I have successfully built a native image with Quarkus/Graal and I can run it in the terminal (no container yet). However, it crashes with "Segmentation fault (core dumped)" message. How can I get more information about the error? Are there flags to pass to the native executable or while building the image?
I am using GraalVM Version 20.2.0 (Java Version 11.0.8)
Any help is much appreciated.
Thanks.
I have a file txt file taht contains all the dates in a year in the mm/dd/yy format. 01/01/20 01/02/20 01/03/20 01/04/20 01/05/20 01/06/20
And I have a today's date from Python code:
current_time = datetime.datetime.now()
date = current_time.strftime("%m/%d/%Y")
When I try to find the list element == date i don't get a match. The code is:
for i in range(0,366):
if(date==calendarData[i]):
break
else:
print(i,end=" ")
print("date", date, end=" ")
print(calendarData[i], end="")
i=i+1
From the console
269 date 09/29/2020 0 9 / 2 6 / 2 0
270 date 09/29/2020 0 9 / 2 7 / 2 0
271 date 09/29/2020 0 9 / 2 8 / 2 0
272 date 09/29/2020 0 9 / 2 9 / 2 0
273 date 09/29/2020 0 9 / 3 0 / 2 0
274 date 09/29/2020 1 0 / 0 1 / 2 0
I couldn't find how to create boolean list with same length of the input. I kept getting error at the line: checks[j] = true when I try to convert it to Python. I guess slicing a boolean list is not allowed in Python.
int result = 0;
Boolean lightsOn = true;
Boolean[] checks = new Boolean[input.Length];
for (int i = 0; i < input.Length; i++)
{
int j = input[i] - 1;
checks[j] = true;
for (; 0 <= j; j--)
{
if (!checks[j]) # also this part
{
lightsOn = false;
break;
}
}
if (lightsOn)
{
result++;
}
lightsOn = true;
}
return result;
I'm having difficulties getting behind the concept of context cancel functions and at which point calling the cancel func causes a deadlock.
I have a main method that declares a context and I am passing its cancel function to two goroutines
ctx := context.Background()
ctx, cancel := context.WithCancel(ctx)
go runService(ctx, wg, cancel, apiChan)
go api.Run(cancel, wg, apiChan, aviorDb)
I use this context in a service function (infinite loop that stops once the context is cancelled). I am controlling this by calling the cancel function from another goroutine. runService is a long running operation and looks similar to this:
func runService(ctx context.Context, wg *sync.WaitGroup, cancel context.CancelFunc, apiChan chan string) {
MainLoop:
for {
// this is the long running operation
worker.ProcessJob(dataStore, client, job, resumeChan)
select {
case <-ctx.Done():
_ = glg.Info("service stop signal received")
break MainLoop
default:
}
select {
case <-resumeChan:
continue
default:
}
waitCtx, cancel := context.WithTimeout(context.Background(), time.Duration(sleepTime)*time.Minute)
globalstate.WaitCtxCancel = cancel
<-waitCtx.Done()
}
_ = dataStore.SignOutClient(client)
apiChan <- "stop"
wg.Done()
cancel()
}
api has a global variable for the context cancel function:
var appCancel context.CancelFunc
It is set in the beginning by the api.Run method like so:
func Run(cancel context.CancelFunc, wg *sync.WaitGroup, stopChan chan string, db *db.DataStore) {
...
appCancel = cancel
...
}
api has a stop function which calls the cancel function:
func requestStop(w http.ResponseWriter, r *http.Request) {
_ = glg.Info("endpoint hit: shut down service")
if globalstate.WaitCtxCancel != nil {
globalstate.WaitCtxCancel()
}
state := globalstate.Instance()
state.ShutdownPending = true
appCancel()
encoder := json.NewEncoder(w)
encoder.SetIndent("", " ")
_ = encoder.Encode("stop signal received")
}
When the requestStop function is called and thus the context is cancelled, the long running operation (worker.ProcessJob) immediately halts and the entire program deadlocks. Before its next line of code is executed, the code jumps to gopark with reason waitReasonSemAcquire.
The context cancel function is only called in these two locations. So it seems like the other goroutine (runService) can't get a lock for some reason.
My understanding up to now was that the cancel function can be passed around to different goroutines and there are no synchronization issues attached when calling it.
For example, the WaitCtxCancel function never causes a deadlock when I call it.
I could
to determine whether should run.
However, I want to understand what's happening here and why. Also, is there any solution or approach I could use using contexts? It seemed like the "correct" thing to use for use cases like mine.
