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https://issues.apache.org/jira/browse/AVRO-1848?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ryan Blue updated AVRO-1848:
----------------------------
Assignee: Brian McKelvey
> Can't use null or false defaults in Ruby
> ----------------------------------------
>
> Key: AVRO-1848
> URL: https://issues.apache.org/jira/browse/AVRO-1848
> Project: Avro
> Issue Type: Bug
> Components: ruby
> Affects Versions: 1.8.0
> Environment: Any
> Reporter: Brian McKelvey
> Assignee: Brian McKelvey
> Priority: Critical
> Labels: easyfix
> Fix For: 1.8.2
>
> Original Estimate: 2h
> Remaining Estimate: 2h
>
> When calling {{to_avro}} on an {{Avro::Schema::Field}} instance (part of
> calling {{to_avro}} on an instance of {{Avro::Schema::RecordSchema}}), it
> will not include the default value definition if the default value is falsey.
> The offending code is:
> {code:ruby}
> def to_avro(names=Set.new)
> {'name' => name, 'type' => type.to_avro(names)}.tap do |avro|
> avro['default'] = default if default
> avro['order'] = order if order
> end
> end
> {code}
> Using the {{if default}} conditional predicate here is inappropriate, as is
> relying on {{nil}} values to represent no default, because {{null}} in JSON
> maps to {{nil}} in Ruby.
> This is a critical show-stopper to using AvroTurf with the Confluent Schema
> Registry because it is quietly uploading incorrect schemas, causing
> downstream readers to behave incorrectly and also causing the schema registry
> to reject new schema versions as incompatible when they are actually just
> fine if the falsey default values are included when submitting the schema to
> the registry.
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