@creasource/reactive-idb/build/module/lib/reactive-idb-index.js

A reactive wrapper to indexedDb using Rxjs

import { map } from 'rxjs/operators';
import { wrapRequest } from './utils/wrap-request.util';
export class ReactiveIDBIndex {
    /**
     *
     * @param index
     * @param objectStore The ReactiveIDBObjectStore this index belongs to.
     */
    constructor(index, objectStore) {
        this.index = index;
        this.objectStore = objectStore;
    }
    get keyPath() {
        return this.index.keyPath;
    }
    get multiEntry() {
        return this.index.multiEntry;
    }
    /**
     * Returns the name of the index.
     */
    get name() {
        return this.index.name;
    }
    /**
     *
     */
    get unique() {
        return this.index.unique;
    }
    /**
     * Retrieves the number of records matching the given key or key range in query.
     *
     * If successful, request's result will be the count.
     */
    count$(key) {
        return wrapRequest(() => this.index.count(key));
    }
    /**
     * Retrieves the value of the first record matching the given key or key range in query.
     *
     * If successful, request's result will be the value, or undefined if there was no matching record.
     */
    get$(key) {
        return wrapRequest(() => this.index.get(key)).pipe(map((value) => value !== undefined
            ? this.objectStore.transformer.deserialize(value)
            : value));
    }
    /**
     * Retrieves the values of the records matching the given key or key range in query (up to count if given).
     *
     * If successful, request's result will be an Array of the values.
     */
    getAll$(query, count) {
        return wrapRequest(() => this.index.getAll(query, count)).pipe(map((values) => values.map((v) => this.objectStore.transformer.deserialize(v))));
    }
    /**
     * Retrieves the keys of records matching the given key or key range in query (up to count if given).
     *
     * If successful, request's result will be an Array of the keys.
     */
    getAllKeys$(query, count) {
        return wrapRequest(() => this.index.getAllKeys(query, count));
    }
    /**
     * Retrieves the key of the first record matching the given key or key range in query.
     *
     * If successful, request's result will be the key, or undefined if there was no matching record.
     */
    getKey$(key) {
        return wrapRequest(() => this.index.getKey(key));
    }
    /**
     * Opens a cursor over the records matching query, ordered by direction. If query is null, all records in index are matched.
     *
     * If successful, request's result will be an IDBCursorWithValue, or null if there were no matching records.
     */
    openCursor$(query, direction) {
        return wrapRequest(() => this.index.openCursor(query, direction), false);
    }
    /**
     * Opens a cursor with key only flag set over the records matching query, ordered by direction. If query is null, all records in index are matched.
     *
     * If successful, request's result will be an IDBCursor, or null if there were no matching records.
     */
    openKeyCursor$(query, direction) {
        return wrapRequest(() => this.index.openKeyCursor(query, direction), false);
    }
}
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