Nested objects not working (in certain pattern)

I’m submitting a…

[ ] Regression 
[X] Bug report
[ ] Feature request
[ ] Documentation issue or request
[ ] Support request => Please do not submit support request here, instead post your question on Stack Overflow.

Current behavior

The “An object inside an array of object” structure isn’t presenting properly (both Example Values and Schema sections).

Here is my code structure:

// NewBookingDto.ts
export class NewBookingDto {
  @ApiProperty({
    description: "List of buyers",
    type: [BuyerDto],
  })
  buyers: BuyerDto[];
}

...
// BuyerDto.ts
export class BuyerDto {
  @ApiProperty({
    description: "List of buyers' contact person",
    type: BuyerContactPersonDto, // <-- Not okay; [BuyerContactPersonDto] <-- okay
  })
  buyer_contact_person: BuyerContactPersonDto;
}

I tried three nested structure, only first structure not working properly.

1. buyers[] -> buyer_contact_person - Not Okay

2. buyers[] -> buyer_contact_person[] - Okay

3. buyers -> buyer_contact_person - Okay

Expected behavior

It should works like other nested patterns.

Environment

Nest version: 
"@nestjs/common": "^6.7.2",
"@nestjs/core": "^6.7.2",
"@nestjs/swagger": "^4.5.4"
 
For Tooling issues:
- Node version: v12.16.1
- Platform:  MacOS

[manuelnucci]

I don’t know why this issue was closed but the problem persists. As @huypvw stated, the problem appears at the third level of a nested object.

Removing description property from @ApiProperty() seems to do the trick. A proper fix should be made.

[minenkom]

Is this solved?? I faced this issue @nestjs/common: "^6.7.2",,,

I’m submitting a…

[ ] Regression 
[X] Bug report
[ ] Feature request
[ ] Documentation issue or request
[ ] Support request => Please do not submit support request here, instead post your question on Stack Overflow.

Current behavior

The “An object inside an array of object” structure isn’t presenting properly (both Example Values and Schema sections).

Here is my code structure:

// NewBookingDto.ts
export class NewBookingDto {
  @ApiProperty({
    description: "List of buyers",
    type: [BuyerDto],
  })
  buyers: BuyerDto[];
}

...
// BuyerDto.ts
export class BuyerDto {
  @ApiProperty({
    description: "List of buyers' contact person",
    type: BuyerContactPersonDto, // <-- Not okay; [BuyerContactPersonDto] <-- okay
  })
  buyer_contact_person: BuyerContactPersonDto;
}

I tried three nested structure, only first structure not working properly.

1. buyers[] -> buyer_contact_person - Not Okay

1. buyers[] -> buyer_contact_person[] - Okay

1. buyers -> buyer_contact_person - Okay

Expected behavior

It should works like other nested patterns.

Environment

Nest version: 
"@nestjs/common": "^6.7.2",
"@nestjs/core": "^6.7.2",
"@nestjs/swagger": "^4.5.4"
 
For Tooling issues:
- Node version: v12.16.1
- Platform:  MacOS

Hi, as a workaround you can remove description for this field. More info here https://github.com/nestjs/swagger/pull/842