429 lines
17 KiB
TypeScript
429 lines
17 KiB
TypeScript
import {
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IFieldConfig, IFieldTypeHandler, IShrimpQuery, IShrimpCondition, IShrimpPopulate,
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IPageQuery, IPageResult, ITableCrudProto, ILabel, ShrimpConfig, ShrimpError, ShrimpFieldTypes,
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} from "../IShrimpType"
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import { Shrimp } from "./Shrimp"
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import { ShrimpModule, IShrimpModuleOptions } from "./ShrimpModule"
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import type { ShrimpCrud } from "./ShrimpCrud"
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import type { RootShrimpPower } from "./ShrimpPower"
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/** 内置字段类型处理器 */
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export const defaultTypeHandlers: Record<string, IFieldTypeHandler> = {
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[ShrimpFieldTypes.Password]: {
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reqFilter: async (value) => {
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if (typeof value === 'string' && value.length > 0) {
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return Shrimp.passwordHasher.hash(value)
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}
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return value
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},
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resFilter: () => "***",
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},
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[ShrimpFieldTypes.Date]: {
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defaultValue: () => Date.now(),
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},
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[ShrimpFieldTypes.Number]: {
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defaultValue: 0,
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},
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[ShrimpFieldTypes.Boolean]: {
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defaultValue: false,
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},
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[ShrimpFieldTypes.Json]: {
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reqFilter: (value) => {
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if (value == null || value === "") return undefined
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if (typeof value === "string") {
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try {
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return JSON.parse(value)
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} catch {
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throw new ShrimpError({ t: 'shrimp.invalidJson' })
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}
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}
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return value
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},
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resFilter: (value) => {
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if (value == null) return value
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if (typeof value === "object") {
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return JSON.stringify(value)
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}
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return value
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},
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},
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[ShrimpFieldTypes.Tab]: {
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reqFilter: (value) => {
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if (value == null || value === "") return undefined
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if (typeof value === "string") {
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try {
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return JSON.parse(value)
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} catch {
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throw new ShrimpError({ t: 'shrimp.invalidJson' })
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}
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}
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return value
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},
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resFilter: (value) => {
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if (value == null) return value
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if (typeof value === "object") {
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return JSON.stringify(value)
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}
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return value
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},
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},
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}
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export class ShrimpTableModule<T, P extends ITableCrudProto<T> = ITableCrudProto<T>> extends ShrimpModule<P> implements ITableCrudProto<T> {
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fields: IFieldConfig[] = []
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constructor(public parent: Shrimp | ShrimpModule, moduleKey: string, public dataSource: ShrimpCrud<T>, fields?: IFieldConfig[], label?: ILabel, power?: RootShrimpPower, options?: IShrimpModuleOptions) {
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super(parent, moduleKey, label || { t: moduleKey }, power, options)
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if (fields) {
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this.fields = fields
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}
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this.root.crudRegistry.set(moduleKey, dataSource)
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}
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getFields(): IFieldConfig[] {
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return this.fields
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}
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static typeHandlers: Map<string, IFieldTypeHandler> = new Map(Object.entries(defaultTypeHandlers))
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static registerTypeHandler(type: string, handler: IFieldTypeHandler) {
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this.typeHandlers.set(type, handler)
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}
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private getTypeHandler(field: IFieldConfig): IFieldTypeHandler | undefined {
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return ShrimpTableModule.typeHandlers.get(field.type)
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}
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/** 前置验证 */
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private async validateField(field: IFieldConfig, value: any, item: Record<string, any>): Promise<ILabel | null> {
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const isEmpty = value === undefined || value === null || value === '' || (Array.isArray(value) && value.length === 0)
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if (field.required && isEmpty) {
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return field.rules?.find(r => r.required)?.message || { t: 'shrimp.fieldRequired', params: { field: field.label } }
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}
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if (isEmpty) return null
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if (Array.isArray(field.options)) {
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const validValues = new Set(field.options.map(o => o.value))
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const values = field.multiple && Array.isArray(value) ? value : [value]
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for (const v of values) {
