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Hi to all, I''d like to pass with a link to values inside some form. I''ve read in other posts that it''s possible if i include the forms inside a html <div>... So here it''s my code of the view : <div id="study"> <table> <tr><td><label for="study_titolo">Titolo di

Hi to all, i''d like to insert a validation inside my model about a mac address field. I''ve used this sintax but it''s not working. validates_format_of :mac_address, :with => /^((?:[-a-f0-9])+(?:[-a-f0-9])+(?:[-a-f0-9])+(?:[-a-f0-9])+(?:[-a-f0-9])+(?:[-a-f0-9]))$/i, :on => :create,

Dear all, I have a dataframe of names (netw), with each cell including last name and initials of an author; some cells have NA. I would like to extract only the last name from each cell; this new dataframe is calle 'res' Here is what I do: res <- data.frame(matrix(NA, nrow=dim(netw)[1], ncol=dim(netw)[2])) for (i in 1:x) { wh <- regexpr('[a-z]{3,}',

Hello, i''ve just installed lovdbyless framework package on an Ubuntu 11.10 desktop. I''m using ruby 1.8.7 and rails 2.2.2 due to compatibility problem. THe application work fine locally, i''ve installed mongrel as serverweb and as soon as i connect locally to "localhost:3000" i can see all the content properly. When i try to connect through another machine the