投稿時間:2023-05-17 21:16:55 RSSフィード2023-05-17 21:00 分まとめ(21件)

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TECH	Techable（テッカブル）	ChatGPTを社内チャットで使用できる「GPTコネクト」。URL内容の要約機能を搭載	https://techable.jp/archives/206631	chatgpt	2023-05-17 11:00:19
python	Pythonタグが付けられた新着投稿 - Qiita	TOPIXcore30銘柄のクラスタリング分析	https://qiita.com/ysx727/items/3945722b089e30084296	topixcore	2023-05-17 20:18:00
js	JavaScriptタグが付けられた新着投稿 - Qiita	キャメルケース→スネークケース変換にhumpsを使う	https://qiita.com/shunsukekaneko72106/items/76b23adc01b519555552	humps	2023-05-17 20:43:13
Ruby	Railsタグが付けられた新着投稿 - Qiita	キャメルケース→スネークケース変換にhumpsを使う	https://qiita.com/shunsukekaneko72106/items/76b23adc01b519555552	humps	2023-05-17 20:43:13
技術ブログ	Developers.IO	Cloudflare Area1 を導入して組織のEメールセキュリティを強化する 〜インライン方式編〜	https://dev.classmethod.jp/articles/cloudflare-area1-email-security/	cloudflare	2023-05-17 11:13:35
海外TECH	MakeUseOf	Spacebar Not Working on Your Windows PC? Here are 7 Possible Ways to Fix It	https://www.makeuseof.com/spacebar-not-working-windows-pc/	windows	2023-05-17 11:30:17
海外TECH	MakeUseOf	10 Beginner Tips for Using Numbers on Mac	https://www.makeuseof.com/beginner-tips-for-using-numbers-on-mac/	apple	2023-05-17 11:15:17
海外TECH	DEV Community	React Native + Redux Tool kit + AsyncStorage	https://dev.to/shreyvijayvargiya/react-native-redux-tool-kit-asyncstorage-210e	React Native Redux Tool kit AsyncStorage steps to add redux with a redux toolkit and async storage in a react native application Under the HoodThe story begins when I am developing a non custodial wallet app and web mobile app using react native Once the user creates an account or wallet he she can view all the wallets and addresses and check the balance After creating an account I want to store wallets and async storage as we will not be saving wallets in the database Tech StackAnd since I am using react native so redux will be the state management But redux now provides the latest or upgrade way to write actions and reducers called slice so I ll be using slice ReactReact NativeRedux ToolkitRedux PersistAsyncStorageRedux persists helps to persist the reducer states and for that it uses async storage in react native just like local storage in react Installing Packagesreactreact nativereact reduxredux persists react native async storage async storage Creating ReducerThe Redux toolkit now provides an easy way to write reducers and actions in the same method Below is the codeimport createSlice from reduxjs toolkit const initialState wallet walletAddress zxcvbnm balance walletAddress asdfghjkl balance walletAddress qwertyuiop balance activeWallet null const walletSlice createSlice name userWallet initialState reducers addWallet state action gt return state wallet action payload addActiveWallet state action gt return state activeWallet action payload export const addWallet addActiveWallet walletSlice actions export const reducer walletSlice reducer First we import createSliceDefine initial statesCreate a slice that contains name initialState and reducers as the keyDefine reducersExport actions and reducer from the slice methodIn just steps we have to define reducer and action altogether now need to create separate files for actions and reducers and define constants to connect them Creating StoreThis might seem a little tricky but it s also not that hard Import the required methods such as storage reducer stores and persisted methodsDefine persistent configurationDefine reducers or combine reducers if have multipleCreate persisted reducers using persist reducerCreate configure store by passing the root reducerExport store and persistor default at the endimport configureStore combineReducers from reduxjs toolkit import persistReducer persistStore from redux persist import reducer from slice import AsyncStorage from react native async storage async storage const persistConfig storage AsyncStorage key root const rootReducer combineReducers reducer export const persistedReducer persistReducer persistConfig rootReducer export const store configureStore reducer persistedReducer export const persistor persistStore store Again in steps our store and persistor are created Why we need them the store contains the entire app storage or data and the persistor basically tells the app how and where to persist the data Wrapping Redux to Root AppThe last step is to wrap redux to the root of the application along with persistor and store Wrap the ReduxPersistGate component to the root of the app componentsWrap ReduxProvider to the ReduxPersistGatePass persistor and store both PersistGate and ReduxProvider HOC respectively lt ReduxProvider store store gt lt PersistGate persistor persistor loading null gt lt NavigationContainer gt lt Stack Navigator initialRouteName HomeScreen gt lt Stack Screen name HomeScreenTab component HomeScreenTab options headerShown false gt lt Stack Navigator gt lt NavigationContainer gt lt PersistGate gt lt ReduxProvider gt Now in just steps our redux state management along with data storage async storage in our case is ready ConclusionInstall the required packagesCreate a slice that basically gives actions and reducersCreate a store persisted store using the redux toolkit and async storage Wrap Redux HOC to the root of the applicationHence in just steps we have redux toolkit the latest redux package installed in our react native app Keep developingShreyiHateReading	2023-05-17 11:31:27
