Allow update operators methods to act on multiple fields

[dagolden]

It might be common to set multiple fields at once. Whether or not #1 is implemented, it might be useful to allow multiple fields to be updated at once:

$obj->update_set( field1, value1, field2, value2 );
$obj->update_set{ $hashref );

For push/add/remove, which take lists, it probably has to be a hash ref:

$obj->update_push( { field1 => [ qw/one two/ ], field2 => [ qw/three four/ ] } );

For methods that take only field names, maybe just a list is fine.

For consistency, then, maybe methods that take field and one or more values have to use hash reference form. For methods that take just a field get to take a list of one or more fields.

[toddbruner]

This would be a very useful addition. In my application, I often need to update multiple fields and am beginning to worry about the roundtrip update costs.