Answers.Body: <p>Turns our it was this line causing the issue:</p>
  
  <pre><code>'collapsed' =&gt; true,
  </code></pre>
  
  <p>Removed it and all works as expected.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2018-12-20T12:18:29.143Z
Answers.LastActivityDate: 2018-12-20T12:18:29.143Z
Answers.UserDisplayName: ijust
Body: <p>I have an entry with a matrix field which I'm updating from front-end. The update works fine, but when the (font-end) page reloads after submitting the form, the CP bundle assets get included (selectize.css, craft.css, charts.css). If I then reload the page, the CP assets are no longer included. I believe have narrowed it down to the use of $entry->setFieldValue(). Does anyone know why that's happening and how to stop it? Or is there a different way to update an entry with a matrix field from font-end that doesn't require me to use setFieldValue()?</p>
  
  <p>Here's the relevant part of my update function:</p>
  
  <pre><code>$field = Craft::$app-&gt;getFields()-&gt;getFieldByHandle('fieldHandle');
  $existingMatrixQuery = $entry-&gt;getFieldValue('fieldHandle');
  
  $serializedMatrix = $field-&gt;serializeValue($existingMatrixQuery, $entry);
  $serializedMatrix['new1'] = [
      'type' =&gt; 'update',
      'enabled' =&gt; 1,
      'collapsed' =&gt; true,
      'fields' =&gt; array_merge($params['fields'], $params['required'])
  ];
  $entry-&gt;setFieldValue('fieldHandle', $serializedMatrix);
  
  if (Craft::$app-&gt;getElements()-&gt;saveElement($entry)) {
      return true;
  }
  </code></pre>
  
Tags: <craft3><matrix>
Title: Updating matrix field from font-end with $entry->setFieldValue() pulls in Cp bundle on save
ThreadText: # Updating matrix field from font-end with $entry->setFieldValue() pulls in Cp bundle on save
  
  (Asked by: username_0 on 2018-12-19)
  
  I have an entry with a matrix field which I'm updating from front-end. The update works fine, but when the (font-end) page reloads after submitting the form, the CP bundle assets get included (selectize.css, craft.css, charts.css). If I then reload the page, the CP assets are no longer included. I believe have narrowed it down to the use of $entry->setFieldValue(). Does anyone know why that's happening and how to stop it? Or is there a different way to update an entry with a matrix field from font-end that doesn't require me to use setFieldValue()?
  
  Here's the relevant part of my update function:
  
  ```
  $field = Craft::$app->getFields()->getFieldByHandle('fieldHandle');
  $existingMatrixQuery = $entry->getFieldValue('fieldHandle');
  
  $serializedMatrix = $field->serializeValue($existingMatrixQuery, $entry);
  $serializedMatrix['new1'] = [
      'type' => 'update',
      'enabled' => 1,
      'collapsed' => true,
      'fields' => array_merge($params['fields'], $params['required'])
  ];
  $entry->setFieldValue('fieldHandle', $serializedMatrix);
  
  if (Craft::$app->getElements()->saveElement($entry)) {
      return true;
  }
  
  ```
  
  **Tags:** craft3, matrix
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_0 on 2018-12-20. Score: 2
  
  Turns our it was this line causing the issue:
  
  ```
  'collapsed' => true,
  
  ```
  
  Removed it and all works as expected.
  
  
  ---
  
  