Default value doesn't work with if-else and array · rjsf-team/react-jsonschema-form#3869

2023-09-14T12:12:29.000Z

### Prerequisites - [X] I have searched the existing issues - [X] I understand that providing a [SSCCE](http://sscce.org/) example is tremendously useful to the maintainers. - [X] I have read the [documentation](https://rjsf-team.github.io/react-jsonschema-form/docs) - [X] Ideally, I'm providing a [sample JSFiddle](https://jsfiddle.net), [Codesandbox.io](https://codesandbox.io) or preferably a [shared playground link](https://rjsf-team.github.io/react-jsonschema-form/) demonstrating the issue. ### What theme are you using? core ### Version 5.6.2 ### Current Behavior If there's an object with keys "foo" and "bar" and when "foo" is true, "bar" should added with default value true. If the schema contains just this object, the default value is added. But if the object is wrapped in an array, the default is not added. ### Expected Behavior Also when the object is inside an array, the default should be added for the object. ### Steps To Reproduce Here's a schema for an object with keys "foo" and "bar" and when "foo" is true, "bar" is added with default value true. Works fine: [Link to Playground](https://rjsf-team.github.io/react-jsonschema-form/#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) Here's the same schema, but wrapped in an array. Default doesn't work. [Link to Playground](https://rjsf-team.github.io/react-jsonschema-form/#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)

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bughelp wanted

Description

Prerequisites

I have searched the existing issues
I understand that providing a SSCCE example is tremendously useful to the maintainers.
I have read the documentation
Ideally, I'm providing a sample JSFiddle, Codesandbox.io or preferably a shared playground link demonstrating the issue.

What theme are you using?

core

Version

5.6.2

Current Behavior

If there's an object with keys "foo" and "bar" and when "foo" is true, "bar" should added with default value true. If the schema contains just this object, the default value is added. But if the object is wrapped in an array, the default is not added.

Expected Behavior

Also when the object is inside an array, the default should be added for the object.

Steps To Reproduce

Here's a schema for an object with keys "foo" and "bar" and when "foo" is true, "bar" is added with default value true. Works fine: Link to Playground

Here's the same schema, but wrapped in an array. Default doesn't work. Link to Playground

Contributor guide

Tech stack: reacttypescriptjavascript
Domain: frontend
Issue type: bug
Difficulty: 3
Estimated time: half day
Activity status: stale
Clarity: clear
Prerequisites: Familiarity with JSON SchemaBasic ReactUnderstanding of react jsonschema form
Newbie friendliness: 55
Research direction: Examine the source code in `src/utils.js` or `src/components/fields/ArrayField.js` to understand how default values are applied to array items. Compare the logic for handling `allOf`/`if then else` in objects versus arrays. The provided playground links demonstrate the discrepancy: the default for 'bar' works in an object but not when wrapped in an array. Focus on the `getDefaultFormState` function and how it processes conditional schemas within array items. Check for any recent commits or comments that may indicate progress or additional context.