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group[:result].sort_by{|x,y| x.to_s.split(";")[0].split(".").map(&:to_i).each_with_index.map{|n,i| n*10**(4-i)}.inject(:+)}.each do |key, val|
    .....
end

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(object.close? || object.rejected? ? false : (object.update_time.nil? ? true : (Time.now - object.update_time) >= 1.day)) && scope.try(:profile_client) == object.owner

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m_string = ""
        for i in 0..month_arr.size - 1
          tmp = month_arr[i].to_s
          if i != month_arr.size - 1
            m_string = m_string +  tmp  + ","
          else 
            m_string = m_string +  tmp 
          end 
        end

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month_name = 0
    if item["MONTH"] == 1
      month_name = "ЯНВАРЬ"
    else
      if item["MONTH"] == 2
        month_name = "ФЕВРАЛЬ"
      else
        if item["MONTH"] == 3
          month_name = "МАРТ"
        else
          if item["MONTH"] == 4
            month_name = "АПРЕЛЬ"
          else
            if item["MONTH"] == 5
              month_name = "МАЙ"
            else
              if item["MONTH"] == 6
                month_name = "ИЮНЬ"
              else
                if item["MONTH"] == 7
                  month_name = "ИЮЛЬ"
                else
                  if item["MONTH"] == 8
                    month_name = "АВГУСТ"
                  else
                    if item["MONTH"] == 9
                      month_name = "СЕНТЯБРЬ"
                    else
                      if item["MONTH"] == 10
                        month_name = "ОКТЯБРЬ"
                      else
                        if item["MONTH"] == 11
                          month_name = "НОЯБРЬ"
                        else
                          if item["MONTH"] == 12
                            month_name = "ДЕКАБРЬ"
                          end
                        end
                      end
                    end
                  end
                end
              end
            end
          end
        end
      end
    end

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system `my-util --update util.ini`

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tpl.gsub!( '{#TITLE}', title )
tpl.gsub!( '{#DATE}', self.started_at.strftime("%d.%m.%Y %H:%M").to_s )
tpl.gsub!( '{#TABLE_HEADER}', self.result_column_names * "</td><td>" )

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def generate_activation_code(size = 6)
  charset = %w{0 1 2 3 4 5 6 7 8 9}
  (0...size).map{ charset.to_a[rand(charset.size)] }.join
end

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items.map! {|i| i.count = 0; i }

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# We have strange bug: when company's fresher salary is updated, CompanyAnnouncement.track_update
  # method is called.
  # This method helps to see, was object changed or not.
  # This is workaround. We should get rid of this method in future.

  def self.object_changed?(obj)
    # Warning: We can't have "return true if obj.changed?" here, because sometimes changed? method
    # returns true when object was not really changed.
    return false if !obj.changed?

    obj.changes.each do |k, v|
      if v[0] != v[1] && k != 'updated_at'
        return true
      end
    end
    false
  end

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<%
   def out_categories(parent, level)
     if (categ = @categories.where(parent_id: parent))
      categ.each do |cat|
%>
      <div style='margin-left:<%=level * 20%> px'><%= cat.title %></div>
<%
      level += 1
      out_categories(cat.id, level)
      level -= 1
      end
     end
   end
   out_categories(nil, 0)
%>