private BaseClass getSubscriptionClass(XWikiContext context) throws XWikiException {
    XWikiDocument doc;
    XWiki xwiki = context.getWiki();
    boolean needsUpdate = false;

    try {
      doc = xwiki.getDocument(CelementsCalendarPlugin.SUBSCRIPTION_CLASS, context);
    } catch (Exception e) {
      doc = new XWikiDocument();
      doc.setSpace(CelementsCalendarPlugin.SUBSCRIPTION_CLASS_SPACE);
      doc.setName(CelementsCalendarPlugin.SUBSCRIPTION_CLASS_DOC);
      needsUpdate = true;
    }

    BaseClass bclass = doc.getxWikiClass();
    bclass.setName(CelementsCalendarPlugin.SUBSCRIPTION_CLASS);
    needsUpdate |= bclass.addTextField("subscriber", "subscriber", 30);
    needsUpdate |= bclass.addBooleanField("doSubscribe", "doSubscribe", "yesno");

    String content = doc.getContent();
    if ((content == null) || (content.equals(""))) {
      needsUpdate = true;
      doc.setContent(" ");
    }

    if (needsUpdate) {
      xwiki.saveDocument(doc, context);
    }
    return bclass;
  }
  private BaseClass getCalendarClass(XWikiContext context) throws XWikiException {
    XWikiDocument doc;
    XWiki xwiki = context.getWiki();
    boolean needsUpdate = false;

    try {
      doc = xwiki.getDocument(CelementsCalendarPlugin.CLASS_CALENDAR, context);
    } catch (Exception e) {
      doc = new XWikiDocument();
      doc.setSpace(CelementsCalendarPlugin.CLASS_CALENDAR_SPACE);
      doc.setName(CelementsCalendarPlugin.CLASS_CALENDAR_DOC);
      needsUpdate = true;
    }

    BaseClass bclass = doc.getxWikiClass();
    bclass.setName(CelementsCalendarPlugin.CLASS_CALENDAR);
    needsUpdate |=
        bclass.addTextField(
            CelementsCalendarPlugin.PROPERTY_CALENDAR_SPACE,
            CelementsCalendarPlugin.PROPERTY_CALENDAR_SPACE,
            30);
    String hql = "select doc.fullName from XWikiDocument as doc, BaseObject as obj,";
    hql += " IntegerProperty as int ";
    hql += "where obj.name=doc.fullName ";
    hql += "and not doc.fullName='$doc.getFullName()' ";
    hql += "and obj.className='" + CelementsCalendarPlugin.CLASS_CALENDAR + "' ";
    hql += "and int.id.id=obj.id ";
    hql += "and int.id.name='" + CelementsCalendarPlugin.PROPERTY_IS_SUBSCRIBABLE + "' ";
    hql += "and int.value='1' ";
    hql += "order by doc.fullName asc";
    needsUpdate |=
        bclass.addDBListField(
            CelementsCalendarPlugin.PROPERTY_SUBSCRIBE_TO,
            CelementsCalendarPlugin.PROPERTY_SUBSCRIBE_TO,
            5,
            true,
            hql);
    needsUpdate |=
        bclass.addTextField(
            CelementsCalendarPlugin.PROPERTY_OVERVIEW_COLUMN_CONFIG,
            CelementsCalendarPlugin.PROPERTY_OVERVIEW_COLUMN_CONFIG,
            30);
    needsUpdate |=
        bclass.addTextField(
            CelementsCalendarPlugin.PROPERTY_EVENT_COLUMN_CONFIG,
            CelementsCalendarPlugin.PROPERTY_EVENT_COLUMN_CONFIG,
            30);
    needsUpdate |=
        bclass.addNumberField(
            CelementsCalendarPlugin.PROPERTY_EVENT_PER_PAGE,
            CelementsCalendarPlugin.PROPERTY_EVENT_PER_PAGE,
            5,
            "integer");
    needsUpdate |=
        bclass.addBooleanField(
            CelementsCalendarPlugin.PROPERTY_HAS_MORE_LINK,
            CelementsCalendarPlugin.PROPERTY_HAS_MORE_LINK,
            "yesno");
    needsUpdate |=
        bclass.addBooleanField(
            CelementsCalendarPlugin.PROPERTY_IS_SUBSCRIBABLE,
            CelementsCalendarPlugin.PROPERTY_IS_SUBSCRIBABLE,
            "yesno");

