my ( %field_name_scope, @field_comments );
for my $field ( $table->get_fields ) {
- #
- # Field name
- #
- my $field_name = mk_name(
- $field->name, '', \%field_name_scope, 1
- );
- my $field_name_ur = unreserve( $field_name, $table_name );
- my $field_def = $field_name_ur;
- $field->name( $field_name_ur );
-
- #
- # Datatype
- #
- my $check;
- my $data_type = lc $field->data_type;
- my @size = $field->size;
- my %extra = $field->extra;
- my $list = $extra{'list'} || [];
- # \todo deal with embedded quotes
- my $commalist = join( ', ', map { qq['$_'] } @$list );
-
- if ( $data_type eq 'enum' ) {
- $check = "CHECK ($field_name_ur IN ($commalist))";
- $data_type = 'varchar2';
- }
- elsif ( $data_type eq 'set' ) {
- # XXX add a CHECK constraint maybe
- # (trickier and slower, than enum :)
- $data_type = 'varchar2';
- }
- else {
- $data_type = defined $translate{ $data_type } ?
- $translate{ $data_type } :
- $data_type;
- $data_type ||= 'varchar2';
- }
-
- #
- # Fixes ORA-02329: column of datatype LOB cannot be
- # unique or a primary key
- #
- if ( $data_type eq 'clob' && $field->is_primary_key ) {
- $data_type = 'varchar2';
- $size[0] = 4000;
- warn "CLOB cannot be a primary key, changing to VARCHAR2\n"
- if $WARN;
- }
-
- if ( $data_type eq 'clob' && $field->is_unique ) {
- $data_type = 'varchar2';
- $size[0] = 4000;
- warn "CLOB cannot be a unique key, changing to VARCHAR2\n"
- if $WARN;
- }
-
- #
- # Fixes ORA-00907: missing right parenthesis
- #
- if ( $data_type =~ /(date|clob)/i ) {
- undef @size;
- }
-
- $field_def .= " $data_type";
- if ( defined $size[0] && $size[0] > 0 ) {
- $field_def .= '(' . join( ', ', @size ) . ')';
- }
-
- #
- # Default value
- #
- my $default = $field->default_value;
- if ( defined $default ) {
- #
- # Wherein we try to catch a string being used as
- # a default value for a numerical field. If "true/false,"
- # then sub "1/0," otherwise just test the truthity of the
- # argument and use that (naive?).
- #
- if (
- $data_type =~ /^number$/i &&
- $default !~ /^-?\d+$/ &&
- $default !~ m/null/i
- ) {
- if ( $default =~ /^true$/i ) {
- $default = "'1'";
- }
- elsif ( $default =~ /^false$/i ) {
- $default = "'0'";
- }
- else {
- $default = $default ? "'1'" : "'0'";
- }
- }
- elsif (
- $data_type =~ /date/ && (
- $default eq 'current_timestamp'
- ||
- $default eq 'now()'
- )
- ) {
- $default = 'SYSDATE';
- }
- else {
- $default = $default =~ m/null/i ? 'NULL' : "'$default'"
- }
-
- $field_def .= " DEFAULT $default",
- }
-
- #
- # Not null constraint
- #
- unless ( $field->is_nullable ) {
- $field_def .= ' NOT NULL';
- }
-
- $field_def .= " $check" if $check;
-
- #
- # Auto_increment
- #
- if ( $field->is_auto_increment ) {
- my $base_name = $table_name_ur . "_". $field_name;
- my $seq_name = mk_name( $base_name, 'sq' );
- my $trigger_name = mk_name( $base_name, 'ai' );
-
- push @create, qq[DROP SEQUENCE $seq_name;] if $options->{add_drop_table};
- push @create, "CREATE SEQUENCE $seq_name;";
- push @trigger_defs,
- "CREATE OR REPLACE TRIGGER $trigger_name\n" .
- "BEFORE INSERT ON $table_name_ur\n" .
- "FOR EACH ROW WHEN (\n" .
- " new.$field_name_ur IS NULL".