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if (!validValues.has(v)) {
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return field.rules?.find(r => r.message)?.message || { t: 'shrimp.fieldInvalid', params: { field: field.label } }
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}
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}
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}
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// multiple 字段值是数组，类型校验需逐元素进行（与上面 options 校验保持一致）；
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// 非 multiple 则整体校验单值。否则数组会被标量类型分支整体判为类型错误。
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const checkType = (v: any): boolean => {
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switch (field.type) {
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case ShrimpFieldTypes.String: return typeof v === 'string'
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case ShrimpFieldTypes.Number: return typeof v === 'number' && !Number.isNaN(v)
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case ShrimpFieldTypes.Boolean: return typeof v === 'boolean'
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case ShrimpFieldTypes.Date: return typeof v === 'number' || v instanceof Date || !isNaN(Date.parse(v))
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default: return true // 非内置标量类型（relation/json/自定义等）不在此校验
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}
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}
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const typeTargets = field.multiple && Array.isArray(value) ? value : [value]
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for (const v of typeTargets) {
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if (!checkType(v)) return { t: 'shrimp.fieldTypeError', params: { field: field.label } }
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}
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if (field.rules) {
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for (const rule of field.rules) {
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const msg = rule.message || { t: 'shrimp.fieldInvalid', params: { field: field.label } }
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if (rule.min !== undefined) {
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if (typeof value === 'number' && value < rule.min) return { t: 'shrimp.fieldMin', params: { field: field.label, min: rule.min } }
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if (typeof value === 'string' && value.length < rule.min) return { t: 'shrimp.fieldMinLength', params: { field: field.label, min: rule.min } }
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if (Array.isArray(value) && value.length < rule.min) return { t: 'shrimp.fieldMinLength', params: { field: field.label, min: rule.min } }
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}
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if (rule.max !== undefined) {
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if (typeof value === 'number' && value > rule.max) return { t: 'shrimp.fieldMax', params: { field: field.label, max: rule.max } }
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if (typeof value === 'string' && value.length > rule.max) return { t: 'shrimp.fieldMaxLength', params: { field: field.label, max: rule.max } }
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if (Array.isArray(value) && value.length > rule.max) return { t: 'shrimp.fieldMaxLength', params: { field: field.label, max: rule.max } }
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}
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if (rule.pattern) {
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const regex = new RegExp(rule.pattern)
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if (!regex.test(String(value))) return msg
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}
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}
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}
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return null
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}
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private async prepareAddItem(item: Record<string, any>): Promise<Record<string, any>> {
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const result = { ...item }
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for (const field of this.fields) {
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if (field.editable === "readonly") {
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delete result[field.key]
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continue
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}
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const handler = this.getTypeHandler(field)
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if (result[field.key] === undefined) {
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const dv = field.defaultValue !== undefined ? field.defaultValue : handler?.defaultValue
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if (dv !== undefined) {
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result[field.key] = typeof dv === 'function' ? (dv as () => any)() : dv
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}
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}
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if (handler?.reqFilter && result[field.key] !== undefined) {
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result[field.key] = await handler.reqFilter(result[field.key], field, result)
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}
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const fieldErr = await this.validateField(field, result[field.key], result)
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if (fieldErr) throw new ShrimpError(fieldErr)
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if (handler?.validate && result[field.key] !== undefined) {
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const err = await handler.validate(result[field.key], field, result)
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if (err) throw new ShrimpError(err)
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}
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}
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return result
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}
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private async prepareEditItem(item: Record<string, any>): Promise<Record<string, any>> {
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const result = { ...item }
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for (const field of this.fields) {
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if (field.editable === "readonly" || field.editable === "addOnly") {
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delete result[field.key]
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continue
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}
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if (result[field.key] === undefined) {
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delete result[field.key]
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continue
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}
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const handler = this.getTypeHandler(field)
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if (handler?.reqFilter) {
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result[field.key] = await handler.reqFilter(result[field.key], field, result)
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}
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const fieldErr = await this.validateField(field, result[field.key], result)
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if (fieldErr) throw new ShrimpError(fieldErr)
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if (handler?.validate) {
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const err = await handler.validate(result[field.key], field, result)
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if (err) throw new ShrimpError(err)
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}
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}
