On Wed, Sep 16, 2009 at 09:47:46AM +0200, Jiří Suchomel wrote:
Hi, in administrator module I have a POST request from client that contains the information about root password and mail aliases. Sometimes I would like to pass an empty value (for mail aliases, to reset it to no alias) and to distinguish the empty value from nil (nil has a meaning do not try to save this, while empty means save empty).
Rails will not let you :-( at least for hash values. Hash#from_xml has /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/core_ext/hash/conversions.rb: # blank or nil parsed values are represented by nil elsif value.blank? || value['nil'] == 'true' nil ... "An object is blank if it‘s false, empty, or a whitespace string. For example, "", " ", nil, [], and {} are blank." http://api.rubyonrails.org/classes/Object.html#M000279 BTW, Hash#from_xml also looks if an array has a single element and unwraps it. Helpful, huh? If you cannot adapt your API to deal with this, I suggest writing (finding?) a stricter from_xml. -- Martin Vidner, YaST developer http://en.opensuse.org/User:Mvidner Kuracke oddeleni v restauraci je jako fekalni oddeleni v bazenu -- To unsubscribe, e-mail: yast-devel+unsubscribe@opensuse.org For additional commands, e-mail: yast-devel+help@opensuse.org