Magento 2: event to change the order collection

Here are two orders that I received through the rest API
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How can I catch an event, observer to change the value in the API?

Where can I see when an event was created in the Microsoft Outlook (OWA) web interface?

Where can I see when an event was created in the Microsoft Outlook (OWA) web interface?

check boxes: which option seems the clearest when setting up an event

I would go with the nr. 1 because Nr. 2 is very unclear in my opinion.
But I would still use a different text to make it clearer.
For now: "Choose if you want to add tickets to your event, they can be free or paid" is a bit interpretable (with English as a second language I understand something like if I want to give tickets within the event).

I would go with something like:
Activate if admission to your event is done with tickets (free or paid).
Use this option if the entrance to the event is made with tickets (free or paid).

Magento 1.9 – What's wrong with my Event Observer?

I just want to show the name of my event:

app etc modules Gta_RestrictProductByCountry.xml






app code local Gta RestrictProductByCountry etc config.xml


app code local Gta RestrictProductByCountry Model Observer.php

        Mage::log($cart_product_check->getName(), null, 'orderproduct.log',true);

python: is it possible to stop the destruction event in tkinter?

Maybe the title of the question sounds a little strange. Let me explain: I am trying to develop a simple text editor in tkinter and when users press the x button (in the upper right corner), the program executes a function that displays a "yes no cancel" dialog box. Here is the code:

def __destroy_win(self, event):
    ''' on closing window does something '''

    if event.widget == self._textarea:
        # displaying an "are you sure" msg
        answer = messagebox.askyesnocancel(title="LaTeX Editor", message="Do you want to save the file")

self.master.bind("", self.__destroy_win)

(This code belongs to a class that is the reason for the auto parameter)

Now, my question is: is it possible when the user presses cancel (then the answer variable is set to None) stop the destruction event and keep the window on the screen?

Thank you for your time and sorry for any mistake in English.

Lightweight C ++ signals / slots or event system

This means that there is no need to add results from the listeners of a transmission signal.

Technically, I suppose the slots are whatever std :: have their function, so they are not special. So I guess this is more a Signals / Connections design.

The "connection" or Signal :: Listener is the owner of the callback. Ideally, this is owned by the object that has the callback function or the object that captures your lambda. That way, when that object goes out of reach, so does the callback, which prevents it from being recalled.

You could dump listeners in a container on the object and forget about them. Or store instances with specific names of them, which is very useful for changing the object you are listening to or disconnecting.

class Signal
    using fp = std::function;
    std::forward_list > registeredListeners;
    using Listener = std::shared_ptr;

    Listener add(const std::function &cb) {
        // passing by address, until copy is made in the Listener as owner.
        Listener result(std::make_shared(cb));
        return result;

    void raise(FuncArgs... args) {
        registeredListeners.remove_if((&args...)(std::weak_ptr e) -> bool {
            if (auto f = e.lock()) {
                return false;
            return true;


Signal bloopChanged;

// ...

Signal::Listener bloopResponse = bloopChanged.add(()(int i) { ... });
// or
decltype(bloopChanged)::Listener bloopResponse = ...

// let bloopResponse go out of scope.
// or re-assign it
// or reset the shared_ptr to disconnect it

How to resolve the message "256966901 Bluetooth: hclo: unexpected event for operation code 0xfc2f" during startup in Ubuntu 19.04?

Every time I start on Ubuntu 19.04 it shows this message. This does not cause any problems. The system starts correctly and Bluetooth also works correctly. But I don't know why this happens. And this is annoying …

magento2: the event is not activated when the full page cache is enabled in Magento 2

I am trying to execute a code on each page load. I have the following


This works in addition to when the full page cache is enabled. When enabled, my observer does not run.

Is there a better event that I should look to allow me to execute code on each page load, regardless of whether the entire cache page is enabled or disabled?

Java: the thread expects and executes different methods based on some event or value

Case of use:

I am writing a proactive session updater; The use case is for parallel API calls or sequential API calls that intercept the API call and verify if the token is valid.

If the token is valid, continue with the call
If the token is not valid, first update the token and then continue with the API call.

This is a child's game for sequential calls, however, for parallel calls, I want to avoid DDOSing my server for repeated token calls.

Instead, I have the following flow:

Suppose a burst of five parallel calls is intercepted by my token updater
The first call (Thread) will update the token, the other four will wait until the first call updates the token. Once the token is updated, other threads continue with normal execution and therefore skip the token update.

Another point here is that requests may appear in bursts of 5 API calls at T = 1 and 10 API calls at some T = 2, so I am also interested in resetting values
(as in executeLatch)

Now, the code I have to implement this is loaded with frameworks and jargon, instead, for simplicity, I have found a following skeleton of overcoming:

class SingleUpdater {

    private val lock = ReentrantLock()
    private val executionLatch = AtomicBoolean(false)

    // Say valueToBeUpdated is my session token 
    private val valueToBeUpdated = AtomicInteger(0)

    private val awaitingThreadsCounter = AtomicInteger(0)

    fun start() {
        for (i in 0 until 100) {


        for (i in 0 until 1) {


    private fun execute() {

        println("Trying to acquire lock ${Thread.currentThread().name}")
        try {
            awaitingThreadsCounter.set(awaitingThreadsCounter.get() + 1)
            println("============================= awaitingThreadsCounter = ${awaitingThreadsCounter.get()} ============================= ")
            println("I am Thread ${Thread.currentThread().name} I have acquired lock")
            if (executionLatch.get()) {
            } else {

        } catch (e: Exception) {

        } finally {
            println("Released by ${Thread.currentThread().name}")



    private fun continueWithRestOfExecution() {
        if (awaitingThreadsCounter.get() >= 0) awaitingThreadsCounter.set(awaitingThreadsCounter.get() - 1)
        println("I am Thread: ${Thread.currentThread().name} and I am executing continueWithRestOfExecution")
        if (awaitingThreadsCounter.get() == 0) {
            println(" =============================  BALANCED  ============================= ")

    private fun doUpdate() {
        try {
            valueToBeUpdated.set(valueToBeUpdated.get() + 1)
            println("=============================== Value is: $valueToBeUpdated ${Thread.currentThread().name} ===============================")
        } catch (ex: Exception) {


Please help analyze extreme cases here.

sql – How to create a mysql scheduled event that traverses all the records in a table, and updates a record field?

I have a table with 18 thousand user records to a tourniquet, in production a field is modified with a true value, after the next day I want a procedure stored in the early morning change the status of that field in the table, not to do so by programming.

Thanks in advance for the help.