X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FSQL%2FTranslator%2FProducer%2FPostgreSQL.pm;h=4b883c72b4b563a80cd2a6ce1f132ead6d575dcf;hb=3e814930c497a91b80e91a7ae7a2e51178b47c48;hp=f97669c8e226e37ac7dffe936a53aa3a3715d2fb;hpb=7c71eaabc3be1d3a5846a39d02fc8fe9cd8d7585;p=dbsrgits%2FSQL-Translator.git diff --git a/lib/SQL/Translator/Producer/PostgreSQL.pm b/lib/SQL/Translator/Producer/PostgreSQL.pm index f97669c..4b883c7 100644 --- a/lib/SQL/Translator/Producer/PostgreSQL.pm +++ b/lib/SQL/Translator/Producer/PostgreSQL.pm @@ -1,9 +1,7 @@ package SQL::Translator::Producer::PostgreSQL; # ------------------------------------------------------------------- -# $Id: PostgreSQL.pm,v 1.23 2005-07-05 16:20:43 mwz444 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 @@ -34,18 +32,28 @@ SQL::Translator::Producer::PostgreSQL - PostgreSQL producer for SQL::Translator Creates a DDL suitable for PostgreSQL. Very heavily based on the Oracle producer. +Now handles PostGIS Geometry and Geography data types on table definitions. +Does not yet support PostGIS Views. + =cut use strict; -use vars qw[ $DEBUG $WARN $VERSION ]; -$VERSION = sprintf "%d.%02d", q$Revision: 1.23 $ =~ /(\d+)\.(\d+)/; -$DEBUG = 1 unless defined $DEBUG; +use warnings; +use vars qw[ $DEBUG $WARN $VERSION %used_names ]; +$VERSION = '1.59'; +$DEBUG = 0 unless defined $DEBUG; +use base qw(SQL::Translator::Producer); use SQL::Translator::Schema::Constants; -use SQL::Translator::Utils qw(header_comment); +use SQL::Translator::Utils qw(debug header_comment parse_dbms_version); use Data::Dumper; -my %translate = ( +my ( %translate, %index_name ); +my $max_id_length; + +BEGIN { + + %translate = ( # # MySQL types # @@ -71,7 +79,7 @@ my %translate = ( set => 'character varying', date => 'date', datetime => 'timestamp', - time => 'date', + time => 'time', timestamp => 'timestamp', year => 'date', @@ -100,6 +108,8 @@ my %translate = ( float => 'numeric', ); + $max_id_length = 62; +} my %reserved = map { $_, 1 } qw[ ALL ANALYSE ANALYZE AND ANY AS ASC BETWEEN BINARY BOTH @@ -118,10 +128,9 @@ my %reserved = map { $_, 1 } qw[ UNION UNIQUE USER USING VERBOSE WHEN WHERE ]; -my $max_id_length = 62; +# my $max_id_length = 62; my %used_identifiers = (); my %global_names; -my %unreserve; my %truncated; =pod @@ -167,268 +176,54 @@ and table_constraint is: # ------------------------------------------------------------------- sub produce { - my $translator = shift; - $DEBUG = $translator->debug; - $WARN = $translator->show_warnings; - my $no_comments = $translator->no_comments; - my $add_drop_table = $translator->add_drop_table; - my $schema = $translator->schema; - - my $output; - $output .= header_comment unless ($no_comments); - my %used_index_names; - - my @fks; - for my $table ( $schema->get_tables ) { - my $table_name = $table->name or next; - $table_name = mk_name( $table_name, '', undef, 1 ); - my $table_name_ur = unreserve($table_name); - -print STDERR "$table_name table_name\n"; - my ( @comments, @field_defs, @sequence_defs, @constraint_defs ); - - push @comments, "--\n-- Table: $table_name_ur\n--" unless $no_comments; - - if ( $table->comments and !$no_comments ){ - my $c = "-- Comments: \n-- "; - $c .= join "\n-- ", $table->comments; - $c .= "\n--"; - push @comments, $c; - } - - # - # Fields - # - my %field_name_scope; - for my $field ( $table->get_fields ) { - my $field_name = mk_name( - $field->name, '', \%field_name_scope, 1 - ); - my $field_name_ur = unreserve( $field_name, $table_name ); - my $field_comments = $field->comments - ? "-- " . $field->comments . "\n " - : ''; - - my $field_def = $field_comments.qq["$field_name_ur"]; - - # - # Datatype - # - my @size = $field->size; - my $data_type = lc $field->data_type; - my %extra = $field->extra; - my $list = $extra{'list'} || []; - # todo deal with embedded quotes - my $commalist = join( ', ', map { qq['$_'] } @$list ); - my $seq_name; - - if ( $data_type eq 'enum' ) { - my $len = 0; - $len = ($len < length($_)) ? length($_) : $len for (@$list); - my $chk_name = mk_name( $table_name.'