Event-Manager | MERN stack Auth and CRUD web application | Runtime Evironment library
kandi X-RAY | Event-Manager Summary
kandi X-RAY | Event-Manager Summary
MERN stack Auth and CRUD web application
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QUESTION
I want to dispatch an event from my controller in cakephp2.10. Therefore I need to register the event listener for the controller. It is simple to achieve this when the event is emitted from my model, but I cannot figure it out for my controller. From the book: https://book.cakephp.org/2/en/core-libraries/events.html#global-event-manager:
...ANSWER
Answered 2021-Feb-04 at 14:13You should never manually instantiate a controller (except for maybe in unit tests), if you feel the need to do that, then this indicates a possible flaw in your application's architecture.
Unlike models, there can be only one controller involved per request (if there were more than one, this would again indicate an architectural flaw), so ideally there should be no reason for you to attach your listener to a specific controller instance.
I would go out on a limb and say that also if you have multiple controllers that dispatch that event, but you only want to listen to one of them, then that's again a possible architectural flaw, which could most likely be resolved by scoping the event properly in that specific controller, for example using a specific controller name like Controller.Test.myEvent
. In your listener you could also check the subject whether it's a specific instance, but if the listener needs to know that much about the subject, then that's probably not good.
All that being said, yes, use the global event manager instead, it's the same principal as in the linked answer, for example:
QUESTION
Using php 7.2
...ANSWER
Answered 2020-Dec-17 at 14:30This seems to be a problem with the virtual box filesystem. I created an issue to composer and hopefully more insight will be gained.
https://github.com/composer/package-versions-deprecated/issues/21
QUESTION
We have the below contents on composer.json
with dependencies and scripts. This comes from a legacy project where the vendors
directory was pushed to GitHub. We're trying to remove that vendors
directory from the repository to make its creation a part of the build process.
ANSWER
Answered 2020-Sep-29 at 19:06I copied your composer.json
to my local environment and ran composer update
and had the same results. The problem is, that the class Sensio\Bundle\DistributionBundle\Composer\ScriptHandler
does not exist with your config. So I executed composer require sensio/distribution-bundle
, but then I got a version conflict:
QUESTION
The last composer update completely broken my project based on Symfony5:
php.CRITICAL: Uncaught Error: Argument 1 passed to Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\DoctrineParamConverter::__construct() must be an instance of Doctrine\Common\Persistence\ManagerRegistry or null, instance of Doctrine\Bundle\DoctrineBundle\Registry given
I've already updated all the references of Doctrine\Bundle\DoctrineBundle\Registry to Doctrine\Common\Persistence\ManagerRegistry a long time ago, according to the Symfony documentation
Any help would be appreciated
List of installed packages:
...ANSWER
Answered 2020-Aug-25 at 10:58- Update Php Version on your system to 7.4
- Run composer upgrade
QUESTION
I'm having a really hard time to figure out what's happening when there is nothing being used to trigger re-render the component.
Events.js
Component renders twice when I remove the useState()
from the Event.js
it renders once, but I need to keep it. when I use useEffect()
inside Event components, renders fourth time.
I just kept the dummy data to give you to fill the emptiness and tried to remove React.memo
, nothing happens. the problem is with the Event.js
component I believe. I'm also using the Context API, but forth time rendering is too much.
useEffect inside App.js
is getting some value from the localStorage, I can't access that direct 'cause the value is undefined by default
sandbox code here: https://codesandbox.io/s/event-manager-reactjs-nbz8z?file=/src/Pages/Events/Events.js
The Events.js
file is located on /Pages/Events/Events.js
example code is below
Event.js ( child component )
...ANSWER
Answered 2020-Jun-08 at 09:39Well actually this is caused by your usage of React.memo
, its second parameter is called areEqual
, and you pass in () => false
, so you are basically telling React that the props are always changing. Therefore whenever App rerenders, Events rerenders too.
QUESTION
**meta_value**:a:1:{i:0;s:105:"http://localhost/wordpress/wp-content/uploads/event-manager-uploads/event_banner/2020/07/diabetic_1-3.jpg";}
...ANSWER
Answered 2020-Jul-07 at 13:13So not sure how you're saving your meta_key in the first place? It looks like what you have is a serialized array with just a single, numerically indexed entry. So what you probably want to do is change wherever that's saved to just store the URL?
That said, you could access that meta value like this:
QUESTION
React memo isn't capturing the props neither the prevProps
nor the nextProps
and the component render well. The react docs say
- If your function component renders the same result given the same props, you can wrap it in a call to React.memo for a performance boost.
my problem is to stop twice rendering using react memo, but memo seems to be not working and the component renders twice with the same props.
The component renders when the Create New Event
is clicked on /events
Child Component located at
/components/Event/CreateEvent/CreateEvent.js
the parent component is located at
/Pages/Event/Event.js
line number999
' from where the child component is being triggered
Here is the Code:
...ANSWER
Answered 2020-Jun-09 at 06:48In your example, you don't have an additional render for React.memo
to work.
According to your render logic, there aren't any nextProps
, you unmount the component with conditional rendering (creating
).
QUESTION
I can no longer see my page builder option for both visual composer and siteOrigin page builder after an update to wordPress 4.9.6... No option to switch to page builder, and no option to select backend editor/ frontend editor
I get this errors
...ANSWER
Answered 2018-Jul-14 at 20:49Thanks guys, the problem was due to a plugin short code generator... It seems after the WordPress update there were some codes that were not compatible with the plugin and hence the error. i uninstalled the plugin and the page builder was good.
Thanks again for your contributions.
QUESTION
When I do a composer update on my symfony 3.4.30 installation, it completes without problem, but when I try running composer install on the created lock file, it throws an error.
This happens both on my CentOS server, and my MacOS laptop. I have the latest composer installed:
Anyone know what is going on?
I have tried completely removing the vendor directory, and the composer.lock file with no success. I have also updated my composer version, and also cleared my composer cache:
...ANSWER
Answered 2019-Aug-13 at 20:36Your way to fix it is to drop the line
QUESTION
I would like to change all the occurrences of 'events' from event-manager to 'conversations' using a filter.
For example 'My events' should be 'My conversations', 'Events' should be 'Conversation'.
...ANSWER
Answered 2019-Jun-17 at 13:27In event manager plugin, the language files are located in this path "events-manager\includes\langs".
https://codex.wordpress.org/Plugin_API/Filter_Reference/gettext
I used some of the texts which used in event manager plugin.
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