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jifty::dbi::collection::union(3pm) [debian man page]

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)

Check Out this Related Man Page

Jifty::Param(3pm)					User Contributed Perl Documentation					 Jifty::Param(3pm)

NAME

       Jifty::Param - Parameters for Jifty actions

DESCRIPTION

       Describes a parameter to a "Jifty::Action" object.  Do not construct this by hand -- use Jifty::Param::Schema in the action package to
       declare parameters instead.

   accessors
       Although this class is not derived from Jifty::Web::Form::Field, it does share the accessors from it; see Jifty::Web::Form::Field, for the
       list of possible keys that each parameter can have.

       In addition to the list there, you may use these additional keys:

       constructor
	   A boolean which, if set, indicates that the argument must be present in the "arguments" passed to create the action, rather than being
	   expected to be set later.

	   Defaults to false.

       valid_values
	   An array reference.	Each element should be either:

	   o   A hash reference with a "display" field for the string to display for the value, and a "value" field for the value to actually send
	       to the server.

	   o   A hash reference with a "collection" field containing a Jifty::Collection, and "display_from" and "value_from" fields containing
	       the names of methods to call on each record in the collection to get "display" and "value".

	   o   A simple string, which is treated as both "display" and "value".

       available_values
	   Just like valid_values, but represents the list of suggested values, instead of the list of acceptable values.

       sort_order
	   An integer of how the parameter sorts relative to other parameters.	This is usually implicitly generated by its declaration order.

   new
       Creates a new Jifty::Param object.  Note that unlike Jifty::Web::Form::Field, the object is never magically reblessed into a subclass.
       Should only be called implicitly from a Jifty::Param::Schema declaration.

perl v5.14.2							    2010-09-25							 Jifty::Param(3pm)
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