fix

things/nest-typeorm/src/dto/PageSettings.dto.ts

-import { IsInt, IsOptional, IsPositive } from 'class-validator';
+import { IsInt, IsPositive } from 'class-validator';
 import { SelectQueryBuilder } from 'typeorm';
 import { ApiProperty } from '@nestjs/swagger';
+import { NotWritable } from '../entities/decorators/transform';
 
 export class PageSettingsDto {
-  @IsOptional()
+  @NotWritable()
   @IsPositive()
   @IsInt()
   @ApiProperty({ description: '第 n 页，从 1 开始', required: false })
   pageCount: number;
 
-  @IsOptional()
+  @NotWritable()
   @IsPositive()
   @IsInt()
   @ApiProperty({ description: '每页显示的数量', required: false })