I have this code that's not working:
self.lib_tree.item(song)['values'][select_values] = adj_list
self.lib_tree.item(album)['values'][select_values] += adj_list
self.lib_tree.item(artist)['values'][select_values] += adj_list
The full code is this:
def toggle_select(self, song, album, artist):
# 'values' 0=Access, 1=Size, 2=Selected Size, 3=StatTime, 4=StatSize,
# 5=Count, 6=Seconds, 7=SelSize, 8=SelCount, 9=SelSeconds
# Set slice to StatSize, Count, Seconds
total_values = slice(4, 7) # start at index, stop before index
select_values = slice(7, 10) # start at index, stop before index
tags = self.lib_tree.item(song)['tags']
if "songsel" in tags:
# We will toggle off and subtract from selected parent totals
tags.remove("songsel")
self.lib_tree.item(song, tags=(tags))
# Get StatSize, Count and Seconds
adj_list = [element * -1 for element in \
self.lib_tree.item(song)['values'][total_values]]
else:
tags.append("songsel")
self.lib_tree.item(song, tags=(tags))
# Get StatSize, Count and Seconds
adj_list = self.lib_tree.item(song)['values'][total_values] # 1 past
self.lib_tree.item(song)['values'][select_values] = adj_list
self.lib_tree.item(album)['values'][select_values] += adj_list
self.lib_tree.item(artist)['values'][select_values] += adj_list
if self.debug_toggle < 10:
self.debug_toggle += 1
print('artist,album,song:',self.lib_tree.item(artist, 'text'), \
self.lib_tree.item(album, 'text'), \
self.lib_tree.item(song, 'text'))
print('adj_list:',adj_list)
The adj_list has the correct values showing up in debug.
How do I add a list of values to the slice of a list?
We recently acquired mobile solution that contains an ios and android project. Android project runs fine. When i run the ios project i get error stating 
My environment is a windows laptop and a macbook pro running visual studio from windows.
In the videos i watched as soon as mac was paired then more options appeared besides just simulator. (ipad, tvos, etc)
One question is when i registered my device i used the UUID from the macbook and not UUID of simulator. Could not get straight answer for this.
To be clear i am just trying to run the simulator and not a remote device.
Honestly i just want to be able to test the ios application. It should not be this many steps to just run a test. Is there a more simple way to test or am i on the right track?
i'm really confused with, well it's best if I show my code first so here's what I got.
void dumpInt(int x) throws IOException {
if ( true ) {
//8388638
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
writer.writeByte(x&0xff);
writer.writeByte((x>>8)&0xff);
writer.writeByte((x >> 16) & 0xfff);
writer.writeByte((x>>24)&0xff);
outputStream.write(x & 0xff);
outputStream.write((x >> 8) & 0xff);
outputStream.write((x >> 16) & 0xff);
outputStream.write((x >> 24) & 0xff);
System.out.println((x >> 16) & 0xff);
if(x == 8388638){
String xz = "";
byte[]array = outputStream.toByteArray();
System.out.println(array[2]+" | " + (char)array[2]);
}
} else {
writer.writeInt(x);
}
}
this works fine but when I do dumpInt(8388638), I get some weird occurrences. writer.writeByte((x >> 16) & 0xfff) writes -128 to the writer Im clueless as why that is.
The same thing happens for outputStream.write((x >> 16) & 0xff); but when I run System.out.println((x >> 16) & 0xff); it outputs 128(positive)
Does anybody know why this is and how I can correct it? (Sorry i'm somewhat experienced in java but im not the best by any means so if this is a really simple fix my bad)
I have a custom segmented control with 4 segments with a button in each segment. I had to make a change to the button's contentEdgeInsets:
// eg of the second button
customSegmentedControl.secondButton?.contentEdgeInsets = UIEdgeInsets(top: 0, left: -35, bottom: 0, right: 0)
The slider originally slid to each segment using button.frame.midX. After changing the contentEdgeInsets when the slider slides to a segment it looks as if it's in the wrong position because the title is no longer in the center of the button. I tried to change the slider to slide to the center of the button's button.titleLabel: button.titleLabel!.frame.midX but a weird bug occurs where the slider slides incorrectly.
for button in buttons {
UIView.animate(withDuration: 0.2, animations: {
self.slider.frame.origin.x = button.titleLabel!.frame.midX // button.frame.midX was what was originally used
// if it's the selected button break ...
})
}
How can I get the slider to slide to the center of the button's titleLabel? For example I want it to slide to the middle of the word Pencil which is the title of the button with its contentEdgeInsets changed and not the button itself.
I am using phonenumbers in Python to figure out the carrier of a number. I keep getting blank output. Here is my code:
import phonenumbers
import phonenumbers.carrier
num_object = None
while num_object is None:
try:
num = input("phone number: ")
num_object = phonenumbers.parse("+1 {}".format(num), region="US")
except Exception as error:
print("ERROR: {}".format(error))
carrier = phonenumbers.carrier.name_for_number(num_object, "en")
print(carrier)
I have a .csv file, called File1 that I would like insert into my already existing table, called Table1 within SQL Server. The .csv file has the following structure and values:
ID Location Name Date
2 New York Sally 20191010
3 California Ben 20191110
My table within SQL server has the same structure:
ID Location Name Date
1 Houston Kelly 20200810
I wish for output to look like the value below, I wish for the date to be in order as well.
ID Location Name Date
1 Houston Kelly 20200810
2 New York Sally 20191010
3 California Ben 20191110
I am doing this:
INSERT INTO dbo.Table1(Microsoft.ACE.OLEDB12.0; Database = 'Data',
'SELECT * FROM OpenRowSet' Dir = C:\downloads, 'SELECT * FROM File1.csv')
I am still researching to see what it is I am doing wrong with the above command. Any suggestion is appreciated
I am trying to create a function allsametree(tree) that takes a list, tree, as an input and returns TRUE or FALSE if all the elements of the list are numerically identical. So far, I have the following function:
def allsametree(tree):
if not type(tree) == list:
return tree
if type(tree) is list:
final_lst = []
for item in tree:
final_lst.append(allsametree(item))
return final_lst[1:] == final_lst[:-1]
While for the most part, this function works, it runs into an issue when evaluating allsametree([1, [[[[[2]]]]]])
Any tips, or alternative ways you would approach this problem?
