validators for TextField

src/infrastructure/decorators/fields/TextField.ts

@@ -1,8 +1,16 @@
 import {applyDecorators} from '@nestjs/common';
 import {Column} from '@steroidsjs/typeorm';
+import {toInteger as _toInteger} from 'lodash';
+import {IsOptional, IsString, MaxLength, MinLength} from 'class-validator';
 import {BaseField, IBaseFieldOptions} from './BaseField';
 
-export function TextField(options: IBaseFieldOptions = {}) {
+export interface ITextFieldOptions extends IBaseFieldOptions {
+    isStringConstraintMessage?: string,
+    minConstraintMessage?: string,
+    maxConstraintMessage?: string,
+}
+
+export function TextField(options: ITextFieldOptions = {}) {
     return applyDecorators(
         BaseField(options, {
             decoratorName: 'TextField',
@@ -15,5 +23,19 @@ export function TextField(options: IBaseFieldOptions = {}) {
             default: options.defaultValue,
             nullable: options.nullable,
         }),
+        IsString({
+            each: options.isArray,
+            message: options.isStringConstraintMessage || 'Должна быть строка',
+        }),
+        !options.required && IsOptional(),
+        typeof options.min === 'number' && MinLength(options.min, {
+            message: options.minConstraintMessage,
+            each: options.isArray,
+        }),
+        typeof options.max === 'number' && MaxLength(_toInteger(options.max), {
+            message: options.maxConstraintMessage,
+            each: options.isArray,
+        }),
+
     );
 }