60 lines
2.2 KiB
TypeScript
60 lines
2.2 KiB
TypeScript
import 'reflect-metadata'
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import { METADATA_KEY, VAILD_TYPE } from './constants';
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import { VaildFunction, interfaces } from './interfaces'
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import { getVaildControllerMetadata, getVaildModelMetadata } from './utils'
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/**
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* ParameterVaild
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*/
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export function Vaild(): ParameterDecorator {
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return (controller: Object, methodName: string, index: number): void => {
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var type = Reflect.getMetadata("design:paramtypes", controller, methodName)[index];
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let metadataList = getVaildControllerMetadata(controller.constructor);
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let parameterMetadataList = metadataList[methodName] || [];
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let parameterMetadata: interfaces.ParameterMetadata = {
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index: index,
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type: type
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};
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parameterMetadataList.unshift(parameterMetadata);
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metadataList[methodName] = parameterMetadataList;
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Reflect.defineMetadata(METADATA_KEY.vaildController, metadataList, controller.constructor);
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}
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}
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let vaildFunctions: {
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[methodName: string]: VaildFunction;
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} = {};
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/**
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* Vaild Blank String
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* @param message Error Message
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*/
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export const NotBlank: (message?: string) => PropertyDecorator = vaildDecoratorFactory(
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VAILD_TYPE.NOT_BLANK, (param) => !!param);
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/**
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* Vaild Null Param
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* @param message Error Message
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*/
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export const NotNull: (message?: string) => PropertyDecorator = vaildDecoratorFactory(
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VAILD_TYPE.NOT_NULL, (param) => param !== undefined
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);
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function vaildDecoratorFactory(type: VAILD_TYPE, handle: VaildFunction): () => PropertyDecorator {
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vaildFunctions[type] = handle;
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return function(message?: string): PropertyDecorator {
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return vaildProperty(type, message);
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};
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}
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function vaildProperty(type: VAILD_TYPE, message?: string): PropertyDecorator {
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return (model: Object, propertyKey: string) => {
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let metadataList: interfaces.PropertyMetadata[] = getVaildModelMetadata(model.constructor);
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metadataList.push({
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type: type,
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name: propertyKey,
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message: message || `model ${model.constructor.name} property ${propertyKey} vaild failed => ${VAILD_TYPE[type]}`,
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handle: vaildFunctions[type]
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})
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Reflect.defineMetadata(METADATA_KEY.vaildModel, metadataList, model.constructor);
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}
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}
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