I'll create an not specific structure so the problem became more easy to understand. Considering a DB structure that store books information:
from flask_sqlalchemy import SQLAlchemy
from flask_marshmallow import Marshmallow
db = SQLAlchemy()
#Base class to create some good pratices fields
class Base(db.Model):
__abstract__ = True
id = db.Column(db.Integer, primary_key=True)
date_created = db.Column(db.DateTime, default=db.func.current_timestamp())
date_modified = db.Column(db.DateTime, default=db.func.current_timestamp(),
onupdate=db.func.current_timestamp())
class Book(Base):
name = db.Column(db.String(255), nullable=False)
pages = db.Column(db.Integer, nullable=True)
tags = db.relationship('BooksTags', back_populates="book")
class BooksTags(db.Model):
__tablename__ = 'book_tag'
tag_id = db.Column(db.Integer, db.ForeignKey('book.id'), primary_key=True)
book_id = db.Column(db.Integer, db.ForeignKey('tag.id'), primary_key=True)
book = db.relationship('Book', back_populates='tags')
tag = db.relationship('Tag', back_populates='books')
class Tags(Base):
name = db.Column(db.String(255), nullable=False)
books = db.relationship('BooksTags', back_populates="tag")
With this code I have a "Many to Many" structure, and the works pretty well for me, but I'm stuck when I try to create queries based on tag, per example:
I've been trying to use some aggregation functions like array_agg and group_concat, but I always returns different errors message, I'm not sure how to do it.
On pure SQL I'd query something like this:
SELECT
group_concat(tag.name) AS tags,
book.name as book_name
FROM
book
INNER JOIN book_tag ON book.id = book_tag.book_id
INNER JOIN tag ON tag.id = book_tag.tag_id
GROUP BY
book.id
But IDK how to filter this query.
Ok after reading and asking some friends helps I've managed to do it with SQL:
In the case of "at least one" tag:
SELECT
group_concat(tag.name) AS tags,
book.name as book_name
FROM
book
INNER JOIN book_tag ON book.id = book_tag.book_id
INNER JOIN tag ON tag.id = book_tag.tag_id AND tag.name in (<insert tag list>)
GROUP BY
book.id
In the case of "must have all" tags:
SELECT
group_concat(tag.name) AS tags,
book.name as book_name
FROM
book
INNER JOIN book_tag ON book.id = book_tag.book_id
INNER JOIN tag ON tag.id = book_tag.tag_id AND tag.name in (<insert tag list>)
GROUP BY
book.id
WHERE
COUNT(tag.name) > <sizeof tag array>
But I still don't know how to do it with SQLAlchemy.
I am trying to show a jQuery UI dropdown menu(https://jqueryui.com/menu/) . I am able to integrate jQuery UI for autocomplete and Datepicker . I am trying to implement the jQuery menu on "Age" columnDef.
https://plnkr.co/edit/7SPkMmx2kfqiSZEq
this.columnDefs = [
{
headerName: "Athlete",
field: "athlete",
editable:true,
cellEditor: "dropdownUI"
},
{
headerName: "Date",
field: "date",
editable: true,
cellEditor: "datePicker"
},
{
headerName: "Age",
field: "age",
editable:true,
cellEditor: "dropdownUIOnKeyPress"
},
{
headerName: "Country",
field: "country"
},
{
headerName: "Year",
field: "year"
},
{
headerName: "Sport",
field: "sport",
cellEditor: "agRichSelectCellEditor",
cellEditorParams: {
values: this.sports
},
editable:true
}
];
function getdropdownUIOnKeyPress() {
function DropdownuiOnKeyPress() {}
DropdownuiOnKeyPress.prototype.init = function(params) {
this.eInput = document.createElement("input"); //<====
this.eInput.value = params.value;
var listMenu = [
"ActionScript",
"AppleScript",
"Asp"
];
// *************************************************************
// adding dropdown menu on enter of char
// https://jqueryui.com/menu/
var z = document.createElement('div'); // is a node
var html = "";
for(var j = 0; j < listMenu.length; j++){
html +="<img src='https://'>";
html +="<ul>";
html +="<li>"+listMenu[j]+"</li>";
html +="<ul>";
}
z.innerHTML = html;
$("body").appendChild(z);
// show above div when some character is input
$(this.eInput).menu();
};
DropdownuiOnKeyPress.prototype.getGui = function() {
return this.eInput;
};
DropdownuiOnKeyPress.prototype.afterGuiAttached = function() {
this.eInput.focus();
this.eInput.select();
};
DropdownuiOnKeyPress.prototype.getValue = function() {
return this.eInput.value;
};
DropdownuiOnKeyPress.prototype.destroy = function() {};
DropdownuiOnKeyPress.prototype.isPopup = function() {
return false;
};
return DropdownuiOnKeyPress;
}
function getdropdownUI() {
function Dropdownui() {}