海外TECH	DEV Community	Organize Business Logic in Your Ruby on Rails Application	https://dev.to/appsignal/organize-business-logic-in-your-ruby-on-rails-application-2pli	Organize Business Logic in Your Ruby on Rails ApplicationWith its strong emphasis on convention over configuration Ruby on Rails has counteracted many architectural considerations that caused bikeshedding when building web applications Still one area that has continuously piqued developers interest is how to handle business logic i e code that epitomizes what an app does Another way to phrase this question is Where do we put all the transactional code In this first part of a two part series we ll explore the most well known methods to organize your business logic in a Ruby on Rails application Let s get going Where to Put Transactional Code in RailsThere has been an ongoing debate about this topic in the Rails community with two extremes being advocated for and a couple of intermediate solutions On one hand there s the Golden Path which fully embraces MVC and is most prominently followed by Signals On the other hand there is Domain Driven Design DDD practiced by companies like Shopify and consultancies like Arkency These alternative approaches look pretty heavy handed The one you should choose depends very much on the following how many business domains your app spans DDD organizational structureapp architecture infrastructure microservices monolith ks cloud etc Let s take a closer look at some of the familiar alternatives and their pros and cons starting with fat models Fat ModelsFat models are models equipped with methods for processing their data possibly resulting in side effects and updating other records Consider this example simplified from Jorge Manrubia s post about rich models app models recordingclass Recording lt ApplicationRecord def copy to bucket parent nil copies create destination bucket bucket destination parent parent endendOne problem with fat models is that unless you are really disciplined in your code hygiene they can tend towards an assortment of code smells Feature Envy Models reaching out to other models either to query their internals a tell don t ask violation or to actually mutate them are a red flag To achieve low coupling objects should be confident just sending messages to other objects without querying them for the results Single Responsibility Principle Violations Models encoding interactions with other models may break the rule of single responsibility Keep rigorously asking yourself if the code you are adding to a class really belongs to the representation of the object it describes Logic in Callbacks An enduring controversy model callbacks are really a double edged sword A powerful tool they can simplify a lot of imperative code but can also hide complexity and lead to bugs that are hard to track down Here is a rule of thumb you can follow only use model callbacks to prepare or post process self Never trigger any jobs mailers or other services from them Tendency towards God Objects Rich models act as attractors for functionality Wait a few development cycles and I ll take any bet there ll be at least one model accumulating a few dozen methods Even splitting up such an object into model concerns merely covers up the mess ️ The points listed above can be summarized as a question of perspective To paraphrase Jim Gay is a look from within an individual model actually a good vantage point to design what your app does This has been picked up by a recent advance in Rails development namely service objects Rails Service ObjectsReally another title for the Command Pattern service objects encapsulate a unit of work or action that usually involves several steps of transactional logic Following the above example you would typically formulate something like this app services recording copier rbclass RecordingCopier def call source destination source copies create destination bucket destination endendThere are multiple problematic facets of this pattern but the focal point is This object does not encapsulate an instance state This is a sign that service objects do not actually describe any concept of our domain as Jason Swett has noticed Others like Avdi Grimm have observed that service objects run counter to the accepted practice of representing your domain objects with nouns and sends messages to these objects with verbs Classes named using the nominalization of a verb indicate that you have identified a message you want to send but can t come up with a receiver i e a matching role to send it to Objects with such fuzzy responsibilities can be the hardest to refactor First and foremost though I always found this concept a bit confusing because Rails already has a built in primitive for this jobs Jobs in RailsIn my consulting practice I ve observed that jobs are generally underused because their limits and requirements can seem daunting Let s first rewrite our example as a job app jobs copy record job rbclass CopyRecordJob lt ApplicationJob def perform source destination source copies create destination bucket destination endendAs you can see there s almost no syntactical difference between a job and a service object What then sets them apart A couple of things actually The code above isn t idempotent If you run it twice it will create two copies which is probably not what you intended Why is this important Because most backend job processors like Sidekiq don t make any guarantees that your jobs will run exactly once Jobs cannot return a value or indicate when they are done out of the box although you can do this manually