use MooseX::Declare;
-role SQL::Translator::Producer::SQL::PostgreSQL {
- use SQL::Translator::Constants qw(:sqlt_types);
- use SQL::Translator::Types qw(Column Index Table);
+role SQL::Translator::Producer::SQL::PostgreSQL {
+ use SQL::Translator::Constants qw(:sqlt_types :sqlt_constants);
+ use SQL::Translator::Types qw(Column Constraint Index Table View);
+my ( %index_name );
+my $max_id_length;
+
+#BEGIN {
+
+my %translate = (
+ #
+ # MySQL types
+ #
+ bigint => 'bigint',
+ double => 'numeric',
+ decimal => 'numeric',
+ float => 'numeric',
+ int => 'integer',
+ mediumint => 'integer',
+ smallint => 'smallint',
+ tinyint => 'smallint',
+ char => 'character',
+ varchar => 'character varying',
+ longtext => 'text',
+ mediumtext => 'text',
+ text => 'text',
+ tinytext => 'text',
+ tinyblob => 'bytea',
+ blob => 'bytea',
+ mediumblob => 'bytea',
+ longblob => 'bytea',
+ enum => 'character varying',
+ set => 'character varying',
+ date => 'date',
+ datetime => 'timestamp',
+ time => 'time',
+ timestamp => 'timestamp',
+ year => 'date',
+
+ #
+ # Oracle types
+ #
+ number => 'integer',
+ char => 'character',
+ varchar2 => 'character varying',
+ long => 'text',
+ CLOB => 'bytea',
+ date => 'date',
+
+ #
+ # Sybase types
+ #
+ int => 'integer',
+ money => 'money',
+ varchar => 'character varying',
+ datetime => 'timestamp',
+ text => 'text',
+ real => 'numeric',
+ comment => 'text',
+ bit => 'bit',
+ tinyint => 'smallint',
+ float => 'numeric',
+);
+
+ $max_id_length = 62;
+#}
+my %reserved = map { $_, 1 } qw[
+ ALL ANALYSE ANALYZE AND ANY AS ASC
+ BETWEEN BINARY BOTH
+ CASE CAST CHECK COLLATE COLUMN CONSTRAINT CROSS
+ CURRENT_DATE CURRENT_TIME CURRENT_TIMESTAMP CURRENT_USER
+ DEFAULT DEFERRABLE DESC DISTINCT DO
+ ELSE END EXCEPT
+ FALSE FOR FOREIGN FREEZE FROM FULL
+ GROUP HAVING
+ ILIKE IN INITIALLY INNER INTERSECT INTO IS ISNULL
+ JOIN LEADING LEFT LIKE LIMIT
+ NATURAL NEW NOT NOTNULL NULL
+ OFF OFFSET OLD ON ONLY OR ORDER OUTER OVERLAPS
+ PRIMARY PUBLIC REFERENCES RIGHT
+ SELECT SESSION_USER SOME TABLE THEN TO TRAILING TRUE
+ UNION UNIQUE USER USING VERBOSE WHEN WHERE
+];
+
+# my $max_id_length = 62;
+my %used_names;
+my %used_identifiers = ();
+my %global_names;
+my %unreserve;
+my %truncated;
+
+# -------------------------------------------------------------------
+method produce {
+ my $translator = $self->translator;
+# 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 = $pargs->{postgres_version} || 0;
+
+ my $qt = $translator->quote_table_names ? q{"} : q{};
+ my $qf = $translator->quote_field_names ? q{"} : q{};
- method _create_table(Table $table) {
- my $pg_version = 0;
-
- my $create_table;
- my (@create, @column_defs, @index_defs, @constraint_defs);
-
- $create_table .= 'DROP TABLE ' . $table->name . ";\n" if $self->drop_table;
- $create_table .= 'CREATE TABLE ' . $table->name . " (\n";
-
- push @column_defs, $self->_create_column($_) for values %{$table->columns};
- $create_table .= join(",\n", map { ' ' . $_ } @column_defs ) . "\n)";
-
- foreach my $index (values %{$table->indexes}) {
- if ($index->type eq 'NORMAL') {
- push @index_defs, $self->_create_index($index, $table);
- } else {
- push @constraint_defs, $self->_create_index($index);
+ my @output;
+ push @output, $self->header_comment unless ($no_comments);
+
+ my (@table_defs, @fks);
+ for my $table ( $schema->get_tables ) {
+
+ my ($table_def, $fks) = $self->create_table($table, {
+ quote_table_names => $qt,
+ quote_field_names => $qf,
+ no_comments => $no_comments,
+ postgres_version => $postgres_version,
+ add_drop_table => $add_drop_table,
+ });
+
+ push @table_defs, $table_def;
+ push @fks, @$fks;
+ }
+
+ for my $view ( $schema->get_views ) {
+ push @table_defs, $self->create_view($view, {
+ add_drop_view => $add_drop_table,
+ quote_table_names => $qt,
+ quote_field_names => $qf,
+ no_comments => $no_comments,
+ });
+ }
+
+ push @output, map { "$_;\n\n" } @table_defs;
+ if ( @fks ) {
+ push @output, "--\n-- Foreign Key Definitions\n--\n\n" unless $no_comments;
+ push @output, map { "$_;\n\n" } @fks;
+ }
+
+# if ( $WARN ) {
+# if ( %truncated ) {
+# warn "Truncated " . keys( %truncated ) . " names:\n";
+# warn "\t" . join( "\n\t", sort keys %truncated ) . "\n";
+# }
+
+# if ( %unreserve ) {
+# warn "Encounted " . keys( %unreserve ) .
