From: Moritz Bunkus <m.bunkus@linet-services.de>
Date: Tue, 6 Aug 2013 15:35:29 +0000 (+0200)
Subject: Template: as_list-Methode zum Forçieren vom Listenkontext
X-Git-Tag: release-3.1.0beta1~93
X-Git-Url: http://wagnertech.de/git?a=commitdiff_plain;h=1bdfacee11393f18563ccd8143a9408f07449ede;p=kivitendo-erp.git

Template: as_list-Methode zum Forçieren vom Listenkontext
---

diff --git a/SL/Template/Plugin/HTMLFixes.pm b/SL/Template/Plugin/HTMLFixes.pm
index fad69932a..ce21b5cd9 100644
--- a/SL/Template/Plugin/HTMLFixes.pm
+++ b/SL/Template/Plugin/HTMLFixes.pm
@@ -1,6 +1,7 @@
 package SL::Template::Plugin::HTMLFixes;
 
 use Template::Plugin::HTML;
+use Template::Stash;
 
 1;
 
@@ -27,3 +28,19 @@ sub url {
 }
 
 1;
+
+package Template::Stash;
+
+# A method for forcing list context. If a method uses 'wantarray' then
+# calling that method from Template will do strange stuff like chosing
+# scalar context. The most obvious offender are RDBO relationships.
+
+# Example of how NOT to test whether or not a customer has contacts:
+#   [% IF customer.contacts.size %] ...
+# Instead force list context and then test the size:
+#   [% IF customer.contacts.as_list.size %] ...
+$Template::Stash::LIST_OPS->{ as_list } = sub {
+  return ref( $_[0] ) eq 'ARRAY' ? shift : [shift];
+};
+
+1;