{"id":3427,"date":"2022-12-07T10:33:06","date_gmt":"2022-12-07T10:33:06","guid":{"rendered":"http:\/\/the-codest.localhost\/blog\/learn-more-about-ruby-on-rails-with-pub-sub\/"},"modified":"2026-03-09T13:04:35","modified_gmt":"2026-03-09T13:04:35","slug":"oppida-rohkem-ruby-on-railsi-kohta-koos-pub-subiga","status":"publish","type":"post","link":"https:\/\/thecodest.co\/et\/blog\/learn-more-about-ruby-on-rails-with-pub-sub\/","title":{"rendered":"Lisateave Ruby on Rails ja Pub\/Sub kohta"},"content":{"rendered":"<p><strong><a href=\"https:\/\/thecodest.co\/et\/case-studies\/providing-a-team-of-ruby-developers-for-a-fintech-company\/\">Ruby<\/a> aadressil <a href=\"https:\/\/thecodest.co\/et\/blog\/ways-to-increase-your-rails-performance\/\">R\u00f6\u00f6pad<\/a><\/strong> (R\u00f6\u00f6pad, <a href=\"https:\/\/thecodest.co\/et\/blog\/hire-ror-developer\/\">RoR<\/a>) on tuntud <a href=\"https:\/\/thecodest.co\/et\/blog\/find-your-ideal-stack-for-web-development\/\">veeb<\/a> rakendusraamistik, mis on kirjutatud <strong>Ruby<\/strong> programmeerimiskeel. <strong>Pub\/Sub<\/strong> on tarkvara disainimustrite l\u00fchinimetus, mida nimetatakse <b>Publish-subscribe<\/b>. Ma selgitan, kuidas Railsi tarkvarakomponentide vahelist suhtlust saaks k\u00e4sitleda Pub\/Subi abil.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Mis on Pub\/sub?<\/h2>\n\n\n\n<p><strong>Pub\/sub<\/strong> on tarkvara disainimudel, mis pakub teenuste vahelist suhtlust. Teenus<br>kaasneb \u00fcks kahest rollist: avaldaja (kes toodab) v\u00f5i vastuv\u00f5tja (kes tarbib). Mis on<br>toodetakse tarbitavaks s\u00fcndmuseks v\u00f5i s\u00f5numiks v\u00f5i teatiseks. In the<br>k\u00e4esoleva artikli kontekstis kasutatakse neid m\u00f5isteid vaheldumisi \u00fche ja sama asja t\u00e4histamiseks.<br>Teenus, mis toodab, ei tea, kes tarbib. Teenus, mis tarbib, ei tea<br>teate s\u00f5numi p\u00e4ritolu. Nad v\u00f5ivad j\u00e4\u00e4da \u00fcksteisele tundmatuks. See erineb<br>s\u00f5numij\u00e4rjekorrad, kus s\u00f5numi saatev komponent teab sageli selle sihtkohta.<br>- selline s\u00f5numite saatmise stiil v\u00f5imaldab saata s\u00f5numeid k\u00f5ikjale. See mehhanism on p\u00f5hiline<br>aadressilt <strong>Pub\/sub<\/strong> ja see t\u00e4hendab, et nad on lahutatud.<\/p>\n\n\n\n<p>Oma \u00fchiste huvide v\u00e4ljendamiseks peavad nad jagama \u00fchist arusaama. Seet\u00f5ttu,<br>m\u00f5lemas rollis on vaikimisi mehhanismi pulk, kus s\u00f5numi tootja ja<br>s\u00f5numi tarbija vastab. Seda mehhanismi nimetatakse subjektiks, tellimuseks v\u00f5i teemaks. See on<br>vastutab s\u00f5numite liigitamise eest subjektidele, see on sisuliselt olematu s\u00f5numifilter.<br>Teemad toimivad saatejaamana. V\u00e4ljaandja toodab s\u00f5numi teemale,<br>tellijad saavad koheselt teate teemast. Kuna lahtiseotud<br>teenuste puhul on k\u00f5ige t\u00f5husam viis s\u00f5numite vahetamiseks nende as\u00fcnkroonne k\u00e4itlemine.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Rails ilma Pub\/Subita<\/h2>\n\n\n\n<p>Vaikimisi ei ole Railsi tarkvaradisainimustrite puhul s\u00f5numite edastamiseks komponentide vahel mingeid \u00fcleliigseid kulusid. Arendajad kasutavad standardseid <strong>objektorienteeritud programmeerimine<\/strong> (<a href=\"https:\/\/thecodest.co\/et\/dictionary\/object-oriented-programming-oop\/\">OOP<\/a>) paradigma: funktsioonidele parameetrite edastamine, v\u00e4\u00e4rtuste kohta klasside k\u00fcsimine.