In qml,
templist:
[{"product_code":"111111111","product_name":"AAAA"},
{"product_code":"222222222","product_name":"BBBB"},
{"product_code":"33333333","product_name":"CCCC"}]
with the help of below code in the qml side, the above templist sent to c++ side as a Qstring ,
function listToString() {
var data = []
for (var i = 0; i < templist.count; ++i) {
data.push(templist.get(i))
}
var keysList = JSON.stringify(data)
console.log(keysList)
**Option A:** backend.request_add(keysList)
**Option B:** backend.request_add(data)
}
in the C++ side,
Option A: keysList as multidata
Option B: data as multidata
I got the above input converted into a
QByteArray br = multidata.toUtf8();
Option A
br =
[{\"product_code\":\"111111111\",\"product_name\":\"AAAA\"},
{\"product_code\":\"222222222\",\"product_name\":\"BBBB\"},
{\"product_code\":\"33333333\",\"product_name\":\"CCCC\"}]
Option B
br = "QObject(0x560034863a60),QObject(0x5600348628b0),QObject(0x7f76000074d0)"
Question:
In Option A, I have converted the key pair to json format before sending it to c++ side as a qstring.
is there a way to get the key-pair from Option B directly from this output
br = "QObject(0x560034863a60),QObject(0x5600348628b0),QObject(0x7f76000074d0)"
if I convert in the qml side itself I get the desired answer listed in Option A
br = [{"product_code":"111111111","product_name":"AAAA"},
{"product_code":"222222222","product_name":"BBBB"},
{"product_code":"33333333","product_name":"CCCC"}]
I'm trying to achieve the same desired output using Option B. Please point me in the right direction
Option B will never work. You convert an object instance into a stringified version. This is basically the type (QObject) and its adresse (0x560034863a60).
You have to stringify the JSON data with JSON.stringify(data) to be able to transfer the data as JSON string to the C++ side.
What would be the advantage of Option B anyway?
Related
I'm currently trying to connect a Lua Script with a GS WebApp. The connection is working but due to my lack of knowledge in GScripting I'm not sure why it isn't saving my data correctly.
In the Lua side I'm just passing in a hard-code a random name and simple numerical userid.
local HttpService = game:GetService("HttpService")
local scriptID = scriptlink
local WebApp
local function updateSpreadSheet ()
local playerData = (scriptID .. "?userid=123&name:Jhon Smith")
WebApp = HttpService:GetAsync(playerData)
end
do
updateSpreadSheet()
end
On the Google Script side i'm only saving the data on the last row and then add the value of the userid and the name.
function doGet(e) {
console.log(e)
// console.log(f)
callName(e.parameter.userid,e.parameter.name);
}
function callName(userid,name) {
// Get the last Row and add the name provided
var sheet = SpreadsheetApp.getActiveSheet();
sheet.getRange(sheet.getLastRow() + 1,1).setValues([userid],[name]);
}
However, the only data the script is saving is the name, bypassing the the userid for reasons I have yet to discover.
setValues() requires a 2D array and range dimensions should correspond to that array. The script is only getting 1 x 1 range and setValues argument is not a 2D array. Fix the syntax or use appendRow
sheet.getRange(sheet.getLastRow() + 1,1,1,2).setValues([[userid,name]]);
//or
sheet.appendRow([userid,name])
References:
appendRow
I have setup a continuous export from Application Insights into Blog. With a data stream I'm able to get out the JSON files into SQL DB. So far so good.
Also with help from Phani Rahul Sivalenka I'm able to query the individual properties of custom dimensions as described here: Application Insights and Azure Stream Analytics Query a custom JSON property
My custom dimensions looks like this when exporting manually into CSV file:
"{""OperatingSystemVersion"":""10.0.18362.418"",""OperatingSystem"":""WINDOWS"",""RuntimePlatform"":""UWP"",""Manufacturer"":""LENOVO"",""ScreenHeight"":""696"",""IsSimulator"":""False"",""ScreenWidth"":""1366"",""Language"":""it"",""IsTablet"":""False"",""Model"":""LENOVO_BI_IDEAPAD4Q_BU_idea_FM_""}"
Additionally to the single columns I like to have the whole custom dimensions as a string in a SQL Table column (varchar(max)).
In the "Test results" of my Data Stream Output Query I see the column as formated above - but when really exporting / wrinting into SQL DB all my tests ended having only the value "Array" or "Record" as value in my SQL Table column.
What do I have to do in the Data Stream Query to get the whole custom dimensions value as a string and I'm able to write this into SQL Table as a whole string?
What do I have to do in the Data Stream Query to get the whole custom
dimensions value as a string and I'm able to write this into SQL Table
as a whole string?
You could use UDF to merge all key-values of single raw into one single json format string.
UDF:
function main(raw) {
let str = "{";
for(let key in raw) {
str = str + "\""+ key+"\":\""+raw[key]+"\",";
}
str += "}";
return str;
}
SQL:
SELECT udf.jsonstring(INPUT1) FROM INPUT1
Output:
The answer brought me on the right track.
