debian man page for jifty::dbi::collection::union

Jifty::DBI::Collection::Union(3pm)			User Contributed Perl Documentation			Jifty::DBI::Collection::Union(3pm)

NAME
       Jifty::DBI::Collection::Union - Deal with multiple Jifty::DBI::Collection result sets as one

SYNOPSIS
	 use Jifty::DBI::Collection::Union;
	 my $U = new Jifty::DBI::Collection::Union;
	 $U->add( $tickets1 );
	 $U->add( $tickets2 );

	 $U->GotoFirstItem;
	 while (my $z = $U->Next) {
	   printf "%5d %30.30s
", $z->Id, $z->Subject;
	 }

WARNING
       This module is still experimental.

DESCRIPTION
       Implements a subset of the Jifty::DBI::Collection methods, but enough to do iteration over a bunch of results.  Useful for displaying the
       results of two unrelated searches (for the same kind of objects) in a single list.

METHODS
   new
       Create a new Jifty::DBI::Collection::Union object.  No arguments.

   add COLLECTION
       Add Jifty::DBI::Collection object COLLECTION to the Union object.

       It must be the same type as the first object added.

   first
       Return the very first element of the Union (which is the first element of the first Collection).  Also reset the current pointer to that
       element.

   next
       Return the next element in the Union.

   last
       Returns the last item

   count
       Returns the total number of elements in the union collection

   goto_first_item
       Starts the recordset counter over from the first item. the next time you call "next", you'll get the first item returned by the database,
       as if you'd just started iterating through the result set.

   goto_item
       Unlike "goto_item" in Jifty::DBI::Collection, Union only supports going to the first item in the collection.

   is_last
       Returns true if the current row is the last record in the set.

   items_array_ref
       Return a reference to an array containing all objects found by this search.

       Will destroy any positional state.

AUTHOR
       Copyright (c) 2004 Robert Spier

       All rights reserved.

       This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

SEE ALSO
       Jifty::DBI, Jifty::DBI::Collection

perl v5.14.2							    2010-12-09					Jifty::DBI::Collection::Union(3pm)