How to add additional fields in Joomla?

Question

Joomla

The task is to set additional fields manually.

<?php 
// GET CUSTOM FIELDS
    $myCustomFields = array();
    foreach($this->item->jcfields as $field) {
        $myCustomFields[$field->name] = $field->value;
} 
// RECOVER CUSTOM FILED NAME
    if (isset($myCustomFields['field-1']) and !empty($myCustomFields['field-1'])) : ?>
        <div class="field">
            <div class="field__name">Название поля:</div>
            <div class="field__value"><?php echo $myCustomFields['field-1']; ?></div>
        </div>
<?php endif; ?>

there are no problems with displaying additional fields directly in the article.php template.
but I need to output them to the blog category template. An error occurs when trying to display a field.

Warning: Invalid argument supplied for foreach() in C:\OpenServer\domains\center-skidok.loc\templates\centerskidok\html\com_tags\tag\default_items.php on line 65

Answer 1

This is not a blog category template. It is you who are trying to display the fields from the materials in the "labels" component, so they are not there.
This is how you can

JLoader::register('FieldsHelper', JPATH_ADMINISTRATOR . '/components/com_fields/helpers/fields.php');
$item->jcfields = FieldsHelper::getFields('com_content.article', $item, true);
$fields = [];
foreach($item->jcfields as $jcfield)
{
  $fields[$jcfield->name] = $jcfield;
}
$fields['имя_поля']->rawvalue;