React-admin Array input with array of strings/numbers

Question

https://marmelab.com/react-admin/Inputs.html#arrayinput Examples cover cases where you have an array of objects:

  backlinks: [
        {
            date: '2012-08-10T00:00:00.000Z',
            url: 'http://example.com/foo/bar.html',
        },
        {
            date: '2012-08-14T00:00:00.000Z',
            url: 'https://blog.johndoe.com/2012/08/12/foobar.html',
        }
   ]

is it possible to have it work with just an array of strings?

backlinks: ['a', 'b', 'c']

Answer 1

I was able to execute the inputs variant, as opposed to the fields variant, by simply not providing a source attribute for the inner TextField, and sourcing the array in the actual ArrayField. Then of course just use a SimpleFormIterator. Clearly React favors the use of keys, treating array types like maps, for the most part.

<ArrayInput source="my-source">
  <SimpleFormIterator>
    <TextInput />
  </SimpleFormIterator>
</ArrayInput>

Answer 2

Here is my working code based on @fzaninotto's post in react-admin Issues:

import Chip from '@material-ui/core/Chip'

const TextArrayField = ({ record, source }) => {
  const array = record[source]
  if (typeof array === 'undefined' || array === null || array.length === 0) {
    return <div/>
  } else {
    return (
      <>
        {array.map(item => <Chip label={item} key={item}/>)}
      </>
    )    
  }
}
TextArrayField.defaultProps = { addLabel: true }

Usage:

  <TextArrayField source="tags">
    <SingleFieldList>
      <ChipField source="id" />
    </SingleFieldList>
  </TextArrayField>

Answer 3

Maybe you can create your own Field component which can able to take source and record as props.

 function populateList(numbers) {
        return numbers.map((number) =>
            <li key={number.toString()}>
                {number}
            </li>
        );
    }

    const SimpleArray = ({source, record = {}}) =>
        <ul>
            {
                populateList(record[source])
            }
        </ul>;


    SimpleArray.defaultProps = {
        addLabel: true,
        label: 'List'
     };


    SimpleArray.propTypes = {
        label: PropTypes.string,
        record: PropTypes.object,
        source: PropTypes.string
    };

    export default SimpleArray;

And easily use it inside any form element like :

  <SimpleShowLayout>
                        <TextField source="id"/>
                        <TextField label="Title" source="title" className={classes.name}/> 
                        <TextField source="title"/>
                        <NumberField source="defaultItemCount"/>
                        <RichTextField source="description"/>
                        <NumberField source="priceInNumber"/>
                        <SimpleArray source="attributeArray" label="Product Attributes" />




                    </SimpleShowLayout>