_'.$field_name, 'chk' ); - push @constraint_defs, - qq[Constraint "$chk_name" CHECK ("$field_name" ]. - qq[IN ($commalist))]; - $data_type = 'character varying'; - } - elsif ( $data_type eq 'set' ) { - $data_type = 'character varying'; - } - elsif ( $field->is_auto_increment ) { - if ( defined $size[0] && $size[0] > 11 ) { - $data_type = 'bigserial'; - } - else { - $data_type = 'serial'; - } - undef @size; - } - else { - $data_type = defined $translate{ $data_type } ? - $translate{ $data_type } : - $data_type; - } - - if ( $data_type =~ /timestamp/i ) { - if ( defined $size[0] && $size[0] > 6 ) { - $size[0] = 6; - } - } - - if ( $data_type eq 'integer' ) { - if ( defined $size[0] ) { - if ( $size[0] > 10 ) { - $data_type = 'bigint'; - } - elsif ( $size[0] < 5 ) { - $data_type = 'smallint'; - } - else { - $data_type = 'integer'; - } - } - else { - $data_type = 'integer'; - } - } - - # - # PG doesn't need a size for integers or text - # - undef @size if $data_type =~ m/(integer|smallint|bigint|text)/; - - $field_def .= " $data_type"; - - if ( defined $size[0] && $size[0] > 0 ) { - $field_def .= '(' . join( ',', @size ) . ')'; - } - - # - # Default value -- disallow for timestamps - # - my $default = $data_type =~ /(timestamp|date)/i - ? undef : $field->default_value; - if ( defined $default ) { - $field_def .= sprintf( ' DEFAULT %s', - ( $field->is_auto_increment && $seq_name ) - ? qq[nextval('"$seq_name"'::text)] : - ( $default =~ m/null/i ) ? 'NULL' : "'$default'" - ); - } - - # - # Not null constraint - # - $field_def .= ' NOT NULL' unless $field->is_nullable; - - push @field_defs, $field_def; - } - - # - # Index Declarations - # - my @index_defs = (); - my $idx_name_default; - for my $index ( $table->get_indices ) { - my $name = $index->name || ''; - if ( $name ) { - $name = next_unused_name($name, \%used_index_names); - $used_index_names{$name} = $name; - } - - my $type = $index->type || NORMAL; - my @fields = - map { $_ =~ s/\(.+\)//; $_ } - map { unreserve( $_, $table_name ) } - $index->fields; - next unless @fields; - - my $def_start = qq[Constraint "$name" ]; - if ( $type eq PRIMARY_KEY ) { - push @constraint_defs, "${def_start}PRIMARY KEY ". - '("' . join( '", "', @fields ) . '")'; - } - elsif ( $type eq UNIQUE ) { - push @constraint_defs, "${def_start}UNIQUE " . - '("' . join( '", "', @fields ) . '")'; - } - elsif ( $type eq NORMAL ) { - push @index_defs, - 'CREATE INDEX "' . $name . "\" on $table_name_ur (". - join( ', ', map { qq["$_"] } @fields ). - ');' - ; - } - else { - warn "Unknown index type ($type) on table $table_name.\n" - if $WARN; - } - } - - # - # Table constraints - # - my $c_name_default; - for my $c ( $table->get_constraints ) { - my $name = $c->name || ''; - if ( $name ) { - $name = next_unused_name($name, \%used_index_names); - $used_index_names{$name} = $name; - } - - my @fields = - map { $_ =~ s/\(.+\)//; $_ } - map { unreserve( $_, $table_name ) } - $c->fields; - - my @rfields = - map { $_ =~ s/\(.+\)//; $_ } - map { unreserve( $_, $table_name ) } - $c->reference_fields; - - next if !@fields && $c->type ne CHECK_C; - - my $def_start = $name ? qq[Constraint "$name" ] : ''; - if ( $c->type eq PRIMARY_KEY ) { - push @constraint_defs, "${def_start}PRIMARY KEY ". - '("' . join( '", "', @fields ) . '")'; - } - elsif ( $c->type eq UNIQUE ) { - $name = next_unused_name($name, \%used_index_names); - $used_index_names{$name} = $name; - push @constraint_defs, "${def_start}UNIQUE " . - '("' . join( '", "', @fields ) . '")'; - } - elsif ( $c->type eq CHECK_C ) { - my $expression = $c->expression; - push @constraint_defs, "${def_start}CHECK ($expression)"; - } - elsif ( $c->type eq FOREIGN_KEY ) { - my $def .