Help-Site Computer Manuals
Software
Hardware
Programming
Networking
  Algorithms & Data Structures   Programming Languages   Revision Control
  Protocols
  Cameras   Computers   Displays   Keyboards & Mice   Motherboards   Networking   Printers & Scanners   Storage
  Windows   Linux & Unix   Mac

Jifty::DBI::Collection::Union
Deal with multiple L<Jifty::DBI::Collection> result sets as one

Jifty::DBI::Collection::Union - Deal with multiple L<Jifty::DBI::Collection> result sets as one


NAME

Jifty::DBI::Collection::Union - Deal with multiple the Jifty::DBI::Collection manpage 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\n", $z->Id, $z->Subject;

  }


WARNING

This module is still experimental.


DESCRIPTION

Implements a subset of the the Jifty::DBI::Collection manpage 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 the Jifty::DBI::Collection::Union manpage object. No arguments.

add COLLECTION

Add the Jifty::DBI::Collection manpage 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'ed 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 the Jifty::DBI::Collection manpage, 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

the Jifty::DBI manpage, the Jifty::DBI::Collection manpage

Programminig
Wy
Wy
yW
Wy
Programming
Wy
Wy
Wy
Wy