switchable S caseID;
transient Concepts cc = db_mainConcepts();
transient Class<A> conceptClass;
transient SimpleCRUD<A> crud;
transient bool addCountToName = true, addCountToName_installed;
transient bool ensureIndexed;

void start_DynCRUD {
  ifndef NoMainConcepts // set flag to save space
  if (cc == db_mainConcepts())
    dbWithCase(caseID); // So we can do stuff in overridden start methods
  endifndef
  crud = makeCRUD(); // so we can customize early
  if (addCountToName) addCountToName();
}

JComponent visualizeWithCountInTab() {
  JComponent c = visualize();
  bindToComponent(table(), r updateTabTitle);
  temp tempSetTL(awtOnConceptChanges_concepts, cc);
  awtOnConceptChanges(table(), r updateTabTitle);
  ret c;
}

void updateTabTitle {
  updateEnclosingTabTitleWithCount(table(), conceptCount());
}

visualize {
  if (crud == null) start_DynCRUD();
  makeConceptsTable_idWidth = 0;
  showConceptsTable_afterUpdate.set(voidfunc(JTable t) {
    int n = tableColumnCount(t);
    for i to n:
      setColumnName(t, i, i == 0 ? "" : humanizeFormLabel(getColumnName(t, i)));
  });
  ret withMargin(crud.make_dontStartBots());
}

SimpleCRUD<A> makeCRUD() {
  var crud = SimpleCRUD<A>(cc, conceptClass);
  crud.ensureIndexed = ensureIndexed;
  ret crud;
}

JTable table() { ret crud == null ? null : crud.table; }

A selected() { ret crud == null ? null : crud.selectedConcept(); }

void addButton(JComponent button) {
  if (crud != null) addComponent(crud.buttons, button);
}
void addButton(S name, O action) { addButton(jbutton(name, action)); }
void addSelectionDependentButton(S name, O action) {
  addButton(tableDependentButton(table(), name, toRunnable(action)));
}

void makeSortable() { // broken?
  addRowSorter(table());
  rowSorter_setComparatorForAllColumns(table(), alphaNumComparator());
}

S searchTerm() {
  ret crud == null || crud.tableSearcher == null ? null : gtt(crud.tableSearcher.tfInput);
}

void addCountToName {
  if (addCountToName_installed) ret;
  addCountToName_installed = true;
  onConceptChangeAndNow(cc, rEnter { setModuleName(dm_originalModuleName() + " (" + conceptCount() + ")") });
}

Concepts conceptsObject() {
  ret crud.concepts;
}

// overwrite for compact modules to work

<B extends Concept> L<B> list(Class<B> c) {
  ret conceptsObject().list(c);
}

// API

L<A> concepts() enter { ret list(conceptClass); }
L<A> data() { ret concepts(); }
L<A> list() { ret concepts(); }

L<Concept> conceptsOfType(S type) enter { ret conceptsObject().list(type); }

// TODO: use index
L<Concept> conceptsOfTypeWhere(S type, O[] params) enter {
  ret filterConcepts(conceptsOfType(type), params);
}

int conceptCount() enter { ret countConcepts(cc, conceptClass); }

void deleteAll() enter {
  deleteConcepts(cc, conceptClass);
}

void addDialog() enter { crud.newConcept(); }

A uniqConcept(O... params) {
  ret uniq_sync(cc, conceptClass, params);
}

Pair<A, Bool> uniqConcept2(O... params) {
  ret uniq2_sync(cc, conceptClass, params);
}

int cset(Concept c, O... values) {
  ret _cset(c, values);
}