private final <T> void setValue(int index, Field<T> field, T value) {
Value<T> val = getValue0(index);
UniqueKey<?> key = getPrimaryKey();
// Normal fields' changed flag is always set to true
if (key == null || !key.getFields().contains(field)) {
val.setValue(value);
}
// The primary key's changed flag might've been set previously
else if (val.isChanged()) {
val.setValue(value);
}
// [#2764] Users may override updatability of primary key values
else if (updatablePrimaryKeys(settings(this))) {
val.setValue(value);
}
// [#2698] If the primary key has not yet been set
else if (val.getOriginal() == null) {
val.setValue(value);
}
// [#979] If the primary key is being changed, all other fields' flags
// need to be set to true for in case this record is stored again, an
// INSERT statement will thus be issued
else {
val.setValue(value, true);
if (val.isChanged()) {
changed(true);
}
}
}
@Override
public final Result<O> fetchParents(Collection<? extends R> records) {
if (records == null || records.size() == 0) {
return new ResultImpl<O>(new DefaultConfiguration(), key.getFields());
} else {
return fetch(records, key.getTable(), key.getFieldsArray(), getFieldsArray());
}
}
@SuppressWarnings("unchecked")
public static <T extends UpdatableRecord<?>> T findById(
DSLContext context, Class<T> clz, Object id) {
if (id == null) return null;
Table<?> table = getTableFromRecordClass(clz);
if (table == null) return null;
UniqueKey<?> key = table.getPrimaryKey();
if (key == null || key.getFieldsArray().length != 1) return null;
TableField<?, Object> keyField = (TableField<?, Object>) key.getFieldsArray()[0];
/* Convert object because we are abusing type safety here */
Object converted = keyField.getDataType().convert(id);
return (T) context.selectFrom(table).where(keyField.eq(converted)).fetchOne();
}