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[kivitendo-erp.git] / SL / DB / Helper / Presenter.pm

diff --git a/SL/DB/Helper/Presenter.pm b/SL/DB/Helper/Presenter.pm
index 4850254..1dae8cc 100644 (file)
--- a/SL/DB/Helper/Presenter.pm
+++ b/SL/DB/Helper/Presenter.pm
@@ -17,7 +17,19 @@ sub AUTOLOAD {
 
   return if $method eq 'DESTROY';
 
-  return $self->[0]->$method($self->[1], @args);
+  eval "require $self->[0]";
+
+  splice @args, -1, 1, %{ $args[-1] } if @args && (ref($args[-1]) eq 'HASH');
+
+  if (my $sub = $self->[0]->can($method)) {
+    return $sub->($self->[1], @args);
+  }
+}
+
+sub can {
+  my ($self, $method) = @_;
+  eval "require $self->[0]";
+  $self->[0]->can($method);
 }
 
 1;
@@ -32,25 +44,25 @@ SL::DB::Helper::Presenter - proxy class to allow models to access presenters
 
 =head1 SYNOPSIS
 
-  # assuming SL::Presemter::Part exists
+  # assuming SL::Presenter::Part exists
   # and contains a sub link_to($class, $object) {}
   SL::DB::Part->new(%args)->presenter->link_to
 
 =head1 DESCRIPTION
 
-When coding controller one often encounters objects that are not crucial to the
-current task, but must be presented in some form to the user. Instead of
+When coding controllers one often encounters objects that are not crucial to
+the current task, but must be presented in some form to the user. Instead of
 recreating that all the time the C<SL::Presenter> namepace was introduced to
 hold such code.
 
 Unfortunately the Presenter code is designed to be stateless and thus acts _on_
 objects, but can't be instanced or wrapped. The early band-aid to that was to
 export all sub-presenter calls into the main presenter namespace. Fixing it
-would have meant to access presenter functions like this:
+would have meant accessing presenter functions like this:
 
   SL::Presenter::Object->method($object, %additional_args)
 
-which is  extremely inconvenient.
+which is extremely inconvenient.
 
 This glue code allows C<SL::DB::Object> instances to access routines in their
 presenter without additional boilerplate. C<SL::DB::Object> contains a
@@ -59,8 +71,8 @@ class. All calls on this will then be forwarded to the appropriate presenter.
 
 =head1 INTERNAL STRUCTURE
 
-The proxy objects created are lightweight blessed arrayrefs instead of the usual blessed
-hashrefs. They only store two elements:
+The created proxy objects are lightweight blessed arrayrefs instead of the
+usual blessed hashrefs. They only store two elements:
 
 =over 4