回滚特定文件：rake db:migrate:down VERSION=20170726090222要查找所有迁移的版本，可以使用以下命令：rake db:migrate:statusdatabase: iotboss_08_09_b1 Status Migration ID Migration Name-----------------------...
ErvinCheung
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经历了一个夏天今天我们一起来揭晓答案是凤鸣九洲，一飞冲天还是御剑夺魁，沐浴金雨下午16:00终局一战2019英雄联盟职业联赛夏季总决赛
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清除坏的<none>:<none>镜像docker rmi $(docker images -f "dangling=true" -q)
ErvinCheung
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宿主机已经运行mysql在3306端口，这个时候 映射容器中的 mysql '3306:3306' 就会和外部冲突，这个时候 映射 3308 到容器mysql的3306CONTAINER ID IMAGE COMMAND ...
ErvinCheung
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Doinb等这一刻5年了。5年前初登赛场，一手维克托名扬天下，可英雄池的属性让他饱受争议，到现在还有人提起。4年前Doinb所在的QG2比3不敌LGD，没人想到这居然是Doinb离全球总决赛最...
撸猫铁头娃
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在刚刚结束的LPL夏季赛半决赛当中，RNG以3-1的比分击败TES成功挺进决赛。凭借春季赛拿到的10积分以及进入夏季赛决赛至少能够获得的90积分，RNG以保底100分的积分优势，成为继FPX之...
撸猫铁头娃
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https://cr.console.aliyun.com/cn-hangzhou/instances/mirrors
ErvinCheung
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一、技术栈基于 es6、vue、vuex、vue-router 、vue-cli 、axios 和 element-ui，(请求数据使用Mock.js进行模拟)Vue 生态圈Vue Router 是 vue 官方的路由。它能快速的帮助你构建一个单页面或者多页面...
ErvinCheung
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SELECT pg_terminate_backend(pid) FROM pg_stat_activity WHERE datname='数据库名' AND pid<>pg_backend_pid();
ErvinCheung
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Note - The full source code for this tutorial can be found here: TutorialEdge/go-jwt-tutorialJWTs, or JSON Web Tokens as they are more formally known, are a compact, URL-safe means of representing claims to be transferred between two part...
ErvinCheung
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JavaScript Frontend frameworks have undoubtedly helped to push the boundaries of what was previously possible in the context of a browser. Ever more complex applications have come out built on top of the likes of React, Angular and VueJS to...
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So, I recently partook in Hacktoberfest which is an event that helps to support thousands of different Open Source projects. Usually, I tend to get caught up in other projects or can't find the time or make up a hundred other excuses for ...
ErvinCheung
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ObjectivesBy the end of this tutorial, you will be able to...Encrypt text using the AES - Advanced Encryption Standard in GoWe'll then look at writing this encrypted message to a fileFinally we'll look at how we can decrypt this message usi...
ErvinCheung
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The whole area of Face Recognition is something I love reading about. Implementing a facial recognition system yourself makes you sound like you are Tony Stark and you can use them for a variety of different projects such as an automatic lo...
ErvinCheung
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Welcome fellow coders! In this tutorial, we are going to be taking a look at how you can implement your own OAuth2 Server and client using the go-oauth2/oauth2 package.This is without a doubt one of the most requested topics from commento...
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Update - The code in this tutorial has been updated to work with the breaking changes in Go v1.12Welcome All! With Go v1.11 having just been released with an experimental port to WebAssembly included, I thought it would be awesome to see h...
ErvinCheung
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Welcome fellow coders! In this tutorial, we are going to be looking at how you can utilize the Protocol Buffers data format within your Go-based applications. We'll be covering what the data format is, and why it is an improvement over more...
ErvinCheung
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Note - This tutorial was written using Go version 1.9 and googollee/go-socket.ioWebsockets are something I find interesting in the sense that they provide us with an alternative option to communication between applications as opposed to t...
ErvinCheung
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ADVANCEDWorking with Websockets and Socket.IO in Go - TutorialGo Protocol Buffer TutorialGo WebAssembly Tutorial - Building a Calculator TutorialGo Oauth2 TutorialGo Face Recognition Tutorial - Part 1Go Encryption and Decryption using AES -...
ErvinCheung
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Go is an absolutely incredible language to build a wide variety of different applications in. From command-line interfaces to distributed microsystems and even cloud platforms, its' simplicity and concurrency baked in makes it a powerful ch...
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今天订单出了一个库存超卖的问题，查找了很久，才定位到原因，之前用rails也很少用到事务和锁，这里介绍一下它们。为什么要使用事务事务是指并发控制的单位，是用户定义的一...
MIHU
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user = User.find(1) user.as_json # => { "id" => 1, "name" => "Konata Izumi", "age" => 16, # "created_at" => "2006/08/01", "awesome" => true} ActiveRecord::Base.include_root_in_json = true user.as_json # => { "user" => { "id" => 1,...
ErvinCheung
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For general application configuration that doesn't need to be stored in a database table, I like to create a config.yml file within the config directory. [rails get yml configurations] For your example, it might look like this:defaults:...
cnelson
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开发者最好的朋友即时执行任何命令简洁而优雅Guake拥有您需要的功能直接访问任何控制台在您的上下文切换Guake是Gnome的一个自上而下的终端， 您可以通过一键击键即时...
ErvinCheung
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https://github.com/commitizen/cz-cli安装commitizensudo npm install -g commitizen全局安装首选适配器cz-conventional-changelogsudo npm install -g cz-conventional-changelog.czrc在home目录中创建一个文件，并path引用首选...
ErvinCheung
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Consolas字体下载链接: https://pan.baidu.com/s/1fRIeQ8Pnbxa9TEgvuyiVqA 提取码: det6安装将上面下载的字体包解压，并按如下操作：sudo mkdir -p /usr/share/fonts/consolas sudo cp YaHei.Consolas.1.12.ttf /usr/share/fon...
ErvinCheung
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使用 create database 命令复制数据库到新的数据库。CREATE DATABASE targetdb WITH TEMPLATE sourcedb; 举例：CREATE DATABASE database1 WITH TEMPLATE database2;
ErvinCheung
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