magento2 – Magento 2: how to perform operations after updating the price of the product from the backend

You must develop your question to get an appropriate answer. As – What kind of operation do you want to perform and when do you need to perform after updating the product price from the backend?

Such an example – If you want to update the product price of the article added to the cart, you must use the Object Manager:

$cart = $objectManager->get('MagentoCheckoutModelCart');
$priceHelper = $objectManager > create('MagentoFrameworkPricingHelperData');
$items = $cart->getQuote()->getAllItems();

A book to explain the direct sum and direct product by diagrams.

A book to explain the direct sum and the direct product by diagrams (commutative diagrams). And also a book to explain the pushout and the pullout by diagrams.

Thank you!

Windows App – SynaptiCAD Product Suite 20.41 | NulledTeam UnderGround

Size of the file: 294 MB

SynaptiCAD Suite is a software collection that allows you to create and edit timelines. The TestBencher app provides you with all the tools needed to create and maintain test benches with minimal effort. Want a powerful simulation environment, but easy to use? SynaptiCAD simulation and debugging tools provide a standard interface for controlling all your simulation tools.
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SynaptiCAD timeline editors have the most comprehensive and accurate time analysis capabilities available on the market, including delay correlation, reconvend ventilation, and clocks that model jitter and buffer delays. Three different editing levels let you choose the best price and the best features for your application.

Free yourself from the tedious process of manually writing the Verilog, VHDL and SystemC test benches. Generate them graphically from chronograms. SynaptiCAD offers 3 levels of test bench generation to meet all your design needs. SynaptiCAD supports the latest emulation and test equipment technologies, allowing you to transfer your simulation and synchronization analysis data into your prototyping environment.

The SynaptiCAD product suite includes the following products: TestBencher Pro, VeriLogger Extreme, VeriLogger Pro, BugHunter Pro, DataSheet Pro, WaveFormer Pro, WaveFormer Lite, Timing Diagrammer Pro, GigaWave Viewer, Vhdl2Verilog, and Verilog2Vhdl.

What's up:
Updates: The official website does not provide any information about the changes in this version.


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Make your video / song / viral product with Reddit for $ 5

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What are the good examples of roadmaps for a product manager?

I am a Product Manager in the Product Management Department. I want to design a roadmap indicating the stages of product development.

Invalid document error di.xml for the product form modifier

I'm trying to customize the product creation form with the aid of the modifier class

it's my di.xml


and that's my modifier class

        $this->role = $loginUserRole;
        $this->arrayManager = $arrayManager;
        $this->locator = $locator;
        $this->helper = $helper;

    public function modifyData(array $data)
        return $data;

    public function modifyMeta(array $meta)
        $disabled = true;
        $role = $this->role;
        $roleList = $this->helper->getGeneralConfig('listrole');

        if(in_array($role('role_id'), $roleList)){
            $disabled = false;

         $switcherConfig = (
            'disabled' => $disabled,

        $path = $this->arrayManager->findPath('addonsys_product_approval', $meta, null, 'children');
        $meta = $this->arrayManager->merge($path . static::META_CONFIG_PATH, $meta, $switcherConfig);

        return $meta;

the problem is when I try to do bin / magento he throws a mistake

Invalid Document
Element 'item': The type definition is abstract.
Line: 7

Element 'item', attribute 'name': The XPath '@name' of a field of key identity-constraint 'itemName' evaluates to a node-set with more than one member.
Line: 45

Element 'item': Not all fields of key identity-constraint 'itemName' evaluate to a node.
Line: 45

Element 'item', attribute 'name': The XPath '@name' of a field of key identity-constraint 'itemName' evaluates to a node-set with more than one member.
Line: 46

Element 'item': Not all fields of key identity-constraint 'itemName' evaluate to a node.
Line: 46

the problem only exists when I use magento mode developer, and this code actually works in the system, help please, how to solve this problem

woocommerce – How to track product price changes?

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Abstract algebra – Vakil's Exercise 1.3.K (b): natural ring structure of a tensor product

This problem is based on the foundations of Vakil's algebraic geometry (Exercise 1.3.K. (b)):

Problem: Yes $ varphi: A to B $ and $ psi: B to C $ are two morphisms of the rings, show that $ B otimes_A C $ has a natural structure of a ring.

In his notes, Vakil even gives us the multiplication: $$ (b_1 otimes c_1) (b_2 otimes c_2): = (b_1 b_2) otimes (c_1 c_2). $$

Now, I do not understand why we need cards in the first place. I know it $ B $ and $ C $ can get a $ A $-module structure via $ varphi $ resp. $ psi $, so the notion $ B otimes_A C $ logic. However, why can not we just take arbitrary rings $ B $ and $ C $. While I was trying to go through all the axioms of the ring with the above multiplication, it seems to me that every axiom is always correct.

Could you let me know what I'm missing here? Thank you!

Determine the product for which the Enable RMA option is set to NO.

I set one of my products "Enable RMA" to "No". I do not remember which one. How can I find it?
I thought about exporting the product and then finding the column for the Enable RMA attribute. But it seems that "Enable RMA" is exported. I do not see it anywhere in the Magento User Guide. – Rich schema and extract for a website having only one review (non-user) of each product?

It seems that the most relevant structured data type of analysis is the critical examination. Indeed, it is not a combined score of evaluations submitted by many users who would use the user evaluation scheme. It also meets Google's criteria for a review:

  • Authoritative human author [s] must create, organize, or compile content for critics.
  • Include only critical reviews directly produced by your site, not third-party reviews or critical reviews.
  • Do not add structured data to reviews of products or services for adults.

However, Google will probably not use the structured data from the Game Reviews website. Google says it will only show rich snippets of criticism for:

  • Local businesses
  • Movies
  • Books

As long as Google does not display the number of stars of game reviews, the implementation of structured data on your site does not present any benefit. If you had to implement it, you should expect Google to start showing the star rating for game reviews in the future.