ra-core/dist/controller/list/queryReducer.js

Core components of react-admin, a frontend Framework for building admin applications on top of REST services, using ES6, React

import set from 'lodash/set.js';
import removeEmpty from "../../util/removeEmpty.js";
import removeKey from "../../util/removeKey.js";
export const SET_SORT = 'SET_SORT';
export const SORT_ASC = 'ASC';
export const SORT_DESC = 'DESC';
export const SET_PAGE = 'SET_PAGE';
export const SET_PER_PAGE = 'SET_PER_PAGE';
export const SET_FILTER = 'SET_FILTER';
export const SHOW_FILTER = 'SHOW_FILTER';
export const HIDE_FILTER = 'HIDE_FILTER';
const oppositeOrder = direction => direction === SORT_DESC ? SORT_ASC : SORT_DESC;
/**
 * This reducer is for the react-router query string.
 */
export const queryReducer = (previousState, action) => {
    switch (action.type) {
        case SET_SORT:
            if (action.payload.field === previousState.sort) {
                return {
                    ...previousState,
                    order: action.payload.order ??
                        oppositeOrder(previousState.order),
                    page: 1,
                };
            }
            return {
                ...previousState,
                sort: action.payload.field,
                order: action.payload.order || SORT_ASC,
                page: 1,
            };
        case SET_PAGE:
            return { ...previousState, page: action.payload };
        case SET_PER_PAGE:
            return { ...previousState, page: 1, perPage: action.payload };
        case SET_FILTER: {
            return {
                ...previousState,
                page: 1,
                filter: action.payload.filter,
                displayedFilters: action.payload.displayedFilters
                    ? action.payload.displayedFilters
                    : previousState.displayedFilters,
            };
        }
        case SHOW_FILTER: {
            if (previousState.displayedFilters &&
                previousState.displayedFilters[action.payload.filterName]) {
                // the filter is already shown
                return previousState;
            }
            return {
                ...previousState,
                filter: typeof action.payload.defaultValue !== 'undefined'
                    ? set(previousState.filter, action.payload.filterName, action.payload.defaultValue)
                    : previousState.filter,
                // we don't use lodash.set() for displayed filters
                // to avoid problems with compound filter names (e.g. 'author.name')
                displayedFilters: {
                    ...previousState.displayedFilters,
                    [action.payload.filterName]: true,
                },
            };
        }
        case HIDE_FILTER: {
            return {
                ...previousState,
                filter: removeEmpty(removeKey(previousState.filter, action.payload)),
                // we don't use lodash.set() for displayed filters
                // to avoid problems with compound filter names (e.g. 'author.name')
                displayedFilters: previousState.displayedFilters
                    ? Object.keys(previousState.displayedFilters).reduce((filters, filter) => {
                        return filter !== action.payload
                            ? { ...filters, [filter]: true }
                            : filters;
                    }, {})
                    : previousState.displayedFilters,
            };
        }
        default:
            return previousState;
    }
};
export default queryReducer;
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