useMeta.js
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/** | |
* WordPress dependencies. | |
*/ | |
import { useDispatch, useSelect } from '@wordpress/data'; | |
/** | |
* useMeta Hook. | |
* | |
* useMeta hook to get/update WordPress' meta fields. | |
* | |
* Meta field needs to be registered to REST using `register_post_meta` function. | |
* | |
* This will return an array of all the meta fields and you return an object of meta values. | |
* const [ metaValue, changeMetaValue ] = useMeta(); | |
* | |
* If you want to get/change a particular meta field then you can pass the key as argument. | |
* const [ metaValue, changeMetaValue ] = useMeta( 'meta_key' ); | |
* | |
* @see https://developer.wordpress.org/reference/functions/register_post_meta/ | |
* @author Hardeep Asrani <hardeepasrani@gmail.com> | |
* @version 1.0 | |
* | |
*/ | |
const useMeta = key => { | |
const metaValue = useSelect( select => { | |
const { getEditedPostAttribute } = select( 'core/editor' ); | |
if ( undefined === key ) { | |
return getEditedPostAttribute( 'meta' ); | |
} | |
return getEditedPostAttribute( 'meta' )[ key ] || ''; | |
}, [ key ]); | |
const { editPost } = useDispatch( 'core/editor' ); | |
const changeMetaValue = value => { | |
if ( undefined === key ) { | |
return editPost({ | |
meta: { ...value } | |
}); | |
} | |
return editPost({ | |
meta: { | |
[ key ]: value | |
} | |
}); | |
}; | |
return [ metaValue, changeMetaValue ]; | |
}; |
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