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Steffen avatar Drupal

How to fill a form field of type fieldset with values from an array

cn flag
Steffen

How can I fill a formfield type fieldset with more than one markup value from an array?

foreach ($drugis_postgis_connection->tableNames() as $table) {
    $form['tables'] = [
      '#type' => 'fieldset',
      '#title' => $this->t('Tables'),
      '#markup' => $table, 
      '#collapsible' => TRUE, // Added
      '#collapsed' => FALSE,  // Added
  ];

I don't need more fields i want to markup all values from the array in the field. Actually there is only one value, from the array displayed.

Sorry if my question is not clear, i want something like this.

enter image description here

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avatar Drupal
us flag
tyler.frankenstein

If you overwrite $form['tables'] on each iteration, you're only going to end up with one tables on the form. Each element on the $form needs to have a unique name. Try something like this:

foreach ($drugis_postgis_connection->tableNames() as $key => $table) {

  $form['table' . $key] = [
    /** ... **/
  ];

}

If you want only one fieldset, then trying something like this:

$tables = $drugis_postgis_connection->tableNames();
$form['tables'] = [
  /** ... **/
  '#markup' => implode('', $tables),
  /** ... **/
];
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Steffen avatar
cn flag
Steffen
This works fine, but it created vor every value an own block, i want to list all tables in one form???
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us flag
tyler.frankenstein
I'm assuming you mean one fieldset. If that's the case, I've updated the answer.
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apaderno avatar Drupal
us flag
apaderno

The code shown in the question doesn't work for two reasons.

  • The foreach loop is overriding $form['tables'] each time, with the effect that $form['tables']['#markup'] contains only the last table name found from $drugis_postgis_connection->tableNames()
  • A fieldset element doesn't use #markup

You need to use code similar to the following one.

$tables = $drugis_postgis_connection->tableNames();

$form['tables'] = [
  '#type' => 'fieldset',
  '#title' => $this->t('Tables'),
  '#collapsible' => TRUE,
  '#collapsed' => FALSE,
];

$form['tables']['list'] = [
  '#markup' => implode(',', $tables),
];

I assume $drugis_postgis_connection->tableNames() returns an array of strings; otherwise, implode(',', $tables) needs to be changed.

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