{"id":53653,"date":"2019-12-07T00:00:00","date_gmt":"2019-12-06T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/vypusk-web-frejmvorka-django-3-0"},"modified":"2020-02-18T14:01:35","modified_gmt":"2020-02-18T11:01:35","slug":"vypusk-web-frejmvorka-django-3-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hr\/blog\/news\/vypusk-web-frejmvorka-django-3-0","title":{"rendered":"Izlazak web okvira Django 3.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.djangoproject.com\/weblog\/2019\/dec\/02\/django-3-released\/\">Odr\u017eano<\/a><\/noindex>  izdanje web okvira <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.djangoproject.com\/en\/3.0\/releases\/3.0\/\">Django 3.0<\/a><\/noindex>, napisanog u Python jeziku i namijenjenog za razvoj web aplikacija. Grana Django 3.0 pripada kategoriji izdanja sa redovnom podr\u0161kom i <noindex><a rel=\"nofollow\" href=\"https:\/\/www.djangoproject.com\/download\/#supported-versions\">dobivat \u0107e<\/a><\/noindex> a\u017euriranja do travnja 2021. godine. LTS grana 2.22 bit \u0107e podr\u017eavana do travnja 2022. godine, dok \u0107e grana 1.11 biti podr\u017eavana do travnja 2020. godine. Podr\u0161ka za granu 2.1 je ukinuta. <\/p>\n<p>Klju\u010dne <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.djangoproject.com\/en\/3.0\/releases\/3.0\/\">pobolj\u0161anja<\/a><\/noindex>: <\/p>\n<ul>\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.djangoproject.com\/en\/3.0\/howto\/deployment\/asgi\/\">Osigurana je<\/a><\/noindex> podr\u0161ka za rad u asinhronom na\u010dinu s izvo\u0111enjem u obliku ASGI aplikacije. Programski su\u010delje <noindex><a rel=\"nofollow\" href=\"https:\/\/asgi.readthedocs.io\/\">ASGI<\/a><\/noindex> (Asynchronous Server Gateway Interface) razvijeno je kao zamjena za WSGI, usmjereno na osiguravanje me\u0111usobne povezanosti poslu\u017eitelja, okvira i aplikacija koje podr\u017eavaju rad u asinhronom na\u010dinu. Podr\u0161ka za pokretanje koriste\u0107i WSGI je sa\u010duvana, a kod povezan s asinhronim na\u010dinom uklju\u010duje se samo prilikom pokretanja u okru\u017eenjima temeljenim na ASGI.\n<p>Za asinkroni re\u017eim implementiran je poseban ciklus obrade doga\u0111aja (event loop), u kojem se ne dopu\u0161ta pozivanje koda ozna\u010denog kao &#171;async unsafe&#187;. Ovaj kod uklju\u010duje, na primjer, operacije s bazama podataka (ORM), koje se ne mogu koristiti u asinkronom kontekstu (u tom slu\u010daju bit \u0107e prikazana pogre\u0161ka SynchronousOnlyOperation) i treba ih isklju\u010diti u zasebni sinkroni niti.<\/p>\n<li class=\"l\"> Dodani su specijalizirani enumerirane vrste TextChoices, IntegerChoices i Choices, koji se mogu <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.djangoproject.com\/en\/3.0\/ref\/models\/fields\/#field-choices-enum-types\">koristiti<\/a><\/noindex> koristiti za definiranje tekstualnih i cijelobrojnih polja u modelima, primjerice, prilikom potrebe za pohranjivanjem u poljima setova \u010ditljivih oznaka, prevo\u0111enih u odre\u0111ene oznake:\n<p>   class YearInSchool(models.TextChoices):<br \/>\n        FRESHMAN = &#8216;FR&#8217;, _(&#8216;Freshman&#8217;)<br \/>\n        SOPHOMORE = &#8216;SO&#8217;, _(&#8216;Sophomore&#8217;)<br \/>\n        JUNIOR = &#8216;JR&#8217;, _(&#8216;Junior&#8217;)<br \/>\n        SENIOR = &#8216;SR&#8217;, _(&#8216;Senior&#8217;)<br \/>\n        GRADUATE = &#8216;GR&#8217;, _(&#8216;Graduate&#8217;)<\/p>\n<li class=\"l\"> Dodana je mogu\u0107nost navo\u0111enja izraza koji vra\u0107aju <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.djangoproject.com\/en\/3.0\/ref\/models\/fields\/#django.db.models.BooleanField\">BooleanField<\/a><\/noindex>, izravno u filtrima QuerySet-a bez prethodnog anotiranja, prije primjene za filtriranje anotacija.\n<li class=\"l\"> Osigurana je slu\u017ebena podr\u0161ka za MariaDB 10.1 i novije verzije.\n<li class=\"l\"> Za PostgreSQL implementirana je klasa <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.djangoproject.com\/en\/3.0\/ref\/contrib\/postgres\/constraints\/#django.contrib.postgres.constraints.ExclusionConstraint\">ExclusionConstraint<\/a><\/noindex> za kori\u0161tenje ograni\u010denja temeljenih na izrazu <noindex><a rel=\"nofollow\" href=\"https:\/\/www.postgresql.org\/docs\/9.0\/ddl-constraints.html\">EXCLUDE<\/a><\/noindex>;\n<li class=\"l\"> Prekinuta je podr\u0161ka za Python 3.5.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Izvor: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51989\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0421\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 web-\u0444\u0440\u0435\u0439\u043c\u0432\u043e\u0440\u043a\u0430 Django 3.0, \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043d\u043e\u0433\u043e \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Python \u0438 \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043d\u043e\u0433\u043e \u0434\u043b\u044f \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0432\u0435\u0431-\u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439. \u0412\u0435\u0442\u043a\u0430 Django 3.0 \u043e\u0442\u043d\u0435\u0441\u0435\u043d\u0430 \u043a \u043a\u0430\u0442\u0435\u0433\u043e\u0440\u0438\u0438 \u0432\u044b\u043f\u0443\u0441\u043a\u043e\u0432 \u0441 \u043e\u0431\u044b\u0447\u043d\u044b\u043c \u0441\u0440\u043e\u043a\u043e\u043c \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 \u0438 \u0431\u0443\u0434\u0435\u0442 \u043f\u043e\u043b\u0443\u0447\u0430\u0442\u044c \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u0434\u043e \u0430\u043f\u0440\u0435\u043b\u044f 2021 \u0433\u043e\u0434\u0430. LTS-\u0432\u0435\u0442\u043a\u0430 2.22 \u0431\u0443\u0434\u0435\u0442 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0442\u044c\u0441\u044f \u0434\u043e \u0430\u043f\u0440\u0435\u043b\u044f 2022 \u0433\u043e\u0434\u0430, \u0430 \u0432\u0435\u0442\u043a\u0430 1.11 \u0434\u043e \u0430\u043f\u0440\u0435\u043b\u044f 2020 \u0433\u043e\u0434\u0430. \u041f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u0432\u0435\u0442\u043a\u0438 2.1 \u043f\u0440\u0435\u043a\u0440\u0430\u0449\u0435\u043d\u0430. \u041a\u043b\u044e\u0447\u0435\u0432\u044b\u0435 \u0443\u043b\u0443\u0447\u0448\u0435\u043d\u0438\u044f: \u041f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0430 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-53653","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0421\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 web-\u0444\u0440\u0435\u0439\u043c\u0432\u043e\u0440\u043a\u0430\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/hr\/blog\/news\/vypusk-web-frejmvorka-django-3-0\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.4\" \/>\n\t\t<meta 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