eventespresso / event-espresso-core

                )

            );

        }

        if (! isset($setup_args['main_file_path']) || empty($setup_args['main_file_path'])) {

            throw new EE_Error(

                sprintf(

                    __(

                        'When registering an addon, you didn\'t provide the "main_file_path", which is the full path to the main file loaded directly by Wordpress. You only provided %s',

                        'event_espresso'

        // don't give up! you gotta...

        try {

            //does the file exist and can it be read ?

            if (! $path) {

                // so sorry, can't find the file

                throw new EE_Error (

                    sprintf(

                        esc_html__(

                            'The %1$s file %2$s could not be located or is not readable due to file permissions. Please ensure that the following filepath(s) are correct: %3$s',

                            'event_espresso'

                        ),

                        trim($type, '.'),

                        $class_name,

                        '<br />' . implode(',<br />', $file_paths)

                    )

                );

            }

            // get the file

            require_once($path);

            // if the class isn't already declared somewhere

                    //then $possible_array_of_params looks something like array('<','DTT_sold',true)

                    //indicating that $possible_array_of_params[1] is actually a field name,

                    //from which we should extract query parameters!

                    if (! isset($possibly_array_of_params[0], $possibly_array_of_params[1])) {

                        throw new EE_Error(sprintf(__("Improperly formed query parameter %s. It should be numerically indexed like array('<','DTT_sold',true); but you provided %s",

                            "event_espresso"), $query_param_type, implode(",", $possibly_array_of_params)));

                    }

                    $this->_extract_related_model_info_from_query_param($possibly_array_of_params[1],

                        $model_query_info_carrier, $query_param_type);