Dropdownui.prototype.init = function(params) {
this.eInput = document.createElement("input");
this.eInput.value = params.value;
var availableTags = [
"ActionScript",
"AppleScript",
"Asp",
"BASIC",
"C",
"C++",
"Clojure",
"COBOL",
"ColdFusion",
"Erlang",
"Fortran",
"Groovy",
"Haskell",
"Java",
"JavaScript",
"Lisp",
"Perl",
"PHP",
"Python",
"Ruby",
"Scala",
"Scheme"
];
// adding of autocomplete- similarly trying to add dropdown above
$(this.eInput).autocomplete({
source: availableTags
});
};
Dropdownui.prototype.getGui = function() {
return this.eInput;
};
Dropdownui.prototype.afterGuiAttached = function() {
this.eInput.focus();
this.eInput.select();
};
Dropdownui.prototype.getValue = function() {
return this.eInput.value;
};
Dropdownui.prototype.destroy = function() {};
Dropdownui.prototype.isPopup = function() {
return false;
};
return Dropdownui;
}
function getDatePicker() {
function Datepicker() {}
Datepicker.prototype.init = function(params) {
this.eInput = document.createElement("input");
this.eInput.value = params.value;
$(this.eInput).datepicker({ dateFormat: "dd/mm/yy" });
};
Datepicker.prototype.getGui = function() {
return this.eInput;
};
Datepicker.prototype.afterGuiAttached = function() {
this.eInput.focus();
this.eInput.select();
};
Datepicker.prototype.getValue = function() {
return this.eInput.value;
};
Datepicker.prototype.destroy = function() {};
Datepicker.prototype.isPopup = function() {
return false;
};
return Datepicker;
}
I'm trying to use a cross compiler running on Ubuntu to compile some Raspberry Pi code. I have already tested the executable and it works fine, but comparing that executable to the one generated by the native compiler (gcc on Raspberry Pi) I see there are some differences between the binary files.
The native compiler is gcc (Raspbian 8.3.0-6+rpi1) 8.3.0 running on Raspbian GNU/Linux 10 (buster). The cross compiler is arm-linux-gnueabihf-gcc-8 (Ubuntu/Linaro 8.4.0-1ubuntu1~18.04) 8.4.0 running on Ubuntu 18.04.4 (Bionic Beaver).
I tried to make sure that the cross compiler is using the same compilation flags as the one on the Pi uses by default:
marm to generate code that runs in ARM state (instead of Thumb)march=armv6mfpu=vfpO0 and I turned off the optimizations to make sure nothing "funny" is going onI wrote the most bare-bones C code I could think of:
int main() {}
And then compiled it into assembly using Unified Assembly Language syntax. Both compilers generated the exact same assembly (except for the .ident line, but that one doesn't matter):
.arch armv6
.eabi_attribute 28, 1
.eabi_attribute 20, 1
.eabi_attribute 21, 1
.eabi_attribute 23, 3
.eabi_attribute 24, 1
.eabi_attribute 25, 1
.eabi_attribute 26, 2
.eabi_attribute 30, 6
.eabi_attribute 34, 1
.eabi_attribute 18, 4
.file "main.c"
.text
.align 2
.global main
.arch armv6
.syntax unified
.arm
.fpu vfp
.type main, %function
main:
@ args = 0, pretend = 0, frame = 0
@ frame_needed = 1, uses_anonymous_args = 0
@ link register save eliminated.
str fp, [sp, #-4]!
add fp, sp, #0
mov r3, #0
mov r0, r3
add sp, fp, #0
@ sp needed
ldr fp, [sp], #4
bx lr
.size main, .-main
.ident "GCC: (Ubuntu/Linaro 8.4.0-1ubuntu1~18.04) 8.4.0"
.section .note.GNU-stack,"",%progbits
I then tried something else: I just built the object file before linking it to any shared libraries, but even then there will be differences between the native and cross compiled files. Therefore, it's not an issue of the installed libraries being different between Raspbian and Ubuntu.
If I compile this assembly code using the native compiler and the cross compiler, I will get different executables even though they function the same way.
Even though it's not a big deal since both executables work as expected (they do nothing and return 0) I would like to know:
Any idea how can I keep the timer running even after the method ends
public static void Method(){
Timer Timer = new Timer(state: null, dueTime: 0, period: 60000, callback: (o) => {
Console.WriteLine("Thank you <3");
});
}
The code above displays something like this:
1. Thank you <3
I want to achieve something like this:
1. Thank you <3 (after 0 min)
2. Thank you <3 (after 1 min)
3. Thank you <3 (after 2 min)
4. ...
I tried GC.KeepAlive(Timer); but doesn't seem to work.
I know this is related to the garbage collector, and I can work around this and create Timer as a global variable, but are there any better suggestions?