= "ALTER TABLE $table_name ADD FOREIGN KEY (" . - join( ', ', map { qq["$_"] } @fields ) . ')' . - "\n REFERENCES " . $c->reference_table; - - if ( @rfields ) { - $def .= ' ("' . join( '", "', @rfields ) . '")'; - } - - if ( $c->match_type ) { - $def .= ' MATCH ' . - ( $c->match_type =~ /full/i ) ? 'FULL' : 'PARTIAL'; - } - - if ( $c->on_delete ) { - $def .= ' ON DELETE '.join( ' ', $c->on_delete ); - } + my $translator = shift; + local $DEBUG = $translator->debug; + local $WARN = $translator->show_warnings; + my $no_comments = $translator->no_comments; + my $add_drop_table = $translator->add_drop_table; + my $schema = $translator->schema; + my $pargs = $translator->producer_args; + my $postgres_version = parse_dbms_version( + $pargs->{postgres_version}, 'perl' + ); + + my $qt = $translator->quote_table_names ? q{"} : q{}; + my $qf = $translator->quote_field_names ? q{"} : q{}; + + my @output; + push @output, header_comment unless ($no_comments); - if ( $c->on_update ) { - $def .= ' ON UPDATE '.join( ' ', $c->on_update ); - } + my (@table_defs, @fks); + my %type_defs; + for my $table ( $schema->get_tables ) { - push @fks, "$def;"; - } - } + my ($table_def, $fks) = create_table($table, { + quote_table_names => $qt, + quote_field_names => $qf, + no_comments => $no_comments, + postgres_version => $postgres_version, + add_drop_table => $add_drop_table, + type_defs => \%type_defs, + }); + + push @table_defs, $table_def; + push @fks, @$fks; + } - 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_defs, @constraint_defs ). - "\n);" - ; - - $output .= join( "\n\n", - @comments, - @sequence_defs, - $create_statement, - @index_defs, - '' - ); + for my $view ( $schema->get_views ) { + push @table_defs, create_view($view, { + add_drop_view => $add_drop_table, + quote_table_names => $qt, + quote_field_names => $qf, + no_comments => $no_comments, + }); } + push @output, map { "$_;\n\n" } values %type_defs; + push @output, map { "$_;\n\n" } @table_defs; if ( @fks ) { - $output .= "--\n-- Foreign Key Definitions\n--\n\n" unless $no_comments; - $output .= join( "\n\n", @fks ); + push @output, "--\n-- Foreign Key Definitions\n--\n\n" unless $no_comments; + push @output, map { "$_;\n\n" } @fks; } if ( $WARN ) { @@ -436,15 +231,11 @@ print STDERR "$table_name table_name\n"; 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; + return wantarray + ? @output + : join ('', @output); } # ------------------------------------------------------------------- @@ -454,6 +245,7 @@ sub mk_name { my $scope = shift || ''; my $critical = shift || ''; my $basename_orig = $basename; +# my $max_id_length = 62; my $max_name = $type ? $max_id_length - (length($type) + 1) : $max_id_length; @@ -486,45 +278,708 @@ sub mk_name { } # ------------------------------------------------------------------- -sub unreserve { - my $name = shift || ''; - my $schema_obj_name = shift || ''; +sub next_unused_name { + my $orig_name = shift or return; + my $name = $orig_name; + + my $suffix_gen = sub { + my $suffix = 0; + return ++$suffix ? '' : $suffix; + }; + + for (;;) { + $name = $orig_name . $suffix_gen->(); + last if $used_names{ $name }++; + } + + return $name; +} + +sub is_geometry +{ + my $field = shift; + return 1 if $field->data_type eq 'geometry'; +} + +sub is_geography +{ + my $field = shift; + return 1 if $field->data_type eq 'geography'; +} + +sub create_table +{ + my ($table, $options) = @_; + + my $qt = $options->{quote_table_names} || ''; + my $qf = $options->{quote_field_names} || ''; + my $no_comments = $options->{no_comments} || 0; + my $add_drop_table = $options->{add_drop_table} || 0; + my $postgres_version = $options->{postgres_version} || 0; + my $type_defs = $options->{type_defs} || {}; + + my $table_name = $table->name or next; + my ( $fql_tbl_name ) = ( $table_name =~ s/\W(.