ObjPgSQL  Check-in [6d068f6ae7]

Overview
Comment:Exclude fields that are NULL from the result.
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SHA3-256: 6d068f6ae7e9cc62599ef05dfea2ae44890d8f4a3a142724180b165ce59d06ff
User & Date: js on 2012-10-04 22:18:32
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Context
2012-10-05
20:17
Nicer API. check-in: d2fe40f160 user: js tags: trunk
2012-10-04
22:18
Exclude fields that are NULL from the result. check-in: 6d068f6ae7 user: js tags: trunk
2012-10-03
16:08
Add ObjPgSQL.h. check-in: 9b7427552b user: js tags: trunk
Changes
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Modified PGResultRow.m from [e0031934f9] to [a383c54406].

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	[result release];

	[super dealloc];
}

- (size_t)count
{
	size_t i, count, fields = PQnfields(res);

	for (i = count = 0; i < fields; i++)
		if (!PQgetisnull(res, row, i))
			count++;

	return PQnfields(res);
	return count;
}

- (id)objectForKey: (id)key
{
	int col;

	if ([key isKindOfClass: [OFNumber class]])
		col = [key intValue];
	else
		col = PQfnumber(res, [key UTF8String]);

	if (PQgetisnull(res, row, col))
		return nil;

	return [OFString stringWithUTF8String: PQgetvalue(res, row, col)];
}

- (OFEnumerator*)keyEnumerator
{
	return [[[PGResultRowKeyEnumerator alloc]
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@end

@implementation PGResultRowKeyEnumerator
- (id)nextObject
{
	if (pos >= count)
		return nil;

	while (pos < count && PQgetisnull(res, row, pos))
		pos++;

	if (pos >= count)
		return nil;

	return [OFString stringWithUTF8String: PQfname(res, pos++)];
}
@end

@implementation PGResultRowObjectEnumerator
- (id)nextObject
{
	if (pos >= count)
		return nil;

	while (pos < count && PQgetisnull(res, row, pos))
		pos++;

	if (pos >= count)
		return nil;

	return [OFString stringWithUTF8String: PQgetvalue(res, row, pos++)];
}
@end

Modified test.m from [777240ca2a] to [e494e1ab6f].

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				    @"    id integer,"
				    @"    name varchar(255),"
				    @"    content text"
				    @")"];
	[connection executeCommand: @"INSERT INTO test (id, name, content) "
				    @"VALUES($1, $2, $3)"
			parameters: @[@"1", @"foo", @"Hallo Welt!"]];
	[connection executeCommand: @"INSERT INTO test (id, name, content) "
				    @"VALUES($1, $2, $3)"
			parameters: @[@"2", @"bla", @"Blup!!"]];
	[connection executeCommand: @"INSERT INTO test (id, content) "
				    @"VALUES($1, $2)"
			parameters: @[@"2", @"Blup!!"]];

	result = [connection executeCommand: @"SELECT * FROM test"];
	of_log(@"%@", result);
	of_log(@"JSON: %@", [result JSONRepresentation]);

	[OFApplication terminate];
}
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