{"id":49686,"date":"2023-01-09T15:53:07","date_gmt":"2023-01-10T08:04:18","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e5%9c%a8django%e4%b8%ad%e5%b0%86datefield%e8%ae%be%e4%b8%badefaulttimezone-now%e3%80%82\/"},"modified":"2024-04-29T09:14:07","modified_gmt":"2024-04-29T01:14:07","slug":"%e6%88%91%e5%9c%a8django%e4%b8%ad%e5%b0%86datefield%e8%ae%be%e4%b8%badefaulttimezone-now%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e5%9c%a8django%e4%b8%ad%e5%b0%86datefield%e8%ae%be%e4%b8%badefaulttimezone-now%e3%80%82\/","title":{"rendered":"\u6211\u5728Django\u4e2d\u5c06DateField\u8bbe\u4e3adefault=timezone.now"},"content":{"rendered":"<p>\u4f60\u597d\uff0c\u6211\u662fDensyakun\u3002<\/p>\n<p>\u6211\u731c\u662f\u56e0\u4e3a\u91cd\u65b0\u5f00\u59cb\u5f00\u53d1\u4e00\u6bb5\u65f6\u95f4\u6ca1\u6709\u5904\u7406\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u6240\u4ee5\u7528Django\u5728DateField\u4e2d\u5199\u4e86default=timezone.now\u624d\u5bfc\u81f4\u8fd9\u4e2a\u95ee\u9898\u3002<\/p>\n<h6>\u4f60\u60f3\u8981\u505a\u4ec0\u4e48\uff1f<\/h6>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u65e5\u4ed8\u306e\u307f\u3092\u6271\u3044\u305f\u3044<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5024\u3092\u7121\u3057\u306b\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u305f\u3044<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u5165\u529b\u3057\u3084\u3059\u304f\u3059\u308b\u305f\u3081\u3001\u521d\u671f\u5024\u3092\u4eca\u65e5\u306b\u3057\u305f\u3044 \uff08auto_\u7cfb\u306f\u5f37\u5236\u306a\u306e\u3067\u76ee\u7684\u3068\u9055\u3046\uff09<\/ul>\n<h6>\u73af\u5883<\/h6>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Windows 10 Pro<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Python 3.7.7<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">pip 20.2.1<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Django 3.0.7<\/ul>\n<h1>\u5343\u4e07\u4e0d\u8981\u5199\u7684\u4ee3\u7801.<\/h1>\n<pre class=\"post-pre\"><code><span class=\"kn\">from<\/span> <span class=\"nn\">django.db<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">models<\/span>\r\n<span class=\"kn\">from<\/span> <span class=\"nn\">django.utils<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">timezone<\/span>\r\n\r\n<span class=\"k\">class<\/span> <span class=\"nc\">Production<\/span><span class=\"p\">(<\/span><span class=\"n\">models<\/span><span class=\"p\">.<\/span><span class=\"n\">Model<\/span><span class=\"p\">):<\/span>\r\n    <span class=\"n\">first_date<\/span> <span class=\"o\">=<\/span> <span class=\"n\">models<\/span><span class=\"p\">.<\/span><span class=\"n\">DateField<\/span><span class=\"p\">(<\/span><span class=\"n\">default<\/span><span class=\"o\">=<\/span><span class=\"n\">timezone<\/span><span class=\"p\">.