class Theme < ActiveRecord::Base include ThemeHelper belongs_to :user validates_numericality_of :primary_color, :primary_text, :danger_color, :danger_text, :success_color, :success_text, :warning_color, :warning_text, :info_color, :info_text, :default_color, :default_text, :panel_color, :panel_text, :link_color, :background_color, :background_text, :background_muted, greater_than_or_equal_to: 0, less_than_or_equal_to: 0xFFFFFF, allow_nil: true, only_integer: true has_attached_file :css, use_timestamp: false validates_attachment_content_type :css, content_type: 'text/x-c' before_save do self.css = nil style = StringIO.new(render_theme_with_context(self)) style.class.class_eval { attr_accessor :original_filename, :content_type } style.content_type = 'text/x-c' style.original_filename = 'theme.css' self.css = style end end