@pelotech/nestjsx-crud-request/lib/request-query.builder.js

NestJS CRUD for RESTful APIs - request query builder (temporary patch)

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const nestjsx_util_1 = require("@pelotech/nestjsx-util");
const qs_1 = require("qs");
const request_query_validator_1 = require("./request-query.validator");
class RequestQueryBuilder {
    constructor() {
        this.paramNames = {};
        this.queryObject = {};
        this.setParamNames();
    }
    static setOptions(options) {
        RequestQueryBuilder._options = {
            ...RequestQueryBuilder._options,
            ...options,
            paramNamesMap: {
                ...RequestQueryBuilder._options.paramNamesMap,
                ...(options.paramNamesMap ? options.paramNamesMap : {}),
            },
        };
    }
    static getOptions() {
        return RequestQueryBuilder._options;
    }
    static create(params) {
        const qb = new RequestQueryBuilder();
        return nestjsx_util_1.isObject(params) ? qb.createFromParams(params) : qb;
    }
    get options() {
        return RequestQueryBuilder._options;
    }
    setParamNames() {
        Object.keys(RequestQueryBuilder._options.paramNamesMap).forEach((key) => {
            const name = RequestQueryBuilder._options.paramNamesMap[key];
            this.paramNames[key] = nestjsx_util_1.isString(name) ? name : name[0];
        });
    }
    query(encode = true) {
        if (this.queryObject[this.paramNames.search]) {
            this.queryObject[this.paramNames.filter] = undefined;
            this.queryObject[this.paramNames.or] = undefined;
        }
        this.queryString = qs_1.stringify(this.queryObject, { encode });
        return this.queryString;
    }
    select(fields) {
        if (nestjsx_util_1.isArrayFull(fields)) {
            request_query_validator_1.validateFields(fields);
            this.queryObject[this.paramNames.fields] = fields.join(this.options.delimStr);
        }
        return this;
    }
    search(s) {
        if (!nestjsx_util_1.isNil(s) && nestjsx_util_1.isObject(s)) {
            this.queryObject[this.paramNames.search] = JSON.stringify(s);
        }
        return this;
    }
    setFilter(f) {
        this.setCondition(f, 'filter');
        return this;
    }
    setOr(f) {
        this.setCondition(f, 'or');
        return this;
    }
    setJoin(j) {
        if (!nestjsx_util_1.isNil(j)) {
            const param = this.checkQueryObjectParam('join', []);
            this.queryObject[param] = [
                ...this.queryObject[param],
                ...(Array.isArray(j) && !nestjsx_util_1.isString(j[0])
                    ? j.map((o) => this.addJoin(o))
                    : [this.addJoin(j)]),
            ];
        }
        return this;
    }
    sortBy(s) {
        if (!nestjsx_util_1.isNil(s)) {
            const param = this.checkQueryObjectParam('sort', []);
            this.queryObject[param] = [
                ...this.queryObject[param],
                ...(Array.isArray(s) && !nestjsx_util_1.isString(s[0])
                    ? s.map((o) => this.addSortBy(o))
                    : [this.addSortBy(s)]),
            ];
        }
        return this;
    }
    setLimit(n) {
        this.setNumeric(n, 'limit');
        return this;
    }
    setOffset(n) {
        this.setNumeric(n, 'offset');
        return this;
    }
    setPage(n) {
        this.setNumeric(n, 'page');
        return this;
    }
    resetCache() {
        this.setNumeric(0, 'cache');
        return this;
    }
    cond(f, cond = 'search') {
        const filter = Array.isArray(f) ? { field: f[0], operator: f[1], value: f[2] } : f;
        request_query_validator_1.validateCondition(filter, cond);
        const d = this.options.delim;
        return (filter.field +
            d +
            filter.operator +
            (nestjsx_util_1.hasValue(filter.value) ? d + filter.value : ''));
    }
    addJoin(j) {
        const join = Array.isArray(j) ? { field: j[0], select: j[1] } : j;
        request_query_validator_1.validateJoin(join);
        const d = this.options.delim;
        const ds = this.options.delimStr;
        return join.field + (nestjsx_util_1.isArrayFull(join.select) ? d + join.select.join(ds) : '');
    }
    addSortBy(s) {
        const sort = Array.isArray(s) ? { field: s[0], order: s[1] } : s;
        request_query_validator_1.validateSort(sort);
        const ds = this.options.delimStr;
        return sort.field + ds + sort.order;
    }
    createFromParams(params) {
        this.select(params.fields);
        this.search(params.search);
        this.setFilter(params.filter);
        this.setOr(params.or);
        this.setJoin(params.join);
        this.setLimit(params.limit);
        this.setOffset(params.offset);
        this.setPage(params.page);
        this.sortBy(params.sort);
        if (params.resetCache) {
            this.resetCache();
        }
        return this;
    }
    checkQueryObjectParam(cond, defaults) {
        const param = this.paramNames[cond];
        if (nestjsx_util_1.isNil(this.queryObject[param]) && !nestjsx_util_1.isUndefined(defaults)) {
            this.queryObject[param] = defaults;
        }
        return param;
    }
    setCondition(f, cond) {
        if (!nestjsx_util_1.isNil(f)) {
            const param = this.checkQueryObjectParam(cond, []);
            this.queryObject[param] = [
                ...this.queryObject[param],
                ...(Array.isArray(f) && !nestjsx_util_1.isString(f[0])
                    ? f.map((o) => this.cond(o, cond))
                    : [this.cond(f, cond)]),
            ];
        }
    }
    setNumeric(n, cond) {
        if (!nestjsx_util_1.isNil(n)) {
            request_query_validator_1.validateNumeric(n, cond);
            this.queryObject[this.paramNames[cond]] = n;
        }
    }
}
exports.RequestQueryBuilder = RequestQueryBuilder;
RequestQueryBuilder._options = {
    delim: '||',
    delimStr: ',',
    paramNamesMap: {
        fields: ['fields', 'select'],
        search: 's',
        filter: 'filter',
        or: 'or',
        join: 'join',
        sort: 'sort',
        limit: ['limit', 'per_page'],
        offset: 'offset',
        page: 'page',
        cache: 'cache',
    },
};
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