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#include <sqlext.h>
#include <stdio.h>
#include <stdlib.h>
#include "column.h"
#include "command.h"
#include "error.h"
ODBC::Column::Column(const Glib::ustring & n, unsigned int i) :
colNo(i),
name(n),
composeCache(NULL),
bindSize(0)
{
}
ODBC::Column::~Column()
{
delete composeCache;
}
void
ODBC::Column::resize(SQLHANDLE hStmt)
{
}
void
ODBC::StringColumn::resize(SQLHANDLE hStmt)
{
if (bindSize < bindLen) {
value.resize(bindLen + 1);
bindSize = bindLen;
bind(hStmt, colNo + 1, SQL_C_CHAR, &value[0], bindSize + 1);
}
}
bool
ODBC::Column::isNull() const
{
return (bindLen == SQL_NULL_DATA);
}
#define ODBC_DEFAULT_COLUMN_CAST(ctype, rtype) \
ODBC::Column::operator rtype() const { \
return (dynamic_cast<const _Column<ctype>& >(*this)).value; \
}
ODBC_DEFAULT_COLUMN_CAST(SQLINTEGER, unsigned int);
ODBC_DEFAULT_COLUMN_CAST(SQLINTEGER, unsigned long long);
ODBC_DEFAULT_COLUMN_CAST(SQLINTEGER, long long);
ODBC_DEFAULT_COLUMN_CAST(SQLINTEGER, int);
ODBC_DEFAULT_COLUMN_CAST(SQLDOUBLE, double);
ODBC_DEFAULT_COLUMN_CAST(SQLDOUBLE, float);
ODBC::Column::operator Glib::ustring() const {
return Glib::ustring((const char *)((dynamic_cast<const _Column<SQLCHAR*>& >(*this)).value));
}
ODBC::Column::operator std::string() const {
return (const char*)((dynamic_cast<const _Column<SQLCHAR*>& >(*this)).value);
}
ODBC::Column::operator const char * () const {
return (const char*)((dynamic_cast<const _Column<SQLCHAR*>& >(*this)).value);
}
ODBC::Column::operator struct tm () const {
const _Column<SQL_TIMESTAMP_STRUCT>& c = dynamic_cast<const _Column<SQL_TIMESTAMP_STRUCT>& >(*this);
struct tm rtn;
rtn << c.value;
return rtn;
}
void
ODBC::Column::bind(SQLHANDLE hStmt, SQLUINTEGER col, SQLSMALLINT ctype, void * buf, size_t size)
{
bindSize = size;
RETCODE rc = SQLBindCol(hStmt, col, ctype, buf, bindSize, &bindLen);
if (rc != SQL_SUCCESS) {
throw Error(rc, SQL_HANDLE_STMT, hStmt, "%s: Bind column %lu", __FUNCTION__, col);
}
}
#define REBIND(t, p) \
template<> void _Column<t>::rebind(Command * cmd, unsigned int col) const \
{ \
cmd->p(col, value); \
}
namespace ODBC {
REBIND(int, bindParamI)
REBIND(long, bindParamI)
REBIND(unsigned int, bindParamI)
REBIND(long unsigned int, bindParamI)
REBIND(long long unsigned int, bindParamI)
REBIND(double, bindParamF)
REBIND(float, bindParamF)
REBIND(SQL_TIMESTAMP_STRUCT, bindParamT)
template<>
void
_Column<SQLCHARVEC>::rebind(Command * cmd, unsigned int col) const \
{
cmd->bindParamS(col, &value[0]);
}
template <>
int
_Column<SQLDOUBLE>::writeToBuf(char ** buf, const char * fmt) const
{
return asprintf(buf, fmt, value);
}
template <>
int
_Column<SQLDOUBLE>::writeToBuf(char ** buf) const
{
return writeToBuf(buf, "%g");
}
template <>
const Glib::ustring &
_Column<SQLDOUBLE>::compose() const
{
if (!composeCache) {
composeCache = new Glib::ustring(Glib::ustring::compose("%1", value));
}
return *composeCache;
}
template <>
Glib::ustring
_Column<SQLDOUBLE>::compose(const Glib::ustring & fmt) const
{
return Glib::ustring::compose(fmt, value);
}
template <>
int
_Column<SQLINTEGER>::writeToBuf(char ** buf, const char * fmt) const
{
return asprintf(buf, fmt, value);
}
template <>
int
_Column<SQLINTEGER>::writeToBuf(char ** buf) const
{
return writeToBuf(buf, "%ld");
}
template <>
const Glib::ustring &
_Column<SQLINTEGER>::compose() const
{
if (!composeCache) {
composeCache = new Glib::ustring(Glib::ustring::compose("%1", value));
}
return *composeCache;
}
template <>
Glib::ustring
_Column<SQLINTEGER>::compose(const Glib::ustring & fmt) const
{
return Glib::ustring::compose(fmt, value);
}
template <>
int
_Column<SQLCHARVEC>::writeToBuf(char ** buf, const char * fmt) const
{
return asprintf(buf, fmt, &value[0]);
}
template <>
int
_Column<SQLCHARVEC>::writeToBuf(char ** buf) const
{
return writeToBuf(buf, "%s");
}
template <>
const Glib::ustring &
_Column<SQLCHARVEC>::compose() const
{
if (!composeCache) {
composeCache = new Glib::ustring((const char *)&value[0]);
}
return *composeCache;
}
template <>
Glib::ustring
_Column<SQLCHARVEC>::compose(const Glib::ustring & fmt) const
{
return Glib::ustring::compose(fmt, &value[0]);
}
template <>
int
_Column<SQL_TIMESTAMP_STRUCT>::writeToBuf(char ** buf, const char * fmt) const
{
*buf = (char *)malloc(300);
struct tm t;
t << value;
return strftime(*buf, 300, fmt, &t);
}
template <>
int
_Column<SQL_TIMESTAMP_STRUCT>::writeToBuf(char ** buf) const
{
return writeToBuf(buf, "%F %T");
}
template <>
Glib::ustring
_Column<SQL_TIMESTAMP_STRUCT>::compose(const Glib::ustring & fmt) const
{
char buf[300];
struct tm t;
t << value;
int len = strftime(buf, sizeof(buf), fmt.c_str(), &t);
return Glib::ustring(buf, len);
}
template <>
const Glib::ustring &
_Column<SQL_TIMESTAMP_STRUCT>::compose() const
{
if (!composeCache) {
composeCache = new Glib::ustring(Glib::ustring(compose("%F %T")));
}
return *composeCache;
}
}
void operator << (SQL_TIMESTAMP_STRUCT & target, const struct tm & src)
{
target.year = src.tm_year + 1900;
target.month = src.tm_mon + 1;
target.day = src.tm_mday;
target.hour = src.tm_hour;
target.minute = src.tm_min;
target.second = src.tm_sec;
target.fraction = 0;
}
void operator << (struct tm & target, const SQL_TIMESTAMP_STRUCT & src)
{
target.tm_year = src.year - 1900;
target.tm_mon = src.month - 1;
target.tm_mday = src.day;
target.tm_hour = src.hour;
target.tm_min = src.minute;
target.tm_sec = src.second;
}
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