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jsonHandler.js
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60 lines (48 loc) · 1.43 KB
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//cria arquivo se não existir e escreve JSON
function writeJSONFile(object,fileName)
{
var file = Ti.Filesystem.getFile(Ti.Filesystem.applicationDataDirectory,fileName);
var fileData = JSON.stringify(object);
file.write(fileData,false);
}
//Pega JSON do arquivo
//Retorna falso caso não seja um arquivo JSON válido
function readJSONFile(fileName)
{
var file = Ti.Filesystem.getFile(Ti.Filesystem.applicationDataDirectory,fileName);
if (file.exists())
{
var fileContent = file.read().toString();
var object;
//Checa se é um JSON válido
try
{
object = JSON.parse(fileContent);
}
catch (exception)
{
console.log("Invalid JSON content in file: " + fileName);
return false;
}
return object;
}
return false;
}
function deleteFile(fileName)
{
var file = Ti.Filesystem.getFile(Ti.Filesystem.applicationDataDirectory,fileName);
if (file.exists())
{
return file.deleteFile();
}
return false;
}
function checkIfFileExists(fileName)
{
var file = Ti.Filesystem.getFile(Ti.Filesystem.applicationDataDirectory,fileName);
return file.exists();
}
exports.writeJSONFile = writeJSONFile;
exports.readJSONFile = readJSONFile;
exports.deleteFile = deleteFile;
exports.checkIfFileExists = checkIfFileExists;