problem in reading image from data base in iphone - iphone

Question

hi i am able to store the image into database by using the following code.......
-(void)insertimages: (NSData *)image
{
if(sqlite3_open([databasePath UTF8String], &database) == SQLITE_OK)
{
NSUInteger len = [image length];
NSLog(#"data size is %d", len);
sqlStatement="insert into messages values(10,?)";
if(sqlite3_prepare_v2(database, sqlStatement, -1, &compiledStatement, NULL) == SQLITE_OK)
{
//sqlite3_bind_int(compiledStatement, 1, -1);
//sqlite3_bind_blob(updateStmt, 3, [imgData bytes], [imgData length], NULL);
sqlite3_bind_blob(compiledStatement, 1, [image bytes], [image length], SQLITE_TRANSIENT);
//sqlite3_bind_text(compiledStatement, 1, [SMSBody UTF8String],-1,SQLITE_STATIC);
if(sqlite3_step(compiledStatement) == SQLITE_DONE)
{
sqlite3_finalize(compiledStatement);
}
}
sqlite3_close(database);
}
}
but now my problem is i am not able to retrieve the image from the database and to display it in uiimageview...
con any one please help me how to do that.

Answer 1

Use following method to read the image data from database and stored the images in array or in dictionary
-(void) readImageDataFromDatabase {
// Setup the database object
sqlite3 *database;
// Init the img Array
imageArray = [[NSMutableArray alloc] init];
// Open the database from the users filessytem
if(sqlite3_open([databasePath UTF8String], &database) == SQLITE_OK) {
// Setup the SQL Statement and compile it for faster access
const char *sqlStatement = "select * from messages";
sqlite3_stmt *compiledStatement;
if(sqlite3_prepare_v2(database, sqlStatement, -1, &compiledStatement, NULL) == SQLITE_OK) {
// Loop through the results and add them to the feeds array
while(sqlite3_step(compiledStatement) == SQLITE_ROW) {
// Read the data from the result row
NSURL *url = [NSURL URLWithString:[NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 1)]];
];
NSData *imgData = [NSData dataWithContentsOfURL: url];
// Create a new image object with the data from the database
iconImage.image=[UIImage imageWithData:imgData];
// Add the img object to the img Array
[imageArray addObject:iconImage];
}
}
// Release the compiled statement from memory
sqlite3_finalize(compiledStatement);
}
sqlite3_close(database);
}

Answer 2

I was trying to do this a year ago, I wrote code to save the images into a sqlite3 db using osx sdk (of which i was able to write and read, i could even store the images in the db with ruby and read them on with macosx sdk). But when i moved this exact code over to an iOS app it would pull out bad data. If you do work this out i'd like to know the answer.