I got two object arrays to compare and return a result which contains two arrays one for insert and one for update.
let a = [
{ empid: "emp001", name: "test1", status: "emp" },
{ empid: "emp002", name: "test2", status: "ex-emp" },
{ empid: "emp003", name: "test3", status: "emp" }
];
let b = [
{ empid: "emp001", name: "test1_updated", status: "emp" },
{ empid: "emp002", name: "test2", status: "emp" }
];
//insert array
// console.log(_.differenceBy(a, b, 'empid'));
//update array
let updateArr = [],
insertArr = [];
for (let i = 0; i < a.length; i++) {
let aObj = a[i];
for (let j = 0; j < b.length; j++) {
let bObj = b[j];
if (aObj.empid === bObj.empid) {
if (aObj.status !== bObj.status || aObj.name !== bObj.name) {
updateArr.push(aObj);
}
} else {
insertArr.push(aObj);
}
}
}
console.log("--update--");
console.log(updateArr);
console.log("--insert--");
console.log(insertArr);Code Links - https://codesandbox.io/s/fervent-kare-ixht9?fontsize=14&hidenavigation=1&theme=dark
I am working on a simple project where I have a login system with multiple users where each user will login and save form entries in a file. I am trying to build session timeout so that after 2 minutes of inactivity it can log me out.
login.php page where I provide my user and password.index.php page where I have form with two textbox and a button.index.php page I have Save Data button which if I click it calls save.php then it save form entries by overwriting in file.logout link on my index.php page which if I click then it will log me out and redirect to login.php page.All above things works fine. Now I am trying to build this session timeout so that it can log me out after x minutes of inactivity and redirect me to login.php page.
Here is my index.php file:
<?php
declare(strict_types = 1);
// Start session.
session_start();
// Include helper functions.
require_once 'helpers.php';
// 2 mins in seconds
$inactive = 120;
if(isset($_SESSION['timeout']) ) {
$session_life = time() - $_SESSION['timeout'];
if($session_life > $inactive)
{
redirect('logout.php');
return;
}
}
$_SESSION['timeout'] = time();
// Redirect user to login page if not authenticated.
if (! check_auth()) {
redirect('login.php');
return;
}
?>
<!doctype html>
<html>
<head>
<title>Home</title>
</head>
<body>
<div>
<h1>Website Title</h1> <a href="logout.php">Logout</a> </div>
<div>
<p>Welcome back, <?= $_SESSION['user_id'] ?>!</p>
</div>
<form method="post">
<input type="text" name="field1" />
<input type="text" name="field2" />
<input type="submit" name="submit" value="Save Data"> </form>
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
<script>
$(function() {
$('form').submit(function(e) {
e.preventDefault();
$.post({
url: 'save.php',
data: $(this).serialize(),
}).done(response => {
response = JSON.parse(response);
if(response.message) {
alert(response.message);
}
});
});
});
</script>
</body>
</html>
Here is my save.php file:
<?php
declare(strict_types=1);
// Start session.
session_start();
// Include helper functions.
require_once 'helpers.php';
// 2 mins in seconds
$inactive = 120;
if(isset($_SESSION['timeout']) ) {
$session_life = time() - $_SESSION['timeout'];
if($session_life > $inactive)
{
redirect('logout.php');
return;
}
}
$_SESSION['timeout'] = time();
// Redirect user to login page if not authenticated.
if (! check_auth()) {
redirect('login.php');
return;
}
// save form entries in a file
Here is my helpers.php file:
<?php
declare(strict_types=1);
if (! function_exists('check_auth')) {
function check_auth(): bool
{
return isset($_SESSION['user_id']);
}
}
if (! function_exists('logout'))
{
function logout()
{
if (isset($_SESSION['user_id'])) {
$trace = json_decode(file_get_contents('current_user.txt'));
if ((int) $trace->user_id === $_SESSION['user_id']) {
$content = isset($trace->revoked_user_id)
? json_encode(['user_id' => $trace->revoked_user_id, 'created_at' => (new DateTime('now'))->format('Y-m-d H:i:s')])
: '';
file_put_contents('current_user.txt', $content);
}
unset($_SESSION['user_id']);
unset($_SESSION['timeout']);
}
}
}
if (! function_exists('redirect')) {
function redirect(string $url, int $status_code = 303): void
{
header('Location: ' . $url, true, $status_code);
die();
}
}
Here is my logout.php file:
<?php
declare(strict_types=1);
// Start session.
session_start();
// Include helper functions.
require_once 'helpers.php';
logout();
redirect('login.php');
Problem Statement
I am redirecting to logout.php file once it is idle for 2 minutes in index.php and save.php. Here is what I am noticing -
index.php page and after 2 minutes of inactivity, if I refresh my browser then it logs me out fine without any issues and redirects me to login.php page.index.php page again and after 2 minutes of inactivity if I click on Save Data button then it gives me error on my console but techincally it should have logged me out and redirected me to login.php page.Below is the ajax call I have in my index.php page -
<script>
$(function() {
$('form').submit(function(e) {
e.preventDefault();
$.post({
url: 'save.php',
data: $(this).serialize(),
}).done(response => {
response = JSON.parse(response);
if(response.message) {
alert(response.message);
}
});
});
});
</script>
I get a json parsing error for my point 2 whenever I click Save Data button after 2 minutes of inactivity. And value of response variable is full login.php in html. I am not sure why it is happening. Do we need to check for session validation in jquery itself before it calls save.php?