*)$// ) ? $1 : q{}; + my $table_name_ur = $qt ? $table_name + : $fql_tbl_name ? join('.', $table_name, $fql_tbl_name) + : $table_name; + $table->name($table_name_ur); + +# print STDERR "$table_name table_name\n"; + my ( @comments, @field_defs, @sequence_defs, @constraint_defs, @fks ); + + push @comments, "--\n-- Table: $table_name_ur\n--\n" unless $no_comments; + + if ( $table->comments and !$no_comments ){ + my $c = "-- Comments: \n-- "; + $c .= join "\n-- ", $table->comments; + $c .= "\n--\n"; + push @comments, $c; + } + + # + # Fields + # + my %field_name_scope; + for my $field ( $table->get_fields ) { + push @field_defs, create_field($field, { quote_table_names => $qt, + quote_field_names => $qf, + table_name => $table_name_ur, + postgres_version => $postgres_version, + type_defs => $type_defs, + constraint_defs => \@constraint_defs,}); + } + + # + # Index Declarations + # + my @index_defs = (); + # my $idx_name_default; + for my $index ( $table->get_indices ) { + my ($idef, $constraints) = create_index($index, + { + quote_field_names => $qf, + quote_table_names => $qt, + table_name => $table_name, + }); + $idef and push @index_defs, $idef; + push @constraint_defs, @$constraints; + } + + # + # Table constraints + # + my $c_name_default; + for my $c ( $table->get_constraints ) { + my ($cdefs, $fks) = create_constraint($c, + { + quote_field_names => $qf, + quote_table_names => $qt, + table_name => $table_name, + }); + push @constraint_defs, @$cdefs; + push @fks, @$fks; + } + - my ( $suffix ) = ( $name =~ s/(\W.*)$// ) ? $1 : ''; + my $temporary = ""; - # also trap fields that don't begin with a letter - return $name if !$reserved{ uc $name } && $name =~ /^[a-z]/i; + if(exists $table->{extra}{temporary}) { + $temporary = $table->{extra}{temporary} ? "TEMPORARY " : ""; + } - if ( $schema_obj_name ) { - ++$unreserve{"$schema_obj_name.$name"}; + my $create_statement; + $create_statement = join("\n", @comments); + if ($add_drop_table) { + if ($postgres_version >= 8.002) { + $create_statement .= qq[DROP TABLE IF EXISTS $qt$table_name_ur$qt CASCADE;\n]; + } else { + $create_statement .= qq[DROP TABLE $qt$table_name_ur$qt CASCADE;\n]; + } + } + $create_statement .= qq[CREATE ${temporary}TABLE $qt$table_name_ur$qt (\n]. + join( ",\n", map { " $_" } @field_defs, @constraint_defs ). + "\n)" + ; + $create_statement .= @index_defs ? ';' : q{}; + $create_statement .= ( $create_statement =~ /;$/ ? "\n" : q{} ) + . join(";\n", @index_defs); + + # + # Geometry + # + if(grep { is_geometry($_) } $table->get_fields){ + $create_statement .= ";"; + my @geometry_columns; + foreach my $col ($table->get_fields) { push(@geometry_columns,$col) if is_geometry($col); } + $create_statement .= "\n".join("\n", map{ drop_geometry_column($_) } @geometry_columns) if $options->{add_drop_table}; + $create_statement .= "\n".join("\n", map{ add_geometry_column($_) } @geometry_columns); + } + + return $create_statement, \@fks; +} + +sub create_view { + my ($view, $options) = @_; + my $qt = $options->{quote_table_names} || ''; + my $qf = $options->{quote_field_names} || ''; + my $add_drop_view = $options->{add_drop_view}; + + my $view_name = $view->name; + debug("PKG: Looking at view '${view_name}'\n"); + + my $create = ''; + $create .= "--\n-- View: ${qt}${view_name}${qt}\n--\n" + unless $options->{no_comments}; + $create .= "DROP VIEW ${qt}${view_name}${qt};\n" if $add_drop_view; + $create .= 'CREATE'; + + my $extra = $view->extra; + $create .= " TEMPORARY" if exists($extra->{temporary}) && $extra->{temporary}; + $create .