mojo::collection(3pm) [debian man page]

Mojo::Collection(3pm)					User Contributed Perl Documentation				     Mojo::Collection(3pm)

NAME

       Mojo::Collection - Collection

SYNOPSIS

	 # Manipulate collections
	 use Mojo::Collection;
	 my $collection = Mojo::Collection->new(qw(just works));
	 unshift @$collection, 'it';
	 $collection->map(sub { ucfirst })->each(sub {
	   my ($word, $count) = @_;
	   say "$count: $word";
	 });

	 # Use the alternative constructor
	 use Mojo::Collection 'c';
	 c(qw(a b c))->join('/')->url_escape->say;

DESCRIPTION

       Mojo::Collection is a container for collections.

FUNCTIONS

       Mojo::Collection implements the following functions.

   "c"
	 my $collection = c(1, 2, 3);

       Construct a new Mojo::Collection object.

METHODS

       Mojo::Collection implements the following methods.

   "new"
	 my $collection = Mojo::Collection->new(1, 2, 3);

       Construct a new Mojo::Collection object.

   "each"
	 my @elements = $collection->each;
	 $collection  = $collection->each(sub {...});

       Evaluate closure for each element in collection.

	 $collection->each(sub {
	   my ($e, $count) = @_;
	   say "$count: $e";
	 });

   "first"
	 my $first = $collection->first;
	 my $first = $collection->first(sub {...});

       Evaluate closure for each element in collection and return the first one for which the closure returns true.

	 my $five = $collection->first(sub { $_ == 5 });

   "grep"
	 my $new = $collection->grep(sub {...});

       Evaluate closure for each element in collection and create a new collection with all elements for which the closure returned true.

	 my $interesting = $collection->grep(sub { /mojo/i });

   "join"
	 my $stream = $collection->join("
");

       Turn collection into Mojo::ByteStream.

	 $collection->join("
")->say;

   "map"
	 my $new = $collection->map(sub {...});

       Evaluate closure for each element in collection and create a new collection from the results.

	 my $doubled = $collection->map(sub { $_ * 2 });

   "reverse"
	 my $new = $collection->reverse;

       Create a new collection with all elements in reverse order.

   "slice"
	 my $new = $collection->slice(4 .. 7);

       Create a new collection with all selected elements.

   "shuffle"
	 my $new = $collection->shuffle;

       Create a new collection with all elements in random order.

   "size"
	 my $size = $collection->size;

       Number of elements in collection.

   "sort"
	 my $new = $collection->sort;
	 my $new = $collection->sort(sub {...});

       Sort elements based on return value of closure and create a new collection from the results.

	 my $insensitive = $collection->sort(sub { uc(shift) cmp uc(shift) });

SEE ALSO

       Mojolicious, Mojolicious::Guides, <http://mojolicio.us>.

perl v5.14.2							    2012-09-05						     Mojo::Collection(3pm)

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

NAME

       Jifty::Collection - Collection of Jifty::Record objects

SYNOPSIS

	 package Foo::Model::BarCollection
	 use base qw/Jifty::Collection/;

DESCRIPTION

       This is a wrapper over Jifty::DBI::Collection that at the same time is a Jifty::Object.	To use it, subclass it.

       Alternatively, an 'anonymous' collection can be made by creating a new "Jifty::Collection" object, and calling
       "record_class('Application::Model::Foo')" or similar on it.

       In addition, each Jifty::Collection includes a Data::Page object to help with calculations related to paged data.  You should not call the
       "first_row" and "rows_per_page" methods from Jifty::DBI::Collection on a Jifty::Collection.  Instead, if you'd like to use paging, you
       should use the "set_page_info" method to set the number of records per page and first record on the current page, and you should use the
       Data::Page object returned by the "pager" method to get information related to paging.

MODEL

   pager
       Returns a Data::Page object associated with this collection.  This object defaults to 10 entries per page.  You should use only use
       Data::Page methods on this object to get information about paging, not to set it; use "set_page_info" to set paging information.

   results_are_readable
       If your results from the query are guaranteed to be readable by current_user, you can create the collection with "results_are_readable =>
       1".  This causes check_read_rights to bypass normal current_user_can checks.

   as_search_action PARAMHASH
       Returns the Jifty::Action::Record::Search action for the model associated with this collection.

       The PARAMHASH allows you to add additional parameters to pass to "new_action" in Jifty::Web.

   add_record
       If "results_are_readable" is false, only add records to the collection that we can read (by checking "check_read_rights" in Jifty::Record).
       Otherwise, make sure all records added are readable.

   implicit_clauses
       Defaults to ordering by the "id" column.

   jifty_serialize_format
       This returns an array reference of the individual records that make up this collection.

SEE ALSO

       Jifty::DBI::Collection, Jifty::Object, Jifty::Record

LICENSE

       Jifty is Copyright 2005-2010 Best Practical Solutions, LLC.  Jifty is distributed under the same terms as Perl itself.

perl v5.14.2							    2010-12-10						    Jifty::Collection(3pm)

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