Retrospring/app/models/theme.rb

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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
before_save do
style = StringIO.new(render_theme_with_context(self).render)
style.class.class_eval {
attr_accessor :original_filename, :content_type
}
style.content_type = 'text/stylesheet'
style.original_filename = 'theme.css'
self.css = style
end
end