How to overwritting a file?
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sorry... I said nothing.
I had a question, but I understood my fault when I sent my message.
It's my array that isn't emptied and which contains twice content. Sorry.
How to remove this thread?
Hi,
I want to save my data into a text file, and I wrote this method:
@
bool JSONStorage::storeJSONFile(){
if( !jsonFile.open(QIODevice::WriteOnly | QIODevice::Text | QIODevice::Truncate) ){
return false;
}
QJsonDocument jsonDocument( jsonArray );
jsonFile.write( jsonDocument.toJson() );
jsonFile.close();
return true;
}@
jsonFile is QFile.That works, but if I call this twice (later), my second content is appending at the end instead of overwriting my first content.
Why?This code don't work too:
@
bool JSONStorage::storeJSONFile(){
jsonFile.remove();
if( !jsonFile.open(QIODevice::WriteOnly | QIODevice::Text | QIODevice::Truncate) ){
return false;
}
QJsonDocument jsonDocument( jsonArray );
jsonFile.seek(0);
jsonFile.write( jsonDocument.toJson() );
jsonFile.resize(jsonFile.pos());
jsonFile.flush();
jsonFile.close();
return true;
}
@