In a model I have following validates_format_of. Is there an easy way to
DRY this up? It seems to be rather repetitive.
validates_format_of :expiration_date, :with =>
/^[0-9]{4}[-][0-9]{2}[-][0-9]{2}$/
validates_format_of :activation_date, :with =>
/^[0-9]{4}[-][0-9]{2}[-][0-9]{2}$/
validates_format_of :some_other_date, :with =>
/^[0-9]{4}[-][0-9]{2}[-][0-9]{2}$/
....
Thanks
--
Posted via http://www.ruby-forum.com/.
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Hi Jens, validates_format_of takes a regular expression as its argument:> • with - The regular expression used to validate the format with > (note: must be supplied!)... so you just assign the regular expression to a variable> date_format = /^[0-9]{4}[-][0-9]{2}[-][0-9]{2}$/... and use it in your validates_format_of calls as follows:>> validates_format_of :expiration_date, :with => date_format >> validates_format_of :activation_date, :with => date_format >> validates_format_of :some_other_date, :with => date_formatNote that class of the regexp:> ~ $ irb > >> date_format = /^[0-9]{4}[-][0-9]{2}[-][0-9]{2}$/ > => /^[0-9]{4}[-][0-9]{2}[-][0-9]{2}$/ > >> date_format.class > => Regexp > >> /^[0-9]{4}[-][0-9]{2}[-][0-9]{2}$/.class > => Regexp > >> exit > ~ $DRY is the future :-) Peter On 7 Jun 2008, at 15:59, Jens -- wrote:> > In a model I have following validates_format_of. Is there an easy > way to > DRY this up? It seems to be rather repetitive. > > > validates_format_of :expiration_date, :with => > /^[0-9]{4}[-][0-9]{2}[-][0-9]{2}$/ > validates_format_of :activation_date, :with => > /^[0-9]{4}[-][0-9]{2}[-][0-9]{2}$/ > validates_format_of :some_other_date, :with => > /^[0-9]{4}[-][0-9]{2}[-][0-9]{2}$/ > .... > > Thanks > -- > 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@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
Sigh! ... so easy! Thanks Peter for your time -- 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?hl=en -~----------~----~----~----~------~----~------~--~---
On Jun 7, 2008, at 7:59 AM, Jens -- wrote:> In a model I have following validates_format_of. Is there an easy > way to > DRY this up? It seems to be rather repetitive. > > > validates_format_of :expiration_date, :with => > /^[0-9]{4}[-][0-9]{2}[-][0-9]{2}$/ > validates_format_of :activation_date, :with => > /^[0-9]{4}[-][0-9]{2}[-][0-9]{2}$/ > validates_format_of :some_other_date, :with => > /^[0-9]{4}[-][0-9]{2}[-][0-9]{2}$/ > ....I wrote a series of custom validations that in addition to defining a number of common character patterns as named validations, it also allowed multiple fields per validation http://www.railsdev.ws/blog/11/custom-validations-in-rails/ It made a huge difference in DRYness and the amount of code needed for validations. -- def gw writes_at ''www.railsdev.ws'' end --~--~---------~--~----~------------~-------~--~----~ 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?hl=en -~----------~----~----~----~------~----~------~--~---