= " VIEW ${qt}${view_name}${qt}"; + + if ( my @fields = $view->fields ) { + my $field_list = join ', ', map { "${qf}${_}${qf}" } @fields; + $create .= " ( ${field_list} )"; + } + + if ( my $sql = $view->sql ) { + $create .= " AS\n ${sql}\n"; + } + + if ( $extra->{check_option} ) { + $create .= ' WITH ' . uc $extra->{check_option} . ' CHECK OPTION'; + } + + return $create; +} + +{ + + my %field_name_scope; + + sub create_field + { + my ($field, $options) = @_; + + my $qt = $options->{quote_table_names} || ''; + my $qf = $options->{quote_field_names} || ''; + my $table_name = $field->table->name; + my $constraint_defs = $options->{constraint_defs} || []; + my $postgres_version = $options->{postgres_version} || 0; + my $type_defs = $options->{type_defs} || {}; + + $field_name_scope{$table_name} ||= {}; + my $field_name = $field->name; + my $field_comments = $field->comments + ? "-- " . $field->comments . "\n " + : ''; + + my $field_def = $field_comments.qq[$qf$field_name$qf]; + + # + # Datatype + # + my @size = $field->size; + my $data_type = lc $field->data_type; + my %extra = $field->extra; + my $list = $extra{'list'} || []; + # todo deal with embedded quotes + my $commalist = join( ', ', map { qq['$_'] } @$list ); + + if ($postgres_version >= 8.003 && $field->data_type eq 'enum') { + my $type_name = $extra{'custom_type_name'} || $field->table->name . '_' . $field->name . '_type'; + $field_def .= ' '. $type_name; + my $new_type_def = "DROP TYPE IF EXISTS $type_name CASCADE;\n" . + "CREATE TYPE $type_name AS ENUM ($commalist)"; + if (! exists $type_defs->{$type_name} ) { + $type_defs->{$type_name} = $new_type_def; + } elsif ( $type_defs->{$type_name} ne $new_type_def ) { + die "Attempted to redefine type name '$type_name' as a different type.\n"; + } + } else { + $field_def .= ' '. convert_datatype($field); + } + + # + # Default value + # + SQL::Translator::Producer->_apply_default_value( + $field, + \$field_def, + [ + 'NULL' => \'NULL', + 'now()' => 'now()', + 'CURRENT_TIMESTAMP' => 'CURRENT_TIMESTAMP', + ], + ); + + # + # Not null constraint + # + $field_def .= ' NOT NULL' unless $field->is_nullable; + + # + # Geometry constraints + # + if(is_geometry($field)){ + foreach ( create_geometry_constraints($field) ) { + my ($cdefs, $fks) = create_constraint($_, + { + quote_field_names => $qf, + quote_table_names => $qt, + table_name => $table_name, + }); + push @$constraint_defs, @$cdefs; + push @$fks, @$fks; + } + } + + return $field_def; + } +} + +sub create_geometry_constraints{ + my $field = shift; + + my @constraints; + push @constraints, SQL::Translator::Schema::Constraint->new( + name => "enforce_dims_".$field->name, + expression => "(ST_NDims($field) = ".$field->{extra}{dimensions}.")", + table => $field->table, + type => CHECK_C, + ); + + push @constraints, SQL::Translator::Schema::Constraint->new( + name => "enforce_srid_".$field->name, + expression => "(ST_SRID($field) = ".$field->{extra}{srid}.")", + table => $field->table, + type => CHECK_C, + ); + push @constraints, SQL::Translator::Schema::Constraint->new( + name => "enforce_geotype_".$field->name, + expression => "(GeometryType($field) = '".$field->{extra}{geometry_type}."'::text OR $field IS NULL)", + table => $field->table, + type => CHECK_C, + ); + + return @constraints; +} + +sub create_index +{ + my ($index, $options) = @_; + + my $qt = $options->{quote_table_names} ||''; + my $qf = $options->{quote_field_names} ||''; + my $table_name = $index->table->name; + + my ($index_def, @constraint_defs); + + my $name = next_unused_name( + $index->name + || join('_', $table_name, 'idx', ++$index_name{ $table_name }) + ); + + my $type = $index->type || NORMAL; + my @fields = $index->fields; + next unless @fields; + + my $def_start = qq[CONSTRAINT ${qf}$name${qf} ]; + my $field_names = '(' . join(", ", (map { $_ =~ /\(.