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def self.round_more(number)
  new_number = number.round
  new_number = new_number + 1 if new_number < number
  return new_number
end

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class ApplicationController < ActionController::Base
  protect_from_forgery with: :exception
  skip_before_filter :verify_authenticity_token
  protect_from_forgery unless: -> { request.format.json? }

  ...
end

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def has_children_pages(id)
  unless Page.where(:parent_id => id, :public => true).blank?      
    return true
  end      
  return false
end

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def result object, method = :save
  method = :destroy if caller[0][/`.*'/][1..-2] == 'destroy'
  if object.send method
    def object.to_json(options) ''; end
    respond_with object
  else
    raise UnprocessableEntityError.new(object.errors.full_messages.join(', '))
  end
end

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attachment.save ?
       flash[:notice] = 'Attachment was successfully created.'
     :
       flash[:alert] = 'Error saving attachment!'

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%a{href: new_user_session_path} Вход

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errors[:please] « "fill one more field"

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(Time.now.to_date-1.year .. Time.now.to_date).
map{|x|  {x.to_time.to_i =>0} }.
reduce(Hash.new, :merge).merge(
	TrackLocation.unscoped.joins(:track).where(track: @user.all_tracks).
	where("tracks.start_time < ? AND tracks.start_time > ?", Time.now.to_date, Time.now.to_date-1.year).
	group(:start_time).maximum(:distance).
	map{|x,v| {x.to_date.to_time.to_i => v.round(3)} if v}.compact.
	reduce(Hash.new, :merge)
)

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current_time = (DateTime.parse(DateTime.now.to_s)).strftime('%d.%m.%Y %H:%M:%S')

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def update
    error = false
    if params[:geografic].present? && ((params[:geografic] & IsoCountryCodes.all.map{|c|c.alpha2.downcase}) == params[:geografic])
      current_user.profile.geografic = params[:geografic]
    else
      error = true
      flash[:alert] ||= ''
      flash[:alert] << "Need select countries. "
    end
    begin
      current_user.profile.sectors_of_interests = Sector.find(params[:sectors_of_interests])
    rescue
      error = true
      flash[:alert] ||= ''
      flash[:alert] << 'Can not find sectors. '
    end
    if params[:profession_id].present? && profession = Profession.find(params[:profession_id])
      current_user.profile.update_attribute(:profession_id, params[:profession_id])
    else
      error = true
      flash[:alert] ||= ''
      flash[:alert] << 'Can not find profession. '
    end
    if ['cn', 'gb'].include?(params[:language_iso])
      current_user.profile.update_attribute(:country_iso, params[:language_iso])
    else
      error = true
      flash[:alert] ||= ''
      flash[:alert] << "Need select language. "
    end
    if params[:telephone].present?
      current_user.profile.update_attribute(:phone, params[:telephone])
    else
      error = true
      flash[:alert] ||= ''
      flash[:alert] << "Need input phone number. "
    end

    require_additional_info = (current_user.geografic.blank? || current_user.sectors_of_interests.blank? || current_user.profession.blank? || current_user.phone.blank?)
    if require_additional_info || error
      redirect_to user_path(current_user) and return
    else
      redirect_to root_path
    end
  end