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What is the role of $hidden in laravel's Eloquent ORM?

What is $hidden used for? It would be best to give an example to illustrate

黄舟 2017-05-16 16:48:27

javascript - What is the use of closures in practical development?

After watching the explanation of the function of closures in the video, I still don’t understand. For example, the code in the screenshot can be implemented by adding a passline parameter to the cmp function. There is no need to use closures. Who can give a better example to illustrate the role of ...

PHPz 2017-05-16 13:35:00

Regarding whether the hasOne object in Laravel ORM can target arrays

The target of using hasOne is db object (eloquent). Can the target object be an array? Or there is a package that can complete it. The following converts the data into json to illustrate. For example: { "id": 1, "name": "test", "size_id": 10, "size":...

PHP中文网 2017-05-16 16:56:17

javascript - There are too many timers in js script, how to resolve conflicts?

For business needs, multiple scheduled tasks are written in the js script, as follows: {code...} As shown in the above code (the two timers at the top of the code have no special meaning, they are posted to illustrate this script There are many timers), a lot of timers are used in js scripts, so the...

迷茫 2017-06-06 09:53:37

Vue3 does not react to internal updates of class fields like Vue2 does

I noticed that in Vue2 you can bind an element to a property of a class and the element will update when such property changes from somewhere outside the Vue world, but this doesn't seem to be possible in Vue3 . I've created two simple examples here to illustrate what I mean: Vue2: https://codesandb...

P粉274161593 2024-01-29 12:45:06

How to dynamically add properties based on conditions in React components?

Is there a way to add a property to a React component only if a specific condition is met? I need to add required and readOnly attributes to a form element based on a condition in a post-render Ajax call, but I don't know how to fix this since readOnly="false" is not the same as omitting t...

P粉665427988 2023-08-20 14:54:00

Change flickity style: use JS for style modification

I'm running into a Flickity issue with accessing styles using js, specifically, styles for indicator points. I want the points to be colored based on the colors in an array (in my project this should be a dynamic array, but is currently static to simplify the test case). My function works on element...

P粉006847750 2023-08-16 13:09:34

How to center the last row of items in a grid using Tailwind CSS?

I'm having trouble trying to use Tailwind (using React) to align my final project in a grid layout. Basically I want 3 items and if there are no 3 items left i.e. 2 or 1, I want them to be centered. I tried some kind of colspan but it didn't work as expected. To better illustrate what I'm trying to ...

P粉311563823 2023-08-28 20:06:09

Ways to fix issue 2003 (HY000): Unable to connect to MySQL server 'db_mysql:3306' (111)

I recently tried to containerize my FastAPIPython server (also for replication/doubling purposes). Before, I had just a MySQL server in a Docker container and everything was fine, but when I also made my web server a service, it couldn't connect to the MySQL server, so now the application doesn't wo...

P粉178132828 2023-09-05 11:18:47

Experiment with sorting after query limit

So this is my first question here, please forgive me if something is wrong. I'm trying to make a sort query based on constraints. So there is a Customers table with 90 records. I want to first perform a query limited to 3 records, and then sort the results of this query by a column called ContactNam...

P粉237125700 2023-09-05 14:46:42

CSS Grid: Create new row when child content overflows column width

I have a two column layout based on CSS grid. When the content of the second column exceeds 1fr I want to create a new row. As it currently stands, the content simply overflows the column. One requirement of this layout is that the items in the right menu column are in one row. I achieve this with: ...

P粉212114661 2023-09-05 15:18:28

PHP full text search functionality using AND, OR and NOT operators

Newbie question: I'm trying to implement a full text search on a search string using php and eloquent. $searchstring="+(victimsuspect)+crime-covid";$searchresult=RssItem::whereRaw("MATCH(description)AGAINST('$searchstring'INBOOLEANMODE)")->ge

P粉076987386 2023-09-05 15:06:32

Shortest way to convert all PHP types to string

I'm writing a general system that I hope can one day be applied to fields like medicine (i.e. it's "scientific"). I think the best way is to represent all the data in php with strings (true will be "true", false will be "false" and so on). The reason for this is that in...

P粉369196603 2023-09-05 15:34:44

How to get average of DATETIME column in MySQL while grouping by other columns

I'm creating and populating a MySQL table using the following query: SETtime_zone='+00:00';CREATETABLEtimestamp_n_datetime(idINT,timeDATETIME,avg_timeDATETIME);INSERTINTOtimestamp_n_datetime(id,time,avg_time)VALUES("1","2023-01-0310:

P粉460377540 2023-09-05 11:46:21

Multi-device (mobile phone) synchronization - React Native

I'm trying to create a Lightshow that will launch on all users' mobile devices at the same time (can have up to 2000-3000 users). All users will use the Internet (Wi-Fi or mobile data). In our FE we use Apollo for subscriptions and it works like a charm. But the problem is, user A can get subscribed...

P粉151466081 2023-09-05 11:58:38

Spades, Diamonds, Hearts, Clubs => styles do not change font color in Chrome for Android

In Google Chrome on Windows, the card suit symbols (spades, hearts, diamonds, clubs) are colored correctly using the "style" attribute. Unfortunately, the same page displayed in Google Chrome on Android does not display the colors I defined but uses the default black and red. (See the atta...

P粉896751037 2023-09-05 15:25:13

How to hide mui TextField label?

I'm developing a Nextjs app and I have a dashboard navigation bar built with mui that contains a notification that opens the notification box, which is built with regular HTML and CSS. dashboard-navbar.js: importNotificationBoxfrom"./notification-box/notification-box";//...exportconstDashb...

P粉239164234 2023-09-05 15:41:00

Custom Bootstrap 5 carousel on mobile (multiple items, but not in one row)

I'm having trouble trying to customize the carousel layout on mobile devices. I want it to show every item of the carousel on mobile instead of just one, but after trying with some CSS and JS, especially using displayfloat or max-witdh I'm just starting to think this isn't possible, Or I don't know ...

P粉763662390 2023-09-05 11:53:56