SQL::Translator::Filter::Globals(3pm)			User Contributed Perl Documentation		     SQL::Translator::Filter::Globals(3pm)

NAME

       SQL::Translator::Filter::Globals - Add global fields and indices to all tables.

SYNOPSIS

	 # e.g. Add timestamp field to all tables.
	 use SQL::Translator;

	 my $sqlt = SQL::Translator->new(
	     from => 'MySQL',
	     to   => 'MySQL',
	     filters => [
	       Globals => {
		   fields => [
		       {
			   name => 'modified'
			   data_type => 'TIMESTAMP'
		       }
		   ],
		   indices => [
		       {
			   fields => 'modifed',
		       },
		   ]
		   constraints => [
		       {
		       }
		   ]
	       },
	     ],
	 ) || die "SQLFairy error : ".SQL::Translator->error;
	 my $sql = $sqlt->translate || die "SQLFairy error : ".$sqlt->error;

DESCRIPTION

       Adds global fields, indices and constraints to all tables in the schema.  The globals to add can either be defined in the filter args or
       using a _GLOBAL_ table (see below).

       If a table already contains a field with the same name as a global then it is skipped for that table.

   The _GLOBAL_ Table
       An alternative to using the args is to add a table called "_GLOBAL_" to the schema and then just use the filter. Any fields and indices
       defined on this table will be added to all the tables in the schema and the _GLOBAL_ table removed.

       The name of the global can be changed using a "global_table" arg to the filter.

SEE ALSO

       perl(1), SQL::Translator

BUGS

       Will generate duplicate indices if an index already exists on a table the same as one added globally.

       Will generate duplicate constraints if a constraint already exists on a table the same as one added globally.

TODO

       Some extra data values that can be used to control the global addition. e.g.  'skip_global'.

AUTHOR

       Mark Addison <grommit@users.sourceforge.net>

perl v5.14.2							    2012-01-18				     SQL::Translator::Filter::Globals(3pm)