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php - How to calculate total price of multiple items in cart in Laravel?

I have a carts table where column is----> "id", "user_id", "product_id", "quantity". See the image here is ther products table When a user add item into cart ... by the user. How to do that? Here is the cart model Here is the product model...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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typeerror - how can i prevent this error in my code" int() can't convert non-string with explicit base in python."?

there is two things i can't understand: 1-What does "nonstring - with excplicit base" means? 2 How to solve it? you can check the code and the error it appears ... its obvous im not a python guy but im trying to do smth from time to time....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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active directory - Powershell ForEach replace (Bulk change primary SMTP in AD)

I need switch the primary SMTP address in AD in bulk from users of an certain OU. The challenge; User1 smtp:[email protected] smtp:[email protected] SMTP: ... I explain myself good enough. Thank you in advance for any coming help ??...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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laravel - How to solve this error, The GET method is not supported for this route. Supported methods: POST

I'm having a problem with this? How to solve this error: The GET method is not supported for this route. Supported methods: POST. <form ... /{term_one}/edit | term-one.edit | [email protected] | web | Route File...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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374 views

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sql server - T-sql count number of times a week on rows with date interval

If you have table like this: Name Data type UserID INT StartDate DATETIME EndDate DATETIME...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Access to XMLHttpRequest from origin has been blocked by CORS policy. CORS issue with hosting React chat app

I'm having some issues deploying my web socket app online. I've used Heroku to host the server and Netlify for the client. I'm getting the below error when I try ... process.env.PORT || PORT, () => console.log("server is running online"));...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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excel - When I run my Macro to copy paste and remane a file I get "Out of Memory" vba error, what I'm doing wrong?

I have an excel file with a form, when the form is filled correctly then an OK button can be pressed. The button function is to create a file name, copy ... I simply do not have formulas. PC is recent, 16GB ram, office is updated. Thanks...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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PHP/Laravel: How to validate JWT token issued by external Authentication server by providing link to it's openid-configuration

I'm implementing OIDC authentication functionality with Existing common authentication server SPA for clients Resource server (My application API) A user goes to SPA ... there is no automation https://github.com/firebase/php-jwt#using-jwks...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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395 views

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jestjs - Using Jest to test node.js code, how do you test for the absence of a property

What matcher would I use in Jest to test for the absence of a property on an object. My MUT returns an object, say {userName: 'Joe'}. How do I ... should fail, because the password property is there (even though it's value is undefined)....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - React Big Calendar label - get year in week view

While on week view in React Big Calendar, the label in the toolbar shows the range of dates, for example "January 10 - 16". How can I get the year? Below is the modified ... .view.bind(null, 'agenda')}>Agenda</button> </div> </div> ); } }...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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php - Google App Engine using PHP7 header() does not redirect the page correctly

I tried to use the header() function to redirect after user authentication on GAE. And I tried to get some ideas on GAE documents but cannot seem to find anything about ... >Main Page</h2> </body> </html> And the problem showed like this :...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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uniapp 运行微信小程序字体图标错误。

正常运行H5页面是这样的运行微信小程序是这样的报错信息请问下这种情况怎么处理？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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g++ - How can you add threading support to CodeBlock's compiler?

I'm on Ubuntu 20.04 and with g++, I can compile a code with pthreads in it using 'g++ -o file file.cpp -lpthread'. However, I can't do ... . How can I integrate the pthread support to CodeBlock's compiler, so that it supports pthreads?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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mongodb副本集两地架构高可用问题

我们现在有一套副本集的mongodb，是在两地的机房，由于资源有限， A地有1个primary和1个secondary， B地有2个secondary和1个arbiter，以前从来没考虑过两地分布似乎不管怎样都不算是高可用，因为必然有一边是少数节点现在B机房计划性搬迁，就面临这个问题，B地直接下电，A地2 ... 一个Arbiter2，然后remove掉B地的arbiter，这样B地下电是不是就完全没影响了另外想请问下两地部署的情况副本集有什么最佳结构吗？感谢 ...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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436 views

