74 lines
2.8 KiB
JavaScript
74 lines
2.8 KiB
JavaScript
/**
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* External dependencies
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*/
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import { COLLECTIONS_STORE_KEY as storeKey } from '@woocommerce/block-data';
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import { useSelect } from '@wordpress/data';
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/**
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* Internal dependencies
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*/
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import { useShallowEqual } from './use-shallow-equal';
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/**
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* This is a custom hook that is wired up to the `wc/store/collections` data
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* store. Given a collections option object, this will ensure a component is
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* kept up to date with the collection matching that query in the store state.
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*
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* @param {Object} options An object declaring the various
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* collection arguments.
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* @param {string} options.namespace The namespace for the collection.
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* Example: `'/wc/blocks'`
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* @param {string} options.resourceName The name of the resource for the
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* collection. Example:
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* `'products/attributes'`
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* @param {array} options.resourceValues An array of values (in correct order)
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* that are substituted in the route
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* placeholders for the collection route.
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* Example: `[10, 20]`
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* @param {Object} options.query An object of key value pairs for the
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* query to execute on the collection
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* (optional). Example:
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* `{ order: 'ASC', order_by: 'price' }`
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*
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* @return {Object} This hook will return an object with two properties:
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* - results An array of collection items returned.
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* - isLoading A boolean indicating whether the collection is
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* loading (true) or not.
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*/
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export const useCollection = ( options ) => {
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const { namespace, resourceName, resourceValues, query } = options;
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if ( ! namespace || ! resourceName ) {
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throw new Error(
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'The options object must have valid values for the namespace and ' +
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'the modelName properties.'
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);
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}
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// ensure we feed the previous reference if it's equivalent
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const currentQuery = useShallowEqual( query );
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const currentResourceValues = useShallowEqual( resourceValues );
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const { results = [], isLoading = true } = useSelect(
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( select ) => {
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const store = select( storeKey );
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// filter out query if it is undefined.
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const args = [
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namespace,
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resourceName,
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currentQuery,
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currentResourceValues,
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].filter( ( item ) => typeof item !== 'undefined' );
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return {
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results: store.getCollection( ...args ),
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isLoading: ! store.hasFinishedResolution(
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'getCollection',
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args
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),
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};
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},
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[ namespace, resourceName, currentResourceValues, currentQuery ]
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);
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return {
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results,
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isLoading,
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};
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};
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