123 lines
2.8 KiB
TypeScript
123 lines
2.8 KiB
TypeScript
import type { TPaginationQuery } from './pagination'
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import { z } from 'zod'
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import { isEqual } from '../utils'
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import { Pagination, paginationQuerySchema } from './pagination'
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import { bFieldsSchema, cFieldsSchema, fieldSchema } from '../forms'
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export const querySchema = cFieldsSchema
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.pick({ q: true })
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.extend(paginationQuerySchema.shape)
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.extend({
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sort: fieldSchema(bFieldsSchema.string.min(1).max(64), {
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label: 'Сортировка'
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})
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})
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.partial()
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.describe('Параметры базового запроса')
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export type TQuery = z.infer<typeof querySchema>
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/**
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* Класс для работы с запросами (для удобства).
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*/
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export type TFindFilter<T extends TQuery> = {
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obj?: Omit<T, 'page' | 'limit' | 'sort'>
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pagination?: TPaginationQuery
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sort?: string
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}
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/**
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* Класс для работы с запросами (для удобства).
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*/
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export class FindFilter<T extends TQuery> implements TFindFilter<T> {
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obj?: Omit<T, 'page' | 'limit' | 'sort'>
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pagination?: TPaginationQuery
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sort?: string
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static getQuery<T extends TQuery>(filter: TFindFilter<T>): T {
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return Object.assign(
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{ ...filter.obj, ...filter.pagination },
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{ sort: filter.sort }
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) as T
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}
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static parse<T extends TQuery>(filter: TFindFilter<T>): FindFilter<T> {
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return new FindFilter<T>(this.getQuery(filter))
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}
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constructor(query?: T) {
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// Copy fiends.
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let queryCopy: T = Object.assign({}, query)
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// Pagination.
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this.pagination = new Pagination(queryCopy).getQuery()
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// Delete pagination fields.
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if (this.pagination as TPaginationQuery) {
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const paginationKeys = Object.keys(this.pagination) as [keyof T]
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for (const key of paginationKeys) {
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if (queryCopy[key]) delete queryCopy[key]
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}
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}
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// Sort.
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if (queryCopy.sort) {
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this.sort = queryCopy.sort
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delete queryCopy.sort
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}
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// Obj.
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this.obj = queryCopy
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}
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/**
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* @deprecated.
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*/
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setPagination(pagination?: TPaginationQuery) {
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this.pagination = new Pagination(pagination).getQuery()
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}
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toObject(): TFindFilter<T> {
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return {
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obj: this.obj,
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pagination: this.pagination,
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sort: this.sort
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}
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}
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toString(opt?: { base?: string }): string {
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let url = opt?.base?.replace(/[?]$/, '') || ''
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const query: string[] = []
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// Params and Pagination.
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for (const [key, val] of Object.entries({
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...this.obj,
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...this.pagination
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})) {
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if (val) {
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const keyEncode = encodeURIComponent(key)
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const valEncode = encodeURIComponent(val)
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query.push(keyEncode + '=' + valEncode)
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}
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}
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// Sort.
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if (this.sort) {
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try {
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query.push('sort=' + encodeURIComponent(this.sort))
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} catch (e) {}
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}
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if (query.length) {
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url += '?' + query.join('&')
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}
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return url
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}
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isEqual(filters: TFindFilter<T>[]) {
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return isEqual([this, ...filters])
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}
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}
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