<\/p>\n\n\n\n<p>Kui taotlus on \u00fcsna lihtne, v\u00f5ib sellest piisata. Kui rakendus kasvab, n\u00e4iteks on vaja teha m\u00f5ningaid operatsioone as\u00fcnkroonselt, siis on <a href=\"https:\/\/thecodest.co\/et\/dictionary\/why-do-projects-fail\/\">projekt<\/a> vajab abstraktsiooni, mis lahendab, et <a href=\"https:\/\/thecodest.co\/et\/blog\/app-data-collection-security-risks-value-and-types-explored\/\">andmed<\/a> t\u00f6\u00f6protsess. Selle asemel, et leiutada ratast uuesti, saavad arendajad rakendada <strong>Pub\/sub<\/strong> et t\u00e4ita see abstraktsiooni puudus.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Pub\/Sub koos Rails'iga plussid<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>V\u00e4ltige aktiivse kirje tagasikutseid.<\/li>\n\n\n\n<li>Lisades s\u00fcsteemi as\u00fcnkroonse paralleelt\u00f6\u00f6tluse, paraneb j\u00f5udlus, t\u00f6\u00f6kindlus ja <a href=\"https:\/\/thecodest.co\/et\/blog\/difference-between-elasticity-and-scalability-in-cloud-computing\/\">skaleeritavus<\/a> on parandatud.<\/li>\n\n\n\n<li>S\u00f5numeid saab edastada as\u00fcnkroonselt s\u00fcsteemi eri osadele.<\/li>\n\n\n\n<li>V\u00f5imaldab s\u00f5numeid edastada as\u00fcnkroonselt s\u00fcsteemi erinevatele osadele.<\/li>\n\n\n\n<li>Decoupling - funktsionaalsuse lisamine v\u00f5i muutmine ei m\u00f5juta midagi, sest Pub\/Sub<br>v\u00f5imaldab teil muuta, kuidas k\u00f5ik omavahel suhtleb.<\/li>\n\n\n\n<li>S\u00f5numite tarbija ei pea enam perioodiliselt kontrollima, kas uuendusi v\u00f5i uusi<br>teave. See v\u00e4hendab edastamise viivitust, mis v\u00f5ib olla eriti problemaatiline s\u00fcsteemides, kus<br>mis ei salli viivitusi.<\/li>\n\n\n\n<li>Ei ole mingit piirangut, kui palju tellijaid s\u00fcsteem suudab k\u00e4sitleda, sest see v\u00f5ib muutuda,<br>uuendada, paljuneda v\u00f5i kaduda igal ajal.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Pub\/Sub koos Railsiga miinused<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pub\/sub-s\u00fcsteemide peamine puudus on see, et nad lahutavad kirjastaja ja<br>tellija.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Rails Pub\/Sub tutvustada<\/h2>\n\n\n\n<p>N\u00e4iteid allikas Rails kirjutati kasutades raamatukogu<br><a href=\"https:\/\/github.com\/stevo\/pubsub_on_rails\" rel=\"nofollow\">Pub\/Sub on Rails<\/a> (Ruby nomenklatuuris nimetatakse raamatukogu gemiks): Rohkem \u00fcksikasju leiate gemi readme'ist. Rakendus koosneb moodulitest:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Domeen,<\/li>\n\n\n\n<li>\u00dcritus,<\/li>\n\n\n\n<li>S\u00fcndmuse k\u00e4sitseja,<\/li>\n\n\n\n<li>\u00dcrituse kirjastaja,<\/li>\n\n\n\n<li>Tellimus.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Domeen<\/h3>\n\n\n\n<p>Kirjeldab \u00e4riloogikat, et anda kontekst Pub\/Subile ja seega teha puhas <a href=\"https:\/\/thecodest.co\/et\/dictionary\/what-is-code-refactoring\/\">kood<\/a>.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"ruby\" class=\"language-ruby\"> moodul Teated\n   laiendada PubSub::Domain\n end<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"ruby\" class=\"language-ruby\"> moodul Aruanded\n   laiendada PubSub::Domain\n end\n\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">S\u00fcndmus<\/h3>\n\n\n\n<p>See on klass, mis kirjeldab juhtunut. Deklareerige klassi nimi v\u00f5imalikult isekirjeldavaks koos sellega, mis juhtus, n\u00e4iteks: t\u00fchistatud, muudetud, loodud, h\u00e4vitatud, saadetud, uuendatud. S\u00fcndmuse nimed v\u00f5ivad v\u00e4lja n\u00e4ha j\u00e4rgmiselt: ProfitAndLossStatementCreatedEvent, mis t\u00e4hendab, et finantsaruanne loodi.