*\)/ ? $_ : ($qf . $_ . $qf ) } @fields)) . ')'; + if ( $type eq PRIMARY_KEY ) { + push @constraint_defs, "${def_start}PRIMARY KEY ".$field_names; + } + elsif ( $type eq UNIQUE ) { + push @constraint_defs, "${def_start}UNIQUE " .$field_names; + } + elsif ( $type eq NORMAL ) { + $index_def = + "CREATE INDEX ${qf}${name}${qf} on ${qt}${table_name}${qt} ".$field_names + ; } else { - ++$unreserve{"$name (table name)"}; + warn "Unknown index type ($type) on table $table_name.\n" + if $WARN; } - my $unreserve = sprintf '%s_', $name; - return $unreserve.$suffix; + return $index_def, \@constraint_defs; } -# ------------------------------------------------------------------- -sub next_unused_name { - my $name = shift || ''; - my $used_names = shift || ''; +sub create_constraint +{ + my ($c, $options) = @_; + + my $qf = $options->{quote_field_names} ||''; + my $qt = $options->{quote_table_names} ||''; + my $table_name = $c->table->name; + my (@constraint_defs, @fks); + + my $name = $c->name || ''; + if ( $name ) { + $name = next_unused_name($name); + } + + my @fields = grep { defined } $c->fields; + + my @rfields = grep { defined } $c->reference_fields; + + next if !@fields && $c->type ne CHECK_C; + my $def_start = $name ? qq[CONSTRAINT ${qf}$name${qf} ] : ''; + my $field_names = '(' . join(", ", (map { $_ =~ /\(.*\)/ ? $_ : ($qf . $_ . $qf ) } @fields)) . ')'; + if ( $c->type eq PRIMARY_KEY ) { + push @constraint_defs, "${def_start}PRIMARY KEY ".$field_names; + } + elsif ( $c->type eq UNIQUE ) { + push @constraint_defs, "${def_start}UNIQUE " .$field_names; + } + elsif ( $c->type eq CHECK_C ) { + my $expression = $c->expression; + push @constraint_defs, "${def_start}CHECK ($expression)"; + } + elsif ( $c->type eq FOREIGN_KEY ) { + my $def .= "ALTER TABLE ${qt}${table_name}${qt} ADD FOREIGN KEY " . $field_names . + "\n REFERENCES " . $qt . $c->reference_table . $qt; + + if ( @rfields ) { + $def .= ' ('.$qf . join( $qf.', '.$qf, @rfields ) . $qf.')'; + } + + if ( $c->match_type ) { + $def .= ' MATCH ' . + ( $c->match_type =~ /full/i ) ? 'FULL' : 'PARTIAL'; + } + + if ( $c->on_delete ) { + $def .= ' ON DELETE '.join( ' ', $c->on_delete ); + } + + if ( $c->on_update ) { + $def .= ' ON UPDATE '.join( ' ', $c->on_update ); + } + + if ( $c->deferrable ) { + $def .= ' DEFERRABLE'; + } + + push @fks, "$def"; + } + + return \@constraint_defs, \@fks; +} + +sub convert_datatype +{ + my ($field) = @_; + + my @size = $field->size; + my $data_type = lc $field->data_type; + my $array = $data_type =~ s/\[\]$//; + + if ( $data_type eq 'enum' ) { +# my $len = 0; +# $len = ($len < length($_)) ? length($_) : $len for (@$list); +# my $chk_name = mk_name( $table_name.'_'.$field_name, 'chk' ); +# push @$constraint_defs, +# qq[CONSTRAINT "$chk_name" CHECK ($qf$field_name$qf ]. +# qq[IN ($commalist))]; + $data_type = 'character varying'; + } + elsif ( $data_type eq 'set' ) { + $data_type = 'character varying'; + } + elsif ( $field->is_auto_increment ) { + if ( defined $size[0] && $size[0] > 11 ) { + $data_type = 'bigserial'; + } + else { + $data_type = 'serial'; + } + undef @size; + } + else { + $data_type = defined $translate{ $data_type } ? + $translate{ $data_type } : + $data_type; + } + + if ( $data_type =~ /^time/i || $data_type =~ /^interval/i ) { + if ( defined $size[0] && $size[0] > 6 ) { + $size[0] = 6; + } + } + + if ( $data_type eq 'integer' ) { + if ( defined $size[0] && $size[0] > 0) { + if ( $size[0] > 10 ) { + $data_type = 'bigint'; + } + elsif ( $size[0] < 5 ) { + $data_type = 'smallint'; + } + else { + $data_type = 'integer'; + } + } + else { + $data_type = 'integer'; + } + } + + my $type_with_size = join('|', + 'bit', 'varbit', 'character', 'bit varying', 'character varying', + 'time', 'timestamp', 'interval', 'numeric' + ); - my %used_names = %$used_names; + if ( $data_type !