Saving and Retrieving Images from database - objective-c

Question

I have created a file of images in DBBrowser and now i want to save images in that and then retrieve it.
Here is my code-
-(void)saveListImages {
if(sqlite3_open([[[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:image] UTF8String], &database) == SQLITE_OK) {
NSString *query = [NSString stringWithFormat:#"SELECT * FROM image where id=%i"];
//NSLog(#";query = \n%#";, query);
sqlite3_stmt *statement;
if (sqlite3_prepare_v2(database, [query UTF8String], -1, &statement, nil) == SQLITE_OK) {
while (sqlite3_step(statement) == SQLITE_ROW) {
if (sqlite3_column_blob(statement, 0) != NULL) {
//NSLog(#";read a non NULL image");
NSData *data = [[NSData alloc] initWithBytes:sqlite3_column_blob(statement, 0) length:sqlite3_column_bytes(statement, 0)];
imageView.image = [UIImage imageWithData:data];
}
else {
NSLog(#";read a NULL image");
}
}
sqlite3_finalize(statement);
}
}
sqlite3_close(database);
}

Answer 1

you can't store image in database,
first you convert image into NSString, and in your database image column type set to blob
- (NSString *)encodeToBase64String:(UIImage *)image {
return [UIImagePNGRepresentation(image) base64EncodedStringWithOptions:NSDataBase64EncodingEndLineWithCarriageReturn];
}
- (UIImage *)decodeBase64ToImage:(NSString *)strEncodeData {
NSData *data = [[NSData alloc]initWithBase64EncodedString:strEncodeData options:NSDataBase64DecodingIgnoreUnknownCharacters];
return [UIImage imageWithData:data];
}
Convert image into Base64String
NSString *imageString = [self encodeToBase64String:image];
// Store base64String into Database
when required you show image in imageView,
simply get image string from databse than convert into image
imageView.image=[self decodeBase64ToImage:imageString];