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#import "PGResultRow.h"
static id
convert_type(PGresult *res, int col, OFString *str)
convert_type(PGresult *res, int column, OFString *string)
{
switch (PQftype(res, col)) {
switch (PQftype(res, column)) {
case 16: /* BOOLOID */
if ([str isEqual: @"t"])
if ([string isEqual: @"t"])
return [OFNumber numberWithBool: YES];
else
return [OFNumber numberWithBool: NO];
case 21: /* INT2OID */
return [OFNumber numberWithInt16: (int16_t)[str decimalValue]];
return [OFNumber numberWithInt16:
(int16_t)[string decimalValue]];
case 23: /* INT4OID */
return [OFNumber numberWithInt32: (int32_t)[str decimalValue]];
return [OFNumber numberWithInt32:
(int32_t)[string decimalValue]];
case 20: /* INT8OID */
return [OFNumber numberWithInt64: (int64_t)[str decimalValue]];
return [OFNumber numberWithInt64:
(int64_t)[string decimalValue]];
case 700: /* FLOAT4OID */
return [OFNumber numberWithFloat: [str floatValue]];
return [OFNumber numberWithFloat: [string floatValue]];
case 701: /* FLOAT8OID */
return [OFNumber numberWithDouble: [str doubleValue]];
return [OFNumber numberWithDouble: [string doubleValue]];
}
return str;
return string;
}
@interface PGResultRowEnumerator: OFEnumerator
{
PGResult *result;
PGresult *res;
int row, pos, count;
PGResult *_result;
PGresult *_res;
int _row, _pos, _count;
}
- initWithResult: (PGResult*)result
row: (int)row;
@end
@interface PGResultRowKeyEnumerator: PGResultRowEnumerator
@end
@interface PGResultRowObjectEnumerator: PGResultRowEnumerator
@end
@implementation PGResultRow
+ rowWithResult: (PGResult*)result
row: (int)row
{
return [[[self alloc] initWithResult: result
row: row] autorelease];
}
- initWithResult: (PGResult*)result_
row: (int)row_
- initWithResult: (PGResult*)result
row: (int)row
{
self = [super init];
result = [result_ retain];
res = [result PG_result];
row = row_;
_result = [result retain];
_res = [result PG_result];
_row = row;
return self;
}
- (void)dealloc
{
[result release];
[_result release];
[super dealloc];
}
- (size_t)count
{
int i, count, fields = PQnfields(res);
int i, count, fields = PQnfields(_res);
for (i = count = 0; i < fields; i++)
if (!PQgetisnull(res, row, i))
if (!PQgetisnull(_res, _row, i))
count++;
return count;
}
- (id)objectForKey: (id)key
{
int col;
int column;
if ([key isKindOfClass: [OFNumber class]])
col = [key intValue];
column = [key intValue];
else
col = PQfnumber(res, [key UTF8String]);
column = PQfnumber(_res, [key UTF8String]);
if (PQgetisnull(res, row, col))
if (PQgetisnull(_res, _row, column))
return nil;
return convert_type(res, col,
[OFString stringWithUTF8String: PQgetvalue(res, row, col)]);
return convert_type(_res, column,
[OFString stringWithUTF8String: PQgetvalue(_res, _row, column)]);
}
- (OFEnumerator*)keyEnumerator
{
return [[[PGResultRowKeyEnumerator alloc]
initWithResult: result
row: row] autorelease];
initWithResult: _result
row: _row] autorelease];
}
- (OFEnumerator*)objectEnumerator
{
return [[[PGResultRowObjectEnumerator alloc]
initWithResult: result
row: row] autorelease];
initWithResult: _result
row: _row] autorelease];
}
- (int)countByEnumeratingWithState: (of_fast_enumeration_state_t*)state
objects: (id*)objects
count: (int)count
{
int i, j;
if (state->extra[0] == 0) {
state->extra[0] = 1;
state->extra[1] = PQnfields(res);
state->extra[1] = PQnfields(_res);
}
if (count > SIZE_MAX - state->state)
@throw [OFOutOfRangeException exceptionWithClass: [self class]];
if (state->state + count > state->extra[1])
count = state->extra[1] - state->state;
for (i = j = 0; i < count; i++) {
if (PQgetisnull(res, row, state->state + i))
if (PQgetisnull(_res, _row, state->state + i))
continue;
objects[j++] = [OFString stringWithUTF8String:
PQfname(res, state->state + i)];
PQfname(_res, state->state + i)];
}
state->state += count;
state->itemsPtr = objects;
state->mutationsPtr = (unsigned long*)self;
return j;
}
@end
@implementation PGResultRowEnumerator
- initWithResult: (PGResult*)result_
row: (int)row_
- initWithResult: (PGResult*)result
row: (int)row
{
self = [super init];
result = [result_ retain];
res = [result PG_result];
row = row_;
count = PQnfields(res);
_result = [result retain];
_res = [result PG_result];
_row = row;
_count = PQnfields(_res);
return self;
}
- (void)dealloc
{
[result release];
[_result release];
[super dealloc];
}
- (void)reset
{
pos = 0;
_pos = 0;
}
@end
@implementation PGResultRowKeyEnumerator
- (id)nextObject
{
if (pos >= count)
if (_pos >= _count)
return nil;
while (pos < count && PQgetisnull(res, row, pos))
pos++;
while (_pos < _count && PQgetisnull(_res, _row, _pos))
_pos++;
if (pos >= count)
if (_pos >= _count)
return nil;
return [OFString stringWithUTF8String: PQfname(res, pos++)];
return [OFString stringWithUTF8String: PQfname(_res, _pos++)];
}
@end
@implementation PGResultRowObjectEnumerator
- (id)nextObject
{
if (pos >= count)
if (_pos >= _count)
return nil;
while (pos < count && PQgetisnull(res, row, pos))
pos++;
while (_pos < _count && PQgetisnull(_res, _row, _pos))
_pos++;
if (pos >= count)
if (_pos >= _count)
return nil;
return convert_type(res, pos,
[OFString stringWithUTF8String: PQgetvalue(res, row, pos++)]);
return convert_type(_res, _pos,
[OFString stringWithUTF8String: PQgetvalue(_res, _row, _pos++)]);
}
@end
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