How to improve the efficiency of php excel export

How to improve the efficiency of phpexcel export (note: the cvs format can be ignored, this export has the operation of operating cells) What I think of now is: Optimizing SQL now has an interface for data details, and now it is to get the ID array of the data to loop through this The project detail...

欧阳克 2017-06-14 10:49:59 0  4  1274

Problem that session cookies cannot be saved after application deployment

I created a front-end application using React and then deployed it on Netlify. The frontend application interacts with an express backend application that I created and deployed to Render. Any interaction between frontend and backend is protected by authentication using passportjs. The backend appli...

P粉312631645 2023-08-29 09:37:44 0  1  514

SQL query to select only rows with maximum value

I have a document table (here is a simplified version): idrevcontent11...21...12...13... How do I select one row per id and only the largest rev? Based on the above data, the result should contain two rows: [1,3,...] and [2,1,..]. I'm using MySQL. Currently I'm using a check in a while loop to detec...

P粉752479467 2023-08-22 10:03:28 0  2  519

SQL query to select only rows with maximum column value

I have a document table (simplified version here): idrevcontent11...21...12...13... How do I select one row per id and only the largest rev? Based on the above data, the result should contain two rows: [1,3,...] and [2,1,..]. I'm using MySQL. Currently I'm using a check in a while loop to detect and...

P粉662614213 2023-08-21 14:17:15 0  2  419

Material UI Datagrid link column stops onRowClicked

I'm using MaterialUIDatagrid to display some data. One of the columns displays a link that opens the URL in another tab. On the clicked row I want to navigate to another page, but when the link is clicked I don't want to navigate to another page. I could simply disable the link's click behavior on t...

P粉208469050 2023-09-16 19:17:00 0  1  572

How to retrieve rows in column with highest value using SQL [duplicate]

I have a table in a document (here is a simplified version): id to content 11...21...12...13... How to select one row for each id and only select the largest rev? Based on the above data, the result should contain two rows: [1,3,...] and [2,1,..]. I'm using MySQL. Currently I'm using a check in a wh...

P粉211273535 2023-09-20 13:44:50 0  2  712

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

How to use Firebase Authentication with multiple login methods and role-based authentication?

I am creating a react.js application with nodejs as backend and I want to use these authentication methods to login using email/password, login using google and login using phone, now I want to keep the uniqueness of the user while signing the user's name for Any of these, I will also get other deta...

P粉574695215 2023-09-05 12:18:10 0  1  676