fmdb.m
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#import <Foundation/Foundation.h>
#import "FMDatabase.h"
#import "FMDatabaseAdditions.h"
#define FMDBQuickCheck(SomeBool) { if (!(SomeBool)) { NSLog(@"Failure on line %d", __LINE__); return 123; } }
int main (int argc, const char * argv[]) {
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
// delete the old db.
NSFileManager *fileManager = [NSFileManager defaultManager];
[fileManager removeFileAtPath:@"/tmp/tmp.db" handler:nil];
FMDatabase* db = [FMDatabase databaseWithPath:@"/tmp/tmp.db"];
if (![db open]) {
NSLog(@"Could not open db.");
[pool release];
return 0;
}
// kind of experimentalish.
[db setShouldCacheStatements:YES];
// create a bad statement, just to test the error code.
[db executeUpdate:@"blah blah blah"];
FMDBQuickCheck([db hadError]);
if ([db hadError]) {
NSLog(@"Err %d: %@", [db lastErrorCode], [db lastErrorMessage]);
}
// but of course, I don't bother checking the error codes below.
// Bad programmer, no cookie.
[db executeUpdate:@"create table test (a text, b text, c integer, d double, e double)"];
[db beginTransaction];
int i = 0;
while (i++ < 20) {
[db executeUpdate:@"insert into test (a, b, c, d, e) values (?, ?, ?, ?, ?)" ,
@"hi'", // look! I put in a ', and I'm not escaping it!
[NSString stringWithFormat:@"number %d", i],
[NSNumber numberWithInt:i],
[NSDate date],
[NSNumber numberWithFloat:2.2f]];
}
[db commit];
// do it again, just because
[db beginTransaction];
i = 0;
while (i++ < 20) {
[db executeUpdate:@"insert into test (a, b, c, d, e) values (?, ?, ?, ?, ?)" ,
@"hi again'", // look! I put in a ', and I'm not escaping it!
[NSString stringWithFormat:@"number %d", i],
[NSNumber numberWithInt:i],
[NSDate date],
[NSNumber numberWithFloat:2.2f]];
}
[db commit];
FMResultSet *rs = [db executeQuery:@"select rowid,* from test where a = ?", @"hi'"];
while ([rs next]) {
// just print out what we've got in a number of formats.
NSLog(@"%d %@ %@ %@ %@ %f %f",
[rs intForColumn:@"c"],
[rs stringForColumn:@"b"],
[rs stringForColumn:@"a"],
[rs stringForColumn:@"rowid"],
[rs dateForColumn:@"d"],
[rs doubleForColumn:@"d"],
[rs doubleForColumn:@"e"]);
if (!([[rs columnNameForIndex:0] isEqualToString:@"rowid"] &&
[[rs columnNameForIndex:1] isEqualToString:@"a"])
) {
NSLog(@"WHOA THERE BUDDY, columnNameForIndex ISN'T WORKING!");
return 7;
}
}
// close the result set.
// it'll also close when it's dealloc'd, but we're closing the database before
// the autorelease pool closes, so sqlite will complain about it.
[rs close];
// ----------------------------------------------------------------------------------------
// blob support.
[db executeUpdate:@"create table blobTable (a text, b blob)"];
// let's read in an image from safari's app bundle.
NSData *safariCompass = [NSData dataWithContentsOfFile:@"/Applications/Safari.app/Contents/Resources/compass.icns"];
if (safariCompass) {
[db executeUpdate:@"insert into blobTable (a, b) values (?,?)", @"safari's compass", safariCompass];
rs = [db executeQuery:@"select b from blobTable where a = ?", @"safari's compass"];
if ([rs next]) {
safariCompass = [rs dataForColumn:@"b"];
[safariCompass writeToFile:@"/tmp/compass.icns" atomically:NO];
// let's look at our fancy image that we just wrote out..
system("/usr/bin/open /tmp/compass.icns");
// ye shall read the header for this function, or suffer the consequences.