<\/span><span class=\"n\">now<\/span><span class=\"p\">)<\/span>\r\n<\/code><\/pre>\n<h1>\u9519\u8bef<\/h1>\n<p>\u7531\u4e8eDjango\u548csqlite3\u7684\u5185\u90e8\u9519\u8bef\uff0c\u6211\u8ba4\u4e3a\u8fd9\u662f\u4e00\u4e2a\u9519\u8bef\u3002<\/p>\n<pre class=\"post-pre\"><code>Traceback (most recent call last):\r\n  File \"C:\\Users\\densy\\AppData\\Local\\Programs\\Python\\Python37\\lib\\site-packages\\django\\core\\handlers\\exception.py\", line 34, in inner       \r\n    response = get_response(request)\r\n  File \"C:\\Users\\densy\\AppData\\Local\\Programs\\Python\\Python37\\lib\\site-packages\\django\\core\\handlers\\base.py\", line 156, in _get_response   \r\n    response = self.process_exception_by_middleware(e, request)\r\n  File \"C:\\Users\\densy\\AppData\\Local\\Programs\\Python\\Python37\\lib\\site-packages\\django\\core\\handlers\\base.py\", line 154, in _get_response   \r\n    response = response.render()\r\n  File \"C:\\Users\\densy\\AppData\\Local\\Programs\\Python\\Python37\\lib\\site-packages\\django\\template\\response.py\", line 106, in render\r\n    self.content = self.rendered_content\r\n  File \"C:\\Users\\densy\\AppData\\Local\\Programs\\Python\\Python37\\lib\\site-packages\\django\\template\\response.py\", line 83, in rendered_content  \r\n    content = template.render(context, self._request)\r\n  File \"C:\\Users\\densy\\AppData\\Local\\Programs\\Python\\Python37\\lib\\site-packages\\django\\template\\backends\\django.py\", line 61, in render     \r\n    return self.template.render(context)\r\n  File \"C:\\Users\\densy\\AppData\\Local\\Programs\\Python\\Python37\\lib\\site-packages\\django\\template\\base.py\", line 171, in render\r\n    return self._render(context)\r\n  File \"C:\\Users\\densy\\AppData\\Local\\Programs\\Python\\Python37\\lib\\site-packages\\django\\template\\base.py\", line 163, in _render\r\n    return self.nodelist.render(context)\r\n  File \"C:\\Users\\densy\\AppData\\Local\\Programs\\Python\\Python37\\lib\\site-packages\\django\\template\\base.py\", line 937, in render\r\n    bit = node.render_annotated(context)\r\n  File \"C:\\Users\\densy\\AppData\\Local\\Programs\\Python\\Python37\\lib\\site-packages\\django\\template\\base.py\", line 904, in render_annotated     \r\n    return self.render(context)\r\n  File \"C:\\Users\\densy\\AppData\\Local\\Programs\\Python\\Python37\\lib\\site-packages\\django\\template\\defaulttags.py\", line 308, in render        \r\n    if match:\r\n  File \"C:\\Users\\densy\\AppData\\Local\\Programs\\Python\\Python37\\lib\\site-packages\\django\\db\\models\\query.py\", line 272, in __bool__\r\n    self._fetch_all()\r\n  File \"C:\\Users\\densy\\AppData\\Local\\Programs\\Python\\Python37\\lib\\site-packages\\django\\db\\models\\query.py\", line 1186, in _fetch_all        \r\n    self._result_cache = list(self._iterable_class(self))\r\n  File \"C:\\Users\\densy\\AppData\\Local\\Programs\\Python\\Python37\\lib\\site-packages\\django\\db\\models\\query.py\", line 54, in __iter__\r\n    results = compiler.execute_sql(chunked_fetch=self.chunked_fetch, chunk_size=self.chunk_size)\r\n  File \"C:\\Users\\densy\\AppData\\Local\\Programs\\Python\\Python37\\lib\\site-packages\\django\\db\\models\\sql\\compiler.py\", line 1065, in execute_sql\r\n    cursor.execute(sql, params)\r\n  File \"C:\\Users\\densy\\AppData\\Local\\Programs\\Python\\Python37\\lib\\site-packages\\django\\db\\backends\\utils.py\", line 100, in execute\r\n    return super().execute(sql, params)\r\n  File \"C:\\Users\\densy\\AppData\\Local\\Programs\\Python\\Python37\\lib\\site-packages\\django\\db\\backends\\utils.py\", line 