gistfile1.rb

def get_coordinates
  if @branch.present?
    @show_cities = Purchase.where(:branch = @branch)
    @show_sale_points = Purchase.find(:all, :select => "DISTINCT sale_point")
    @show_all_blanches = Purchase.find(:all, :select => "DISTINCT branch")
    @show_sale_points = Purchase.where(:city => @city, :branch => @branch) if @city.present?
    if @city.present? && @sales_point.present?
      coordinates = Purchase.where(:city => @city, :branch => @branch, :sale_point => @sale_point)
      @latitude = coordinates.first.latitude
      @longitude = coordinates.first.longitude
    end
  end
end