via callbacks for example There are several workarounds for this like the magnificent Acidic Job gem or Sidekiq Pro Enterprise features around enhanced reliability and unique jobs Still if they occur bugs related to missing jobs and or job idempotency are hard to track down and even harder to fix Event SourcingEvent Sourcing ensures that all changes to application state are stored as a sequence of events Not just can we query these events we can also use the event log to reconstruct past states Source Event Sourcing by Martin FowlerEssentially event sourcing boils down to a publish subscribe algorithm with integrated versioning It s a high level Domain Driven Design concept that I will not discuss in detail here That s not to say it s not an interesting pattern You should use it if you have advanced reporting requirements for example If you want to learn more about it look at Rails Event Store Up Next DCI Data Context Interaction for RailsWe looked at a few of the most popular approaches to organize your business logic in a Ruby on Rails application fat models service objects jobs and briefly event sourcing In the next and final part of this series we will look at a convenient alternative called DCI Data Context Interaction DCI caters particularly well to the mental models we employ as engineers when we reason about application behavior Until then happy coding P S If you d like to read Ruby Magic posts as soon as they get off the press subscribe to our Ruby Magic newsletter and never miss a single post	2023-05-17 11:16:02
海外TECH	DEV Community	Symfony's magic: dependency injection	https://dev.to/jmau111/symfonys-magic-dependency-injection-3id8	Symfony x s magic dependency injectionInjecting dependencies is a fundamental principle that is recommended by various approaches including SOLID More pragmatically instead of doing this namespace App Services class MyService private myDependency public function construct this gt myDependency new MyDependency You can do that PHP namespace App Services class MyService public function construct private MyDependency myDependency However you may wonder why it s better and how it works behind the scene Injections and autowiringIn a standalone PHP project you would need to create some class that will have a single but quite essential responsibility read configs and instantiate objects Thanks to this class you would be able to use the shortcut we saw earlier In Symfony it s usually achieved with built in interfaces and containers e g ContainerBuilder Dependency Injection component which saves significant time and efforts It s not uncommon to read the term service container Symfony looks into the config folder to build its containers That s why you have to write in specific config files Symfony does lots of magic behind the scene providing features likes Autowiring By enabling Autowiring you are telling Symfony to inject dependencies in services automatically config services yamlservices defaults autowire true App resource src exclude src DependencyInjection Entity Tests Kernel php Source Symfony doc AutowiringIt prevents manual declarations and classes are automatically registered as services and configured to be autowired This ways you can load your dependencies automagically and use them in your controllers What s the impact on performances Behind the scene Symfony makes several optimizations we won t see here including caching and enhanced compilation That s why there is no performance penalty for using autowiring except on dev environments where the kernel will likely rebuild the container several times Ready to use containersApps powered by Symfony do not have to bother The containers contains pretty much all services required They only have to type hint them as arguments to start using them For example if you need logs namespace App Service use Psr Log LoggerInterface class MyClass public function construct private LoggerInterface logger Source Symfony docs service config into a serviceYou can even now specify whether a service should be registered according to the environment thanks to PHP attributes When env dev class MyClass Wrap upThere s no ultimate approach but dependency injection is far better for maintenance than manual coupling Symfony simplifies the process and runs major optimizations behind the scene so you practically get this feature for free in terms of performances while respecting standards	2023-05-17 11:08:41
海外TECH	Engadget	The Morning After: Samsung is reportedly sourcing OLED TV panels from rival LG	https://www.engadget.com/the-morning-after-samsung-is-reportedly-sourcing-oled-tv-panels-from-rival-lg-111559968.html?src=rss	The Morning After Samsung is reportedly sourcing OLED TV panels from rival LGSamsung and LG have a long running rivalry both Korean corporations both make TVs speakers freezers toothpaste maybe and the rest It s a frosty relationship with many trade shows revealing new TV products from both companies with nigh on identical specifications and sizes So it s a bit of a shock to hear from Reuters​ that Samsung has inked a deal with LG to buy its white OLED WOLED TV panels The plan according to the report is for LG Display to supply two million panels next year then three million and five million respectively in and These high end white OLED panels would be and inches so they re likely to be in Samsung s most premium TVs Samsung could do with the OLED help It has percent of the OLED TV market according to market research firm Omdia