    String content = doc.getContent();
    if ((content == null) || (content.equals(""))) {
      needsUpdate = true;
      doc.setContent(" ");
    }

    if (needsUpdate) {
      xwiki.saveDocument(doc, context);
    }
    return bclass;
  }
  private BaseClass getCalendarEventClass(XWikiContext context) throws XWikiException {
    XWikiDocument doc;
    XWiki xwiki = context.getWiki();
    boolean needsUpdate = false;

    try {
      doc = xwiki.getDocument(CelementsCalendarPlugin.CLASS_EVENT, context);
    } catch (Exception e) {
      doc = new XWikiDocument();
      doc.setSpace(CelementsCalendarPlugin.CLASS_EVENT_SPACE);
      doc.setName(CelementsCalendarPlugin.CLASS_EVENT_DOC);
      needsUpdate = true;
    }

    BaseClass bclass = doc.getxWikiClass();
    bclass.setName(CelementsCalendarPlugin.CLASS_EVENT);
    needsUpdate |=
        bclass.addTextField(
            CelementsCalendarPlugin.PROPERTY_LANG, CelementsCalendarPlugin.PROPERTY_LANG, 30);
    needsUpdate |=
        bclass.addTextField(
            CelementsCalendarPlugin.PROPERTY_TITLE, CelementsCalendarPlugin.PROPERTY_TITLE, 30);
    needsUpdate |=
        bclass.addTextAreaField(
            CelementsCalendarPlugin.PROPERTY_TITLE_RTE,
            CelementsCalendarPlugin.PROPERTY_TITLE_RTE,
            80,
            15);
    needsUpdate |=
        bclass.addTextAreaField(
            CelementsCalendarPlugin.PROPERTY_DESCRIPTION,
            CelementsCalendarPlugin.PROPERTY_DESCRIPTION,
            80,
            15);
    needsUpdate |=
        bclass.addTextField(
            CelementsCalendarPlugin.PROPERTY_LOCATION,
            CelementsCalendarPlugin.PROPERTY_LOCATION,
            30);
    needsUpdate |=
        bclass.addTextAreaField(
            CelementsCalendarPlugin.PROPERTY_LOCATION_RTE,
            CelementsCalendarPlugin.PROPERTY_LOCATION_RTE,
            80,
            15);
    needsUpdate |=
        bclass.addDateField(
            CelementsCalendarPlugin.PROPERTY_EVENT_DATE,
            CelementsCalendarPlugin.PROPERTY_EVENT_DATE,
            null,
            0);
    needsUpdate |=
        bclass.addDateField(
            CelementsCalendarPlugin.PROPERTY_EVENT_DATE_END,
            CelementsCalendarPlugin.PROPERTY_EVENT_DATE_END,
            null,
            0);
    needsUpdate |=
        bclass.addBooleanField(
            CelementsCalendarPlugin.PROPERTY_EVENT_IS_SUBSCRIBABLE,
            CelementsCalendarPlugin.PROPERTY_EVENT_IS_SUBSCRIBABLE,
            "yesno");

    if (!"internal".equals(bclass.getCustomMapping())) {
      needsUpdate = true;
      bclass.setCustomMapping("internal");
    }

    String content = doc.getContent();
    if ((content == null) || (content.equals(""))) {
      needsUpdate = true;
      doc.setContent(" ");
    }

    if (needsUpdate) {
      xwiki.saveDocument(doc, context);
    }
    return bclass;
  }