1 answer

vue axios 504 诡异断点

开发阶段我没有打断点或者 debugger 但是只要后端接口返回 504 就会自动启动调试请问这是怎么回事，我需要怎么解决...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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444 views

1 answer

关于浏览器关闭操作js代码执行情况？

点击x关闭浏览器，浏览器是否会等待js同步代码执行完成，然后再关闭？如果不等待同步代码执行完成那么浏览器是如何处理未执行完的代码？那么onbeforeunload事件岂不是没多大意义？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.4k views

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reactjs - AntDesign forms or React Hook Form

i was searching which are the differences and the advantages/disadvantages of using one or another but i couldn't find anything. Is it justified to add another library or simply use the AntDesign form validation? Thanks...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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703 views

1 answer

在iframe中点击input框，回到了iframe页面的最顶部，怎么阻止？

如题，请问各位大佬有解决方法或者知道原因吗，就是一个单纯的页面，点击input框聚焦的时候就返回到最顶部了。...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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605 views

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UWP-based WebRTC Client support

I want to develop a WebRTC service. Remote classroom One teacher and several students attend the class. Share each other's screen Voice chat, Share your webcam ... provides UWP SDK? I am very sorry that this is not a technical question....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vue能否动态绑定一个class同时满足两个条件？

...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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323 views

1 answer

java如何实现文件流byte[]转码为UTF-8格式的文件流byte[]?

刚刚学习java文件流的输入输出，请教各位大神，已知输入文件流byte[]的编码，实现将其转码为UTF-8编码并输出为文件流[]. public static byte[] filebyteToUTF8(byte[] inputFilebyte){ }...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.6k views

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PostgreSQL use wrong delimiter

I'm trying to add data from a .txt file to an empty table in postgreSQL database with pgAdmin. The .txt file uses '|' as delimiter. For example 321|hello/hi| ... : line 100: "321|"hello" SQL state: 22P04 How to fix this error ? thanks...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.4k views

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vue初学者的几个疑问

之前使用 vue init wepack project-name 建立了一个cli2的脚手架，src目录里没有pages 写了几个功能界面都是在components文件夹中以组件的形式存在伴随着项目的变大，产生了几个疑问 1.登录注册浏览等等的界面功能都是以VUE组件的存在，如何才能修改成page的方式存在？ 2.每次新增一个组件， ... 假如就按照目前cli2组件的方式，将登陆注册浏览....全部写组件后是否符合规范，项目完成后打包上传到服务器上，会不会有什么问题？...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

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如何js是如何实现检测消息回话的，看不太懂啊？

// 接受服务器消息 function getServerMsg() { if (!exitflag) { $.ajax({ url : "../hf/chat/get", type : "post", data : { sessionId : sessionId }, ... .insertLeftText(body, common .getFormatDateByLong(Math.round(msgnode.time), "hh:mm:ss")); } } }...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.6k views

1 answer

javascript - Custom React Native Picker Select Component automatically selects before pressing done

Whenever I select a item from my react native picker select component it automatically selects the value before hitting done. As soon as your finger lifts of the ... MainButton name={"Submit"} onPress={submitPress} /> </Gradient> ); };...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.5k views

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为什么 PHP8 将包含 DDL 语句的事务改为异常抛出？

在 PHP 8.0 以前的版本，包含 DDL 语句的事务只是会触发隐式提交（应该算是 MySQL 的功能，并不是 PHP 的特性），事务无法回滚，并不会抛异常而8.0版本 commit 时会直接抛异常 There is no active transaction ... ->exec($sql); $conn->commit(); } catch (Exception $e) { echo $e->getMessage(); $conn->rollBack(); }...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.4k views

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java中有没有不需要porto文件反序列化字节流的插件啊？

在做app 逆向返回的是protobuf 序列化的内容，不想去app 中找规则proto内容了有插件就好了，直接出结果数据，二进制打印都是乱码...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.5k views

1 answer

wxss里可不可以使用data里的值？

page.wxss @font-face{ src: url({{dlflie}}) ... } page.js Page({ data: { dlflie: 'xxxxxxx.woff' },... }) wxss中能不能直接使用js中的data？...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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