~ /$type_with_size/ ) { + @size = (); + } - if ( !defined($used_names{$name}) ) { - $used_names{$name} = $name; - return $name; + if (defined $size[0] && $size[0] > 0 && $data_type =~ /^time/i ) { + $data_type =~ s/^(time.*?)( with.*)?$/$1($size[0])/; + $data_type .= $2 if(defined $2); + } elsif ( defined $size[0] && $size[0] > 0 ) { + $data_type .= '(' . join( ',', @size ) . ')'; + } + if($array) + { + $data_type .= '[]'; } + + # + # Geography + # + if($data_type eq 'geography'){ + $data_type .= '('.$field->{extra}{geography_type}.','. $field->{extra}{srid} .')' + } + + return $data_type; +} + + +sub alter_field +{ + my ($from_field, $to_field) = @_; + + die "Can't alter field in another table" + if($from_field->table->name ne $to_field->table->name); + + my @out; + + # drop geometry column and constraints + push @out, drop_geometry_column($from_field) if is_geometry($from_field); + push @out, drop_geometry_constraints($from_field) if is_geometry($from_field); - my $i = 2; - while ( defined($used_names{$name . $i}) ) { - ++$i; + push @out, sprintf('ALTER TABLE %s ALTER COLUMN %s SET NOT NULL', + $to_field->table->name, + $to_field->name) if(!$to_field->is_nullable and + $from_field->is_nullable); + + push @out, sprintf('ALTER TABLE %s ALTER COLUMN %s DROP NOT NULL', + $to_field->table->name, + $to_field->name) + if ( !$from_field->is_nullable and $to_field->is_nullable ); + + + my $from_dt = convert_datatype($from_field); + my $to_dt = convert_datatype($to_field); + push @out, sprintf('ALTER TABLE %s ALTER COLUMN %s TYPE %s', + $to_field->table->name, + $to_field->name, + $to_dt) if($to_dt ne $from_dt); + + push @out, sprintf('ALTER TABLE %s RENAME COLUMN %s TO %s', + $to_field->table->name, + $from_field->name, + $to_field->name) if($from_field->name ne $to_field->name); + + my $old_default = $from_field->default_value; + my $new_default = $to_field->default_value; + my $default_value = $to_field->default_value; + + # fixes bug where output like this was created: + # ALTER TABLE users ALTER COLUMN column SET DEFAULT ThisIsUnescaped; + if(ref $default_value eq "SCALAR" ) { + $default_value = $$default_value; + } elsif( defined $default_value && $to_dt =~ /^(character|text)/xsmi ) { + $default_value =~ s/'/''/xsmg; + $default_value = q(') . $default_value . q('); } - $name .= $i; - $used_names{$name} = $name; - return $name; + + push @out, sprintf('ALTER TABLE %s ALTER COLUMN %s SET DEFAULT %s', + $to_field->table->name, + $to_field->name, + $default_value) + if ( defined $new_default && + (!defined $old_default || $old_default ne $new_default) ); + + # fixes bug where removing the DEFAULT statement of a column + # would result in no change + + push @out, sprintf('ALTER TABLE %s ALTER COLUMN %s DROP DEFAULT', + $to_field->table->name, + $to_field->name) + if ( !defined $new_default && defined $old_default ); + + # add geometry column and contraints + push @out, add_geometry_column($to_field) if is_geometry($to_field); + push @out, add_geometry_constraints($to_field) if is_geometry($to_field); + + return wantarray ? @out : join("\n", @out); +} + +sub rename_field { alter_field(@_) } + +sub add_field +{ + my ($new_field) = @_; + + my $out = sprintf('ALTER TABLE %s ADD COLUMN %s', + $new_field->table->name, + create_field($new_field)); + $out .= "\n".add_geometry_column($new_field) if is_geometry($new_field); + $out .= "\n".add_geometry_constraints($new_field) if is_geometry($new_field); + return $out; + +} + +sub drop_field +{ + my ($old_field) = @_; + + my $out = sprintf('ALTER TABLE %s DROP COLUMN %s', + $old_field->table->name, + $old_field->name); + $out .