bool PDOPgSqlStatement::getColumnMeta(int64_t colno, Array &return_value){
if (!m_result){
return false;
}
if(colno < 0 || colno >= column_count){
return false;
}
Oid coltype = m_pgsql_column_types[colno];
return_value.add(String("pgsql:oid"), (long)coltype);
std::string q = strprintf("SELECT TYPNAME FROM PG_TYPE WHERE OID=%u", coltype);
PQ::Result res = m_server->exec(q);
ExecStatusType status = res.status();
if(status != PGRES_TUPLES_OK){
return true;
}
if(res.numTuples() != 1){
return true;
}
return_value.add(String("native_type"), String(res.getValue(0, 0)));
return true;
}
String PDOPgSqlConnection::lastId(const char *name){
if (name == nullptr || strlen(name) == 0){
// This branch of code doesn't seem to ever do anything useful
// however it does pretty much the same as the zend implementation
// and that doesn't seem to provide anything useful either
if(this->pgoid == InvalidOid){
return empty_string();
}
return String((long)this->pgoid);
} else {
const char *values[1];
values[0] = name;
PQ::Result res = m_server->exec("SELECT CURRVAL($1)", 1, values);
ExecStatusType status = res.status();
if(res && (status == PGRES_TUPLES_OK)){
return String(res.getValue(0, 0), CopyString);
} else {
HANDLE_ERROR(nullptr, res);
return empty_string();
}
}
}
int PDOPgSqlConnection::getAttribute(int64_t attr, Variant &value){
switch(attr){
case PDO_ATTR_CLIENT_VERSION:
value = String(PG_VERSION);
break;
case PDO_ATTR_SERVER_VERSION:
if(m_server->protocolVersion() >= 3){ // Postgres 7.4 or later
value = String(m_server->parameterStatus("server_version"), CopyString);
} else {
PQ::Result res = m_server->exec("SELECT VERSION()");
if(res && res.status() == PGRES_TUPLES_OK){
value = String((char *)res.getValue(0, 0), CopyString);
}
}
break;
case PDO_ATTR_CONNECTION_STATUS:
switch(m_server->status()){
case CONNECTION_STARTED:
value = String("Waiting for connection to be made.", CopyString);
break;
case CONNECTION_MADE:
case CONNECTION_OK:
value = String("Connection OK; waiting to send.", CopyString);
break;
case CONNECTION_AWAITING_RESPONSE:
value = String("Waiting for a response from the server.", CopyString);
break;
case CONNECTION_AUTH_OK:
value = String(
"Received authentication; waiting for backend start-up to finish.",
CopyString
);
break;
#ifdef CONNECTION_SSL_STARTUP
case CONNECTION_SSL_STARTUP:
value = String("Negotiating SSL encryption.", CopyString);
break;
#endif
case CONNECTION_SETENV:
value = String(
"Negotiating environment-driven parameter settings.", CopyString
);
break;
case CONNECTION_BAD:
default:
value = String("Bad connection.", CopyString);
break;
}
break;
case PDO_ATTR_SERVER_INFO:
{
int spid = m_server->backendPID();
std::stringstream result;
result << "PID: ";
result << spid;
result << "; Client Encoding: ";
result << m_server->parameterStatus("client_encoding");
result << "; Is Superusser: ";
result << m_server->parameterStatus("is_superuser");
result << "; Session Authorization: ";
result << m_server->parameterStatus("session_authorization");
result << "; Date Style: ";
result << m_server->parameterStatus("DateStyle");
value = String(result.str());
}
break;
default:
return 0;
}
return 1;
}