title: how can I get my dto of relations in typeOrm?
body: <p><strong>how can I get my dto of relations in typeOrm?</strong></p>
  <p>I have <strong>nationals</strong> and  <strong>provinces</strong></p>
  <p>I use <em>plainToClass</em> of <em>'class-transformer'</em> and get dto of national</p>
  <p>I want get dto of relations ( <strong>provinces</strong> )</p>
  <pre><code>{
      &quot;code&quot;: &quot;Manchester&quot;,
      &quot;name&quot;: &quot;Manchester&quot;,
      &quot;displayOrder&quot;: &quot;0&quot;,
      &quot;nationalId&quot;: 1,
      &quot;national&quot;: {
        &quot;id&quot;: 1,
        &quot;name&quot;: &quot;England&quot;,
        &quot;code&quot;: &quot;England&quot;,
        &quot;displayOrder&quot;: &quot;1&quot;,
        &quot;createdAt&quot;: &quot;2021-08-04T07:44:13.186Z&quot;,
        &quot;updatedAt&quot;: &quot;2021-08-04T07:44:13.186Z&quot;,
        &quot;version&quot;: &quot;0&quot;
      }
  },
  </code></pre>
  <p>my dto of relations :</p>
  <pre><code>export class NationalDto {
      name: string;
      code: string;
      displayOrder: number;
  }
  </code></pre>
  <p>I want get like:</p>
  <pre><code>{
      &quot;code&quot;: &quot;Manchester&quot;,
      &quot;name&quot;: &quot;Manchester&quot;,
      &quot;displayOrder&quot;: &quot;0&quot;,
      &quot;nationalId&quot;: 1,
      &quot;national&quot;: {
        &quot;name&quot;: &quot;England&quot;,
        &quot;code&quot;: &quot;England&quot;,
        &quot;displayOrder&quot;: &quot;1&quot;
      }
  },
  </code></pre>
  <p>This my code in repository :</p>
  <pre><code>async findAll(): Promise&lt;Province[]&gt; {
      return await this.find({
          relations : [&quot;nationals&quot;]
      })
  }
  </code></pre>