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Summary

When searching for a specific course, the search function expects the course and number to be separated. This can be seen in the regular expression for handling this case in app/controllers/search_controller.rb.

/[[:alpha:]]{2,4} \d{3}/.match(params[:query]) do |m| # search for a pattern like "CS 112"
  subj, num = m[0].split(' ') # Split the matched string into its components, ["CS", "112"]
  course = Course.find_by(subject: subj.upcase, course_number: num) # find the course
  redirect_to(course_url(course)) unless course.nil? # redirect to the course if it exists
end

Either extend this regular expression or add a new regular expression matcher to account for cases like "CS112".

Helpful Links

• Current implementation: search_controller.rb
• Ruby regular expressions guide
• Regular expression editor to test on