I refresh the PHP page directly and can delete the numeric fields in the MYSQL database, but cannot delete the letter or URL fields?

I directly refresh the PHP page and can delete the numeric fields in the MYSQL database, but I cannot delete the letter or URL fields.

我就是我 2018-05-14 11:49:58 0  1  2187

Workaround: How to resolve Unable to delete or update parent row: Foreign key constraint violated?

I want to delete users based on phone number. So I made a custom query to delete that specific user. But an error occurred that the foreign key could not be deleted or updated. Below is my user entity. Below is my custom query trying to delete a user. @Modifying@Query("DELETEfromUseruwhereu.pho...

P粉458913655 2024-03-25 18:47:47 0  1  626

I need to create an object using an object id from a MySQL database

I'm developing an inventory management system and I'm working on the final part of allowing users to update orders. This update requires items to be added or removed from the order. I'm working on adding the part now. I've tested the MySQL query that works in Workbench: INSERTINTOorder_items(item_qu...

P粉066224086 2024-03-28 17:41:00 0  1  378

How to remove query string parameters in JavaScript?

Is there a better way to remove parameters from a URL string's query string than standard JavaScript using regular expressions? This is what I've come up with so far, and it seems to work in my tests, but I don't like reinventing query string parsing! functionRemoveParameterFromUrl(url,parameter){if...

P粉239164234 2023-08-20 18:46:10 0  2  514

javascript - After adding or deleting, the detected data is not sorted normally. How to solve it?

Recently, I have encountered a lot of problems while learning PHP. The information I checked online is incomplete or I can't understand it. I have to ask you to help me solve these problems. Thank you! Question: After adding or deleting, the queried data is not sorted properly and is all messed up. ...

曾经蜡笔没有小新 2017-05-16 12:58:26 0  2  539

How to solve the problem of not being able to update the "Date Column": How to correctly upload a CSV file when updating a MySQL database table

The main problem in my code is that I cannot update the "date" from the csv file into the mysql database table using php. The line of code $date=mysqli_real_escape_string($connect, $data[1]); is the main problem here. I'm looking for any alternative query for this particular line of code. ...

P粉529581199 2023-08-28 13:46:51 0  1  556

How to handle Uncaught Error: PHP/Composer class not found?

I'm starting a project with oop as a beginner and I'm trying to use some classes that I think will be recognized by vscode and composer because when I click on their namespace it directs me to the correct class, but when When I run the code in the browser I get a fatal error telling me that my class...

P粉304704653 2023-09-04 13:46:14 0  1  492

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  792

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  709

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  597

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  558

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  988

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  498

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  689

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  751

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  672

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  588

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  650