{"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":"uzziniet-vairak-par-ruby-on-rails-ar-pub-sub","status":"publish","type":"post","link":"https:\/\/thecodest.co\/lv\/blog\/learn-more-about-ruby-on-rails-with-pub-sub\/","title":{"rendered":"Uzzin\u0101t vair\u0101k par Ruby on Rails ar Pub\/Sub"},"content":{"rendered":"<p><strong><a href=\"https:\/\/thecodest.co\/lv\/case-studies\/providing-a-team-of-ruby-developers-for-a-fintech-company\/\">Rub\u012bns<\/a> vietn\u0113 <a href=\"https:\/\/thecodest.co\/lv\/blog\/ways-to-increase-your-rails-performance\/\">Sliedes<\/a><\/strong> (Sliedes, <a href=\"https:\/\/thecodest.co\/lv\/blog\/hire-ror-developer\/\">RoR<\/a>) ir labi zin\u0101ms <a href=\"https:\/\/thecodest.co\/lv\/blog\/find-your-ideal-stack-for-web-development\/\">t\u012bmek\u013ca vietne<\/a> lietojumprogrammu ietvarstrukt\u016bra, kas uzrakst\u012bta lietojumprogramm\u0101 <strong>Rub\u012bns<\/strong> programm\u0113\u0161anas valoda. <strong>Pub\/Sub<\/strong> ir \u012bss programmat\u016bras dizaina mode\u013cu nosaukums, ko sauc par <b>Public\u0113t-abon\u0113t<\/b>. Es paskaidro\u0161u, k\u0101 sazi\u0146u starp Rails programmat\u016bras komponent\u0113m var apstr\u0101d\u0101t ar Pub\/Sub.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Kas ir Pub\/sub?<\/h2>\n\n\n\n<p><strong>Pub\/sub<\/strong> ir programmat\u016bras projekt\u0113\u0161anas modelis, kas nodro\u0161ina sazi\u0146u starp pakalpojumiem. Pakalpojums<br>ietver vienu no div\u0101m lom\u0101m: izdev\u0113js (kas ra\u017eo) vai sa\u0146\u0113m\u0113js (kas pat\u0113r\u0113). Kas ir<br>tiek noteikts k\u0101 notikums, zi\u0146ojums vai pazi\u0146ojums. In<br>\u0160aj\u0101 rakst\u0101 tie tiek lietoti savstarp\u0113ji aizvietojami, lai apz\u012bm\u0113tu vienu un to pa\u0161u.<br>Pakalpojums, kas ra\u017eo, nezina, kas pat\u0113r\u0113. Pakalpojums, kas pat\u0113r\u0113, nezina.<br>uzzin\u0101t zi\u0146ojuma izcelsmi. Vi\u0146i var palikt viens otram nezin\u0101mi. Tas at\u0161\u0137iras no<br>zi\u0146ojumu rindas, kur komponents, kas s\u016bta zi\u0146ojumu, bie\u017ei vien zina t\u0101 galam\u0113r\u0137i.<br>- \u0161is zi\u0146apmai\u0146as stils \u013cauj s\u016bt\u012bt zi\u0146ojumus jebkur\u0101 viet\u0101. \u0160is meh\u0101nisms ir galvenais<br>no <strong>Pub\/sub<\/strong> un tas noz\u012bm\u0113, ka tie ir atsaist\u012bti.<\/p>\n\n\n\n<p>Lai paustu abpus\u0113jas intereses, vi\u0146iem ir j\u0101b\u016bt vienotai izpratnei. T\u0101p\u0113c,<br>ab\u0101m lom\u0101m ir netie\u0161s \"stick\" meh\u0101nisms, kur\u0101 zi\u0146ojuma sagatavot\u0101js un<br>satiekas zi\u0146ojuma pat\u0113r\u0113t\u0101js. \u0160o meh\u0101nismu sauc par tematu, abonementu vai tematu. Tas ir<br>atbild\u012bgs par zi\u0146ojumu kategoriz\u0113\u0161anu subjektiem, tas b\u016bt\u012bb\u0101 ir bezst\u0101vok\u013ca zi\u0146ojumu filtrs.<br>T\u0113mas darbojas k\u0101 apraides stacijas. Izdev\u0113js sagatavo zi\u0146u t\u0113mai,<br>abonenti nekav\u0113joties sa\u0146em zi\u0146u no t\u0113mas. Atdal\u012bt\u0101<br>pakalpojumiem, visefekt\u012bv\u0101kais veids, k\u0101 apmain\u012bties ar zi\u0146ojumiem, ir tos apstr\u0101d\u0101t asinhroni.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Sliedes bez Pub\/Sub<\/h2>\n\n\n\n<p>P\u0113c noklus\u0113juma nav Rails uzcenojumu programmat\u016bras dizaina paraugiem zi\u0146ojumu nodo\u0161anai starp komponent\u0113m. Izstr\u0101d\u0101t\u0101ji izmanto standarta <strong>objektorient\u0113ta programm\u0113\u0161ana<\/strong> (<a href=\"https:\/\/thecodest.co\/lv\/dictionary\/object-oriented-programming-oop\/\">OOP<\/a>) paradigma: parametru nodo\u0161ana funkcij\u0101m, pieprasot klases par v\u0113rt\u012bb\u0101m.