LG Display s sibling LG Electronics is out in front with a percent market share while Sony has percent For the record Sony also uses LG parts Mat SmithThe Morning After isn t just a newsletter it s also a daily podcast Get our daily audio briefings Monday through Friday by subscribing right here The biggest stories you might have missedAfter two years of updates the HomePod mini is actually pretty goodOverwatch s long awaited co op story missions will go live in AugustAfter layoffs and an AI scandal CNET s staff is unionizing Samsung updates its Galaxy Buds Pro with enhanced ambient sound controls DOJ charges Russian hacker linked to attacks against US law enforcement agenciesThe best microSD cards in The best Xbox games for Apple s Assistive Access simplifies iOS for people with cognitive disabilitiesIt also introduced new speech and vision accessibility features AppleWith Global Accessibility Awareness Day just days away Apple has detailed a raft of new iOS features for cognitive accessibility These include Live Speech Personal Voice and more ​​The biggest update is Assistive Access designed to support users with cognitive disabilities Essentially it provides a custom simplified experience for the phone FaceTime Messages Camera Photos and Music apps That includes a quot distinct interface with high contrast buttons and large text labels quot Continue reading A third former Apple employee has been charged with stealing self driving car tech Large quantities of Apple data was found at his home A federal court in the Northern District of California has unsealed charges against Weibao Wang a former Apple software engineer Wang started working at the company in developing hardware and software for autonomous systems ーtechnology that could conceivably wind up in self driving cars According to the indictment in November Wang accepted a job with a US subsidiary of a Chinese company that was developing self driving cars but waited more than four months to tell Apple he was quitting After Wang left Apple in April the company found he quot accessed large amounts of sensitive proprietary and confidential information quot in the lead up to his departure the Department of Justice said Continue reading YouTube s recommendations are leading kids to gun videos report saysResearchers posing as nine year olds were flooded with gun related content YouTube s recommendations are leading young kids to videos about school shootings and other gun related content According to the Tech Transparency Project TTP a nonprofit watchdog YouTube s recommendation algorithm is “pushing boys interested in video games to scenes of school shootings instructions on how to use and modify weapons and other gun centric content As the report notes several of the recommended videos appeared to violate YouTube s own policies Recommendations included videos of a young girl firing a gun and tutorials on converting handguns into “fully automatic weapons and other modifications Some of these videos were even monetized with ads Continue reading The best SSD for your PSAnd a step by step guide on how to upgrade EngadgetHas that Horizon Forbidden West DLC put you at your PS storage limits Need space for Final Fantasy XVI this summer We ve got you covered Here are the best SSD expansion options and how to install them Yep it s a little more complicated than a plug in USB drive Continue reading This article originally appeared on Engadget at	2023-05-17 11:15:59
金融	ニュース - 保険市場TIMES	セゾン自動車火災保険「SA・PO・PO」に「無料オンライン故障診断」追加	https://www.hokende.com/news/blog/entry/2023/05/17/201500	セゾン自動車火災保険「SA・PO・PO」に「無料オンライン故障診断」追加月日発表セゾン自動車火災保険株式会社は、サービスサイト「SA・PO・POサ・ポ・ポ」に、株式会社Seibiiが開発した「SA・PO・PO無料オンライン故障診断」を追加したと年月日に発表した。	2023-05-17 20:15:00
ニュース	BBC News - Home	Emilia Romagna Grand Prix: Imola race called off because of major flooding	https://www.bbc.co.uk/sport/formula1/65621373?at_medium=RSS&at_campaign=KARANGA	italian	2023-05-17 11:27:06
ニュース	BBC News - Home	Nicolas Sarkozy to wear tag after losing corruption appeal	https://www.bbc.co.uk/news/world-europe-65620064?at_medium=RSS&at_campaign=KARANGA	appealfrance	2023-05-17 11:07:49
ニュース	BBC News - Home	Labour would build on green belt to boost housing, says Starmer	https://www.bbc.co.uk/news/uk-politics-65619675?at_medium=RSS&at_campaign=KARANGA	starmer	2023-05-17 11:34:37
ニュース	BBC News - Home	Chris Mason: Ministers weigh up tricky options on immigration	https://www.bbc.co.uk/news/uk-politics-65619813?at_medium=RSS&at_campaign=KARANGA	challenging	2023-05-17 11:05:08
ニュース	BBC News - Home	Why a correctly fitted sports bra is essential	https://www.bbc.co.uk/sport/cricket/65535287?at_medium=RSS&at_campaign=KARANGA	health	2023-05-17 11:44:22
ニュース	BBC News - Home	Beyoncé Cardiff concert: Fans arrive from around the world	https://www.bbc.co.uk/news/uk-wales-65614416?at_medium=RSS&at_campaign=KARANGA	cardiff	2023-05-17 11:51:19
IT	週刊アスキー	『コードギアス 反逆のルルーシュ ロススト』がリリース1周年記念キャンペーンを開催！	https://weekly.ascii.jp/elem/000/004/137/4137097/	dmmgames	2023-05-17 20:30:00
IT	週刊アスキー	本日より『フォートナイト』にランク制が実装！マッチ時にオン／オフが切り替え可能	https://weekly.ascii.jp/elem/000/004/137/4137090/	epicgames	2023-05-17 20:25:00
海外TECH	reddit	[@F1] The decision has been taken not to proceed with the Grand Prix weekend in Imola	https://www.reddit.com/r/formula1/comments/13jyslj/f1_the_decision_has_been_taken_not_to_proceed/	F The decision has been taken not to proceed with the Grand Prix weekend in Imola submitted by u Jibbed to r formula link comments	2023-05-17 11:17:27