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#include <sqlext.h>
#include <stdio.h>
#include <stdlib.h>
#include "column.h"
#include "command.h"
#include "selectcommand.h"
#include "error.h"
ODBC::Column::Column(SelectCommand * sc, const Glib::ustring & n, unsigned int i) :
colNo(i),
name(n),
selectCmd(sc),
composeCache(NULL)
{
bindLen = 0;
}
ODBC::Column::~Column()
{
delete composeCache;
}
void
ODBC::Column::resize(SQLHANDLE hStmt)
{
}
void
ODBC::CharArrayColumn::resize(SQLHANDLE hStmt)
{
if (bindLen >= SQLLEN(data.size())) {
data.resize(bindLen + 1);
Column::bind();
if (paramCmd) {
paramBound = false;
Param::bind();
}
}
}
void
ODBC::Column::onScroll()
{
delete composeCache;
composeCache = NULL;
}
bool
ODBC::Column::isNull() const
{
return (bindLen == SQL_NULL_DATA);
}
void
ODBC::Column::rebind(Command * cmd, unsigned int idx) const
{
meAsAParam()->paramCmd = cmd;
meAsAParam()->paramIdx = idx;
meAsAParam()->bind();
}
void
ODBC::Column::bind()
{
RETCODE rc = SQLBindCol(selectCmd->hStmt, colNo + 1, ctype(), rwDataAddress(), size(), &bindLen);
if (rc != SQL_SUCCESS) {
throw Error(rc, SQL_HANDLE_STMT, selectCmd->hStmt, "%s: Bind column %u", __FUNCTION__, colNo);
}
}
#define SIMPLEFORMATTER(ctype, deffmtstr) \
int \
ODBC::ctype::writeToBuf(char ** buf, const char * fmt) const \
{ \
return asprintf(buf, fmt, data); \
} \
int \
ODBC::ctype::writeToBuf(char ** buf) const \
{ \
return writeToBuf(buf, deffmtstr); \
} \
const Glib::ustring & \
ODBC::ctype::compose() const \
{ \
if (!composeCache) { \
composeCache = new Glib::ustring(Glib::ustring::compose("%1", data)); \
} \
return *composeCache; \
} \
Glib::ustring \
ODBC::ctype::compose(const Glib::ustring & fmt) const \
{ \
return Glib::ustring::compose(fmt, data); \
}
SIMPLEFORMATTER(FloatingPointColumn, "%g");
SIMPLEFORMATTER(SignedIntegerColumn, "%ld");
#ifdef COMPLETENESS
SIMPLEFORMATTER(UnsignedIntegerColumn, "%lu");
#endif
int
ODBC::CharArrayColumn::writeToBuf(char ** buf, const char * fmt) const
{
return asprintf(buf, fmt, &data[0]);
}
int
ODBC::CharArrayColumn::writeToBuf(char ** buf) const
{
return writeToBuf(buf, "%s");
}
const Glib::ustring &
ODBC::CharArrayColumn::compose() const
{
if (!composeCache) {
composeCache = new Glib::ustring(&data.front(), &data[bindLen]);
}
return *composeCache;
}
Glib::ustring
ODBC::CharArrayColumn::compose(const Glib::ustring & fmt) const
{
return Glib::ustring::compose(fmt, &data.front());
}
int
ODBC::TimeStampColumn::writeToBuf(char ** buf, const char * fmt) const
{
*buf = (char *)malloc(300);
struct tm t;
t << data;
return strftime(*buf, 300, fmt, &t);
}
int
ODBC::TimeStampColumn::writeToBuf(char ** buf) const
{
return writeToBuf(buf, "%F %T");
}
Glib::ustring
ODBC::TimeStampColumn::compose(const Glib::ustring & fmt) const
{
char buf[300];
struct tm t;
t << data;
int len = strftime(buf, sizeof(buf), fmt.c_str(), &t);
return Glib::ustring(buf, len);
}
const Glib::ustring &
ODBC::TimeStampColumn::compose() const
{
if (!composeCache) {
composeCache = new Glib::ustring(Glib::ustring(compose("%F %T")));
}
return *composeCache;
}
ODBC::TimeStampColumn::operator tm() const
{
struct tm t;
t << data;
return t;
}
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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