<\/p>\n\n\n\n<p>Ja pieteikums ir diezgan vienk\u0101r\u0161s, ar to var pietikt. Ja lietojumprogramma aug, piem\u0113ram, da\u017eas oper\u0101cijas ir j\u0101veic asinhroni, tad <a href=\"https:\/\/thecodest.co\/lv\/dictionary\/why-do-projects-fail\/\">projekts<\/a> nepiecie\u0161ama abstrakcija, kas atrisina \u0161o <a href=\"https:\/\/thecodest.co\/lv\/blog\/app-data-collection-security-risks-value-and-types-explored\/\">dati<\/a> darba pl\u016bsma. T\u0101 viet\u0101, lai no jauna izgudrotu riteni, izstr\u0101d\u0101t\u0101ji var \u012bstenot <strong>Pub\/sub<\/strong> aizpild\u012bt \u0161o abstrakcijas tr\u016bkumu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Pub\/Sub plusi ar Rails<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Izvairieties no akt\u012bvo ierakstu atpaka\u013csaukumiem.<\/li>\n\n\n\n<li>Pievienojot sist\u0113mai asinhrono paral\u0113lo apstr\u0101di, tiek uzlabota veiktsp\u0113ja, uzticam\u012bba un uzticam\u012bba. <a href=\"https:\/\/thecodest.co\/lv\/blog\/difference-between-elasticity-and-scalability-in-cloud-computing\/\">m\u0113rogojam\u012bba<\/a> ir uzlabotas.<\/li>\n\n\n\n<li>Zi\u0146ojumus var p\u0101rraid\u012bt asinhroni uz da\u017e\u0101d\u0101m sist\u0113mas da\u013c\u0101m.<\/li>\n\n\n\n<li>\u013bauj asinhroni p\u0101rraid\u012bt zi\u0146ojumus uz da\u017e\u0101d\u0101m sist\u0113mas da\u013c\u0101m.<\/li>\n\n\n\n<li>Atdal\u012b\u0161ana - funkcionalit\u0101tes pievieno\u0161ana vai mai\u0146a neko neietekm\u0113s, jo Pub\/Sub<br>\u013cauj main\u012bt visu elementu mijiedarb\u012bbu.<\/li>\n\n\n\n<li>Zi\u0146u pat\u0113r\u0113t\u0101jam vairs neb\u016bs periodiski j\u0101p\u0101rbauda, vai nav pieejami atjaunin\u0101jumi vai jauni<br>inform\u0101cija. Tas samazina pieg\u0101des aizkav\u0113\u0161anos, kas var b\u016bt \u012bpa\u0161i problem\u0101tiska sist\u0113m\u0101s.<br>bez ieciet\u012bbas pret kav\u0113jumiem.<\/li>\n\n\n\n<li>Nav ierobe\u017eojuma, cik daudz abonentu sist\u0113ma var apkalpot, jo tas var main\u012bties,<br>jebkur\u0101 laik\u0101 atjaunin\u0101t, pavairoties vai pazust.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Pub\/Sub ar Rails tr\u016bkumi<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pub\/sub sist\u0113mu galvenais tr\u016bkums ir tas, ka taj\u0101s ir atdal\u012bts izdev\u0113ja un apak\u0161sist\u0113mas.<br>abonents.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Rails Pub\/Sub ieviest<\/h2>\n\n\n\n<p>Rails avota piem\u0113ri tika rakst\u012bts, izmantojot bibliot\u0113ku<br><a href=\"https:\/\/github.com\/stevo\/pubsub_on_rails\" rel=\"nofollow\">Pub\/Sub on Rails<\/a> (Ruby nomenklat\u016br\u0101 bibliot\u0113ku sauc par gem): S\u012bk\u0101ku inform\u0101ciju atrad\u012bsiet gem readme. \u012asteno\u0161ana sast\u0101v no modu\u013ciem:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Dom\u0113ns,<\/li>\n\n\n\n<li>Pas\u0101kums,<\/li>\n\n\n\n<li>Notikumu apstr\u0101d\u0101t\u0101js,<\/li>\n\n\n\n<li>Pas\u0101kuma izdev\u0113js,<\/li>\n\n\n\n<li>Abon\u0113\u0161ana.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Dom\u0113ns<\/h3>\n\n\n\n<p>Apraksta uz\u0146\u0113m\u0113jdarb\u012bbas lo\u0123iku, lai nodro\u0161in\u0101tu kontekstu Pub\/Sub un t\u0101d\u0113j\u0101di nodro\u0161in\u0101tu t\u012br\u012bbu. <a href=\"https:\/\/thecodest.co\/lv\/dictionary\/what-is-code-refactoring\/\">kods<\/a>.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"ruby\" class=\"language-ruby\"> modulis Pazi\u0146ojumi\n   papla\u0161in\u0101t PubSub::Domain\n beigas<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"ruby\" class=\"language-ruby\"> modulis Zi\u0146ojumi\n   papla\u0161in\u0101t PubSub::Domain\n beigas\n\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Pas\u0101kums<\/h3>\n\n\n\n<p>T\u0101 ir klase, kas apraksta notiku\u0161o. Deklar\u0113jiet klases nosaukumu k\u0101 pa\u0161apraksto\u0161u, p\u0113c iesp\u0113jas nor\u0101dot, kas noticis, piem\u0113ram: atcelts, main\u012bts, izveidots, izn\u012bcin\u0101ts, nos\u016bt\u012bts, atjaunin\u0101ts. Notikumu nosaukumi var izskat\u012bties \u0161\u0101di: ProfitAndLossStatementCreatedEvent, kas noz\u012bm\u0113, ka tika izveidots finan\u0161u p\u0101rskats.