types::Variant execute( const types::Variant& i) const
{
const CustomDataValue* cv = i.customref();
const CustomDataType* dt = cv->type();
CustomDataType::CustomDataValueMethod method = dt->getMethod( m_name);
if (!method) throw std::logic_error( "internal: calling undefined method");
return method( *cv, m_arg);
}
void Object::constructor( const types::Variant& val)
{
switch (val.type())
{
case types::Variant::Custom:
{
types::Variant baseval;
try
{
if (val.customref()->getBaseTypeValue( baseval)
&& baseval.type() != types::Variant::Custom)
{
constructor( baseval);
break;
}
}
catch (const std::runtime_error& e)
{
throw std::runtime_error( std::string("cannot convert value to base type for binding: ") + e.what());
}
constructor( val.tostring());
}
case types::Variant::Timestamp:
{
types::DateTime dt( val.totimestamp());
if (dt.subtype() == types::DateTime::YYYYMMDD)
{
m_obj = PyDate_FromDate( dt.year(), dt.month(), dt.day());
if (!m_obj) THROW_ON_ERROR( "failed to convert to python Date");
}
else
{
m_obj = PyDateTime_FromDateAndTime( dt.year(), dt.month(), dt.day(), dt.hour(), dt.minute(), dt.second(), dt.usecond());
if (!m_obj) THROW_ON_ERROR( "failed to convert to python DateTime");
}
break;
}
case types::Variant::BigNumber:
{
std::string strval = val.tostring();
if (val.bignumref()->scale() <= 0)
{
char* end = 0;
m_obj = PyLong_FromString( const_cast<char*>(strval.c_str()), &end, 10);
if (!m_obj) THROW_ON_ERROR( "failed to convert to big number (Long)");
else if (end != strval.c_str()+strval.size())
{
Py_DECREF( m_obj);
throw std::runtime_error( "superfluous characters at end of big number string");
}
}
else
{
m_obj = PyBytes_FromStringAndSize( strval.c_str(), strval.size());
if (!m_obj) THROW_ON_ERROR( "failed to convert to big number (fixed point number) as string");
}
break;
}
case types::Variant::Null:
m_obj = Py_None;
Py_INCREF( m_obj);
break;
case types::Variant::Int:
m_obj = PyLong_FromLong( val.toint());
if (!m_obj) THROW_ON_ERROR( "failed to convert to python long integer");
break;
case types::Variant::UInt:
m_obj = PyLong_FromUnsignedLong( val.touint());
if (!m_obj) THROW_ON_ERROR( "failed to convert to python unsigned long integer");
break;
case types::Variant::Bool:
m_obj = PyBool_FromLong( val.tobool()?1:0);
break;
case types::Variant::Double:
m_obj = PyFloat_FromDouble( val.todouble());
if (!m_obj) THROW_ON_ERROR( "failed to convert to python double precision floating point value");
break;
case types::Variant::String:
m_obj = PyUnicode_FromStringAndSize( val.charptr(), val.charsize());
if (!m_obj) THROW_ON_ERROR( "failed to convert to python unicode string");
break;
default:
throw std::runtime_error("try to get object for non atomic value");
}
}
void SQLiteStatement::bindVariant( const unsigned int idx, const types::Variant &value )
{
switch (value.type())
{
case types::Variant::Null:
m_rc = wrap_sqlite3_bind_null( m_stm, (int)idx);
break;
case types::Variant::Bool:
m_rc = wrap_sqlite3_bind_int( m_stm, (int)idx, value.tobool());
break;
case types::Variant::Int:
if( value.data( ).value.Int <= std::numeric_limits<signed int>::max( ) && value.data( ).value.Int >= std::numeric_limits<signed int>::min( ) ) {
m_rc = wrap_sqlite3_bind_int( m_stm, (int)idx, (signed int)value.toint());
} else {
m_rc = wrap_sqlite3_bind_int64( m_stm, (int)idx, value.toint());
}
break;
case types::Variant::UInt:
if( value.data( ).value.UInt <= (unsigned int)std::numeric_limits<signed int>::max( ) ) {
m_rc = wrap_sqlite3_bind_int( m_stm, (int)idx, (signed int)value.toint());
} else if ( value.data( ).value.UInt <= (_WOLFRAME_UINTEGER)std::numeric_limits<sqlite3_int64>::max( ) ) {
m_rc = wrap_sqlite3_bind_int64( m_stm, (int)idx, value.toint());
} else {
m_data.push_back( value.tostring());
m_rc = wrap_sqlite3_bind_text( m_stm, (int)idx, m_data.back().c_str(), m_data.back().size(), SQLITE_STATIC);
}
break;
case types::Variant::Double:
m_rc = wrap_sqlite3_bind_double( m_stm, (int)idx, value.todouble());
break;
case types::Variant::String:
m_rc = wrap_sqlite3_bind_text( m_stm, (int)idx, value.charptr(), value.charsize(), SQLITE_STATIC);
break;
case types::Variant::Timestamp:
{
m_data.push_back( types::DateTime( value.totimestamp()).tostring( types::DateTime::StringFormat::ExtendedISOdateTime));
m_rc = wrap_sqlite3_bind_text( m_stm, (int)idx, m_data.back().c_str(), m_data.back().size(), SQLITE_STATIC);
break;
}
case types::Variant::BigNumber:
{
m_data.push_back( value.tostring());
m_rc = wrap_sqlite3_bind_text( m_stm, (int)idx, m_data.back().c_str(), m_data.back().size(), SQLITE_STATIC);
break;
}
case types::Variant::Custom:
{
types::Variant baseval;
try
{
if (value.customref()->getBaseTypeValue( baseval)
&& baseval.type() != types::Variant::Custom)
{
bindVariant( idx, baseval);
break;
}
}
catch (const std::runtime_error& e)
{
throw std::runtime_error( std::string("cannot convert value to base type for binding: ") + e.what());
}
bindVariant( idx, value.tostring());
break;
}
default:
throw std::logic_error( "Binding unknown type '" + std::string( value.typeName( ) ) + "'" );
}
}