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81 lines
2.0 KiB
81 lines
2.0 KiB
module AvatarHelper
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AVATAR_SIZE="50x50"
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def copy_avatar(des, src)
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src_file = disk_filename(src.class,src.id)
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des_file = disk_filename(des.class,des.id)
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FileUtils.cp(src_file, des_file) if File.exist?(src_file)
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end
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def avatar_image(source, copyed=false)
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source_type = source.class
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source_id = source.id
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course = Course.find(source_id) rescue nil
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if course && copyed
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source_id = course.is_copy
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end
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File.join(relative_path, avatar_directory(source_type), source_id.to_s)
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end
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def relative_path
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"avatars" #File.join("images","avatars")
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end
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def storage_path
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File.join(Rails.root, "public", "images", relative_path)
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end
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def avatar_directory(source_type)
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"#{source_type}"
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end
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def avatar_filename(source_id,image_file)
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"#{source_id}" #<< file_extension(image_file)
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end
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def disk_filename(source_type,source_id,image_file=nil)
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File.join(storage_path,avatar_directory(source_type),avatar_filename(source_id,image_file))
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end
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def copy_course?(source_type, source_id)
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file= disk_filename(source_type, source_id)
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if source_type == Course && !File.exist?(file)
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course = Course.find(source_id) rescue nil
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if course && course.is_copy>0
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return true
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end
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end
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false
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end
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def file_extension(filename=nil)
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$1 if filename =~ %r{(\.[a-zA-Z0-9]+)$}
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end
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def get_avatar(source)
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if source.nil?
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return File.join(relative_path,'AnonymousUser','0')
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end
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if source.class && source.id && File.exist?(disk_filename(source.class,source.id))
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avatar_image(source, false)
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elsif copy_course?(source.class, source.id)
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get_avatar(Course.find(source.is_copy)) rescue nil
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else
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File.join(relative_path,avatar_directory(source.class),'0')
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end
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end
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def get_avatar?(source)
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if source && File.exist?(disk_filename(source.class,source.id))
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return true
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else
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return false
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end
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end
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end
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