Format of a string, array or hash

rubyonrails-talk
1

Hello there, I do not know if my topic is right so I'll explain the problem :

I have a Project model :

class Project < ActiveRecord::Base   has_and_belongs_to_many :services end

In my views. I would like to list the services in the title of the page.

I did : <% for service in @project.services %-><%= service.name_fr.downcase -%>, <% end -%>.

The problem is with the listing itself, it puts this : {Project.name} required {service.name1}, {service.name2}, {service.name3},.

There is a problem with the last comma. It looks awful from a web developer view.

I would like : {Project.name} required {service.name1}, {service.name2} and {service.name3}.

Notice the attribute «and» and «dot» at the end

How do you call that thing I am looking for? Is there a way to do it like the second exemple?

Thx a lot for your time and help.

Hugues

2

Something like this should work:

@project.services.collect {|service| service.name}.join(", ").gsub(/, ([A-Za-z]+)$/,' and \1.')

:: though you might need to tweak that regex, depending on what's in a service name...

HTH,

3

@project.services.collect{|s| s.name}.to_sentence

4

Sweet, didn't know that one. Let's add the period, though:

@project.services.collect{|s| s.name}.to_sentence.concat(".")

Et voila, another good day's work :slight_smile:

5

Hello Hassan and Eric, Outstanding! Thanks a lot, It works perfectly.

Hugues