+# " unsafe names in schema (reserved or invalid):\n";
+# warn "\t" . join( "\n\t", sort keys %unreserve ) . "\n";
+# }
+# }
+
+ return wantarray
+ ? @output
+ : join ('', @output);
+}
+
+# -------------------------------------------------------------------
+method mk_name($basename = '', $type = '', $scope = '', $critical = '') {
+ my $basename_orig = $basename;
+# my $max_id_length = 62;
+ my $max_name = $type
+ ? $max_id_length - (length($type) + 1)
+ : $max_id_length;
+ $basename = substr( $basename, 0, $max_name )
+ if length( $basename ) > $max_name;
+ 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;
+ }
+
+ $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 ) > $max_id_length;
+
+# warn "The name '$name_orig' has been changed to ",
+# "'$name' to make it unique.\n" if $WARN;
+
+ $scope->{ $name_orig }++;
+ }
+
+ $scope->{ $name }++;
+ return $name;
+}
+
+# -------------------------------------------------------------------
+method unreserve($name = '', $schema_obj_name = '') {
+ my ( $suffix ) = ( $name =~ s/(\W.*)$// ) ? $1 : '';
+
+ # also trap fields that don't begin with a letter
+ return $name if (!$reserved{ uc $name }) && $name =~ /^[a-z]/i;
+
+ if ( $schema_obj_name ) {
+ ++$unreserve{"$schema_obj_name.$name"};
+ }
+ else {
+ ++$unreserve{"$name (table name)"};
+ }
+
+ my $unreserve = sprintf '%s_', $name;
+ return $unreserve.$suffix;
+}
+
+# -------------------------------------------------------------------
+method next_unused_name($orig_name?) {
+ return unless $orig_name;
+ 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;
+}
+
+method create_table(Table $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 $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, $self->unreserve($fql_tbl_name))
+ : $self->unreserve($table_name);
+ $table->name($table_name_ur);
+
+# print STDERR "$table_name table_name\n";
+ my ( @comments, @field_defs, @sequence_defs, @constraint_defs, @type_defs, @type_drops, @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, $self->create_field($field, { quote_table_names => $qt,
+ quote_field_names => $qf,
+ table_name => $table_name_ur,
+ postgres_version => $postgres_version,
+ type_defs => \@type_defs,
+ type_drops => \@type_drops,
+ constraint_defs => \@constraint_defs,});
+ }
+
+ #
+ # Index Declarations
+ #
+ my @index_defs = ();
+ # my $idx_name_default;
+ for my $index ( $table->get_indices ) {
+ my ($idef, $constraints) = $self->create_index($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) = $self->create_constraint($c,
+ {
+ quote_field_names => $qf,
+ quote_table_names => $qt,
+ table_name => $table_name,
+ });
+ push @constraint_defs, @$cdefs;
+ push @fks, @$fks;
+ }
+
+
+ my $temporary = "";
+
+ if(exists $table->{extra}{temporary}) {
+ $temporary = $table->{extra}{temporary} ? "TEMPORARY " : "";
+ }
+
+ my $create_statement;
+ $create_statement = join("\n", @comments);
+ if ($add_drop_table) {
+ if ($postgres_version >= 8.2) {
+ $create_statement .= qq[DROP TABLE IF EXISTS $qt$table_name_ur$qt CASCADE;\n];
+ $create_statement .= join (";\n", @type_drops) . ";\n"
+ if $postgres_version >= 8.3 && scalar @type_drops;
+ } else {
+ $create_statement .= qq[DROP TABLE $qt$table_name_ur$qt CASCADE;\n];
+ }
+ }
+ $create_statement .= join(";\n", @type_defs) . ";\n"
+ if $postgres_version >= 8.3 && scalar @type_defs;
+ $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);
+
+ return $create_statement, \@fks;