- " OR new.$field_name_ur = 0\n".
- ")\n".
- "BEGIN\n" .
- " SELECT $seq_name.nextval\n" .
- " INTO :new." . $field->name."\n" .
- " FROM dual;\n" .
- "END;\n/";
- ;
- }
-
- if ( lc $field->data_type eq 'timestamp' ) {
- my $base_name = $table_name_ur . "_". $field_name_ur;
- my $trig_name = mk_name( $base_name, 'ts' );
- push @trigger_defs,
- "CREATE OR REPLACE TRIGGER $trig_name\n".
- "BEFORE INSERT OR UPDATE ON $table_name_ur\n".
- "FOR EACH ROW WHEN (new.$field_name_ur IS NULL)\n".
- "BEGIN \n".
- " SELECT sysdate INTO :new.$field_name_ur FROM dual;\n".
- "END;\n/";
- }
-
- push @field_defs, $field_def;
-
- if ( my $comment = $field->comments ) {
- $comment =~ s/'/''/g;
- push @field_comments,
- "COMMENT ON COLUMN $table_name_ur.$field_name_ur is\n '" .
- $comment . "';" unless $options->{no_comments};
- }
+ my ($field_create, $field_defs, $trigger_defs, $field_comments) =
+ create_field($field, $options, \%field_name_scope);
+ push @create, @$field_create if ref $field_create;
+ push @field_defs, @$field_defs if ref $field_defs;
+ push @trigger_defs, @$trigger_defs if ref $trigger_defs;
+ push @field_comments, @$field_comments if ref $field_comments;
}
#
return \@create, \@fk_defs, \@trigger_defs, \@index_defs, ($options->{delay_constraints} ? \@constraint_defs : []);
}
+sub alter_field {
+ my ($from_field, $to_field, $options) = @_;
+
+ my ($field_create, $field_defs, $trigger_defs, $field_comments) =
+ create_field($to_field, $options, {});
+
+ my $table_name = $to_field->table->name;
+ my $table_name_ur = unreserve( $table_name );
+
+ return 'ALTER TABLE '.$table_name_ur.' MODIFY ( '.join('', @$field_defs).' )';
+}
+
+sub create_field {
+ my ($field, $options, $field_name_scope) = @_;
+
+ my (@create, @field_defs, @trigger_defs, @field_comments);
+
+ my $table_name = $field->table->name;
+ my $table_name_ur = unreserve( $table_name );
+
+ #
+ # Field name
+ #
+ my $field_name = mk_name(
+ $field->name, '', $field_name_scope, 1
+ );
+
+ my $field_name_ur = unreserve( $field_name, $table_name );
+ my $field_def = $field_name_ur;
+ $field->name( $field_name_ur );
+
+ #
+ # Datatype
+ #
+ my $check;
+ my $data_type = lc $field->data_type;
+ my @size = $field->size;
+ my %extra = $field->extra;
+ my $list = $extra{'list'} || [];
+ # \todo deal with embedded quotes
+ my $commalist = join( ', ', map { qq['$_'] } @$list );
+
+ if ( $data_type eq 'enum' ) {
+ $check = "CHECK ($field_name_ur IN ($commalist))";
+ $data_type = 'varchar2';
+ }
+ elsif ( $data_type eq 'set' ) {
+ # XXX add a CHECK constraint maybe
+ # (trickier and slower, than enum :)
+ $data_type = 'varchar2';
+ }
+ else {
+ $data_type = defined $translate{ $data_type } ?
