src/blocks/course-prerequisites/index.jsx
// WordPress dependencies.
import { registerBlockType } from '@wordpress/blocks';
import {
PanelBody,
Disabled,
Spinner,
} from '@wordpress/components';
import { InspectorControls, useBlockProps } from '@wordpress/block-editor';
import { __ } from '@wordpress/i18n';
import ServerSideRender from '@wordpress/server-side-render';
import { useMemo } from '@wordpress/element';
// Internal dependencies.
import blockJson from './block.json';
import Icon from './icon.jsx';
import { PostSelect, usePostOptions } from '../../../packages/components/src/post-select';
const Edit = ( props ) => {
const { attributes } = props;
const blockProps = useBlockProps();
const courseOptions = usePostOptions();
const memoizedServerSideRender = useMemo( () => {
let emptyPlaceholder = __( 'No prerequisites available for this course. This block will not be displayed.', 'lifterlms' );
if ( ! attributes.course_id && courseOptions.length > 0 ) {
emptyPlaceholder = __( 'No course selected. Please choose a Course from the block sidebar panel.', 'lifterlms' );
}
return <ServerSideRender
block={ blockJson.name }
attributes={ attributes }
LoadingResponsePlaceholder={ () =>
<Spinner />
}
ErrorResponsePlaceholder={ () =>
<p className={ 'llms-block-error' }>{ __( 'Error loading content. Please check block settings are valid. This block will not be displayed.', 'lifterlms' ) }</p>
}
EmptyResponsePlaceholder={ () =>
<p className={ 'llms-block-empty' }>{ emptyPlaceholder }</p>
}
/>;
}, [ attributes ] );
return <>
<InspectorControls>
<PanelBody
title={ __( 'Course Prerequisites Settings', 'lifterlms' ) }
>
<PostSelect { ...props } />
</PanelBody>
</InspectorControls>
<div { ...blockProps }>
<Disabled>
{ memoizedServerSideRender }
</Disabled>
</div>
</>;
};
registerBlockType( blockJson, {
icon: Icon,
edit: Edit,
} );