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<?php |
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namespace EventEspresso\core\libraries\rest_api; |
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use EEM_Base; |
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use EventEspresso\core\libraries\rest_api\controllers\Base; |
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use EEH_Inflector; |
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/** |
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* Class CalculatedModelFields |
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* Class for defining which model fields can be calculated, and performing those calculations |
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* as requested |
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* |
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* @package Event Espresso |
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* @subpackage |
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* @author Mike Nelson |
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* @since 4.8.35.rc.001 |
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*/ |
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if (! defined('EVENT_ESPRESSO_VERSION')) { |
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exit('No direct script access allowed'); |
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} |
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class CalculatedModelFields |
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{ |
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/** |
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* @var array |
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*/ |
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protected $mapping; |
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/** |
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* @param bool $refresh |
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* @return array top-level-keys are model names (eg "Event") |
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* next-level are the calculated field names AND method names on classes |
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* which perform calculations, values are the fully qualified classnames which do the calculations |
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* These callbacks should accept as arguments: |
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* the wpdb row results, |
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* the WP_Request object, |
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* the controller object |
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*/ |
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public function mapping($refresh = false) |
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{ |
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if (! $this->mapping || $refresh) { |
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$this->mapping = $this->generateNewMapping(); |
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} |
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return $this->mapping; |
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} |
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/** |
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* Generates anew mapping between model calculated fields and their callbacks |
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* |
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* @return array |
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*/ |
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protected function generateNewMapping() |
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{ |
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$rest_api_calculations_namespace = 'EventEspresso\core\libraries\rest_api\calculations\\'; |
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$event_calculations_class = $rest_api_calculations_namespace . 'Event'; |
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$datetime_calculations_class = $rest_api_calculations_namespace . 'Datetime'; |
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$registration_class = $rest_api_calculations_namespace . 'Registration'; |
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return apply_filters( |
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'FHEE__EventEspresso\core\libraries\rest_api\Calculated_Model_Fields__mapping', |
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array( |
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'Event' => array( |
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'optimum_sales_at_start' => $event_calculations_class, |
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'optimum_sales_now' => $event_calculations_class, |
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'spots_taken' => $event_calculations_class, |
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'spots_taken_pending_payment' => $event_calculations_class, |
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'spaces_remaining' => $event_calculations_class, |
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'registrations_checked_in_count' => $event_calculations_class, |
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'registrations_checked_out_count' => $event_calculations_class, |
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'image_thumbnail' => $event_calculations_class, |
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'image_medium' => $event_calculations_class, |
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'image_medium_large' => $event_calculations_class, |
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'image_large' => $event_calculations_class, |
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'image_post_thumbnail' => $event_calculations_class, |
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'image_full' => $event_calculations_class, |
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), |
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'Datetime' => array( |
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'spaces_remaining_considering_tickets' => $datetime_calculations_class, |
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'registrations_checked_in_count' => $datetime_calculations_class, |
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'registrations_checked_out_count' => $datetime_calculations_class, |
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'spots_taken_pending_payment' => $datetime_calculations_class, |
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), |
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'Registration' => array( |
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'datetime_checkin_stati' => $registration_class, |
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), |
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) |
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); |
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} |
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/** |
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* Gets the known calculated fields for model |
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* |
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* @param EEM_Base $model |
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* @return array allowable values for this field |
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*/ |
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public function retrieveCalculatedFieldsForModel(EEM_Base $model) |
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{ |
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$mapping = $this->mapping(); |
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if (isset($mapping[$model->get_this_model_name()])) { |
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return array_keys($mapping[$model->get_this_model_name()]); |
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} else { |
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return array(); |
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} |
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} |
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/** |
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* Retrieves the value for this calculation |
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* |
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* @param EEM_Base $model |
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* @param string $field_name |
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* @param array $wpdb_row |
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* @param \WP_REST_Request |
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* @param \EventEspresso\core\libraries\rest_api\controllers\Base $controller |
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* @return mixed|null |
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* @throws \EE_Error |
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*/ |
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public function retrieveCalculatedFieldValue( |
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EEM_Base $model, |
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$field_name, |
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$wpdb_row, |
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$rest_request, |
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Base $controller |
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) { |
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$mapping = $this->mapping(); |
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if (isset($mapping[$model->get_this_model_name()]) |
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&& isset($mapping[$model->get_this_model_name()][$field_name]) |
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) { |
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$classname = $mapping[$model->get_this_model_name()][$field_name]; |
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$class_method_name = EEH_Inflector::camelize_all_but_first($field_name); |
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return call_user_func(array($classname, $class_method_name), $wpdb_row, $rest_request, $controller); |
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} |
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throw new RestException( |
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'calculated_field_does_not_exist', |
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sprintf( |
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__('There is no calculated field %1$s on resource %2$s', 'event_espresso'), |
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$field_name, |
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$model->get_this_model_name() |
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) |
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); |
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} |
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} |
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eventespresso /
event-espresso-core
This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)or! empty(...)instead.