safariCompass = [rs dataNoCopyForColumn:@"b"];
[safariCompass writeToFile:@"/tmp/compass_data_no_copy.icns" atomically:NO];
system("/usr/bin/open /tmp/compass_data_no_copy.icns");
}
else {
NSLog(@"Could not select image.");
}
[rs close];
}
else {
NSLog(@"Can't find compass image..");
}
// test out the convenience methods in +Additions
[db executeUpdate:@"create table t1 (a integer)"];
[db executeUpdate:@"insert into t1 values (?)", [NSNumber numberWithInt:5]];
int a = [db intForQuery:@"select a from t1 where a = ?", [NSNumber numberWithInt:5]];
if (a != 5) {
NSLog(@"intForQuery didn't work (a != 5)");
}
// test the busy rety timeout schtuff.
[db setBusyRetryTimeout:50000];
FMDatabase *newDb = [FMDatabase databaseWithPath:@"/tmp/tmp.db"];
[newDb open];
rs = [newDb executeQuery:@"select rowid,* from test where a = ?", @"hi'"];
[rs next]; // just grab one... which will keep the db locked.
NSLog(@"Testing the busy timeout");
BOOL success = [db executeUpdate:@"insert into t1 values (5)"];
if (success) {
NSLog(@"Whoa- the database didn't stay locked!");
return 7;
}
else {
NSLog(@"Hurray, our timeout worked");
}
[rs close];
[newDb close];
success = [db executeUpdate:@"insert into t1 values (5)"];
if (!success) {
NSLog(@"Whoa- the database shouldn't be locked!");
return 8;
}
else {
NSLog(@"Hurray, we can insert again!");
}
// test some nullness.
[db executeUpdate:@"create table t2 (a integer, b integer)"];
if (![db executeUpdate:@"insert into t2 values (?, ?)", nil, [NSNumber numberWithInt:5]]) {
NSLog(@"UH OH, can't insert a nil value for some reason...");
}
rs = [db executeQuery:@"select * from t2"];
while ([rs next]) {
NSString *a = [rs stringForColumnIndex:0];
NSString *b = [rs stringForColumnIndex:1];
if (a != nil) {
NSLog(@"%s:%d", __FUNCTION__, __LINE__);
NSLog(@"OH OH, PROBLEMO!");
return 10;
}
else {
NSLog(@"YAY, NULL VALUES");
}
if (![b isEqualToString:@"5"]) {
NSLog(@"%s:%d", __FUNCTION__, __LINE__);
NSLog(@"OH OH, PROBLEMO!");
return 10;
}
}
// test some inner loop funkness.
[db executeUpdate:@"create table t3 (a somevalue)"];
// do it again, just because
[db beginTransaction];
i = 0;
while (i++ < 20) {
[db executeUpdate:@"insert into t3 (a) values (?)" , [NSNumber numberWithInt:i]];
}
[db commit];
rs = [db executeQuery:@"select * from t3"];
while ([rs next]) {
int foo = [rs intForColumnIndex:0];
int newVal = foo + 100;
[db executeUpdate:@"update t3 set a = ? where a = ?" , [NSNumber numberWithInt:newVal], [NSNumber numberWithInt:foo]];
FMResultSet *rs2 = [db executeQuery:@"select a from t3 where a = ?", [NSNumber numberWithInt:newVal]];
[rs2 next];
if ([rs2 intForColumnIndex:0] != newVal) {
NSLog(@"Oh crap, our update didn't work out!");
return 9;
}
[rs2 close];
}
// NSNull tests
[db executeUpdate:@"create table nulltest (a text, b text)"];
[db executeUpdate:@"insert into nulltest (a, b) values (?, ?)" , [NSNull null], @"a"];
[db executeUpdate:@"insert into nulltest (a, b) values (?, ?)" , nil, @"b"];
rs = [db executeQuery:@"select * from nulltest"];