Thank you in advance for your help! (Code Below) (Link to 1st piece of data) (Link to data I want to add)
I am trying to import data from a second CSV (above) and add a second line to this plot based on that CSVs data. What is the best approach to doing this? (Images below)
The squiggly lines on the plot represent the range of data.
import pandas as pd
import numpy as np
import matplotlib.pyplot as plt
import warnings
warnings.filterwarnings('ignore')
raw_data = pd.read_csv('all-deep-soil-temperatures.csv', index_col=1, parse_dates=True)
df_all_stations = raw_data.copy()
selected_soil_station = 'Minot'
df_selected_station = df_all_stations[df_all_stations['Station'] == selected_soil_station]
df_selected_station.fillna(method = 'ffill', inplace=True);
df_selected_station_D=df_selected_station.resample(rule='D').mean()
df_selected_station_D['Day'] = df_selected_station_D.index.dayofyear
mean=df_selected_station_D.groupby(by='Day').mean()
mean['Day']=mean.index
maxx=df_selected_station_D.groupby(by='Day').max()
minn=df_selected_station_D.groupby(by='Day').min()
mean['maxx20']=maxx['20 cm']
mean['minn20']=minn['20 cm']
plt.style.use('ggplot')
bx = mean.plot(x='Day', y='20 cm',color='black')
plt.fill_between(mean['Day'],mean['minn20'],mean['maxx20'],color='blue',alpha = 0.2);
bx.set_xlabel("Day of the year")
bx.set_ylabel("Temperature in Celsius")
bx.set_title("Soil Temp, Air Temp, and Snow Depth for " + str(selected_soil_station))
What I have:
What I want to have:
I am using Entity Framework Core 3.1.8 with SQL Server 2016.
Consider following example (simplified for clarity):
Database table is defined as follows:
CREATE TABLE [dbo].[Product]
(
[Id] INT IDENTITY(1,1) NOT NULL ,
[ProductName] NVARCHAR(500) NOT NULL,
CONSTRAINT [PK_Product] PRIMARY KEY CLUSTERED (Id ASC) WITH (FILLFACTOR=80),
CONSTRAINT [UQ_ProductName] UNIQUE NONCLUSTERED (ProductName ASC) WITH (FILLFACTOR=80)
)
And following C# program:
using System;
using System.Linq;
using System.Reflection;
namespace CcTest
{
class Program
{
static int Main(string[] args)
{
Product product = null;
string newProductName = "Basketball";
using (CcTestContext context = new CcTestContext())
using (var transaction = context.Database.BeginTransaction())
{
try
{
product = context.Product.Where(p => p.ProductName == newProductName).SingleOrDefault();
if (product is null)
{
product = new Product { ProductName = newProductName };
context.Product.Add(product);
context.SaveChanges();
transaction.Commit();
}
}
catch(Exception ex)
{
transaction.Rollback();
}
}
if (product is null)
return -1;
else
return product.Id;
}
}
}
Everything works as expected during testing - new product is inserted into the table if it didn't already exist. So I never expect [UQ_ProductName] constraint to be hit because everything is done as a single transaction.
However, in reality this code is a part of the business logic connected to Web API. What happened was that 10 instances of this code using the same new product name got executed almost simultaneously (execution time was the same within one hundredth of a second, we save it in the log table). One of them succeeded (new product name got inserted into the table) but the rest of them failed with following exception:
Violation of UNIQUE KEY constraint 'UQ_ProductName'. Cannot insert duplicate key in object 'dbo.Product'. The duplicate key value is (Basketball). The statement has been terminated.
Why did this happen? Isn't this exactly what my use of transaction was supposed to prevent? That is I think checking whether row with such value already exists and inserting if it doesn't should have been an atomic operation. After the first API call was executed and row was inserted the rest of API calls should have detected value already exists and not tried to insert a duplicate.
Can someone explain if there is an error in my implementation? Clearly it is not working the way I expect.
I have this json:
[
{
"name": "MARVEL",
"superheroes": "yes"
},
{
"name": "Big Bang Theroy",
"superheroes": "NO",
"children": [
{
"name": "Sheldon",
"superheroes": "NO"
}
]
},
{
"name": "dragon ball",
"superheroes": "YES",
"children": [
{
"name": "goku",
"superheroes": "yes",
"children": [
{
"name": "gohan",
"superheroes": "YES"
}
]
}
]
}
]
I know how to loop and go through it but I need an output like this:
[
{
"name": "MARVEL",
"answer": [
{
"there_are_superheroes": "YES"
}
]
},
{
"name": "Big Bang Theroy",
"answer": [
{
"there_are_superheroes": "NO",
"new_leaft": [
{
"name": "sheldon",
"there_are_superheroes": "NO"
}
]
}
]
},
{
"name": "dragon ball",
"answer": [
{
"there_are_superheroes": "YES",
"new_leaft": [
{
"name": "goku",
"answer": [
{
"there_are_superheroes": "YES",
"new_leaft": [
{
"name": "gohan",
"answer": [
{
"there_are_superheroes": "YES"
}
]
}
]
}
]
}
]
}
]
}
]
I tried something like this:
format(d) {
if (d.children) {
d.children.forEach((d) => {
format;
});
}
}
format(data);
I don't know how to get the structure I want. I have tried to do it with foreach, but at one point I don't know how to dynamically access until the last children, this is an example but I can have n levels where there can be elements with more children. In my real project I am getting a structure from a web service, I need to structure it like this.