= "\n".drop_geometry_column($old_field) if is_geometry($old_field); + return $out; +} + +sub add_geometry_column{ + my ($field,$options) = @_; + + my $out = sprintf("INSERT INTO geometry_columns VALUES ('%s','%s','%s','%s','%s','%s','%s')", + '', + $field->table->schema->name, + $options->{table} ? $options->{table} : $field->table->name, + $field->name, + $field->{extra}{dimensions}, + $field->{extra}{srid}, + $field->{extra}{geometry_type}); + return $out; +} + +sub drop_geometry_column +{ + my $field = shift; + + my $out = sprintf("DELETE FROM geometry_columns WHERE f_table_schema = '%s' AND f_table_name = '%s' AND f_geometry_column = '%s'", + $field->table->schema->name, + $field->table->name, + $field->name); + return $out; +} + +sub add_geometry_constraints{ + my $field = shift; + + my @constraints = create_geometry_constraints($field); + + my $out = join("\n", map { alter_create_constraint($_); } @constraints); + + return $out; +} + +sub drop_geometry_constraints{ + my $field = shift; + + my @constraints = create_geometry_constraints($field); + + my $out = join("\n", map { alter_drop_constraint($_); } @constraints); + + return $out; +} + +sub alter_table { + my ($to_table, $options) = @_; + my $qt = $options->{quote_table_names} || ''; + my $out = sprintf('ALTER TABLE %s %s', + $qt . $to_table->name . $qt, + $options->{alter_table_action}); + $out .= "\n".$options->{geometry_changes} if $options->{geometry_changes}; + return $out; +} + +sub rename_table { + my ($old_table, $new_table, $options) = @_; + my $qt = $options->{quote_table_names} || ''; + $options->{alter_table_action} = "RENAME TO $qt$new_table$qt"; + + my @geometry_changes; + push @geometry_changes, map { drop_geometry_column($_); } grep { is_geometry($_) } $old_table->get_fields; + push @geometry_changes, map { add_geometry_column($_, { table => $new_table }); } grep { is_geometry($_) } $old_table->get_fields; + + $options->{geometry_changes} = join ("\n",@geometry_changes) if scalar(@geometry_changes); + + return alter_table($old_table, $options); +} + +sub alter_create_index { + my ($index, $options) = @_; + my $qt = $options->{quote_table_names} || ''; + my $qf = $options->{quote_field_names} || ''; + my ($idef, $constraints) = create_index($index, { + quote_field_names => $qf, + quote_table_names => $qt, + table_name => $index->table->name, + }); + return $index->type eq NORMAL ? $idef + : sprintf('ALTER TABLE %s ADD %s', + $qt . $index->table->name . $qt, + join(q{}, @$constraints) + ); +} + +sub alter_drop_index { + my ($index, $options) = @_; + my $index_name = $index->name; + return "DROP INDEX $index_name"; +} + +sub alter_drop_constraint { + my ($c, $options) = @_; + my $qt = $options->{quote_table_names} || ''; + my $qc = $options->{quote_field_names} || ''; + my $out = sprintf('ALTER TABLE %s DROP CONSTRAINT %s', + $qt . $c->table->name . $qt, + $qc . $c->name . $qc ); + return $out; +} + +sub alter_create_constraint { + my ($index, $options) = @_; + my $qt = $options->{quote_table_names} || ''; + my ($defs, $fks) = create_constraint(@_); + + # return if there are no constraint definitions so we don't run + # into output like this: + # ALTER TABLE users ADD ; + + return unless(@{$defs} || @{$fks}); + return $index->type eq FOREIGN_KEY ? join(q{}, @{$fks}) + : join( ' ', 'ALTER TABLE', $qt.$index->table->name.$qt, + 'ADD', join(q{}, @{$defs}, @{$fks}) + ); +} + +sub drop_table { + my ($table, $options) = @_; + my $qt = $options->{quote_table_names} || ''; + my $out = "DROP TABLE $qt$table$qt CASCADE"; + + my @geometry_drops = map { drop_geometry_column($_); } grep { is_geometry($_) } $table->get_fields; + + $out .= "\n".join("\n",@geometry_drops) if scalar(@geometry_drops); + return $out; } 1; @@ -543,6 +998,6 @@ SQL::Translator, SQL::Translator::Producer::Oracle. =head1 AUTHOR -Ken Y. Clark Ekclark@cpan.orgE. +Ken Youens-Clark Ekclark@cpan.orgE. =cut