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"ruby\" class=\"language-ruby\"> class Reports::ProfitAndLossStatementCreatedEvent &lt; PubSub::DomainEvent\n   atribuut :profit_and_loss_statement_id, Types::Strict::Integer\n end<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">S\u00fcndmuse kirjastaja<\/h3>\n\n\n\n<p>Klass, mis on v\u00f5imeline s\u00fcndmusi v\u00e4lja saatma. N\u00e4ide n\u00e4itab teenuse aruande loomist. Kui aruanne on edukalt loodud, saadetakse v\u00e4lja selle aruande loomise s\u00fcndmus.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"ruby\" class=\"language-ruby\">klass Reports::ProfitAndLossStatementService\n   include PubSub::Emit\n    def execute\n     emit(:report_profit_and_loss_statement_created, profit_and_loss_statement_id: id) if result.ok?\n   end\n end<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">S\u00fcndmuse k\u00e4sitseja<\/h3>\n\n\n\n<p>See klass tuleks k\u00e4ivitada vastusena s\u00fcndmuse k\u00e4sitlemisele.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"ruby\" class=\"language-ruby\">moodul Teated\n class ReportsProfitAndLossStatementCreatedHandler &lt; PubSub::DomainEventHandler\n   def call\n     ReportMailer.profit_and_loss_statement(profit_and_loss_statement).deliver_now\n   end\n\n   private\n\n   def profit_and_loss_statement\n     ProfitAndLossStatement.find(event_data.profit_and_loss_statement_id)\n   end\n end\nend<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Tellimus<\/h3>\n\n\n\n<p>S\u00fcndmused on seotud nende k\u00e4itlejatega tellimise kaudu.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"yaml\" class=\"language-yaml\">teatised:\n Aruanded__kasum_ja_kaotuse_aruanne_loodud: async<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">N\u00e4ide kasutusjuhtumitest:<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\"Follow\" funktsioon sotsiaalv\u00f5rgustikes,<\/li>\n\n\n\n<li>Asjade internet,<\/li>\n\n\n\n<li>Postitus,<\/li>\n\n\n\n<li>Teade genereeritud failide kohta.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Sarnased mustrid<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><b>EventBus<\/b> - komponendid v\u00f5ivad saata s\u00fcndmusi EventBus'ile, teadmata, kes neid vastu v\u00f5tab v\u00f5i kui palju vastajaid on <a href=\"https:\/\/thecodest.co\/et\/blog\/react-development-all-you-have-to-know\/\">reageeri<\/a>,<\/li>\n\n\n\n<li><b>Vaatleja<\/b> - subjekt s\u00e4ilitab nimekirja s\u00f5ltuvatest isikutest, mida nimetatakse vaatlejateks, ja teavitab neid, kui nende seisund muutub,<\/li>\n\n\n\n<li><b>Koondamine<\/b> - k\u00fcsitlemisel k\u00fcsivad kliendid perioodiliselt s\u00fcsteemilt, kas on uusi s\u00fcndmusi v\u00f5i andmeid.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">Kalliskivid<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\n<p><a href=\"https:\/\/github.com\/edisonywh\/rocketman\" rel=\"nofollow\">https:\/\/github.com\/edisonywh\/rocketman<\/a><\/p>\n<\/li>\n\n\n\n<li>\n<p><a href=\"https:\/\/github.com\/krisleech\/wisper\" rel=\"nofollow\">https:\/\/github.com\/krisleech\/wisper<\/a><\/p>\n<\/li>\n\n\n\n<li>\n<p><a href=\"https:\/\/github.com\/stevo\/pubsub_on_rails\" rel=\"nofollow\">https:\/\/github.com\/stevo\/pubsub<em>aadressil<\/em>r\u00f6\u00f6pad<\/a><\/p>\n<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Kokkuv\u00f5te<\/h2>\n\n\n\n<p>Pub\/sub ei ole Ruby in Railsis levinud l\u00e4henemisviis. Nagu artiklis tutvustatud, v\u00f5ib see muster tuua projektile palju kasu - see v\u00f5ib muuta koodi puhtaks, lahutada teenuseid ja muuta need kergesti skaleeritavaks.