Silverstripe CMS BlogPost - DropdownField or SingleSelectField populated from enum field

I'm trying to add a title color option to the BlogPost summary view. I added an enum field to the database and I want to add a dropdown/select field under the BlogPost header. I'm not sure which field type to use and how to set it up correctly. classBlogPostExtensionextendsDataExtension{privatestati...

P粉573943755 2023-09-16 16:02:00 0  1  865

iOS: Null pointer reference when encoding non-null enum type?

The structure is roughly like this. Class A contains an array of class B. Class B contains a variable of enumeration type C. When A is initially initialized, 10 B elements are initialized as shown in the figure. Except In addition, the B array in class A has not been modified. However, when encoding...

淡淡烟草味 2017-05-31 10:36:30 0  1  904

c++ - How to convert vector coordinates to string in the format of "(x=, y=)"

Code: string str(double dX, double dY)// Convert vector coordinates to string in the format of "(x=, y=)" {code...} Error message: The expression must contain an integer or an unspecified range enumeration type

过去多啦不再A梦 2017-06-05 11:11:01 0  2  1304

Linux's next classic C language interview question

If you use the GCC compiler to execute the following program under Linux, what is the output? {Code...} I don’t understand very well. What’s the special syntax for enum type data in C language? Original question source: Several classic interview questions in C language under Linux

扔个三星炸死你 2017-06-26 10:59:04 0  1  1238

Laravel search via pure (unsupported) enumeration

I'm trying to perform a search in the database via a pure enum field: enumEnum1{caseCase1;}Model::query()->where('enum1',Enum1::Case1)->first() and it doesn't work, causing Error ErrorObjectofclassEnum1Couldnotbeconversiontostring. When I search by supported enum it works: enumEnum2:int{ca

P粉773659687 2024-02-03 20:19:05 0  1  454

Please ask two questions to improve the efficiency of using vim.

1. How to search for multiple keywords at the same time. For example, I want to highlight all aa, bbbb, ccccc in the document. 2. Here is an example of an enumeration {code...} and how to quickly add the following comments {code... .} For question 2, based on your answers and my own modifications, t...

给我你的怀抱 2017-05-16 16:41:13 0  3  799

javascript - vue uses v-for to implement the drop-down box of Are You Hungry?

{Code...} If you want to get the index in the current loop, "1, 2, 3···" instead of the "item.index" string, the incoming command="item.index" will not work, and the display effect will be The following command instructions here are hungry? By default, if you use an enu...

迷茫 2017-05-19 10:35:51 0  2  606

Java enum variables cannot be defined repeatedly in cases?

I need to assign a value to a variable based on the content of the string, but the variable type is different. My current error is {code...} idea, repeated definition. But this is an enumeration and will not be repeated. How do I accomplish my goal?

黄舟 2017-05-17 10:09:15 0  1  937

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 0  1  854

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 0  1  741

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 0  1  633

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 0  1  604

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 0  1  1020

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 0  1  521

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 0  1  718

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 0  1  770

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 0  1  697

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 0  1  607