while ([rs next]) {
NSString *a = [rs stringForColumnIndex:0];
NSString *b = [rs stringForColumnIndex:1];
if (!b) {
NSLog(@"Oh crap, the nil / null inserts didn't work!");
return 10;
}
if (a) {
NSLog(@"Oh crap, the nil / null inserts didn't work (son of error message)!");
return 11;
}
else {
NSLog(@"HURRAH FOR NSNULL (and nil)!");
}
}
// null dates
NSDate *date = [NSDate date];
[db executeUpdate:@"create table datetest (a double, b double, c double)"];
[db executeUpdate:@"insert into datetest (a, b, c) values (?, ?, 0)" , [NSNull null], date];
rs = [db executeQuery:@"select * from datetest"];
while ([rs next]) {
NSDate *a = [rs dateForColumnIndex:0];
NSDate *b = [rs dateForColumnIndex:1];
NSDate *c = [rs dateForColumnIndex:2];
if (a) {
NSLog(@"Oh crap, the null date insert didn't work!");
return 12;
}
if (!c) {
NSLog(@"Oh crap, the 0 date insert didn't work!");
return 12;
}
NSTimeInterval dti = fabs([b timeIntervalSinceDate:date]);
if (floor(dti) > 0.0) {
NSLog(@"Date matches didn't really happen... time difference of %f", dti);
return 13;
}
dti = fabs([c timeIntervalSinceDate:[NSDate dateWithTimeIntervalSince1970:0]]);
if (floor(dti) > 0.0) {
NSLog(@"Date matches didn't really happen... time difference of %f", dti);
return 13;
}
}
NSDate *foo = [db dateForQuery:@"select b from datetest where c = 0"];
assert(foo);
NSTimeInterval dti = fabs([foo timeIntervalSinceDate:date]);
if (floor(dti) > 0.0) {
NSLog(@"Date matches didn't really happen... time difference of %f", dti);
return 14;
}
[db executeUpdate:@"create table nulltest2 (s text, d data, i integer, f double, b integer)"];
[db executeUpdate:@"insert into nulltest2 (s, d, i, f, b) values (?, ?, ?, ?, ?)" , @"Hi", safariCompass, [NSNumber numberWithInt:12], [NSNumber numberWithFloat:4.4], [NSNumber numberWithBool:YES]];
[db executeUpdate:@"insert into nulltest2 (s, d, i, f, b) values (?, ?, ?, ?, ?)" , nil, nil, nil, nil, [NSNull null]];
rs = [db executeQuery:@"select * from nulltest2"];
while ([rs next]) {
int i = [rs intForColumnIndex:2];
if (i == 12) {
// it's the first row we inserted.
FMDBQuickCheck(![rs columnIndexIsNull:0]);
FMDBQuickCheck(![rs columnIndexIsNull:1]);
FMDBQuickCheck(![rs columnIndexIsNull:2]);
FMDBQuickCheck(![rs columnIndexIsNull:3]);
FMDBQuickCheck(![rs columnIndexIsNull:4]);
FMDBQuickCheck( [rs columnIndexIsNull:5]);
FMDBQuickCheck([[rs dataForColumn:@"d"] length] == [safariCompass length]);
FMDBQuickCheck(![rs dataForColumn:@"notthere"]);
FMDBQuickCheck(![rs stringForColumnIndex:-2]);
FMDBQuickCheck([rs boolForColumnIndex:4]);
FMDBQuickCheck([rs boolForColumn:@"b"]);
FMDBQuickCheck(fabs(4.4 - [rs doubleForColumn:@"f"]) < 0.0000001);
FMDBQuickCheck(12 == [rs intForColumn:@"i"]);
FMDBQuickCheck(12 == [rs intForColumnIndex:2]);
FMDBQuickCheck(0 == [rs intForColumnIndex:12]); // there is no 12
FMDBQuickCheck(0 == [rs intForColumn:@"notthere"]);
FMDBQuickCheck(12 == [rs longForColumn:@"i"]);
FMDBQuickCheck(12 == [rs longLongIntForColumn:@"i"]);
}
else {
// let's test various null things.
