I was just googling to see if there was any information on presenting numeric fields with leading zeros, but have found no discussion either here or in the wiki. In my app, I would like to display leading zeros on id fields that are used as external user references. eg. customer.id or order.id etc - both in forms and in table/text entries. To give a fixed sized number eg. 5 digits. Does anyone have any clever solutions. One way to do it would be to use a method call such as: pad(ref_id,5) etc. The other approach is to put an entry in the model to provide the ref_id as a padded string. def p_ref_id length=id.to_s.length padded_id=''0'' * (5-length) + id.to_s unless length>5 end I am using MySQL which allows id fields to be zero filled, but this doesnt seem to help, and also there is the lpad(id,0,5) function, but I am not sure it would make sense to try and use this from within rails. I just wondered if there is anything already built into rails that I am overlooking, or if there is a better approach - Any thoughts? Tony --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---
Just noticed my timebomb in the padding method. It should be:
def p_ref_id
length=id.to_s.length
if length > 4 then
id.to_s
else
padded_id=''0'' * (5-length) + id.to_s
endif
end
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tonypm wrote:> I was just googling to see if there was any information on presenting > numeric fields with leading zeros, but have found no discussion either > here or in the wiki.I just use string formatting - e.g. "%05d" % an_int if an_int = 123 it will give you the string "00123" Cheers Ian -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---
Thanks that helps. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---
tonypm wrote:> Thanks that helps.I can use it, but I have just realised I dont really know how it works! I have been looking at % in ruby but cannot relate it to this solution?. I would really appreciate a pointer. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---
On 9/22/06, tonypm <tonypmartin-PkbjNfxxIARBDgjK7y7TUQ@public.gmane.org> wrote:> > > tonypm wrote: > > Thanks that helps. > > I can use it, but I have just realised I dont really know how it works! > I have been looking at % in ruby but cannot relate it to this > solution?. I would really appreciate a pointer. > > > >Hi Tony, The documentation is here; http://www.ruby-doc.org/core/classes/String.html#M001446 http://www.ruby-doc.org/core/classes/Kernel.html#M002001 Cheers, Dave --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---