47 lines
2 KiB
Ruby
47 lines
2 KiB
Ruby
module ConsistencyValidations
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# Generic checks that are run for the updates and deletes of
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# node, ways and relations. This code is here to avoid duplication,
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# and allow the extention of the checks without having to modify the
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# code in 6 places for all the updates and deletes. Some of these tests are
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# needed for creates, but are currently not run :-(
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# This will throw an exception if there is an inconsistency
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def check_consistency(old, new, user)
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if new.id != old.id or new.id.nil? or old.id.nil?
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raise OSM::APIPreconditionFailedError.new("New and old IDs don't match on #{new.class.to_s}. #{new.id} != #{old.id}.")
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elsif new.version != old.version
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raise OSM::APIVersionMismatchError.new(new.id, new.class.to_s, new.version, old.version)
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elsif new.changeset.nil?
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raise OSM::APIChangesetMissingError.new
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elsif new.changeset.user_id != user.id
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raise OSM::APIUserChangesetMismatchError.new
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elsif not new.changeset.is_open?
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raise OSM::APIChangesetAlreadyClosedError.new(new.changeset)
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end
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end
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# This is similar to above, just some validations don't apply
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def check_create_consistency(new, user)
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if new.changeset.nil?
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raise OSM::APIChangesetMissingError.new
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elsif new.changeset.user_id != user.id
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raise OSM::APIUserChangesetMismatchError.new
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elsif not new.changeset.is_open?
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raise OSM::APIChangesetAlreadyClosedError.new(new.changeset)
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end
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end
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##
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# subset of consistency checks which should be applied to almost
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# all the changeset controller's writable methods.
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def check_changeset_consistency(changeset, user)
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# check user credentials - only the user who opened a changeset
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# may alter it.
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if changeset.nil?
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raise OSM::APIChangesetMissingError.new
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elsif user.id != changeset.user_id
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raise OSM::APIUserChangesetMismatchError.new
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elsif not changeset.is_open?
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raise OSM::APIChangesetAlreadyClosedError.new(changeset)
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end
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end
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end
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