {
my ($constraint) = @_;
- return sprintf("DROP INDEX %s ON %s",
- $constraint->name, $constraint->table->name);
+ return sprintf("DROP INDEX %s",
+ $constraint->name);
}
sub batch_alter_table {
my ($table, $diffs) = @_;
- $DB::single = 1 if $table->name eq 'deleted';
-
# If we have any of the following
#
# rename_field
# COMMIT;
#
# Fun, eh?
+ #
+ # If we have rename_field we do similarly.
+
+ my $table_name = $table->name;
+ my $renaming = $diffs->{rename_table} && @{$diffs->{rename_table}};
if ( @{$diffs->{rename_field}} == 0 &&
@{$diffs->{alter_field}} == 0 &&
- @{$diffs->{drop_field}} == 0) {
- return join("\n", map {
+ @{$diffs->{drop_field}} == 0
+ ) {
+# return join("\n", map {
+ return map {
my $meth = __PACKAGE__->can($_) or die __PACKAGE__ . " cant $_";
- map { my $sql = $meth->(ref $_ eq 'ARRAY' ? @$_ : $_); $sql ? ("$sql;") : () } @{ $diffs->{$_} }
+ map { my $sql = $meth->(ref $_ eq 'ARRAY' ? @$_ : $_); $sql ? ("$sql") : () } @{ $diffs->{$_} }
- } grep { @{$diffs->{$_}} } keys %$diffs);
+ } grep { @{$diffs->{$_}} }
+ qw/rename_table
+ alter_drop_constraint
+ alter_drop_index
+ drop_field
+ add_field
+ alter_field
+ rename_field
+ alter_create_index
+ alter_create_constraint
+ alter_table/;
}
my @sql;
+ my $old_table = $renaming ? $diffs->{rename_table}[0][0] : $table;
do {
- local $table->{name} = $table->name . '_temp_alter';
+ local $table->{name} = $table_name . '_temp_alter';
# We only want the table - dont care about indexes on tmp table
my ($table_sql) = create_table($table, {no_comments => 1, temporary_table => 1});
push @sql,$table_sql;
};
- push @sql, "INSERT INTO @{[$table]}_temp_alter SELECT @{[ join(', ', $table->get_fields)]} FROM @{[$table]}",
- "DROP TABLE @{[$table]}",
+ push @sql, "INSERT INTO @{[$table_name]}_temp_alter SELECT @{[ join(', ', $old_table->get_fields)]} FROM @{[$old_table]}",
+ "DROP TABLE @{[$old_table]}",
create_table($table, { no_comments => 1 }),
- "INSERT INTO @{[$table]} SELECT @{[ join(', ', $table->get_fields)]} FROM @{[$table]}_temp_alter",
- "DROP TABLE @{[$table]}_temp_alter";
+ "INSERT INTO @{[$table_name]} SELECT @{[ join(', ', $old_table->get_fields)]} FROM @{[$table_name]}_temp_alter",
+ "DROP TABLE @{[$table_name]}_temp_alter";
- return join(";\n", @sql, "");
+ return @sql;
+# return join("", @sql, "");
}
sub drop_table {
my ($table) = @_;
- return "DROP TABLE $table;";
+ return "DROP TABLE $table";
}
+sub rename_table {
+ my ($old_table, $new_table, $options) = @_;
+
+ my $qt = $options->{quote_table_names} || '';
+
+ return "ALTER TABLE $qt$old_table$qt RENAME TO $qt$new_table$qt";
+
+}
+
+# No-op. Just here to signify that we are a new style parser.
+sub preproces_schema { }
+
1;
=pod
projects / dbsrgits/SQL-Translator.git / blobdiff