Paperclip基本配置，图片的content_type是比较全了

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has_attached_file :avatar,
    :styles => { :medium => "200x200>", :thumb => "100x100>" }

validates_attachment_content_type :avatar,
    :content_type => ['image/jpg', 'image/jpeg', 'image/pjpeg', 'image/gif', 'image/png', 'image/x-png'],
    :message => "only image files are allowed"

validates_attachment_size :avatar,
    :less_than => 1.megabyte, #another option is :greater_than
    :message => "max size is 1M"

    Posted by holin At January 08, 2009 13:02

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