+}
+
+method create_view(View $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;
+
+ method create_field(Column $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} || [];
+ my $type_drops = $options->{type_drops} || [];
+
+ $field_name_scope{$table_name} ||= {};
+ my $field_name = $field->name;
+ my $field_name_ur = $qf ? $field_name : $self->unreserve($field_name, $table_name );
+ $field->name($field_name_ur);
+ my $field_comments = $field->comments
+ ? "-- " . $field->comments . "\n "
+ : '';
+
+ my $field_def = $field_comments.qq[$qf$field_name_ur$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 >= 8.3 && $field->data_type eq 'enum') {
+ my $type_name = $field->table->name . '_' . $field->name . '_type';
+ $field_def .= ' '. $type_name;
+ push @$type_defs, "CREATE TYPE $type_name AS ENUM ($commalist)";
+ push @$type_drops, "DROP TYPE IF EXISTS $type_name";
+ } else {
+ $field_def .= ' '. $self->convert_datatype($field);
+ }
+
+ #
+ # Default value
+ #
+ my $default = $field->default_value;
+=cut
+ if ( defined $default ) {
+ SQL::Translator::Producer->_apply_default_value(
+ \$field_def,
+ $default,
+ [
+ 'NULL' => \'NULL',
+ 'now()' => 'now()',
+ 'CURRENT_TIMESTAMP' => 'CURRENT_TIMESTAMP',
+ ],
+ );
+ }
+=cut
+
+ #
+ # Not null constraint
+ #
+ $field_def .= ' NOT NULL' unless $field->is_nullable;
+
+ return $field_def;
+ }
+}
+
+method create_index(Index $index, $options?) {
+ my $qt = $options->{quote_table_names} ||'';
+ my $qf = $options->{quote_field_names} ||'';
+ my $table_name = $index->table->name;
+# my $table_name_ur = $qt ? $self->unreserve($table_name) : $table_name;
+
+ my ($index_def, @constraint_defs);
+
+ my $name = $self->next_unused_name(
+ $index->name
+ || join('_', $table_name, 'idx', ++$index_name{ $table_name })
+ );
+
+ my $type = $index->type || NORMAL;
+ my @fields =
+ map { $_ =~ s/\(.+\)//; $_ }
+ map { $qt ? $_ : $self->unreserve($_, $table_name ) }
+ $index->fields;
+ return ('', []) unless @fields;
+
+ my $def_start = qq[CONSTRAINT "$name" ];
+ if ( $type eq PRIMARY_KEY ) {
+ push @constraint_defs, "${def_start}PRIMARY KEY ".
+ '(' .$qf . join( $qf. ', '.$qf, @fields ) . $qf . ')';
+ }
+ elsif ( $type eq UNIQUE ) {
+ push @constraint_defs, "${def_start}UNIQUE " .
+ '(' . $qf . join( $qf. ', '.$qf, @fields ) . $qf.')';
+ }
+ elsif ( $type eq NORMAL ) {
+ $index_def =
+ "CREATE INDEX ${qf}${name}${qf} on ${qt}${table_name}${qt} (".
+ join( ', ', map { qq[$qf$_$qf] } @fields ).
+ ')'
+ ;
+ }
+ else {
+# warn "Unknown index type ($type) on table $table_name.\n"
+# if $WARN;
+ }
+
+ return $index_def, \@constraint_defs;
+}
+
+method create_constraint(Constraint $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 = $self->next_unused_name($name);
+ }
+
+ my @fields =
+ map { $_ =~ s/\(.+\)//; $_ }
+ map { $qt ? $_ : $self->unreserve( $_, $table_name )}
+ $c->fields;
+
+ my @rfields =
+ map { $_ =~ s/\(.+\)//; $_ }
+ map { $qt ? $_ : $self->unreserve( $_, $table_name )}
+ $c->reference_fields;
+
+ return ([], []) 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 ".
+ '('.$qf . join( $qf.', '.$qf, @fields ) . $qf.')';
+ }
+ elsif ( $c->type eq UNIQUE ) {
+ $name = $self->next_unused_name($name);
+ push @constraint_defs, "${def_start}UNIQUE " .
+ '('.$qf . join( $qf.', '.$qf, @fields ) . $qf.')';
+ }
+ 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}${qt} ADD FOREIGN KEY (" .
+ join( ', ', map { qq[$qf$_$qf] } @fields ) . ')' .