Basically this is something like a tree, so I want to put the first level of children inside an attribute called tree
the attribute called superheroes I want it to be shown inside an array called answer and inside of it, there_are_superheroes it will have its value.
"name": "MARVEL",
"answer": [
{
"there_are_superheroes": "YES", --> `there_are_superheroes` was `superheroes`,
"new_leaft": [
{
.
.
and new_leaft is the equivalent of children
As I said, I know how to go through objects and arrays but in this case, I don't know how to go to the last children nested of each object.
When you're updating cocoapods, you can update a single pod or all pods, either pod update or pod update <podname>. In both cases, it updates the configuration of the project, xcconfig files, and other things that impact all pods. If you specify a pod, it then updates that one pod. If you don't specify a pod, it updates all the pods.
Is there a way to update just this other stuff without updating any pods so I can commit that separately to git?
My workaround so far has been to find a pod that hasn't been updated and pod update that pod. I get all the new project settings, new configuration, etc. with no actual pod changes. But that relies on finding (and having) a pod that hasn't changed.
I am trying to parse an XML recursively to create JSON array using dataweave 2 but I am not able to do so.
My Input XML is given below -
<?xml version="1.0" encoding="utf-16"?>
<MessageParts xmlns="http://schemas.microsoft.com/dynamics/2011/01/documents/Message">
<BillsOfMaterials xmlns="http://schemas.microsoft.com/dynamics/2008/01/documents/BillsOfMaterials">
<SenderId>121</SenderId>
<BOMVersion class="entity">
<BOMId>BOM0012605</BOMId>
<ItemId>9650084</ItemId>
<ItemIdCommercial></ItemIdCommercial>
<Name>SmartRip for Folding Carton</Name>
<RecId>5637161103</RecId>
<BOMTable class="entity">
<BOMId>BOM0012605</BOMId>
<Name>SmartRip for Folding Carton</Name>
<RecId>5637160354</RecId>
<BOM class="entity">
<BOMId>BOM0012605</BOMId>
<BOMQty>1.0000</BOMQty>
<BOMType>Item</BOMType>
<ItemId>9650092</ItemId>
<RecId>5637307757</RecId>
<UnitId>PCS</UnitId>
<InventDimBOM class="entity">
<RecId>5637213290</RecId>
</InventDimBOM>
<BOMTable>
<BOMId>BOM0012613</BOMId>
<Name>FlexRip Classic Intel kernel and tools</Name>
<RecId>5637161355</RecId>
<BOM>
<BOMType>Item</BOMType>
<ItemId>9650079</ItemId>
<BOMQty>1.00</BOMQty>
<UnitId>PCS</UnitId>
<BOMId>BOM0012613</BOMId>
<RecId>5637307799</RecId>
</BOM>
<BOM>
<BOMType>Item</BOMType>
<ItemId>9644919T</ItemId>
<BOMQty>1.00</BOMQty>
<UnitId>PCS</UnitId>
<BOMId>BOM0012613</BOMId>
<RecId>5637307800</RecId>
</BOM>
<BOM>
<BOMType>Item</BOMType>
<ItemId>9644920</ItemId>
<BOMQty>1.00</BOMQty>
<UnitId>PCS</UnitId>
<BOMId>BOM0012613</BOMId>
<RecId>5637307801</RecId>
</BOM>
<BOM>
<BOMType>Item</BOMType>
<ItemId>9700720Z</ItemId>
<BOMQty>1.00</BOMQty>
<UnitId>PCS</UnitId>
<BOMId>BOM0012613</BOMId>
<RecId>5637307802</RecId>
<BOMTable>
<BOMId>BOM012173</BOMId>
<Name></Name>
<RecId>5637157832</RecId>
<BOM>
<BOMType>Item</BOMType>
<ItemId>9700595</ItemId>
<BOMQty>1.00</BOMQty>
<UnitId>PCS</UnitId>
<BOMId>BOM012173</BOMId>
<RecId>5637333626</RecId>
</BOM>
</BOMTable>
<BOMTable>
<BOMId>BOM012173</BOMId>
<Name></Name>
<RecId>5637157832</RecId>
<BOM>
<BOMType>Item</BOMType>
<ItemId>9700595</ItemId>
<BOMQty>1.00</BOMQty>
<UnitId>PCS</UnitId>
<BOMId>BOM012173</BOMId>
<RecId>5637333626</RecId>
</BOM>
<BOM>
<BOMType>Item</BOMType>
<ItemId>9608224Z</ItemId>
<BOMQty>1.00</BOMQty>
<UnitId>PCS</UnitId>
<BOMId>BOM012173</BOMId>
<RecId>5637333627</RecId>
</BOM>
</BOMTable>
</BOM>
<BOM>
<BOMType>Item</BOMType>
<ItemId>9683336L</ItemId>
<BOMQty>1.00</BOMQty>
<UnitId>PCS</UnitId>
<BOMId>BOM0012613</BOMId>
<RecId>5637307803</RecId>
<BOMTable>
<BOMId>BOM0012781</BOMId>
<Name>Esko Suite 12.1 A5 Software box</Name>
