How about something like this:
attr_reader :size
Sizes = {:small => '5x5'
:large => '1000x1000'}
def get_preview(size)
...
...
end
def small_preview
@small ||= get_preview(Sizes[:small])
@size = Sizes[:small]
end
def large_preview
@large ||= get_preview(Sizes[:large])
@size = Sizes[:large]
end
<%= image_tag medium.small_preview, :size => medium.size %>
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