ArrayInput does not like primitive values

[viktor-nikolaev]

What happened instead:

Steps to reproduce:
I have this form

<ArrayInput source='configuration.xpathexpressions' label='XPath expressions'>
  <SimpleFormIterator>
    <TextInput label='XPath expression' />
  </SimpleFormIterator>
</ArrayInput>

Note - I don't have source prop in TextInput.
And here what I see in the browser

The problem is with this line:

react-admin/packages/ra-ui-materialui/src/form/SimpleFormIterator.js

Line 102 in 5d2a88d

fields.push({});

If we make it just fields.push(); everything would work as expected, even for complex objects (ie with fields with source props)

CodeSandbox

https://codesandbox.io/s/simple-cwjuz

Here is the form with array input: https://cwjuz.codesandbox.io/#/tags/5

Other information:
A question on this topic https://stackoverflow.com/questions/51468966/react-admin-array-input-with-array-of-strings-numbers

Environment

• React-admin version: ^2.9.1
• Last version that did not exhibit the issue (if applicable):
• React version: ^16.8.6

[viktor-nikolaev]

Created PR #3250

[mleczakm]

Are there any easy way to override this method ( _this.addField in SimpleFormIterator) in current implementation?

[taitems]

I'm hitting this issue now. Is there any interest in firing up the PR again, or a suitable workaround? I just want to have an array of URLs.