+ $translate{ $data_type } :
+ $data_type;
+ $data_type ||= 'varchar2';
+ }
+
+ #
+ # Fixes ORA-02329: column of datatype LOB cannot be
+ # unique or a primary key
+ #
+ if ( $data_type eq 'clob' && $field->is_primary_key ) {
+ $data_type = 'varchar2';
+ $size[0] = 4000;
+ warn "CLOB cannot be a primary key, changing to VARCHAR2\n"
+ if $WARN;
+ }
+
+ if ( $data_type eq 'clob' && $field->is_unique ) {
+ $data_type = 'varchar2';
+ $size[0] = 4000;
+ warn "CLOB cannot be a unique key, changing to VARCHAR2\n"
+ if $WARN;
+ }
+
+ #
+ # Fixes ORA-00907: missing right parenthesis
+ #
+ if ( $data_type =~ /(date|clob)/i ) {
+ undef @size;
+ }
+
+ $field_def .= " $data_type";
+ if ( defined $size[0] && $size[0] > 0 ) {
+ $field_def .= '(' . join( ', ', @size ) . ')';
+ }
+
+ #
+ # Default value
+ #
+ my $default = $field->default_value;
+ if ( defined $default ) {
+ #
+ # Wherein we try to catch a string being used as
+ # a default value for a numerical field. If "true/false,"
+ # then sub "1/0," otherwise just test the truthity of the
+ # argument and use that (naive?).
+ #
+ if (
+ $data_type =~ /^number$/i &&
+ $default !~ /^-?\d+$/ &&
+ $default !~ m/null/i
+ ) {
+ if ( $default =~ /^true$/i ) {
+ $default = "'1'";
+ } elsif ( $default =~ /^false$/i ) {
+ $default = "'0'";
+ } else {
+ $default = $default ? "'1'" : "'0'";
+ }
+ } elsif (
+ $data_type =~ /date/ && (
+ $default eq 'current_timestamp'
+ ||
+ $default eq 'now()'
+ )
+ ) {
+ $default = 'SYSDATE';
+ } else {
+ $default = $default =~ m/null/i ? 'NULL' : "'$default'"
+ }
+
+ $field_def .= " DEFAULT $default",
+ }
+
+ #
+ # Not null constraint
+ #
+ unless ( $field->is_nullable ) {
+ $field_def .= ' NOT NULL';
+ }
+
+ $field_def .= " $check" if $check;
+
+ #
+ # Auto_increment
+ #
+ if ( $field->is_auto_increment ) {
+ my $base_name = $table_name_ur . "_". $field_name;
+ my $seq_name = mk_name( $base_name, 'sq' );
+ my $trigger_name = mk_name( $base_name, 'ai' );
+
+ push @create, qq[DROP SEQUENCE $seq_name;] if $options->{add_drop_table};
+ push @create, "CREATE SEQUENCE $seq_name;";
+ push @trigger_defs,
+ "CREATE OR REPLACE TRIGGER $trigger_name\n" .
+ "BEFORE INSERT ON $table_name_ur\n" .
+ "FOR EACH ROW WHEN (\n" .
+ " new.$field_name_ur IS NULL".
+ " OR new.$field_name_ur = 0\n".
+ ")\n".
+ "BEGIN\n" .
+ " SELECT $seq_name.nextval\n" .
+ " INTO :new." . $field->name."\n" .
+ " FROM dual;\n" .
+ "END;\n/";
+ ;
+ }
+
+ if ( lc $field->data_type eq 'timestamp' ) {
+ my $base_name = $table_name_ur . "_". $field_name_ur;
+ my $trig_name = mk_name( $base_name, 'ts' );
+ push @trigger_defs,
+ "CREATE OR REPLACE TRIGGER $trig_name\n".
+ "BEFORE INSERT OR UPDATE ON $table_name_ur\n".
+ "FOR EACH ROW WHEN (new.$field_name_ur IS NULL)\n".
+ "BEGIN \n".
+ " SELECT sysdate INTO :new.$field_name_ur FROM dual;\n".
+ "END;\n/";
+ }
+
+ push @field_defs, $field_def;
+
+ if ( my $comment = $field->comments ) {
+ $comment =~ s/'/''/g;
+ push @field_comments,
+ "COMMENT ON COLUMN $table_name_ur.$field_name_ur is\n '" .
+ $comment . "';" unless $options->{no_comments};
+ }
+
+ return \@create, \@field_defs, \@trigger_defs, \@field_comments;
+
+}
+
+
sub create_view {
my ($view) = @_;
projects / dbsrgits/SQL-Translator.git / commitdiff