Enum validation fails for numbers

[ksheedlo]

Prerequisites

• I have read the documentation;
• In the case of a bug report, I understand that providing a SSCCE example is tremendously useful to the maintainers.

Description

react-jsonschema-form fails validation when the schema field has enum validation and a number is selected.

Steps to Reproduce

1. Go to https://codesandbox.io/s/21j3m9m5qr
2. Select 1 from the dropdown (also works with 2 or 3)
3. Click submit

Expected behavior

The demo application should display the following content JSON in the pre tag:

{
  "count": 1
}

Actual behavior

Validation failed, and the following error message was produced.

Version

1.0.6

[LucianBuzzo]

The issue here is that the default Select widget just uses event.target.value to retrieve the selected value on change, which by default is always a string. https://github.com/mozilla-services/react-jsonschema-form/blob/master/src/components/widgets/SelectWidget.js#L32

[LucianBuzzo]

You can work around this by setting the type keyword in your schema, so that react-jsonschema-form can correctly infer the type you are expecting, for example:

const SCHEMA = {
  type: "object",
  properties: {
    count: {
      enum: [1, 2, 3],
      type: "number"
    }
  }
};

[LucianBuzzo]

I've opened a PR to infer the type from the enum if type is not present in the schema #1100

[glasserc]

As #1100 was merged and released in v1.0.7, I'm closing this. Please let me know if the problem persists.