X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FSQL%2FTranslator%2FProducer%2FSQLite.pm;h=d03112cb085650edfe49de109c85c0a10eeafd1d;hb=ba506e52c480afe33dfec6b38a12759fad1e7fa2;hp=a8d66818f5535733af3a2018a516c993aa7db3f4;hpb=3db73ef80ef3e33e07774288757871abcc6ea2d1;p=dbsrgits%2FSQL-Translator.git diff --git a/lib/SQL/Translator/Producer/SQLite.pm b/lib/SQL/Translator/Producer/SQLite.pm index a8d6681..d03112c 100644 --- a/lib/SQL/Translator/Producer/SQLite.pm +++ b/lib/SQL/Translator/Producer/SQLite.pm @@ -1,9 +1,7 @@ package SQL::Translator::Producer::SQLite; # ------------------------------------------------------------------- -# $Id: SQLite.pm,v 1.15 2006-08-26 11:35:31 schiffbruechige Exp $ -# ------------------------------------------------------------------- -# 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 @@ -38,20 +36,20 @@ This module will produce text output of the schema suitable for SQLite. =cut use strict; +use warnings; use Data::Dumper; use SQL::Translator::Schema::Constants; use SQL::Translator::Utils qw(debug header_comment); +use Readonly; use vars qw[ $VERSION $DEBUG $WARN ]; -$VERSION = sprintf "%d.%02d", q$Revision: 1.15 $ =~ /(\d+)\.(\d+)/; -$DEBUG = 0 unless defined $DEBUG; -$WARN = 0 unless defined $WARN; +$VERSION = '1.60'; +$DEBUG = 0 if !defined $DEBUG; +$WARN = 0 if !defined $WARN; -my %used_identifiers = (); -my $max_id_length = 30; +Readonly my $MAX_ID_LENGTH => 30; my %global_names; -my %truncated; sub produce { my $translator = shift; @@ -61,13 +59,16 @@ sub produce { 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 $sqlite_version = $producer_args->{sqlite_version} || 0; + my $no_txn = $producer_args->{no_transaction}; debug("PKG: Beginning production\n"); + %global_names = (); #reset + my @create = (); push @create, header_comment unless ($no_comments); - push @create, 'BEGIN TRANSACTION'; + $create[0] .= "\n\nBEGIN TRANSACTION" unless $no_txn; for my $table ( $schema->get_tables ) { push @create, create_table($table, { no_comments => $no_comments, @@ -82,34 +83,32 @@ sub produce { }); } - return wantarray ? (@create, "COMMIT") : join(";\n\n", (@create, "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; - $basename = substr( $basename, 0, $max_name ) - if length( $basename ) > $max_name; - $basename =~ s/\./_/g; - 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 } = $name; - } + my ($name, $scope, $critical) = @_; $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 ) > $max_id_length; + substr($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 $WARN; @@ -157,7 +156,7 @@ sub create_table debug("PKG: Looking at table '$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 ' : ''; @@ -166,9 +165,15 @@ sub create_table # my $exists = ($sqlite_version >= 3.3) ? ' IF EXISTS' : ''; my @create; - push @create, "--\n-- Table: $table_name\n--\n" unless $no_comments; - push @create, qq[DROP TABLE$exists $table_name] if $add_drop_table; - my $create_table = "CREATE ${temp}TABLE $table_name (\n"; + my ($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 @@ -220,7 +225,7 @@ sub create_table $create_table .= join(",\n", map { " $_" } @field_defs ) . "\n)"; - return (@create, $create_table, @index_defs, @constraint_defs, @trigger_defs ); + return (@create, $create_table, @index_defs, @constraint_defs ); } sub create_field @@ -308,7 +313,7 @@ sub create_index my ($index, $options) = @_; my $name = $index->name; - $name = mk_name($index->table->name, $name); + $name = mk_name($name); my $type = $index->type eq 'UNIQUE' ? "UNIQUE " : ''; @@ -328,7 +333,7 @@ sub create_constraint my ($c, $options) = @_; my $name = $c->name; - $name = mk_name($c->table->name, $name); + $name = mk_name($name); my @fields = $c->fields; (my $index_table_name = $c->table->name) =~ s/^.+?\.//; # table name may not specify schema warn "removing schema name from '" . $c->table->name . "' to make '$index_table_name'\n" if $WARN; @@ -340,6 +345,59 @@ sub create_constraint return $c_def; } +sub create_trigger { + my ($trigger, $options) = @_; + my $add_drop = $options->{add_drop_trigger}; + + my @statements; + + my $trigger_name = $trigger->name; + my $events = $trigger->database_events; + for my $evt ( @$events ) { + + my $trig_name = $trigger_name; + if (@$events > 1) { + $trig_name .= "_$evt"; + + warn "Multiple database events supplied for trigger '$trigger_name', ", + "creating trigger '$trig_name' for the '$evt' event.\n" if $WARN; + } + + push @statements, "DROP TRIGGER IF EXISTS $trig_name" if $add_drop; + + + $DB::single = 1; + my $action = ""; + if (not 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 "; + $action .= $_ . "; " for (@$steps); + $action .= "END"; + } + + push @statements, sprintf ( + 'CREATE TRIGGER %s %s %s on %s %s', + $trig_name, + $trigger->perform_action_when, + $evt, + $trigger->on_table, + $action + ); + } + + return @statements; +} + sub alter_table { } # Noop sub add_field { @@ -468,7 +526,7 @@ SQL::Translator, http://www.sqlite.org/. =head1 AUTHOR -Ken Y. Clark C<< >>. +Ken Youens-Clark Ekclark@cpan.orgE. Diff code added by Ash Berlin C<< >>.