se/SE/se-lib/OBJ.php

<?php

/**
 * json files in schema/gui/core/
 *   default_db-{tbl_name}.json - config for raw table - no 'parent_object' defined
 *   {object_name}.json - config for object - require 'parent_object' (another object or default_db-* raw table object)
 */
class OBJ {

  public static function getLabel($json) {
    if (empty($json['label'])) return null;
    return (is_array($json['label']))? end($json['label']) : $json['label'];
  }

  // @returns array of parent object names
  public static function getParentList($json) {
    if (empty($json['parent_object'])) return array();
    return (!is_array($json['parent_object']))? array($json['parent_object']) : array_reverse($json['parent_object']);
  }

  public static function getFields($json) {
    if (empty($json['fields'])) return array();
    return $json['fields'];
  }

  public static function getCoreObjectFromFile($objectName) {
		$objectFileName = str_replace("/", '-', $objectName);
		$filePath = APP_PATH_SCHEMA . "/gui/core/{$objectFileName}.json";
		if (!file_exists($filePath)) throw new Exception("File not exists {$filePath}", 404);

		$json = file_get_contents($filePath);
		DBG::_('DBG', '>1', "{$objectName} filePath", $filePath, __CLASS__, __FUNCTION__, __LINE__);
		DBG::_('DBG', '>1', "{$objectName} file content", $json, __CLASS__, __FUNCTION__, __LINE__);
		$json = @json_decode($json, $assoc = true);
		DBG::_('DBG', '>1', "{$objectName} json_last_error()", json_last_error(), __CLASS__, __FUNCTION__, __LINE__);
		if (null == $json && 0 !== json_last_error()) throw new Exception("Parse json error for object '{$objectName}': " . json_last_error());
		if (empty($json['parent_object'])) return $json;
		$jsonParent = array();
		$parent = (is_array($json['parent_object']))? end($json['parent_object']) : $json['parent_object'];
		$jsonParent = self::getCoreObjectFromFile($parent);
		return array_merge_recursive($jsonParent, $json);
	}

  public static function getCoreObjectList() {
    $objectList = array();
    $files = glob(APP_PATH_SCHEMA . "/gui/core/*.json", GLOB_NOSORT);
    //DBG::_(true, true, "files", $files, __CLASS__, __FUNCTION__, __LINE__);
    foreach ($files as $filePath) {
			$fileName = basename($filePath);
			$objName = substr($fileName, 0, -5);// remove ext '.json'
      $objectList[] = $objName;
    }
    return $objectList;
  }

}