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"ruby\" class=\"language-ruby\"> klase Reports::ProfitAndLossStatementCreatedEvent &lt; PubSub::DomainEvent\n   atrib\u016bts :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\">Pas\u0101kuma izdev\u0113js<\/h3>\n\n\n\n<p>Klase, kas sp\u0113j emit\u0113t notikumus. \u0160aj\u0101 piem\u0113r\u0101 ir par\u0101d\u012bta pakalpojuma zi\u0146ojuma izveide. Kad zi\u0146ojums ir veiksm\u012bgi izveidots, tiek emit\u0113ts notikums par zi\u0146ojuma izveido\u0161anu.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"ruby\" class=\"language-ruby\">klase 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\">Notikumu apstr\u0101d\u0101t\u0101js<\/h3>\n\n\n\n<p>\u0160\u012b klase j\u0101izpilda, rea\u0123\u0113jot uz notikuma apstr\u0101di.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"ruby\" class=\"language-ruby\">modulis Pazi\u0146ojumi\n klase ReportsProfitAndLossStatementCreatedHandler &lt; PubSub::DomainEventHandler\n   def call\n     ReportMailer.profit_and_loss_statement(profit_and_loss_statement).deliver_now\n   end\n\n   priv\u0101ts\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\">Abonements<\/h3>\n\n\n\n<p>Notikumi ir saist\u012bti ar saviem apstr\u0101d\u0101t\u0101jiem, izmantojot abonementus.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"yaml\" class=\"language-yaml\">pazi\u0146ojumi:\n reports__profit_and_loss_statement_created: async<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Lieto\u0161anas piem\u0113ri:<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\"Follow\" funkcija soci\u0101lajos t\u012bklos,<\/li>\n\n\n\n<li>Lietu internets,<\/li>\n\n\n\n<li>Nos\u016bt\u012b\u0161ana,<\/li>\n\n\n\n<li>Pazi\u0146ojums par \u0123ener\u0113tajiem failiem.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">L\u012bdz\u012bgi mode\u013ci<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><b>EventBus<\/b> - komponenti var s\u016bt\u012bt notikumus uz EventBus, nezinot, kas tos sa\u0146ems vai cik respondentu tos sa\u0146ems. <a href=\"https:\/\/thecodest.co\/lv\/blog\/react-development-all-you-have-to-know\/\">rea\u0123\u0113t<\/a>,<\/li>\n\n\n\n<li><b>Nov\u0113rot\u0101js<\/b> - subjekts uztur atkar\u012bgo personu sarakstu, ko sauc par nov\u0113rot\u0101jiem, un inform\u0113 tos, kad main\u0101s to st\u0101voklis,<\/li>\n\n\n\n<li><b>Apvieno\u0161ana<\/b> - veicot aptauju, klienti periodiski jaut\u0101 sist\u0113mai, vai ir jauni notikumi vai dati.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">D\u0101rgakme\u0146i<\/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>vietn\u0113<\/em>sliedes<\/a><\/p>\n<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Kopsavilkums<\/h2>\n\n\n\n<p>Pub\/sub nav izplat\u012bta pieeja Ruby in Rails. K\u0101 jau rakst\u0101 min\u0113ts, \u0161is modelis projektam var dot daudz priek\u0161roc\u012bbu - tas var padar\u012bt kodu t\u012bru, atsaist\u012bt pakalpojumus un padar\u012bt tos viegli m\u0113rogojamus.<\/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=\"sadarb\u012bbas baneris\"\/><\/a><\/figure>","protected":false},"excerpt":{"rendered":"<p>Pub\/Sub var sniegt projektam daudz priek\u0161roc\u012bbu - tas var padar\u012bt kodu t\u012bru, atsaist\u012bt pakalpojumus un padar\u012bt tos viegli m\u0113rogojamus. Uzziniet vair\u0101k par Pub\/Sub \u0161aj\u0101 rakst\u0101 un paaugstiniet sava projekta l\u012bmeni!<\/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\/lv\/emuars\/uzziniet-vairak-par-ruby-on-rails-ar-pub-sub\/\" \/>\n<meta property=\"og:locale\" content=\"lv_LV\" \/>\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\/lv\/emuars\/uzziniet-vairak-par-ruby-on-rails-ar-pub-sub\/\" \/>\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\":\"lv\",\"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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