ArrayField component throws exception when formData prop is null #2153
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TheRealJon
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Dec 2, 2020
In some cases, an uncaught exception could be thrown from dynamically generated array form fields. This was happening when a nested array field had an explicitly set 'null' value. This is a workaround that adds a fallback value to object and array fields to prevent this runtime error. An issue and fix have also been opened upstream in the react-jsonschema-form repo. rjsf-team/react-jsonschema-form#2153 rjsf-team/react-jsonschema-form#2154
bipuladh
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Dec 14, 2020
In some cases, an uncaught exception could be thrown from dynamically generated array form fields. This was happening when a nested array field had an explicitly set 'null' value. This is a workaround that adds a fallback value to object and array fields to prevent this runtime error. An issue and fix have also been opened upstream in the react-jsonschema-form repo. rjsf-team/react-jsonschema-form#2153 rjsf-team/react-jsonschema-form#2154
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Prerequisites
Description
When formData for an array field is malformed, a runtime error can be thrown.
Steps to Reproduce
formDatafield, enter:{ "foo": null }Expected behavior
Null value should be handled gracefully without throwing an exception
Actual behavior
An uncaught exception is thrown from ArrayField.getDerivedStateFromProps
Version
Tested on 1.7.0 and 2.4.0
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