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# TODO can be optimized to use custom class and `model_ids` method | |
module SortPhotos | |
def sort_photos!(ids) | |
raise ArgumentError, "ids isn't an array" if !ids.is_a?(Array) | |
ids.map!(&:to_i) | |
old_ids = self.photo_ids | |
ids = ids - (ids - old_ids) | |
raise ArgumentError, "Not all the ids were passed to sort! method" if old_ids.size != ids.size | |
reflections[:photos].klass.update_all(['position = FIND_IN_SET(id, ?)', ids.join(',')], {:id => ids}) | |
end | |
end |
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