Development of mobile applications based on block chains

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How do you substitute Magento Catalog Block Category View?

I want to replace the protected function `_prepareLayout()`

So I used preference

``````
``````
``````class View extends MagentoCatalogBlockProductView
{
protected \$_urlInterface;

public function __construct(
MagentoFrameworkViewElementTemplateContext \$context,
MagentoCatalogModelLayerResolver \$layerResolver,
MagentoFrameworkRegistry \$registry,
MagentoCatalogHelperCategory \$categoryHelper,
MagentoFrameworkUrlInterface \$urlInterface,
array \$data = ()
) {
\$this->_urlInterface = \$urlInterface;
parent::__construct(\$context, \$layerResolver, \$registry, \$categoryHelper, \$data);
}

/**
* @return \$this
*/
protected function _prepareLayout()
{
die(var_dump(\$this));
parent::_prepareLayout();

\$this->getLayout()->createBlock(MagentoCatalogBlockBreadcrumbs::class);

\$category = \$this->getCurrentCategory();
if (\$category) {
\$title = \$category->getMetaTitle();
if (\$title) {
\$this->pageConfig->getTitle()->set(\$title);
}
\$description = \$category->getMetaDescription();
if (\$description) {
\$this->pageConfig->setDescription(\$description);
}
\$keywords = \$category->getMetaKeywords();
if (\$keywords) {
\$this->pageConfig->setKeywords(\$keywords);
}
if (\$this->_categoryHelper->canUseCanonicalTag()) {
\$this->pageConfig->addRemotePageAsset(
// \$category->getUrl(),
\$this->_urlInterface->getCurrentUrl(),
'canonical',
('attributes' => ('rel' => 'canonical'))
);
}

\$pageMainTitle = \$this->getLayout()->getBlock('page.main.title');
if (\$pageMainTitle) {
\$pageMainTitle->setPageTitle(\$this->getCurrentCategory()->getName());
}
}

return \$this;
}
``````

but I get the error 500

Unrecoverable PHP Error: Uncaught TypeError: The argument 1 passed to Magento Catalog Block Product View :: __ construct () must be an instance of Magento Catalog Block Product Context, Magento Framework instance View Element . Template Background

8 – Seach Page Divided in block and view

I've already created a search view such as / search giving the form and results accurately, but the Views user interface is disabled on my server.
So, I want to divide this page into

1] A block containing a search form

2] Get the results of the view and must display on the same page.

Can you share ideas on how to proceed?

8 – Strange Behavior: extra CSS classes are NOT merged with form tag classes & # 39; Block Search & # 39; but with those of BLOCK wrapping the form tag

I live such a "strange" behavior with `Drupal (v8.7.10)` trying to add CSS classes to the default `Search Form` form tag using `MYTHEME_form_FROM_ID_alter` crochet, classes are DO NOT merged with the form tag classes as expected but with those of the BLOCK wrap the form tag itself.

it's my code:

``````function MYTHEME_form_search_block_form_alter(&\$form,DrupalCoreFormFormStateInterface \$form_state, \$form_id) {
\$form('#attributes')('class') = 'form-inline';
}
``````

and this is the output made in question

``````

Search

``````

Thoughts ?

magento2 – Magento 2 programmatically add a ViewModel to a block when it is created

I've encountered a problem trying to create a block in a controller because I needed the block created in the controller to also create an object of type ViewModel.

What I'm trying to achieve but I want to do it via a code in the controller rather than using the layout file: –

``````

BubAdvancedReviewHelperBlockHelper

``````

My code in the controller is as follows: –

``````_view->getLayout();

/** @var BubAdvancedReviewBlockExpertReviewExpertReviews \$block */
\$block = \$layout->createBlock(BubAdvancedReviewBlockExpertReviewExpertReviews::class,null,('advanced-review-helper' => 'BubAdvancedReviewHelperBlockHelper'));
\$block->setTemplate('Bub_AdvancedReview::expert_reviews.phtml');
\$layout->createBlock()->setData();

return \$this->getResponse()->setBody(\$block->toHtml());
}
}
``````

Does anyone know if this can be done?

Thanks in advance

matrices – Properties of the blocks in the matrix of block A if the pair of matrices (E, A) is regular

I'm working on a problem in the book "Differential-Algebraic Equations: Analysis and Digital Solutions" by Kunkel, Mehrmann. This is Exercise 3 on page 53 concerning matrix pairs $$(E, A)$$ and the properties of a specific block of matrix matrix A:

Given the pair of dice
$$(E, A) = left ( begin {bmatrix} I_r & 0 \ 0 & 0 end {bmatrix}, begin {bmatrix} A_ {11} & A_ {21} \ A_ {12} & A {22} end {bmatrix } right)$$

or $$E, A in C ^ {m times n}$$ and $$I_r$$ is the dimension identity matrix $$r < min (m, n)$$ you have to prove that the given pair of matrices is regular and index on if and only if $$A_ {22}$$ is a square block and not singular.

I have some ideas, but I do not know how to proceed from there. For the $$Rightarrow$$ direction I know, that regularity of $$(E, A)$$ it follows:

• $$E, A$$ must be square matrices
• $$(E, A)$$ is equivalent to the canonical form $$left ( begin {bmatrix} I & 0 \ 0 & N end {bmatrix}, begin {bmatrix} J & 0 \ 0 & I end {bmatrix} right)$$ , that is, there are non-singular matrices $$P, Q$$ such as $$PEQ = begin {bmatrix} I & 0 \ 0 & N end {bmatrix}$$ and $$PAQ = begin {bmatrix} J & 0 \ 0 & I end {bmatrix}$$ or $$J$$ is a normal shaped matrix jordan and $$N$$ is nilpotent in Jordan normal form
• $$p (s) = det (sE-A)$$ is not $$0$$ for each $$s$$

Also, because the index of $$(E, A)$$ is $$nu = 1$$ that's it $$N ^ {0} neq 0, ; N ^ {1} = 0$$ the nilpotent block should be large $$1 times1$$ :
$$N = (0)$$
since $$N ^ 0 = (0) ^ 0 = 1$$ and $$N ^ 1 = (0)$$. But from there, I do not know how to continue. Thank you in advance.

How to know by JSONAPI if the block is activated / deactivated in the block layout (Drupal 8)?

I am able to get the contents of the block by the following jsonapi API: –

``````{{url}}/jsonapi/block_content/breaking_strip
``````

"break_strip" is my custom block. But that always gives me status = "true" even when blocking is disabled from the block layout. Is there a way to know which one is enabled or disabled?

8 – Disable the caching of a custom block for an anonymous user

I have a custom block, it displays in each page with dynamic data computes in each refresh, how can I disable the cache for this block for anonymous users?

I'm trying with:

``````public function build() {
return (
'#markup' => time(),
'#cache' => (
'max-age' => 0,
),
);
}
``````

It will not work.

Collision Detection – Do not block the camera with a blocking volume in Unreal Engine

I use Blocking Volumes to prevent players from falling off platforms in a third-person perspective game from UE4.

However, these blocking volumes block the camera, as it was a physical wall.

How can I easily add block the player without blocking the camera?

Ideally without coding / plans. If this is impossible, a simple plan would be preferable.

Camera at a normal distance from the player, when it is not restricted by a blocking volume

The camera is restricted by a blocking volume

How to block China bot or unusual connection?

Hello,

I am well connected China can connect the sites and make the use of bandwidth a lot,

I want to ask if there is a way to block China bot or a-no … | Read the rest of https://www.webhostingtalk.com/showthread.php?t=1787837&goto=newpost