Question

In a ruby on rails app, I build an array of Project Names and project id values, but want to truncate the length of the names. Current code is:

names  = active_projects.collect {|proj| [proj.name, proj.id]}

I have tried to add a truncate function to the block, but am getting undefined method for class error.

Thanks in advance – I just cannot wrap my head around this yet.

Answer 1

Assuming I understood the question properly:

max_length = 10 # this is the length after which we will truncate
names = active_projects.map { |project|
  name = project.name.to_s[0..max_length] # I am calling #to_s because the question didn't specify if project.name is a String or not
  name << "…" if project.name.to_s.length > max_length # add an ellipsis if we truncated the name
  id = project.id
  [name, id]
}