<RecId>5637165603</RecId>
<BOM>
<BOMType>Item</BOMType>
<ItemId>G211249</ItemId>
<BOMQty>1.00</BOMQty>
<UnitId>PCS</UnitId>
<BOMId>BOM0012781</BOMId>
<RecId>5637309242</RecId>
</BOM>
</BOMTable>
<BOMTable>
<BOMId>BOM0012781</BOMId>
<Name>Esko Suite 12.1 A5 Software box</Name>
<RecId>5637165603</RecId>
<BOM>
<BOMType>Item</BOMType>
<ItemId>G211249</ItemId>
<BOMQty>1.00</BOMQty>
<UnitId>PCS</UnitId>
<BOMId>BOM0012781</BOMId>
<RecId>5637309242</RecId>
</BOM>
<BOM>
<BOMType>Item</BOMType>
<ItemId>G25583961_24</ItemId>
<BOMQty>1.00</BOMQty>
<UnitId>PCS</UnitId>
<BOMId>BOM0012781</BOMId>
<RecId>5637309243</RecId>
</BOM>
</BOMTable>
</BOM>
</BOMTable>
</BOM>
<BOM class="entity">
<BOMId>BOM0012605</BOMId>
<BOMQty>1.0000</BOMQty>
<BOMType>Item</BOMType>
<ItemId>9608221Z</ItemId>
<RecId>5637307758</RecId>
<UnitId>PCS</UnitId>
<InventDimBOM class="entity">
<RecId>5637213290</RecId>
</InventDimBOM>
</BOM>
<BOM class="entity">
<BOMId>BOM0012605</BOMId>
<BOMQty>1.0000</BOMQty>
<BOMType>Item</BOMType>
<ItemId>9700624Y</ItemId>
<RecId>5637307759</RecId>
<UnitId>PCS</UnitId>
<InventDimBOM class="entity">
<RecId>5637213291</RecId>
</InventDimBOM>
<BOMTable>
<BOMId>BOM012172</BOMId>
<Name></Name>
<RecId>5637157831</RecId>
<BOM>
<BOMType>Item</BOMType>
<ItemId>9644921</ItemId>
<BOMQty>1.00</BOMQty>
<UnitId>PCS</UnitId>
<BOMId>BOM012172</BOMId>
<RecId>5637333624</RecId>
</BOM>
</BOMTable>
</BOM>
<BOM class="entity">
<BOMId>BOM0012605</BOMId>
<BOMQty>1.0000</BOMQty>
<BOMType>Item</BOMType>
<ItemId>9700815</ItemId>
<RecId>5637307760</RecId>
<UnitId>PCS</UnitId>
<InventDimBOM class="entity">
<RecId>5637213290</RecId>
</InventDimBOM>
</BOM>
</BOMTable>
<InventDim class="entity">
<RecId>5637199988</RecId>
</InventDim>
</BOMVersion>
</BillsOfMaterials>
</MessageParts>
I want to create JSON array of all the BOMs (a flat structure with no hierarchy) with parentId as RecId of parent BOM as shown below -
Output -
[
{
"id": "5637307757",
"productId": "9650092",
"parentId": null
},
{
"id": "5637307799",
"productId": "9650079",
"parentId": "5637307757"
},
{
"id": "5637307800",
"productId": "9644919T",
"parentId": "5637307757"
},
{
"id": "5637307801",
"productId": "96AR060W",
"parentId": "5637307757"
},
{
"id": "5637307802",
"productId": "9700720Z",
"parentId": "5637307757"
},
{
"id": "5637333626",
"productId": "9700595",
"parentId": "5637307802"
},
{
"id": "5637333626",
"productId": "9700595",
"parentId": "5637307802"
},
{
"id": "5637333627",
"productId": "9608224Z",
"parentId": "5637307802"
},
{
"id": "5637307803",
"productId": "9683336L",
"parentId": "5637307757"
},
{
"id": "5637309242",
"productId": "G211249",
"parentId": "5637307803"
},
{
"id": "5637309242",
"productId": "G211249",
"parentId": "5637307803"
},
{
"id": "5637309243",
"productId": "G25583961_24",
"parentId": "5637307803"
}
]
Mapping Rules -
The difference with the suggested answer is that I need to set parentid with the immediate recid of the BOM and not of the BOM table.
@Value
@Builder
public class Parent {
@NotNull
private String firstName;
private Child child;
@Builder
public class Child {
@NotNull
private String firstName;
here is my challenge, we are doing DDD and we do the validation of objects within constructor or via a build method (builder pattern). What's I would like to achieve is to be able to construct the full object tree in a way that I can collect all validation errors.
As you can see with the following code, I will with this only collect the errors of the child missing the missing firstname of the parent.
Note that these objects are created manually, otherwise, I would just add @Valid's and such, but I don't think this can work when you do build objects manually.
FYI : I use the spring boot stack.
Parent.builder()
.firstName(null)
.child(Child.builder()
.firstName(null)
.build())
.build();