FMDBQuickCheck([rs columnIndexIsNull:0]);
FMDBQuickCheck([rs columnIndexIsNull:1]);
FMDBQuickCheck([rs columnIndexIsNull:2]);
FMDBQuickCheck([rs columnIndexIsNull:3]);
FMDBQuickCheck([rs columnIndexIsNull:4]);
FMDBQuickCheck([rs columnIndexIsNull:5]);
FMDBQuickCheck(![rs dataForColumn:@"d"]);
}
}
{
[db executeUpdate:@"create table testOneHundredTwelvePointTwo (a text, b integer)"];
[db executeUpdate:@"insert into testOneHundredTwelvePointTwo values (?, ?)" withArgumentsInArray:[NSArray arrayWithObjects:@"one", [NSNumber numberWithInteger:2], nil]];
[db executeUpdate:@"insert into testOneHundredTwelvePointTwo values (?, ?)" withArgumentsInArray:[NSArray arrayWithObjects:@"one", [NSNumber numberWithInteger:3], nil]];
rs = [db executeQuery:@"select * from testOneHundredTwelvePointTwo where b > ?" withArgumentsInArray:[NSArray arrayWithObject:[NSNumber numberWithInteger:1]]];
FMDBQuickCheck([rs next]);
FMDBQuickCheck([rs hasAnotherRow]);
FMDBQuickCheck(![db hadError]);
FMDBQuickCheck([[rs stringForColumnIndex:0] isEqualToString:@"one"]);
FMDBQuickCheck([rs intForColumnIndex:1] == 2);
FMDBQuickCheck([rs next]);
FMDBQuickCheck([rs intForColumnIndex:1] == 3);
FMDBQuickCheck(![rs next]);
FMDBQuickCheck(![rs hasAnotherRow]);
}
{
FMDBQuickCheck([db executeUpdate:@"create table t4 (a text, b text)"]);
FMDBQuickCheck(([db executeUpdate:@"insert into t4 (a, b) values (?, ?)", @"one", @"two"]));
rs = [db executeQuery:@"select t4.a as 't4.a', t4.b from t4;"];
FMDBQuickCheck((rs != nil));
[rs next];
FMDBQuickCheck([[rs stringForColumn:@"t4.a"] isEqualToString:@"one"]);
FMDBQuickCheck([[rs stringForColumn:@"b"] isEqualToString:@"two"]);
FMDBQuickCheck(strcmp((const char*)[rs UTF8StringForColumnName:@"b"], "two") == 0);
[rs close];
// let's try these again, with the withArgumentsInArray: variation
FMDBQuickCheck([db executeUpdate:@"drop table t4;" withArgumentsInArray:[NSArray array]]);
FMDBQuickCheck([db executeUpdate:@"create table t4 (a text, b text)" withArgumentsInArray:[NSArray array]]);
FMDBQuickCheck(([db executeUpdate:@"insert into t4 (a, b) values (?, ?)" withArgumentsInArray:[NSArray arrayWithObjects:@"one", @"two", nil]]));
rs = [db executeQuery:@"select t4.a as 't4.a', t4.b from t4;" withArgumentsInArray:[NSArray array]];
FMDBQuickCheck((rs != nil));
[rs next];
FMDBQuickCheck([[rs stringForColumn:@"t4.a"] isEqualToString:@"one"]);
FMDBQuickCheck([[rs stringForColumn:@"b"] isEqualToString:@"two"]);
FMDBQuickCheck(strcmp((const char*)[rs UTF8StringForColumnName:@"b"], "two") == 0);
[rs close];
}
{
FMDBQuickCheck([db tableExists:@"t4"]);
FMDBQuickCheck(![db tableExists:@"thisdoesntexist"]);
rs = [db getSchema];
while ([rs next]) {
FMDBQuickCheck([[rs stringForColumn:@"type"] isEqualToString:@"table"]);
}
}
// just for fun.
rs = [db executeQuery:@"PRAGMA database_list"];
while ([rs next]) {
NSString *file = [rs stringForColumn:@"file"];
NSLog(@"database_list: %@", file);
}
// print out some stats if we are using cached statements.
if ([db shouldCacheStatements]) {
NSEnumerator *e = [[db cachedStatements] objectEnumerator];;
FMStatement *statement;
while ((statement = [e nextObject])) {
NSLog(@"%@", statement);
}
}
NSLog(@"That was version %@ of sqlite", [FMDatabase sqliteLibVersion]);
[db close];
[pool release];
return 0;
}