append to file in tizen - filesystems

Question

I create test.txt with this code:
=====================
function e(arg){
if (typeof arg === "function") {
return arg;
} else {
return function (er) { console.log('[' + arg + '] ' + er); };
}
}
function rs(dir) {
var fh = dir.createFile(" test.text");
{
fh.openStream('rw', function(fs){
fs.write("Hello ");
fs.close();
}, e('openStream'), 'UTF-8');
}
}
tizen.filesystem.resolve('downloads', rs, e('resolve'), 'rw');
=====================
And try to append some text by this code :
=====================
function append(dir) {
var fh = dir.resolve(" test.text");
{
fh.openStream('a', function(fs){
fs.write(" Tizen .. ");
fs.close();
}, e('openStream'), 'UTF-8');
}
}
tizen.filesystem.resolve('downloads', append, e('resolve'), 'a');
====================
but file contain only last text ('Tizen ..').
how to solve this problem?
thanks

Answer 1

Try the code below. It worked in my case.
var newDir, newFile;
tizen.filesystem.resolve("documents", function(dir) {
newDir = dir.createDirectory("newDir");
newFile = newDir.createFile("newFilePath.txt");
newFile.openStream(
"w",
function(fs) {
fs.write("Hello");
fs.close();
},
function(e) {
console.log("Error " + e.message);
}, "UTF-8");
});
var text2;
tizen.filesystem.resolve("documents", function(dir) {
file = dir.resolve("newDir/newFilePath.txt");
file.openStream(
"a",
function(fs) {
fs.write('Tizen .. ');
},
function(e) {
console.log("Error " + e.message);
}, "UTF-8");
file.openStream(
"r",
function(fs) {
text2 = fs.read(file.fileSize);
fs.close();
console.log(text2);
},
function(e) {
console.log("Error " + e.message);
}, "UTF-8");
});
Note: Please check in your project's config.xml file whether you've added the following privileges or not.
<tizen:privilege name="http://tizen.org/privilege/filesystem.read"/>
<tizen:privilege name="http://tizen.org/privilege/filesystem.write"/>