void
table_base::open() {
if (_is_open) throw table_open_exception();
if (_key_mapper == nullptr) throw no_primary_key_exception();
{
_database.make_enclosure_available(_binomen._enclosure);
transaction txn(_database);
const unique_ptr<sql> cmd = _database.make_sql();
cmd->write_create_table(
_binomen,
get_value_mapper_base(),
*_key_mapper,
readback_id(),
_foreign_specs
);
if (_database.get_session()->unchecked_exec(*cmd)) { // failure is benign, but in that case we needn't commit.
for (size_t i = 0; i < _index_specs.size(); i++) {
const index_spec &is = _index_specs[i];
const unique_ptr<sql> cmd = _database.make_sql();
cmd->write_create_index(_binomen, i, is._mappers, is._is_unique);
_database.get_session()->exec(*cmd);
}
txn.commit();
}
}
check_metadata();
_is_open = true;
}
std::string schema::primary_key() const {
for (auto &c : columns_) {
if (c.pk && c.autoincrement) {
return c.name;
}
}
throw no_primary_key_exception("no primary key found for schema");
}