private void loadEvents() {
    EventFilterRequestParams params = new EventFilterRequestParams();
    params.setOrganizationId(organization.getId());
    setWorking(true);

    Workers.load(
        new EventRegisteredLoader(params),
        new EventRegisteredLoaderListener() {
          @Override
          public void onInternetException(Exception e) {
            UiTool.toast(R.string.error_no_internet, getApplicationContext());
            setWorking(false);
          }

          @Override
          public void onServerSideException(ApiCall.ApiServerSideException e) {
            UiTool.toast(R.string.error_server, getApplicationContext());
            setWorking(false);
          }

          @Override
          public void onResult(EventFilterResponseData result) {
            UserInEvent[] userInEvents = result.getUserInEvents();
            if (userInEvents == null) userInEvents = new UserInEvent[0];

            OrganizationInEvent[] orgInEvents = result.getOrganizationInEvents();
            if (orgInEvents == null) orgInEvents = new OrganizationInEvent[0];

            onEventsLoaded(userInEvents, orgInEvents);
            setWorking(false);
          }
        },
        this,
        true);
  }
  @Override
  protected void onCreate(Bundle state) {
    super.onCreate(state);
    setContentView(R.layout.activity_organization);

    organization = IntentHelper.getOrganization(getIntent());
    user = IntentHelper.getUser(getIntent());

    getSupportActionBar().setTitle(organization.getName());

    initEvents();
    initPreregisterButton();

    loadEvents();

    String description = organization.getDescription();
    if (description != null) {
      description = description.trim();
    }
    ((TextView) findViewById(R.id.organization_description)).setText(description);
  }
  @Override
  protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == REQUEST_REGISTER) {
      EventFilterRequestParams params = new EventFilterRequestParams();
      params.setOrganizationId(organization.getId());

      EventRegisteredLoader loader =
          (EventRegisteredLoader)
              Workers.load(
                  new EventRegisteredLoader(params),
                  new EventRegisteredLoaderListener() {
                    @Override
                    public void onInternetException(Exception e) {
                      UiTool.toast(R.string.error_no_internet, getApplicationContext());
                    }

                    @Override
                    public void onServerSideException(ApiCall.ApiServerSideException e) {
                      UiTool.toast(R.string.error_server, getApplicationContext());
                    }

                    @Override
                    public void onResult(EventFilterResponseData result) {
                      UserInEvent[] userInEvents = result.getUserInEvents();
                      if (userInEvents == null) userInEvents = new UserInEvent[0];

                      OrganizationInEvent[] orgInEvents = result.getOrganizationInEvents();
                      if (orgInEvents == null) orgInEvents = new OrganizationInEvent[0];

                      onEventsLoaded(userInEvents, orgInEvents);
                    }
                  },
                  this,
                  true);
    }
  }