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#include <stdlib.h>
#include <string.h>
#include "dbmi.h"
#include "globals.h"
#include "proto.h"
#include "glocale.h"
int
db__driver_fetch(cn, position, more)
dbCursor *cn;
int position;
int *more;
{
cursor *c;
dbToken token;
dbTable *table;
int i;
/* get cursor token */
token = db_get_cursor_token(cn);
/* get the cursor by its token */
if (!(c = (cursor *) db_find_token(token))) {
append_error ("Cursor not found");
report_error();
return DB_FAILED;
}
/* fetch on position */
switch (position)
{
case DB_NEXT:
c->row++;
break;
case DB_CURRENT:
break;
case DB_PREVIOUS:
c->row--;
break;
case DB_FIRST:
c->row = 0;
break;
case DB_LAST:
c->row = c->nrows - 1;
break;
};
G_debug ( 3, "row = %d nrows = %d", c->row, c->nrows );
if ( c->row < 0 || c->row >= c->nrows ) {
*more = 0;
return DB_OK;
}
*more = 1;
/* get the data out of the descriptor into the table */
table = db_get_cursor_table(cn);
for (i = 0; i < c->ncols; i++) {
int col, gpgtype, sqltype;
dbColumn *column;
dbValue *value;
col = c->cols[i]; /* known cols */
column = db_get_table_column (table, i);
gpgtype = db_get_column_host_type(column);
sqltype = db_get_column_sqltype(column);
value = db_get_column_value (column);
db_zero_string (&value->s);
/* Is null? */
if ( PQgetisnull(c->res, c->row, col ) ) {
value->isNull = 1;
continue;
} else {
value->isNull = 0;
}
G_debug (3, "row %d, col %d, gpgtype %d, sqltype %d: val = '%s'",
c->row, col, gpgtype, sqltype, PQgetvalue(c->res, c->row, col) );
switch (gpgtype) {
int ns, tz;
case PG_TYPE_CHAR:
case PG_TYPE_BPCHAR:
case PG_TYPE_VARCHAR:
case PG_TYPE_TEXT:
db_set_string ( &(value->s), PQgetvalue(c->res, c->row, col) );
break;
case PG_TYPE_INT2:
case PG_TYPE_INT4:
case PG_TYPE_INT8:
case PG_TYPE_SERIAL:
case PG_TYPE_OID:
value->i = atoi ( PQgetvalue(c->res, c->row, col) );
break;
case PG_TYPE_FLOAT4:
case PG_TYPE_FLOAT8:
case PG_TYPE_NUMERIC:
value->d = atof ( PQgetvalue(c->res, c->row, col) );
break;
/* Note: we have set DATESTYLE TO ISO in db_driver_open_select_cursor() so datetime
* format should be ISO */
case PG_TYPE_DATE:
/* Example: '1999-01-25' */
ns = sscanf( PQgetvalue(c->res, c->row, col), "%4d-%2d-%2d",
&(value->t.year), &(value->t.month), &(value->t.day) );
if ( ns != 3 ) {
append_error ( "Cannot scan date:");
append_error ( PQgetvalue(c->res, c->row, col) );
report_error();
return DB_FAILED;
}
value->t.hour = 0;
value->t.minute = 0;
value->t.seconds = 0.0;
break;
case PG_TYPE_TIME:
/* Example: '04:05:06.25', '04:05:06' */
ns = sscanf( PQgetvalue(c->res, c->row, col), "%2d:%2d:%lf",
&(value->t.hour), &(value->t.minute), &(value->t.seconds) );
if ( ns != 3 ) {
append_error ( "Cannot scan time:");
append_error ( PQgetvalue(c->res, c->row, col) );
report_error();
return DB_FAILED;
}
value->t.year = 0;
value->t.month = 0;
value->t.day = 0;
break;
case PG_TYPE_TIMESTAMP:
/* Example: '1999-01-25 04:05:06.25+01', '1999-01-25 04:05:06+01' */
ns = sscanf( PQgetvalue(c->res, c->row, col), "%4d-%2d-%2d %2d:%2d:%lf%3d",
&(value->t.year), &(value->t.month), &(value->t.day),
&(value->t.hour), &(value->t.minute), &(value->t.seconds), &tz );
if ( ns != 7 ) {
append_error ( "Cannot scan timestamp:");
append_error ( PQgetvalue(c->res, c->row, col) );
report_error();
return DB_FAILED;
}
break;
case PG_TYPE_BOOL:
if ( strcmp ( PQgetvalue(c->res, c->row, col), "t") == 0 )
db_set_string ( &(value->s), "1");
else if ( strcmp ( PQgetvalue(c->res, c->row, col), "f") == 0 )
db_set_string ( &(value->s), "0" );
else
G_warning (_("Cannot recognize boolean value"));
break;
}
}
G_debug (3, "Row fetched" );
return DB_OK;
}
int
db__driver_get_num_rows (cn )
dbCursor *cn;
{
cursor *c;
dbToken token;
/* get cursor token */
token = db_get_cursor_token(cn);
/* get the cursor by its token */
if (!(c = (cursor *) db_find_token(token))) {
append_error("Cursor not found");
report_error();
return DB_FAILED;
}
return ( c->nrows );
}
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