handle db open

@@ -4991,6 +4991,20 @@ CGFloat DistanceBetweenTwoPoints(CGPoint point1,CGPoint point2)
 //    [self initDBIfNeeded];
 //    [self restore];
     
+    
+    BOOL dbOpened = NO;
+    @try {
+        @synchronized (_DatabaseLock) {
+            dbOpened = [_db open];
+        }
+    }
+    @catch (NSException *exception) {
+       NSLog(@"Open db error: %@", exception.reason);
+    }
+    @finally {
+//           NSLog(@"Finally condition");
+    }
+    
     BOOL tableExist = NO;
     @try {
         @synchronized (_DatabaseLock) {
@@ -5007,7 +5021,7 @@ CGFloat DistanceBetweenTwoPoints(CGPoint point1,CGPoint point2)
     time_t timestamp = (time_t) [[NSDate date] timeIntervalSince1970];
 //    NSString *accessToken = [NSString alloc];
     NSString *accessToken = @"";
-    if (([_db open] == YES) && (tableExist == YES)) {
+    if ((dbOpened == YES) && (tableExist == YES)) {
     //   FMResultSet *accessTokenSet = [_db executeQuery:@"SELECT access_token FROM requestVariables WHERE id = 1;"];
     //   while ([accessTokenSet next]) {
     //     accessToken = [[accessTokenSet resultDictionary][@"access_token"] stringValue];
@@ -5165,6 +5179,19 @@ CGFloat DistanceBetweenTwoPoints(CGPoint point1,CGPoint point2)
 //    [self initDBIfNeeded];
 //    [self restore];
     
+    BOOL dbOpened = NO;
+    @try {
+        @synchronized (_DatabaseLock) {
+            dbOpened = [_db open];
+        }
+    }
+    @catch (NSException *exception) {
+       NSLog(@"Open db error: %@", exception.reason);
+    }
+    @finally {
+//           NSLog(@"Finally condition");
+    }
+    
     BOOL tableExist = NO;
     @try {
         @synchronized (_DatabaseLock) {
@@ -5181,7 +5208,7 @@ CGFloat DistanceBetweenTwoPoints(CGPoint point1,CGPoint point2)
     time_t timestamp = (time_t) [[NSDate date] timeIntervalSince1970];
 //    NSString *accessToken = [NSString alloc];
     NSString *accessToken = @"";
-    if (([_db open] == YES) && (tableExist == YES)) {
+    if ((dbOpened == YES) && (tableExist == YES)) {
         @try {
             @synchronized (_DatabaseLock) {
             FMResultSet *accessTokenSet = [_db executeQuery:@"SELECT access_token FROM requestVariables WHERE id = 1;"];