Application crashing due to unicode characters in string
I am making an application in which I have to store data from remote db into local sqlite3 db.
Problem is - when any string to be inserted contains unicode character such as: \U00a0 or \U2022 or \U2019, it crashes.
The part of code which crashes is this-
NSString *insertQuery = @"insert into XYZ(field1,field2) values (@"1",[recordDict objectF开发者_开发百科orKey:@"field2"]);
// recordDict contains value: @"\U00a0 \U00a0 \U00a0 \U00a0The Cadfsdfsdfptain\U2019s" for key: @"field2"
sqlite3_stmt *insertStmnt;
const char *sql = [insertQuery cStringUsingEncoding:1];
printf("insertQuery - %s",sql); // it is showing insertQuery - (null) and crashing at next line
if(sqlite3_prepare_v2(database, sql, -1, &insertStmnt, NULL) != SQLITE_OK){
NSLog(@"Error while creating insert statement. '%s'",sqlite3_errmsg(database));
}
Can anyone suggest me how to resolve this problem?
Thanks,
Miraaj
cStringUsingEncoding:
returns NULL
when the string cannot be losslessly converted to the specified encoding, hence your crash. You can use canBeConvertedToEncoding:
to ensure the conversion is possible.
Furthermore, the value 1
corresponds to NSASCIIStringEncoding
which will certainly fail for a string with Unicode characters. NSUTF8StringEncoding
might be more appropriate.
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