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Update handling-relations.md with an example of ReferenceArrayInput #1144

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Update handling-relations.md with an example of ReferenceArrayInput #1144

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48 changes: 48 additions & 0 deletions admin/handling-relations.md
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Original file line number Diff line number Diff line change
Expand Up @@ -326,6 +326,15 @@ const ReviewsEdit = props => (
>
<AutocompleteInput optionText="title" />
</ReferenceInput>
// or
<ReferenceInput
source="book.@id"
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I think using the format prop is clearer than having this source.

reference="books"
label="Books"
filterToQuery={searchText => ({ title: searchText })}
>
<AutocompleteInput optionText="title" />
</ReferenceInput>

<InputGuesser source="rating" />
<InputGuesser source="body" />
Expand All @@ -345,3 +354,42 @@ export default () => (
```

The autocomplete field should now work properly!

Let's say `useEmbedded` parameter is set to `true` and you have nested a nested objects array you want to use in an ReferenceArrayInput. ReferenceArrayInput expects an array of ids. In this case you have to tell it, where it finds those ids. This is done via "format"
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Suggested change
Let's say `useEmbedded` parameter is set to `true` and you have nested a nested objects array you want to use in an ReferenceArrayInput. ReferenceArrayInput expects an array of ids. In this case you have to tell it, where it finds those ids. This is done via "format"
Let's say `useEmbedded` parameter is set to `true` and you have nested an array of objects you want to use in a `ReferenceArrayInput`. `ReferenceArrayInput` expects an array of ids. In this case, you have to tell it where to find those ids. This is done by using the `format` prop.


```javascript
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Maybe it's better to add this example above than to write again the example.

import React from "react";
import {
HydraAdmin,
ResourceGuesser,
CreateGuesser,
EditGuesser,
InputGuesser
} from "@api-platform/admin";
import { ReferenceInput, AutocompleteInput } from "react-admin";

...
const BooksEdit = props => (
<EditGuesser {...props}>
...

<ReferenceArrayInput source="books" reference="books_reference" label="Books" sort={{field: 'title', order: 'ASC'}}
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Could you indent properly?

format={v => (v ? v.map(i => (i["@id"] 11? i["@id"] : i)) : [])}>
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@alanpoulain alanpoulain Jul 24, 2020 •
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Suggested change
format={v => (v ? v.map(i => (i["@id"] 11? i["@id"] : i)) : [])}>
format={v => (v ? v.map(i => (i["@id"] || i)) : [])}>

<SelectArrayInput source="title" optionText="title" optionValue="@id"/>
</ReferenceArrayInput>
...
</EditGuesser>
);

...
export default () => (
<HydraAdmin entrypoint={process.env.REACT_APP_API_ENTRYPOINT}>
<ResourceGuesser
name="books_reference"
edit={BooksEdit}
...
/>
</HydraAdmin>
);

```