use MooseX::Declare;
role SQL::Translator::Producer::SQL::SQLite {
- use SQL::Translator::Constants qw(:sqlt_types);
+ use MooseX::Types::Moose qw(HashRef);
+ use SQL::Translator::Constants qw(:sqlt_types :sqlt_constants);
use SQL::Translator::Types qw(Column Table);
around _build_data_type_mapping {
return $data_type_mapping;
};
-
- method _create_table(Table $table) {
- my $sqlite_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)";
-
- print $create_table . ";\n";
- return (@create, $create_table, @index_defs, @constraint_defs );
- }
-
- method _create_column(Column $column) {
- my $size = $column->sql_data_type == SQL_TIMESTAMP() ? undef : $column->size;
- my $default_value = $column->default_value;
- $default_value =~ s/^now[()]*/CURRENT_TIMESTAMP/i if $default_value;
-
- 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;
+
+sub header_comment {
+ my $producer = shift || caller;
+ my $comment_char = shift;
+ 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;
+}
+
+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 $producer_args = $translator->producer_args;
+ my $sqlite_version = $producer_args->{sqlite_version} || 0;
+ my $no_txn = $producer_args->{no_transaction};
+
+# debug("PKG: Beginning production\n");
+
+# %global_names = (); #reset
+
+ my @create = ();
+ push @create, header_comment unless ($no_comments);
+ $create[0] .= "\n\nBEGIN TRANSACTION" unless $no_txn;
+
+ for my $table ( $schema->get_tables ) {
+ push @create, $self->create_table($table, { no_comments => $no_comments,
+ sqlite_version => $sqlite_version,
+ add_drop_table => $add_drop_table,});
+ }
+
+ for my $view ( $schema->get_views ) {
+ push @create, create_view($view, {
+ add_drop_view => $add_drop_table,
+ no_comments => $no_comments,
+ });
+ }
+
+ 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 $no_txn;
+ return join(";\n\n", @create );
+ }
+}
+
+# -------------------------------------------------------------------
+sub mk_name {
+ my ($name, $scope, $critical) = @_;
+my $max_id_length = 30;
+# $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 $name;
+}
+
+sub create_view {
+ my ($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) = @_;
+method create_table(Table $table, HashRef $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 );
+ my @fields = $table->get_fields or die "No fields in $table_name";
+
+ my $temp = $options->{temporary_table} ? 'TEMPORARY ' : '';
+ #
+ # Header.
+ #
+ 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_table .= "-- Comments: \n-- ";
+ $create_table .= join "\n-- ", $table->comments;
+ $create_table .= "\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_table .= join(",\n", map { " $_" } @field_defs ) . "\n)";
+
+ return (@create, $create_table, @index_defs, @constraint_defs );
+}
+
+sub create_field
+{
+ my ($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;
+=cut
+ if (defined $default) {
+ SQL::Translator::Producer->_apply_default_value(
+ \$field_def,
+ $default,
+ [
+ 'NULL' => \'NULL',
+ 'now()' => 'now()',
+ 'CURRENT_TIMESTAMP' => 'CURRENT_TIMESTAMP',
+ ],
+ );
+ }
+=cut
+
+ return $field_def;
+
+}
+
+sub create_index
+{
+ my ($index, $options) = @_;
+
+ my $name = $index->name;
+ $name = mk_name($name);
+
+ my $type = $index->type eq 'UNIQUE' ? "UNIQUE " : '';
+
+ # strip any field size qualifiers as SQLite doesn't like these
+ my @fields = map { s/\(\d+\)$//; $_ } $index->fields;
+ (my $index_table_name = $index->table->name) =~ s/^.+?\.//; # table name may not specify schema
+# warn "removing schema name from '" . $index->table->name . "' to make '$index_table_name'\n" if $WARN;
+ my $index_def =
+ "CREATE ${type}INDEX $name ON " . $index_table_name .
+ ' (' . join( ', ', @fields ) . ')';
+
+ return $index_def;
+}
+
+sub create_constraint
+{
+ my ($c, $options) = @_;
+
+ my $name = $c->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;
+
+ my $c_def =
+ "CREATE UNIQUE INDEX $name ON " . $index_table_name .
+ ' (' . join( ', ', @fields ) . ')';
+
+ 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,
+ $action
+ );
+ }
+
+ return @statements;
+}
+
+sub alter_table { } # Noop
+
+sub add_field {
+ my ($field) = @_;
+
+ return sprintf("ALTER TABLE %s ADD COLUMN %s",
+ $field->table->name, create_field($field))
+}
+
+sub alter_create_index {
+ my ($index) = @_;
+
+ # This might cause name collisions
+ return create_index($index);
+}
+
+sub alter_create_constraint {
+ my ($constraint) = @_;
+
+ return create_constraint($constraint) if $constraint->type eq 'UNIQUE';
+}
+
+sub alter_drop_constraint { alter_drop_index(@_) }
+
+sub alter_drop_index {
+ my ($constraint) = @_;
+
+ return sprintf("DROP INDEX %s",
+ $constraint->name);
+}
+
+sub batch_alter_table {
+ my ($table, $diffs) = @_;
+
+ # If we have any of the following
+ #
+ # rename_field
+ # alter_field
+ # drop_field
+ #
+ # we need to do the following <http://www.sqlite.org/faq.html#q11>
+ #
+ # BEGIN TRANSACTION;
+ # CREATE TEMPORARY TABLE t1_backup(a,b);
+ # INSERT INTO t1_backup SELECT a,b FROM t1;
+ # DROP TABLE t1;
+ # CREATE TABLE t1(a,b);
+ # INSERT INTO t1 SELECT a,b FROM t1_backup;
+ # DROP TABLE t1_backup;
+ # 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 {
+ return map {
+ my $meth = __PACKAGE__->can($_) or die __PACKAGE__ . " cant $_";
+ map { my $sql = $meth->(ref $_ eq 'ARRAY' ? @$_ : $_); $sql ? ("$sql") : () } @{ $diffs->{$_} }
+
+ } 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} = $table_name . '_temp_alter';
+ # We only want the table - dont care about indexes on tmp table
+ my ($table_sql) = create_table($table, {no_comments => 1, temporary_table => 1});
+ push @sql,$table_sql;
+ };
+
+ push @sql, "INSERT INTO @{[$table_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_name]} SELECT @{[ join(', ', $old_table->get_fields)]} FROM @{[$table_name]}_temp_alter",
+ "DROP TABLE @{[$table_name]}_temp_alter";
+
+ return @sql;
+# return join("", @sql, "");
+}
+
+sub drop_table {
+ my ($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 { }
}
projects / dbsrgits/SQL-Translator-2.0-ish.git / commitdiff