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Mar 18, 2023
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Update data_transformers.rst #18076

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4 changes: 2 additions & 2 deletions form/data_transformers.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -78,11 +78,11 @@ class::

$builder->get('tags')
->addModelTransformer(new CallbackTransformer(
function ($tagsAsArray) {
function ($tagsAsArray): string {
// transform the array to a string
return implode(', ', $tagsAsArray);
},
function ($tagsAsString) {
function ($tagsAsString): array {
// transform the string back to an array
return explode(', ', $tagsAsString);
}
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