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<b>Warning</b>:  session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
sclass HMultiCRUD extends HAbstractRenderable {
  Concepts cc = db_mainConcepts();
  L<Class<? extends Concept>> classes;
  bool mutationRights;
  
  *(S *baseLink, Class<? extends Concept>... classes) {
    this(classes);
  }
  
  *(Class<? extends Concept>... classes) {
    this.classes = asList(classes);
  }
  
  S renderNavi() {
    ret p(joinWithVBar(map(classes, c -> ahref(baseLinkPlus(shortName(c)), shortName(c)))));
  }

  O renderPage(S uri, SS params) {
    LS parts = tok_splitAtSlash_nempties(uri);
    S html = renderNavi();
    Var<S> title = new(mainTitle);
    if (nempty(parts)) {
      HCRUD crud = makeCRUD(first(parts));
      if (crud != null) {
        crud.mutationRights = mutationRights;
        crud.baseLink = baseLinkPlus(first(parts));
        crud.makeFrame = (title2, contents) -> {
          title.set(title! + " | " + title2);
          ret h3(title2) + contents;
        };
        html += crud.renderPage(params);
        title = crud
      }
    }
    //ret "parts: " + sfu(parts);
    ret frame(title, html);
  }
  
  selfType mutationRights(bool mutationRights) {
    this.mutationRights = mutationRights;
    this;
  }
  
  // override me
  HCRUD makeCRUD(S className) {
    null;
  }
}