The above script don't include the values as expected. So I modified the script to get it work as needed:
function main(dimensions) {
let str = "{";
for (let i in dimensions)
{
let dim = dimensions[i];
for (let key in dim)
{
str = str + "\"" + key+ "\":\""+dim[key]+"\",";
}
}
str += "}";
return str;
}
Selecting:
WITH pageViews as (
SELECT
V.ArrayValue.name as pageName
, *
, customDimensions = UDF.flattenCustomDimensions(A.context.custom.dimensions)
, customDimensionsString = UDF.createCustomDimesionsString(A.context.custom.dimensions)
FROM [AIInput] as A
CROSS APPLY GetElements(A.[view]) as V
)
With this I'm getting the custom dimensions string as follow in my SQL table:
{"Language":"tr","IsSimulator":"False","ScreenWidth":"1366","Manufacturer":"Hewlett-Packard","OperatingSystem":"WINDOWS","IsTablet":"False","Model":"K8K51ES#AB8","OperatingSystemVersion":"10.0.17763.805","ScreenHeight":"696","RuntimePlatform":"UWP",}
How can I convert an image to array of bytes using ImageSharp library?
Can ImageSharp library also suggest/provide RotateMode and FlipMode based on EXIF Orientation?
If you are looking to convert the raw pixels into a byte[] you do the following.
var bytes = image.SavePixelData()
If you are looking to convert the encoded stream as a byte[] (which I suspect is what you are looking for). You do this.
using (var ms = new MemoryStream())
{
image.Save(ms, imageFormat);
return ms.ToArray();
}
For those who look after 2020:
SixLabors seems to like change in naming and adding abstraction layers, so...
Now to get a raw byte data you do the following steps.
Get MemoryGroup of an image using GetPixelMemoryGroup() method.
Converting it into array (because GetPixelMemoryGroup() returns a interface) and taking first element (if somebody tells me why they did that, i'll appreciate).
From System.Memory<TPixel> get a Span and then do stuff in old way.
(i prefer solution from #Majid comment)
So the code looks something line this:
var _IMemoryGroup = image.GetPixelMemoryGroup();
var _MemoryGroup = _IMemoryGroup.ToArray()[0];
var PixelData = MemoryMarshal.AsBytes(_MemoryGroup.Span).ToArray();
ofc you don't have to split this into variables and you can do this in one line of code. I did it just for clarification purposes. This solution only viable as for 06 Sep 2020
I'm trying to encode a QString into a JSON string, so that I can inject it safely via QWebFrame::evaluateJavaScript(QString("o.text = %1;").arg(???)).
For example, in php using the function json_encode
echo json_encode('HELLO "me"');
The output would be
"HELLO \"me\""
This is the internal representation of the string, within the Json object.
In the same way, using Qt, how can I retrieve the internal representation of a string, as it would be encoded as a value, within a Json formatted string?
It's really not that difficult. Start by building up the structure with QJsonObjects
QJsonObject obj;
obj.insert("tag1", QString("Some text"));
Then use QDocument to get a string in Json format
QJsonDocument doc(obj);
QByteArray data = doc.toJson(QJsonDocument::Compact);
QString jsonString(data);
This will produce a string, in the form of: -
{ "tag1" : "Some Text" }
Separate items into a list, splitting on ':'
QStringList items = jsonString.split(':', QString::SkipEmptyParts);
There should be 2 items in the list, the second being the value section of the Json string
"Some Test"}
Remove the final '}'
QString value = items[1].remove('}');
Of-course, you will need to do error checking and be aware that if you have a ':' or '}' in the original string, then you'll need to check for them first.
Original answer doesn't handle : and } inside of string correctly. A similar approach using array which requires only stripping []:
QString encodeJsonStringLiteral(const QString &value)
{
return QString(
QJsonDocument(
QJsonArray() << value
).toJson(QJsonDocument::Compact)
).mid(1).chopped(1);
}
ab"c'd becomes "ab\"c'd"
Or, if you don't need double quotes around the string, replace with .mid(2).chopped(2)
I test some basic AT Command in Hyperterminal. The GSM modem response as per my command too. But problem is that it shows me the unreadable text. I use the following code :
AT
OK
AT+CUSD=1,"*247#",15
OK
+CUSD: 1,"0062004B006100730068000A00310020004D0032004D0020005400720061006E007300
6600650072000A0032002000440069007300620075007200730065000A00330020004D0079002000
62004B006100730068000A0034002000480065006C0070006C0069006E0065000A",72
AT+CUSD=1,"1",15
OK
AT+CUSD=1,"*247#",15 command should display
Menu 1
Menu 2
Menu 3
Something like that. But it displayed the hexadecimal code which it unreadable. How can I get plain text ? Can anyone help Me ?
Judging by information provided. Where when you send the +CUSD request with DCS (Data Coding Scheme) of 15. And the response from the Bkash service with DCS of 72. It looks like your modem does not support the encoding specified in the DCS from Bkash.
I found is fairly similar question and solution to this question. Try and ensure that +CSCS is set to something like IRA or GSM and see what happens then with your +CUSD responses.
Use the following functions to decode "UCS2" response data:
public static String HexStr2UnicodeStr(String strHex)
{
byte[] ba = Hex2ByteArray(strHex);
return HexBytes2UnicodeStr(ba);
}
public static String HexBytes2UnicodeStr(byte[] ba)
{
var strMessage = Encoding.BigEndianUnicode.GetString(ba, 0, ba.Length);
return strMessage;
}
for example:
String str2 = SmsEngine.HexStr2UnicodeStr("0062004B006100730068000A00310020004D0032004D0020005400720061006E0073006600650072000A0032002000440069007300620075007200730065000A00330020004D007900200062004B006100730068000A0034002000480065006C0070006C0069006E0065000A");
// str2 = "bKash\n1 M2M Transfer\n2 Disburse\n3 My bKash\n4 Helpline\n"
Please also check UnicodeStr2HexStr()
Hi this code is something called PDU (Protocol Data Unit). To decode it is not straight forward. you need to understand the structure first.