eventespresso / event-espresso-core

        $allow_fields = in_array($query_param_type, array('where', 'having', 'order_by', 'group_by', 'order'));

        //check to see if we have a field on this model

        $this_model_fields = $this->field_settings(true);

        if (array_key_exists($query_param, $this_model_fields)) {

            if ($allow_fields) {

                return;

            }

            throw new EE_Error(

                sprintf(

                    __(

                        "Using a field name (%s) on model %s is not allowed on this query param type '%s'. Original query param was %s",

                        "event_espresso"

                    ),

                    $query_param, get_class($this), $query_param_type, $original_query_param

                )

            );

        }

        //check if this is a special logic query param

        if (in_array($query_param, $this->_logic_query_param_keys, true)) {

            if ($allow_logic_query_params) {

            $cleaned_value = $this->_construct_between_value($value, $field_obj);

            return $operator . SP . $cleaned_value;

        }

        if (in_array($operator, $this->_null_style_operators)) {

            if ($value !== null) {

                throw new EE_Error(

                    sprintf(

                        __(

                            "You attempted to give a value  (%s) while using a NULL-style operator (%s). That isn't valid",

                            "event_espresso"

                        ),

                        $value,

                        $operator

                    )

                );

            }

            return $operator;

        }

        if ($operator === 'LIKE' && ! is_array($value)) {

            //if the operator is 'LIKE', we want to allow percent signs (%) and not

            //remove other junk. So just treat it as a string.

    public function add_to_entity_map(EE_Base_Class $object)

    {

        $className = $this->_get_class_name();

        if (! $object instanceof $className) {

            throw new EE_Error(sprintf(__("You tried adding a %s to a mapping of %ss", "event_espresso"),

                is_object($object) ? get_class($object) : $object, $className));

        }

        /** @var $object EE_Base_Class */

        if (! $object->ID()) {

            throw new EE_Error(sprintf(__("You tried storing a model object with NO ID in the %s entity mapper.",