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/thecodest.co\/contact\"><img decoding=\"async\" src=\"\/app\/uploads\/2024\/05\/interested_in_cooperation_.png\" alt=\"koost\u00f6\u00f6b\u00e4nner\"\/><\/a><\/figure>","protected":false},"excerpt":{"rendered":"<p>Pub\/Sub v\u00f5ib tuua projektile palju kasu - see v\u00f5ib muuta koodi puhtaks, lahutada teenuseid ja muuta need kergesti skaleeritavaks. Loe Pub\/Subi kohta l\u00e4hemalt j\u00e4rgmisest artiklist ja t\u00f5sta oma projekti tasemele!<\/p>","protected":false},"author":2,"featured_media":3428,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[8],"tags":[12],"class_list":["post-3427","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-software-development","tag-it"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Learn More about Ruby on Rails with Pub\/Sub - The Codest<\/title>\n<meta name=\"description\" content=\"Explore the Pub\/Sub design pattern in Ruby on Rails and see how it enables event-driven communication and scalable system architecture.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/thecodest.co\/et\/blogi\/oppida-rohkem-ruby-on-railsi-kohta-koos-pub-subiga\/\" \/>\n<meta property=\"og:locale\" content=\"et_EE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Learn More about Ruby on Rails with Pub\/Sub\" \/>\n<meta property=\"og:description\" content=\"Explore the Pub\/Sub design pattern in Ruby on Rails and see how it enables event-driven communication and scalable system architecture.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/thecodest.co\/et\/blogi\/oppida-rohkem-ruby-on-railsi-kohta-koos-pub-subiga\/\" \/>\n<meta property=\"og:site_name\" content=\"The Codest\" \/>\n<meta property=\"article:published_time\" content=\"2022-12-07T10:33:06+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-09T13:04:35+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/thecodest.co\/app\/uploads\/2024\/05\/ruby_on_rails_with_pubsub.png\" \/>\n\t<meta property=\"og:image:width\" content=\"960\" \/>\n\t<meta property=\"og:image:height\" content=\"540\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"thecodest\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"thecodest\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/thecodest.co\\\/blog\\\/learn-more-about-ruby-on-rails-with-pub-sub\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/thecodest.co\\\/blog\\\/learn-more-about-ruby-on-rails-with-pub-sub\\\/\"},\"author\":{\"name\":\"thecodest\",\"@id\":\"https:\\\/\\\/thecodest.co\\\/#\\\/schema\\\/person\\\/7e3fe41dfa4f4e41a7baad4c6e0d4f76\"},\"headline\":\"Learn More about Ruby on Rails with Pub\\\/Sub\",\"datePublished\":\"2022-12-07T10:33:06+00:00\",\"dateModified\":\"2026-03-09T13:04:35+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/thecodest.co\\\/blog\\\/learn-more-about-ruby-on-rails-with-pub-sub\\\/\"},\"wordCount\":778,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/thecodest.co\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/thecodest.co\\\/blog\\\/learn-more-about-ruby-on-rails-with-pub-sub\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/thecodest.co\\\/app\\\/uploads\\\/2024\\\/05\\\/ruby_on_rails_with_pubsub.png\",\"keywords\":[\"IT\"],\"articleSection\":[\"Software Development\"],\"inLanguage\":\"et\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/thecodest.co\\\/blog\\\/learn-more-about-ruby-on-rails-with-pub-sub\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/thecodest.co\\\/blog\\\/learn-more-about-ruby-on-rails-with-pub-sub\\\/\",\"url\":\"https:\\\/\\\/thecodest.co\\\/blog\\\/learn-more-about-ruby-on-rails-with-pub-sub\\\/\",\"name\":\"Learn More about Ruby on Rails with Pub\\\/Sub - 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