Answers.Body: <p>I was close. I was correct in assuming my syntax was incorrect for setting the value of an entries field.</p>
  
  <p>Since an entries field is an array of elements, not just a single element, I just needed to <a href="https://craftcms.stackexchange.com/questions/16593/how-can-i-programmatically-set-the-value-of-an-entries-field-type">set the value of the field as an array</a> instead of a string.</p>
  
  <p>Changing </p>
  
  <pre><code>$cart-&gt;setContentFromPost(['entriesFieldHandle' =&gt; $entry-&gt;id]);
  </code></pre>
  
  <p>to</p>
  
  <pre><code>$cart-&gt;setContentFromPost(['entriesFieldHandle' =&gt; [$entry-&gt;id]]);
  </code></pre>
  
  <p>seemed to do the trick.</p>
  
  <p>To zoom in a little more, the value needs to be set with <code>'entriesFieldHandle' =&gt; [$entry-&gt;id]</code> instead of <code>'entriesFieldHandle' =&gt; $entry-&gt;id</code>.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-09-19T14:58:16.807Z
Answers.LastActivityDate: 2016-09-19T14:58:16.807Z
Answers.LastEditDate: 2017-04-13T12:51:00.160Z
Answers.UserDisplayName: jthomas
Body: <p>I'm trying to set the value of a custom field on an order when saving an entry. I found <a href="https://craftcms.stackexchange.com/questions/15165/how-can-i-update-a-custom-order-field-in-a-plugin-controller">an example of how to do this</a> for a simple text field, but the field I'm trying to set is an <strong>entries</strong> field, not just a text field. I've attempted to set the value using the following code in my entries.saveEntry event. I'm assuming I'm doing this wrong since this is an entries field, not a simple text field, but I don't know the syntax for setting content on an entries field.</p>
  
  <pre><code>$cart = craft()-&gt;commerce_cart-&gt;getCart();
  $cart-&gt;setContentFromPost(['entriesFieldHandle' =&gt; $entry-&gt;id]);
  </code></pre>
  
Tags: <plugin-craftcommerce><entries-field><custom-field><order>
Title: How do I set the value of a custom entries order field from a plugin?
ThreadText: # How do I set the value of a custom entries order field from a plugin?
  
  (Asked by: username_0 on 2016-09-19)
  
  I'm trying to set the value of a custom field on an order when saving an entry. I found [an example of how to do this](https://craftcms.stackexchange.com/questions/15165/how-can-i-update-a-custom-order-field-in-a-plugin-controller) for a simple text field, but the field I'm trying to set is an **entries** field, not just a text field. I've attempted to set the value using the following code in my entries.saveEntry event. I'm assuming I'm doing this wrong since this is an entries field, not a simple text field, but I don't know the syntax for setting content on an entries field.
  
  ```
  $cart = craft()->commerce_cart->getCart();
  $cart->setContentFromPost(['entriesFieldHandle' => $entry->id]);
  
  ```
  
  **Tags:** plugin-craftcommerce, entries-field, custom-field, order
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_0 on 2016-09-19. Score: 4
  
  I was close. I was correct in assuming my syntax was incorrect for setting the value of an entries field.
  
  Since an entries field is an array of elements, not just a single element, I just needed to [set the value of the field as an array](https://craftcms.stackexchange.com/questions/16593/how-can-i-programmatically-set-the-value-of-an-entries-field-type) instead of a string.
  
  Changing
  
  ```
  $cart->setContentFromPost(['entriesFieldHandle' => $entry->id]);
  
  ```
  
  to
  
  ```
  $cart->setContentFromPost(['entriesFieldHandle' => [$entry->id]]);
  
  ```
  
  seemed to do the trick.
  
  To zoom in a little more, the value needs to be set with `'entriesFieldHandle' => [$entry->id]` instead of `'entriesFieldHandle' => $entry->id`.
  
  
  ---
  
  