Answers.Body: <p>Not sure if this can be done in the shorthand syntax, but you can do this using Twig for the dynamic title format. The key is to use <a href="https://twig.symfony.com/doc/3.x/filters/map.html" rel="nofollow noreferrer">map</a> to turn an array of entries into an array of titles and then <a href="https://twig.symfony.com/doc/3.x/filters/join.html" rel="nofollow noreferrer">join</a> them. Something like this should work:</p>
  <pre><code>{{ object.movies.all()|map(movie =&gt; movie.title)|join(', ')|default('No movies selected') }}
  </code></pre>
  <p>Also note the <a href="https://twig.symfony.com/doc/3.x/filters/default.html" rel="nofollow noreferrer">default</a> filter, which is a nice fallback in case no entries are selected in your <code>movie</code> field.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2021-05-07T18:44:57.067Z
Answers.Text: It works!, the field is required but yes the default is a nice fallback.
Answers.UserDisplayName: user15280052
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2021-05-07T07:51:22.670Z
Answers.LastActivityDate: 2021-05-07T07:51:22.670Z
Answers.UserDisplayName: MoritzLost
Body: <p>I have two sections <em>(both Channel type)</em>:</p>
  <ul>
  <li>Releases</li>
  <li>Movies</li>
  </ul>
  <p><strong>Releases</strong> have one <strong>Entries field type</strong>, the source is <strong>Movies</strong></p>
  <p>So, I want Auto-generate a <strong>Release</strong> title from <strong>Movies</strong>, like this: <strong>Titanic, Avatar, Toy Story</strong></p>
  <p>This works <code>{ movies.one().title }</code> as a <strong>Title Format</strong> on the <strong>Releases</strong> Settings but display just the first movie: <strong>Titanic</strong>, the question is how can load all the entries titles? to get <strong>Titanic, Avatar, Toy Story</strong> as a title</p>
  <p>I do a research and I get this: <a href="https://craftcms.stackexchange.com/questions/1689/how-can-i-set-an-entry-title-automatically-based-on-a-related-entry">How can I set an entry title automatically, based on a related entry?</a> but again that display only the first entry title.</p>
  
Tags: <entries><fieldtypes><titles><format><auto-generate>
Title: How to Auto-generate a Title based on a multiple entries titles? (using a Entries field type)
ThreadText: # How to Auto-generate a Title based on a multiple entries titles? (using a Entries field type)
  
  (Asked by: username_0 on 2021-05-06)
  
  I have two sections *(both Channel type)*:
  
  * Releases
  * Movies
  
  **Releases** have one **Entries field type**, the source is **Movies**
  
  So, I want Auto-generate a **Release** title from **Movies**, like this: **Titanic, Avatar, Toy Story**
  
  This works `{ movies.one().title }` as a **Title Format** on the **Releases** Settings but display just the first movie: **Titanic**, the question is how can load all the entries titles? to get **Titanic, Avatar, Toy Story** as a title
  
  I do a research and I get this: [How can I set an entry title automatically, based on a related entry?](https://craftcms.stackexchange.com/questions/1689/how-can-i-set-an-entry-title-automatically-based-on-a-related-entry) but again that display only the first entry title.
  
  **Tags:** entries, fieldtypes, titles, format, auto-generate
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2021-05-07. Score: 1
  
  Not sure if this can be done in the shorthand syntax, but you can do this using Twig for the dynamic title format. The key is to use [map](https://twig.symfony.com/doc/3.x/filters/map.html) to turn an array of entries into an array of titles and then [join](https://twig.symfony.com/doc/3.x/filters/join.html) them. Something like this should work:
  
  ```
  {{ object.movies.all()|map(movie => movie.title)|join(', ')|default('No movies selected') }}
  
  ```
  
  Also note the [default](https://twig.symfony.com/doc/3.x/filters/default.html) filter, which is a nice fallback in case no entries are selected in your `movie` field.
  
  > **Comments:**
  > **username_0**: It works!, the field is required but yes the default is a nice fallback.  
  
  ---
  
  