Merge pull request #53 from swiehr/master

Error handling

Author: annikoff

lib/patches/field_format.rb

@@ -112,6 +112,8 @@ def formatted_value(view, custom_field, value, customized=nil, html=false)
           else
             value.to_s
         end
+      rescue
+        value.to_s
       end
 
       def validate_custom_field(custom_field)

lib/patches/klass.rb

@@ -29,7 +29,7 @@ def compute
                        result.to_s
                    end
           self.custom_field_values = {value.custom_field.id => result}
-        rescue StandardError => e
+        rescue StandardError, SyntaxError => e
           self.errors.add :base, l(:error_while_formula_computing,
                                    custom_field_name: value.custom_field.name,
                                    message: e.message)