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encryption - In PHP/ Mysql, how to access encrypted data in database after changing the salt value stored in a config file?

Currently I'm encrypting user sensitive data before storing it in the database: // salt retrieved from config file ... previous salt value? Many thanks for your support, Durian....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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366 views

1 answer

node.js - Sockets in react app using backend in nodejs over nginx not working

I am implementing sockets.io in nodejs & react based application. Its working fine on local server, but when I deploy ... it gives error of 500 handshake, and sometime error 400 ,...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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256 views

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python - Clarification about matplotlib's base number/offset/scaling factor

I am trying to solve some randomly generated PDEs in python. I have some graph outputs from some simulation code, and ... to formulate a search for the answer to this question....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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464 views

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ubuntu - CEPH HEALTH_WARN Degraded data redundancy: pgs undersized after reweighting

We have a CEPH setup with 3 servers and 15 OSDs. Two weeks ago We got "2 OSDs nearly full" warning. We have reweighted the ... 00000 1.00000 4 hdd 1.00000 osd.4 up 1.00000 1.0000...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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352 views

1 answer

hazelcast - adding a mancenter cluster config fails once a global serializer is configured

I am trying to add a cluster config with a global-serializer in the hazelcast mancenter. So here is my configuration ... management-center:4.2020.12 any ideas why this doesnt work...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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351 views

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reactjs - Adding tags to Gatsby Contentful blog

I'm trying to add tags on blog posts, and I struggle to find a resource, which explain how to implement them. The end goal is to ... .node.id }, }) }) } Where do I go from here?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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192 views

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r - Read files from Multiple subfolders as a list

I have a Main directory with several sub folders consisting of raster files. I would like to read all the files in the sub ... = F) dat.files <- lapply(dir.files, list.files)...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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513 views

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php - xampp 8 phpmyadmin Forbidden

I Have Installed Latest xampp (8) with The New PHP 8 Version, Everything is OK but the phpmyadmin cannot be ... Successfull for The CMD But Not the Browser. Appreciating Your Help...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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710 views

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python - Watson Assistant giving error when passing webhook from external server [No Answers anywhere]

I'm Trying to get Watson Assistant to return a JSON response from an external API (Ubuntu 18.04 server) running on ... accepting my JSON. Is there something I am missing? Thanks...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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236 views

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javascript - Trying to implement an extra HTML tag and updating all relevent code

I have an open source eCommerce website called opencart where i am trying to implement an extra HTML element of type file which ... trivial to me but i just cant manage to do it....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Define the complexity of minimum sub sum code

The code works and does exactly what I would expect it to, but it's a bit difficult for me to dictate the complexity of ... Does that mean the code is still in the complexity O(n)?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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163 views

1 answer

How transform CSV in python?

I have this csv : id1, var1, value1_id1, id1,var2, value2_id1, id2,var1, value1_id2, id2,var2, value2_id2, How ... , var2, id1, value1_id1, value2_id1, id2, value1_id2, value2_id2,...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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454 views

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javascript - Buggy edges in three.js when using gltf

Does anybody know how to get rid of this bug? It doesn't occur on stuff created in three.js code (as for example the tree ... , function ( error ) { console.error( error ); } );...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Django IntegrityError: null value in column "interestreceiver_id" of relation "HomeFeed_interest" violates not-null constraint

Django : Why is my submit interest form not submitted because of an integrity error issue? Did I write my view or template wrongly? How ... _2021-01-05.pdf, 13, null, null, 1). '''...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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369 views

1 answer

vue.js - Why are my Nuxt/vue pages getting blocked by robot.txt?

This is not a question about best practice within SEO but a question about how to setup config.js and script sections ... was set to '*' where it still blocked some pages....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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397 views

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What's the benefit of using Django ManyToManyField instead of just get by related_name?

I was just wondering "Why" use Django ManyToManyField. I can still retrieve data from related_name....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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373 views

1 answer

dns - Setting up a domain SSL certificate

I have a domain name mydomain.xyz and I have a vps hosting where I start the server-side (node.js). To use google ... on the website where I bought my VPS. Can anyone help please?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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482 views

1 answer

web scraping - How to get the right url after redirection (the one given by the browser) using python

I'm working on a project whose aim is to retrieve all the information from a news article (media website), for this ... EREC-182-[actualite] thank you in advance for your reply :)...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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964 views

1 answer

linkedin - Can not open Logrocket Dashboard when AdGuard DNS used

I setup my WIFI network router with AdGuard DNS to filter out Ads. Works great I even can open Linked in from Russia ... app.logrocket.com How can I access the app.logrocket.com?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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452 views

1 answer

javascript - WebSocket: How to automatically reconnect after it dies

var ws = new WebSocket('ws://localhost:8080'); ws.onopen = function () { ws.send(JSON.stringify({ .... some ... to the socket server (and resend the initial message to the server)...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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237 views

1 answer

Is it possible in Pandas to drop just empty cells?

is it possible to drop empty cells (i mean just the cells, not the row or column). I've got a dataframe where i ... this one: Frame with empty cells Frame how it should look like...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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253 views

1 answer

java - Not all of my JButtons are showing up after I add a dozen of them. What am I doing wrong?

I want to add 52 buttons in a JPanel. All with ActionListeners. When I reach a certain amount (13) and run the program, not ... when there is more than 13 of them, and I need 52....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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314 views

1 answer

c - Issue in interfacing E-Ink display with STM8S103F3P6 microcontroller

I am using Waveshare 1.54" ePaper Module. Using SPI peripheral: CPU freq is 16Mhz SPI Prescaler DIV by 8 MSB FIRST ... //Only TX is Enable SPI_NSS_SOFT, 0x00); SPI_Cmd(ENABLE); }...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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325 views

1 answer

sql - How to access three tables from database

I only know how to access data from 2 different tables but not with 3. How do i do it? Thanks in advance rs.Open(" ... ) .Items(i).SubItems.Add(rs("salary").Value) End With Loop...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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323 views

1 answer

json - 'fetch' from router - how to have server response be handled as an error in .then() .catch()?

Or what is the best practice to handle this? I have the following code as part of a Button in one of my React Native ... ': 'Match request was not accepted successfully'}) } } })...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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235 views

1 answer

Problem while creating a keras model in R

I was searching for a solution on this great forum, but I didn't find it yet, so I am now writing what's my ... still don't know when do I have the problems. Thanks in advance...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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239 views

1 answer

c - Why are these constructs using pre and post-increment undefined behavior?

#include <stdio.h> int main(void) { int i = 0; i = i++ + ++i; printf("%d ", i); // 3 i = 1; i = (i++); printf("%d ", i ... %d ", x[0], x[1]); // shouldn't this print 0 8? or 5 0? }...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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418 views

1 answer

dart - What's the benefit of factory constructor in MapEntry class?

Original code for MapEntry class MapEntry<K, V> { final K key; final V value; const factory MapEntry(K key, V value) = ... ; final V value; const MapEntry(this.key, this.value); }...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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