Module: USaidWat::Application::FilterCommand

Included in:
Log, Posts
Defined in:
lib/usaidwat/filter.rb

Instance Method Summary collapse

Instance Method Details

#ensure_entries(noun, redditor, entries) ⇒ Object 



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# File 'lib/usaidwat/filter.rb', line 41

def ensure_entries(noun, redditor, entries)
  if entries.empty?
    USaidWat::Left.new("#{redditor.username} has no #{noun}.")
  else
    USaidWat::Right.new(entries)
  end
end

#filter_entries(noun, redditor, entries, subreddits, excluded_subreddits = []) ⇒ Object 



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# File 'lib/usaidwat/filter.rb', line 6

def filter_entries(noun, redditor, entries, subreddits, excluded_subreddits = [])
  return USaidWat::Right.new(entries) if subreddits.empty? && excluded_subreddits.empty?
  entries = entries.select { |e| subreddits.include?(e.subreddit.downcase) } unless subreddits.empty?
  entries = entries.reject { |e| excluded_subreddits.include?(e.subreddit.downcase) }
  if entries.empty?
    msg = "No #{noun} by #{redditor.username}"
    msg += " for #{subreddits.join(', ')}." unless subreddits.empty?
    USaidWat::Left.new(msg)
  else
    USaidWat::Right.new(entries)
  end
end

#grep_entries(noun, redditor, entries, grep, subreddits = []) ⇒ Object 



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# File 'lib/usaidwat/filter.rb', line 19

def grep_entries(noun, redditor, entries, grep, subreddits = [])
  return USaidWat::Right.new(entries) if grep.nil?
  entries = entries.select { |e| e.body =~ /#{grep}/i }
  if entries.empty?
    msg = "#{redditor.username} has no #{noun} matching /#{grep}/"
    unless subreddits.empty?
      prefixed_subs = subreddits.map(&:prefix_subreddit)
      msg += " in " + prefixed_subs.or_join
    end
    msg += "."
    USaidWat::Left.new(msg)
  else
    USaidWat::Right.new(entries)
  end
end

#limit_entries(noun, redditor, entries, n) ⇒ Object 



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# File 'lib/usaidwat/filter.rb', line 35

def limit_entries(noun, redditor, entries, n)
  return USaidWat::Right.new(entries) if n.nil?
  entries = entries[0...n.to_i]
  USaidWat::Right.new(entries)
end