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Code Issues Releases Wiki Activity

Added logs in db.js

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Added more logging information in /json/nodejs/todo-app/db.js
This commit is contained in:
Jovan Popovic
2017-03-29 23:24:33 +02:00
parent f3922bc621
commit ec65352509
1 changed files with 23 additions and 14 deletions
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samples/features/json/todo-app/nodejs-express4-rest-api/db.js
+23 -14
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@@ -19,12 +19,13 @@ function createRequest(query, connection) {
var req =
new Request(query,
function (err, rowCount) {
if (err) {
throw err;
}
connection && connection.close();
if (err) {
console.trace(err);
throw err;
}
connection && connection.close();
console.log('Connection closed');
});
return req;
}
@@ -32,15 +33,15 @@ function stream (query, connection, output, defaultContent) {
var request = query;
if (typeof query == "string") {
request = this.createRequest(query, connection);
request = createRequest(query, connection);
}
pipe(request, output, defaultContent);
}
function pipe (request, output, defaultContent) {
var empty = true;
request.on('row', function (columns) {
empty = false;
if(empty) {
console.log('Response fetched from SQL Database!');
empty = false;
}
output.write(columns[0].value);
});
@@ -50,19 +51,28 @@ function pipe (request, output, defaultContent) {
request.on('doneProc', function (rowCount, more, rows) {
_OnDone(empty, defaultContent, output);
});
});
executeRequest (request, connection);
}
function _OnDone(empty, defaultContent, output) {
if(empty) {
output.write(defaultContent);
console.log('No results from database - default content is returned.');
}
try { output.end(); } catch (err) { /* Ignore stream close error. */ }
try {
console.log('Closing Http Response output.');
output.end();
} catch (err) {
console.error(err);
}
}
function executeRequest (request, connection) {
connection.on('connect', function (err) {
if (err) {
console.trace(err);
throw err;
}
connection.execSql(request);
@@ -72,5 +82,4 @@ function executeRequest (request, connection) {
module.exports.createConnection = createConnection;
module.exports.createRequest = createRequest;
module.exports.executeRequest = executeRequest;
module.exports.stream = stream;
module.exports.pipe = pipe;
module.exports.stream = stream;