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return result
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}
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private async processResItem(item: Record<string, any>): Promise<Record<string, any>> {
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const result = { ...item }
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for (const field of this.fields) {
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const handler = this.getTypeHandler(field)
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if (handler?.resFilter && result[field.key] !== undefined) {
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result[field.key] = await handler.resFilter(result[field.key], field, result)
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}
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}
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return result
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}
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private async prepareResponseItems(items: any[]): Promise<any[]> {
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if (items.length === 0) return items
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const populates = this.getRelationPopulates()
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if (populates.length > 0 && this.dataSource.populateItems) {
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await this.dataSource.populateItems(items, populates, this.root.crudRegistry)
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}
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return Promise.all(items.map(item => this.processResItem(item)))
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}
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private async prepareResponseItem(item: any): Promise<any> {
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if (!item) return item
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const populates = this.getRelationPopulates()
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if (populates.length > 0 && this.dataSource.populateItems) {
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await this.dataSource.populateItems([item], populates, this.root.crudRegistry)
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}
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return this.processResItem(item)
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}
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private excludeKeys(item: any, keys: string[]): any {
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if (keys.length === 0) return item
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const result = { ...item }
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for (const key of keys) {
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delete result[key]
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}
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return result
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}
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private filterHidden(item: any): any {
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return this.excludeKeys(item, this.fields.filter(f => f.hidden).map(f => f.key))
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}
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private getRelationFields(): IFieldConfig[] {
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return this.fields.filter(f => f.type === "relation" && f.relation)
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}
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private getRelationPopulates(): IShrimpPopulate[] {
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return this.getRelationFields().map(f => ({
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key: f.key,
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moduleKey: f.relation!.moduleKey,
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labelKey: f.relation!.labelKey,
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}))
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}
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private buildQuery(query?: IPageQuery & any): IShrimpQuery {
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const { keyword, page, pageSize, sortBy, sortOrder, filter, ownerId } = query || {}
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const p = page || 1
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const ps = pageSize || ShrimpConfig.defaultPageSize
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const shrimpQuery: IShrimpQuery = {
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offset: (p - 1) * ps,
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limit: ps,
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}
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if (filter && typeof filter === 'object') {
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const filterableFields = new Map(this.fields.filter(f => f.filterable).map(f => [f.key, f]))
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const stringLikeTypes = new Set(['string', 'textarea'])
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const where: Record<string, IShrimpCondition> = {}
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for (const [key, value] of Object.entries(filter)) {
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const field = filterableFields.get(key)
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if (!field) continue
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if (value == null) continue
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if (Array.isArray(value) && value.length === 0) continue
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if (typeof value === 'string' && value === '') continue
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const obj = value as any
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if (typeof obj === 'object' && !Array.isArray(obj) && obj.min === undefined && obj.max === undefined) continue
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if (Array.isArray(value)) {
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where[key] = { in: value }
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} else if (typeof value === 'object') {
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const cond: IShrimpCondition = {}
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if (obj.min !== undefined) cond.gte = obj.min
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if (obj.max !== undefined) cond.lte = obj.max
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where[key] = cond
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} else if (typeof value === 'boolean') {
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where[key] = { eq: value }
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} else if (typeof value === 'string' && stringLikeTypes.has(field.type)) {
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where[key] = { like: value }
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} else {
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where[key] = { eq: value }
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}
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}
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if (Object.keys(where).length > 0) shrimpQuery.where = where
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}
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// 子表场景: ownerId + ownerKey 强制注入过滤
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if (ownerId != null && ownerId !== '' && this.ownerKey) {
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shrimpQuery.where = shrimpQuery.where || {}
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shrimpQuery.where[this.ownerKey] = { eq: ownerId }
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}
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if (keyword) {
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const stringLikeTypes = new Set(['string', 'textarea'])
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const searchFields = this.fields
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.filter(f => f.searchable && stringLikeTypes.has(f.type))
