ObjPgSQL  Check-in [7b335b3af8]

Overview
Comment:Add -[insertRows:intoTable:].
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SHA3-256: 7b335b3af81d4506f2842748671541073f4c455b4a0ce8a108eab0d43280f3ad
User & Date: js 2012-10-06 21:02:02
Context
2012-10-07
22:45
Convert types using the result of PQftypes(). check-in: 4a2b1fff7e user: js tags: trunk
2012-10-06
21:02
Add -[insertRows:intoTable:]. check-in: 7b335b3af8 user: js tags: trunk
2012-10-05
21:26
Install all headers into one place. check-in: 86adc6aab9 user: js tags: trunk
Changes
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Changes to ObjPgSQL.xcodeproj/project.pbxproj.

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			);
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			buildSettings = {
				COMBINE_HIDPI_IMAGES = YES;
				DYLIB_COMPATIBILITY_VERSION = 1;
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				INFOPLIST_FILE = Info.plist;
				LIBRARY_SEARCH_PATHS = (
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				PRODUCT_NAME = "$(TARGET_NAME)";
				WRAPPER_EXTENSION = framework;
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			name = Release;
		};
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Changes to PGConnection.h.

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- (OFDictionary*)parameters;
- (void)connect;
- (void)reset;
- (PGResult*)executeCommand: (OFString*)command;
- (PGResult*)executeCommand: (OFString*)command
		 parameters: (id)firstParameter, ...;
- (PGconn*)PG_connection;
- (void)insertRow: (OFDictionary*)row
	intoTable: (OFString*)table;
- (void)insertRows: (OFArray*)rows
	 intoTable: (OFString*)table;
@end

Changes to PGConnection.m.

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	if (PQresultStatus(result) == PGRES_TUPLES_OK)
		return [PGResult PG_resultWithResult: result];

	PQclear(result);
	return nil;
}

- (void)insertRow: (OFDictionary*)row
	intoTable: (OFString*)table
{
	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
	OFMutableString *command;
	OFEnumerator *enumerator;
	const char **values;
	PGresult *result;
	OFString *key, *value;
	size_t i, count;

	command = [OFMutableString stringWithString: @"INSERT INTO "];
	[command appendString: table];
	[command appendString: @" ("];

	count = [row count];

	i = 0;
	enumerator = [row keyEnumerator];
	while ((key = [enumerator nextObject]) != nil) {
		if (i > 0)
			[command appendString: @", "];

		[command appendString: key];

		i++;
	}

	[command appendString: @") VALUES ("];

	values = [self allocMemoryWithSize: sizeof(*values)
				     count: count];
	@try {
		i = 0;
		enumerator = [row objectEnumerator];
		while ((value = [enumerator nextObject]) != nil) {
			if (i > 0)
				[command appendString: @", "];

			values[i] = [value UTF8String];

			[command appendFormat: @"$%zd", ++i];
		}

		[command appendString: @")"];

		result = PQexecParams(conn, [command UTF8String], (int)count,
		    NULL, values, NULL, NULL, 0);
	} @finally {
		[self freeMemory: values];
	}

	[pool release];

	if (PQresultStatus(result) != PGRES_COMMAND_OK) {
		PQclear(result);
		@throw [PGCommandFailedException
		    exceptionWithClass: [self class]
			    connection: self
			       command: command];
	}

	PQclear(result);
}

- (void)insertRows: (OFArray*)rows
	 intoTable: (OFString*)table
{
	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
	OFEnumerator *enumerator = [rows objectEnumerator];
	OFDictionary *row;

	while ((row = [enumerator nextObject]) != nil)
		[self insertRow: row
		      intoTable: table];

	[pool release];
}

- (PGconn*)PG_connection
{
	return conn;
}
@end

Changes to test.m.

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				    @")"];
	[connection executeCommand: @"INSERT INTO test (id, name, content) "
				    @"VALUES($1, $2, $3)"
			parameters: @"1", @"foo", @"Hallo Welt!", nil];
	[connection executeCommand: @"INSERT INTO test (id, content) "
				    @"VALUES($1, $2)"
			parameters: @"2", @"Blup!!", nil];
	[connection insertRow: @{ @"content": @"Hallo!", @"name": @"foo" }
		    intoTable: @"test"];

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

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