+ "\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;
+}
+
+method convert_datatype(Column $field) {
+ my @size = $field->size;
+ my $data_type = lc $field->data_type;
+
+ 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'
+ );
+
+ if ( $data_type !~ /$type_with_size/ ) {
+ @size = ();
+ }
+
+ 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 ) . ')';
+ }
+
+ return $data_type;
+}
+
+
+method alter_field(Column $from_field, Column $to_field) {
+ die "Can't alter field in another table"
+ if($from_field->table->name ne $to_field->table->name);
+
+ my @out;
+ 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 = $self->convert_datatype($from_field);
+ my $to_dt = $self->convert_datatype($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;
- print $create_table . ";\n";
- return (@create, $create_table, @index_defs, @constraint_defs);
+ # 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(');
}
- method _create_column(Column $column) {
- my $size = $column->size;
- my $default_value = $column->default_value;
- $default_value =~ s/^CURRENT_TIMESTAMP/now()/i if $default_value;
+ 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
- my $column_def;
- $column_def = $column->name . ' ';
- $column_def .= defined $self->data_type_mapping->{$column->sql_data_type}
- ? $self->data_type_mapping->{$column->sql_data_type}
- : $column->data_type;
- $column_def .= '(' . $column->size . ')' if $size;
- $column_def .= ' NOT NULL' unless $column->is_nullable;
- $column_def .= ' PRIMARY KEY' if $column->is_auto_increment;
- $column_def .= ' DEFAULT ' . $default_value if $column->default_value && !$column->is_auto_increment;
- $column_def;
- }
+ 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 );
- method _create_index(Index $index, Table $table?) {
- my $index_def;
- if ($index->type eq 'PRIMARY_KEY') {
- $index_def = 'CONSTRAINT ' . $index->name . ' PRIMARY KEY ' . '(' . (join ', ', map { $_->name } values %{$index->columns}) . ')';
- }
- elsif ($index->type eq 'UNIQUE') {
- $index_def = 'CONSTRAINT ' . $index->name . ' UNIQUE ' . '(' . (join ', ', map { $_->name } values %{$index->columns}) . ')';
- }
- elsif ($index->type eq 'NORMAL') {
- $index_def = 'CREATE INDEX ' . $index->name . ' ON ' . $table->name . '('. (join ', ', map { $_->name } values %{$index->columns}) . ')';
- }
+
+ return wantarray ? @out : join("\n", @out);
+}
+
+method rename_field(@args) { $self->alter_field(@args) }
+
+method add_field(Column $new_field) {
+ my $out = sprintf('ALTER TABLE %s ADD COLUMN %s',
+ $new_field->table->name,
+ $self->create_field($new_field));
+ return $out;
+
+}
+
+method drop_field(Column $old_field) {
+ my $out = sprintf('ALTER TABLE %s DROP COLUMN %s',
+ $old_field->table->name,
+ $old_field->name);
+
+ return $out;
+}
+
+method alter_table(Column $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});
+ return $out;
+}
+
+method rename_table(Table $old_table, Table $new_table, $options?) {
+ my $qt = $options->{quote_table_names} || '';
+ $options->{alter_table_action} = "RENAME TO $qt$new_table$qt";
+ return alter_table($old_table, $options);
+}
+
+method alter_create_index(Index $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)
+ );
+}
+
+method alter_drop_index(Index $index, $options?) {
+ my $index_name = $index->name;
+ return "DROP INDEX $index_name";
+}
+
+method alter_drop_constraint(Constraint $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;
+}
+
+method alter_create_constraint(Index $index, $options?) {
+ my $qt = $options->{quote_table_names} || '';
+ my ($defs, $fks) = create_constraint(@_);
- $index_def;
+ # return if there are no constraint definitions so we don't run
+ # into output like this:
+ # ALTER TABLE users ADD ;
+
+ return unless(@{$defs} || @{$fks});
+ return $index->type eq FOREIGN_KEY ? join(q{}, @{$fks})
+ : join( ' ', 'ALTER TABLE', $qt.$index->table->name.$qt,
+ 'ADD', join(q{}, @{$defs}, @{$fks})
+ );
+}
+
+method drop_table(Str $table, $options?) {
+ my $qt = $options->{quote_table_names} || '';
+ return "DROP TABLE $qt$table$qt CASCADE";
+}
+
+ method header_comment($producer?, $comment_char?) {
+ $producer ||= caller;
+ my $now = scalar localtime;
+ my $DEFAULT_COMMENT = '-- ';
+
+ $comment_char = $DEFAULT_COMMENT
+ unless defined $comment_char;
+
+ my $header_comment =<<"HEADER_COMMENT";
+ ${comment_char}
+ ${comment_char}Created by $producer
+ ${comment_char}Created on $now
+ ${comment_char}
+HEADER_COMMENT
+
+ # Any additional stuff passed in
+ for my $additional_comment (@_) {
+ $header_comment .= "${comment_char}${additional_comment}\n";
+ }
+
+ return $header_comment;
}
}
projects / dbsrgits/SQL-Translator-2.0-ish.git / commitdiff