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.map(f => f.key)
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if (searchFields.length > 0) {
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shrimpQuery.orWhere = searchFields.map(key => ({ [key]: { like: keyword } }))
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}
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}
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if (sortBy) {
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shrimpQuery.order = [[sortBy, sortOrder === 'desc' ? 'desc' : 'asc']]
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}
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return shrimpQuery
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}
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async list(query?: IPageQuery & any): Promise<IPageResult<T>> {
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const shrimpQuery = this.buildQuery(query)
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const result = await this.dataSource.list(shrimpQuery)
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result.list = await this.prepareResponseItems(result.list)
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result.list = result.list.map(item => this.filterHidden(item))
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return result
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}
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async get(id: string): Promise<T | null> {
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const item = await this.dataSource.get(id)
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if (item) {
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const processed = await this.prepareResponseItem(item)
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return this.filterHidden(processed) as T
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}
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return item
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}
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async add(item: Omit<T, '_id'>, ownerId?: string): Promise<T> {
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if (ownerId && this.ownerKey) {
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(item as any)[this.ownerKey] = ownerId
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}
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const prepared = await this.prepareAddItem(item as any)
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const result = await this.dataSource.add(prepared as Omit<T, '_id'>)
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const processed = await this.prepareResponseItem(result)
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return this.filterHidden(processed) as T
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}
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async edit(id: string, item: Partial<T>): Promise<T | null> {
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const prepared = await this.prepareEditItem(item as any)
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const result = await this.dataSource.edit(id, prepared as Partial<T>)
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if (result) {
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const processed = await this.prepareResponseItem(result)
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return this.filterHidden(processed) as T
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}
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return result
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}
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async delete(id: string): Promise<boolean> {
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return await this.dataSource.delete(id)
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}
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async clear(query?: IPageQuery & any): Promise<boolean> {
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const hasFilter = query && (
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(query.keyword) ||
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(query.filter && typeof query.filter === 'object' && Object.keys(query.filter).length > 0)
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)
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if (hasFilter) {
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const shrimpQuery = this.buildQuery(query)
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delete shrimpQuery.offset
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delete shrimpQuery.limit
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const result = await this.dataSource.list(shrimpQuery)
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for (const item of result.list as any[]) {
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await this.dataSource.delete(item._id)
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}
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return true
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}
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return await this.dataSource.clear()
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}
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async export(query?: IPageQuery & any): Promise<T[]> {
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const shrimpQuery = this.buildQuery(query)
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delete shrimpQuery.offset
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delete shrimpQuery.limit
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const result = await this.dataSource.list(shrimpQuery)
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result.list = await this.prepareResponseItems(result.list)
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return result.list.map(item => this.filterHidden(item))
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}
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async import(data?: T[], ownerId?: string): Promise<void> {
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if (!data || data.length === 0) return
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for (const raw of data) {
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const item = { ...raw } as Record<string, any>
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if (ownerId && this.ownerKey) item[this.ownerKey] = ownerId
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const id = item._id ? String(item._id) : undefined
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if (id) {
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const existing = await this.dataSource.get(id)
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if (existing) {
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const prepared = await this.prepareEditItem(item)
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await this.dataSource.edit(id, prepared as Partial<T>)
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continue
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}
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}
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const prepared = await this.prepareAddItem(item)
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await this.dataSource.add(prepared as Omit<T, '_id'>)
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}
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}
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initCrud() {
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return this
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.addEvent("list", this.power)
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.addEvent("get", this.power)
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.addEvent("add", { t: "power.add" })
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.addEvent("edit", { t: "power.edit" })
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.addEvent("delete", { t: "power.delete" })
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}
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}
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