{"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\/sv\/blog\/news\/vypusk-web-frejmvorka-django-3-0","title":{"rendered":"Utg\u00e5van av webbramverket 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\/\">H\u00e4ndelse genomf\u00f6rd<\/a><\/noindex>  utg\u00e5van av webb-ramverket <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.djangoproject.com\/en\/3.0\/releases\/3.0\/\">Django 3.0<\/a><\/noindex>, som \u00e4r skrivet i Python och avsett f\u00f6r utveckling av webbapplikationer. Versionen Django 3.0 klassificeras som en release med vanlig support och kommer att <noindex><a rel=\"nofollow\" href=\"https:\/\/www.djangoproject.com\/download\/#supported-versions\">att f\u00e5<\/a><\/noindex> uppdateras fram till april 2021. LTS-versionen 2.22 kommer att st\u00f6djas till april 2022, medan version 1.11 kommer att st\u00f6djas till april 2020. St\u00f6det f\u00f6r version 2.1 har upph\u00f6rt. <\/p>\n<p>Nyckel <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.djangoproject.com\/en\/3.0\/releases\/3.0\/\">f\u00f6rb\u00e4ttringar<\/a><\/noindex>: <\/p>\n<ul>\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.djangoproject.com\/en\/3.0\/howto\/deployment\/asgi\/\">Tillhandah\u00e5llet<\/a><\/noindex> st\u00f6d f\u00f6r att arbeta i asynkront l\u00e4ge med k\u00f6rning i form av en ASGI-applikation. Gr\u00e4nssnittet <noindex><a rel=\"nofollow\" href=\"https:\/\/asgi.readthedocs.io\/\">ASGI<\/a><\/noindex> (Asynchronous Server Gateway Interface) har utvecklats som en ers\u00e4ttning f\u00f6r WSGI, avsett att m\u00f6jligg\u00f6ra interaktion mellan servrar, ramverk och applikationer som st\u00f6djer asynkron drift. St\u00f6d f\u00f6r k\u00f6rning med WSGI har bevarats, och koden relaterad till asynkront l\u00e4ge inkluderas endast vid k\u00f6rning i ASGI-baserade milj\u00f6er.\n<p>\u0414\u043b\u044f \u0430\u0441\u0438\u043d\u0445\u0440\u043e\u043d\u043d\u043e\u0433\u043e \u0440\u0435\u0436\u0438\u043c\u0430 \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u0439 \u0446\u0438\u043a\u043b \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0441\u043e\u0431\u044b\u0442\u0438\u0439 (event loop), \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u043d\u0435\u0434\u043e\u043f\u0443\u0441\u043a\u0430\u0435\u0442\u0441\u044f \u0432\u044b\u0437\u043e\u0432 \u043a\u043e\u0434\u0430, \u043f\u043e\u043c\u0435\u0447\u0435\u043d\u043d\u043e\u0433\u043e \u043a\u0430\u043a &#171;async unsafe&#187;. \u041a \u0442\u0430\u043a\u043e\u043c\u0443 \u043a\u043e\u0434\u0443 \u043e\u0442\u043d\u0435\u0441\u0435\u043d\u044b, \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438 c \u0421\u0423\u0411\u0414 (ORM), \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043d\u0435\u043b\u044c\u0437\u044f \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0432 \u0430\u0441\u0438\u043d\u0445\u0440\u043e\u043d\u043d\u043e\u043c \u043a\u043e\u043d\u0442\u0435\u043a\u0441\u0442\u0435 (\u0432 \u044d\u0442\u043e\u043c \u0441\u043b\u0443\u0447\u0430\u0435 \u0431\u0443\u0434\u0435\u0442 \u0432\u044b\u0432\u043e\u0434\u0438\u0442\u044c\u0441\u044f \u043e\u0448\u0438\u0431\u043a\u0430 SynchronousOnlyOperation)  \u0438 \u0441\u043b\u0435\u0434\u0443\u0435\u0442 \u0432\u044b\u043d\u043e\u0441\u0438\u0442\u044c \u0432 \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u0439 \u0441\u0438\u043d\u0445\u0440\u043e\u043d\u043d\u044b\u0439 \u043f\u043e\u0442\u043e\u043a.<\/p>\n<li class=\"l\"> Specialiserade uppr\u00e4kningsbara typer TextChoices, IntegerChoices och Choices har lagts till, som kan <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.djangoproject.com\/en\/3.0\/ref\/models\/fields\/#field-choices-enum-types\">anv\u00e4nda<\/a><\/noindex> anv\u00e4ndas f\u00f6r att definiera text- och heltalsf\u00e4lt i modellen, till exempel vid behov av att lagra upps\u00e4ttningar av l\u00e4sbara etiketter, som \u00f6vers\u00e4tts till specifika attribut:\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\"> M\u00f6jlighet att ange uttryck som visar <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.djangoproject.com\/en\/3.0\/ref\/models\/fields\/#django.db.models.BooleanField\">BooleanField<\/a><\/noindex>, direkt i QuerySet-filtret utan f\u00f6reg\u00e5ende annotering innan de till\u00e4mpas f\u00f6r filter av annotationer.\n<li class=\"l\"> Officiellt st\u00f6d har givits f\u00f6r databasen MariaDB 10.1 och nyare versioner.\n<li class=\"l\"> F\u00f6r PostgreSQL har klassen <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.djangoproject.com\/en\/3.0\/ref\/contrib\/postgres\/constraints\/#django.contrib.postgres.constraints.ExclusionConstraint\">ExclusionConstraint<\/a><\/noindex> implementerats f\u00f6r att anv\u00e4nda begr\u00e4nsningar baserade p\u00e5 uttryck. <noindex><a rel=\"nofollow\" href=\"https:\/\/www.postgresql.org\/docs\/9.0\/ddl-constraints.html\">EXCLUDE<\/a><\/noindex>;\n<li class=\"l\"> St\u00f6det f\u00f6r Python 3.5 har upph\u00f6rt.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>K\u00e4lla: <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\/sv\/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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