Cannot use object of type stdClass as array error in node save

Question

I built a custom form and one of them is of type geocode with lat/lon fields. When I try to save the node I receive the following error:

Cannot use object of type stdClass as array in /var/www/vhosts/example.com/httpdocs/modules/field/field.attach.inc on line 208\n'.

The error disappears when I put comments in this field. My question is how can I solve this since it is very important field (I try to create nodes with geocode locations)

Here is how I declare my field:

$form['field_locationmap'] = array(
    '#title' => 'geofield',
    '#type' => 'geofield_latlon',
  );

It seems that the error occurs when I m trying to pass the values to the object:

$location->field_locationmap->und->{0}->geom->lon=$form_state['values']['field_locationmap']['lon'];
$location->field_locationmap->und->{0}->geom->lat=$form_state['values']['field_locationmap']['lat'];

Answer 1

Assuming this is Drupal 7 field_locationmap is an array so your assignment should look something like this:

$location->field_locationmap['und'][0]['geom']['lat']

Also make sure that['geom']['lat'] is the correct structure for that value (i.e it is an array with two keys) P.S. Consider using $location->language instead of 'und' in case you support multiple languages.

Answer 2

I guess you are using Entity metadata wrapper solution to set values of an entity (in this case node) , if so you have to use set method like this :

$location->field_locationmap->set([$form_state['values']['field_locationmap']['lon'], $form_state['values']['field_locationmap']['lat']]);

if not using entity metadata wrapper you might using some code like below:

$location = new stdClass();
$location->field_locationmap->und->{0}->geom->lon=$form_state['values']['field_locationmap']['lon'];
$location->field_locationmap->und->{0}->geom->lat=$form_state['values']['field_locationmap']['lat'];
$location->save();

if so as drupal expects fields value to be an array, it throws exception when facing object, so you need to modify your code like this:

$location = new stdClass();
$location->field_locationmap['und'][0]['geom'] = [
  'lon' => $form_state['values']['field_locationmap']['lon'],
  'lat' => $form_state['values']['field_locationmap']['lat']
];
$location->save();