However thank you all,
I found solution, I write few lines in posts helper and everything
works fine
module PostsHelper
def wrap(content)
content.split.map{ |s| wrap_long_string(s) }.join(' ')
end
private
def wrap_long_string(text, max_width = 30)
zero_width_space = "​"
regex = /.{1,#{max_width}}/
(text.length < max_width) ? text :
text.scan(regex).join(zero_width_space)
end
end
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