public function Selective::getValueOptions in Views Selective Filters 8

Child classes should be used to override this function and set the 'value options', unless 'options callback' is defined as a valid function or static public method to generate these values.

This can use a guard to be used to reduce database hits as much as possible.

Return value

array|null The stored values from $this->valueOptions.

Overrides InOperator::getValueOptions

1 call to Selective::getValueOptions()

Selective::valueForm in src/Plugin/views/filter/Selective.php

Options form subform for setting options.

File

src/Plugin/views/filter/Selective.php, line 66

Class

Selective

Views filter handler for selective values.

Namespace

Drupal\views_selective_filters\Plugin\views\filter

Code

public function getValueOptions() {
  if (isset($this->valueOptions)) {
    return $this->valueOptions;
  }
  $this->valueOptions = [];

  // If $this->view->selective_oids means that the handler is being called
  // inside the cloned view used to obtain the selective values and thus this
  // is to prevent infinite recursive loop.
  if (empty($this->view->selective_oids) && !empty($this->view->inited)) {
    $this->valueOptions = $this
      ->getOids();

    // TODO: Omit null values in result: they are improperly handled.
    // When constructing the query.
    $this->valueOptions = array_diff_key($this->valueOptions, [
      '' => NULL,
    ]);

    // Set a flag in the view so we know it is using selective filters.
    $this->view->using_selective = TRUE;
  }
  else {
    if (!empty($this->view->selective_oids)) {
      $this->valueOptions = [];
    }
    else {

      // This is a special case, if $this->valueOptions is not an array
      // then parent::valueForm() will throw an exception, so,
      // in our custom override no form is generated when $this->valueOptions
      // is not an array. We only want this to happen in the administrative
      // interface.
      // unset($this->valueOptions);.
    }
  }
  return $this->valueOptions;
}