68, in execute\r\n    return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)\r\n  File \"C:\\Users\\densy\\AppData\\Local\\Programs\\Python\\Python37\\lib\\site-packages\\django\\db\\backends\\utils.py\", line 77, in _execute_with_wrappers\r\n    return executor(sql, params, many, context)\r\n  File \"C:\\Users\\densy\\AppData\\Local\\Programs\\Python\\Python37\\lib\\site-packages\\django\\db\\backends\\utils.py\", line 85, in _execute\r\n    return self.cursor.execute(sql, params)\r\n  File \"C:\\Users\\densy\\AppData\\Local\\Programs\\Python\\Python37\\lib\\site-packages\\django\\db\\backends\\sqlite3\\base.py\", line 298, in execute\r\n    return Database.Cursor.execute(self, query, params)\r\n  File \"C:\\Users\\densy\\AppData\\Local\\Programs\\Python\\Python37\\lib\\sqlite3\\dbapi2.py\", line 64, in convert_date\r\n    return datetime.date(*map(int, val.split(b\"-\")))\r\nValueError: invalid literal for int() with base 10: b'26 18:02:28.712485'\r\n<\/code><\/pre>\n<h1>\u6211\u60f3\u8981\u89e3\u51b3<\/h1>\n<p>\u4f7f\u7528\u6570\u636e\u7684\u6a21\u677f\u9875\u9762\u548cadmin\u9875\u9762\u65e0\u6cd5\u8bbf\u95ee\uff0c\u4e5f\u65e0\u6cd5\u5728shell\u4e2d\u4f7f\u7528Production.objects.all()\uff08\u51fa\u73b0\u76f8\u540c\u9519\u8bef\uff09\u3002Production.objects\u4e4b\u524d\u6ca1\u6709\u95ee\u9898\u3002<\/p>\n<p>DateField\u53ea\u652f\u6301\u65e5\u671f\uff0c\u4f46\u5728Shell\u4e2d\u67e5\u770b\u65f6\u5374\u53d8\u6210\u4e86datetime\u3002<\/p>\n<p>\u9996\u5148\uff0c\u5c06models.DateTimeField()\u66f4\u6539\u4e3a\u4e00\u5ea6\uff0c\u7136\u540e\u8fdb\u884cmakemigrations\u548cmigrate\u64cd\u4f5c\uff0c<br \/>\n\u5728\u786e\u8ba4\u540e\uff0c\u9519\u8bef\u6d88\u5931\u4e86\uff0c\u5e76\u4e14\u6709\u663e\u793a\u65f6\u95f4\u3002<\/p>\n<p>\u7136\u540e\uff0c\u6211\u4f7f\u7528Django\u7684shell\u624b\u52a8\u4fee\u6b63\u4e86\u6570\u636e\uff0c\u7136\u540e\u5c06\u6a21\u578b\u66f4\u6539\u4e3aDateField\uff0c\u5e76\u5c06\u9ed8\u8ba4\u503c\u8bbe\u4e3adatetime.date.today\uff0c\u4f46\u8fd9\u662f\u65e0\u610f\u4e49\u7684\uff0c\u56e0\u4e3a\u65e5\u671f\u6ca1\u6709\u65f6\u533a\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">from<\/span> <span class=\"nn\">django.db<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">models<\/span>\r\n<span class=\"kn\">from<\/span> <span class=\"nn\">datetime<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">date<\/span>\r\n\r\n<span class=\"k\">class<\/span> <span class=\"nc\">Production<\/span><span class=\"p\">(<\/span><span class=\"n\">models<\/span><span class=\"p\">.<\/span><span class=\"n\">Model<\/span><span class=\"p\">):<\/span>\r\n    <span class=\"n\">first_date<\/span> <span class=\"o\">=<\/span> <span class=\"n\">models<\/span><span class=\"p\">.<\/span><span class=\"n\">DateField<\/span><span class=\"p\">(<\/span><span class=\"n\">default<\/span><span class=\"o\">=<\/span><span class=\"n\">date<\/span><span class=\"p\">.<\/span><span class=\"n\">today<\/span><span class=\"p\">)<\/span>\r\n<\/code><\/pre>\n<p>\u6211\u6267\u884c\u4e86makemigrations\u548cmigrate\uff0c\u4f46\u95ee\u9898\u6ca1\u6709\u89e3\u51b3\u3002<\/p>\n<p>\u4f7f\u7528\u5341\u8fdb\u5236int()\u51fd\u6570\u65f6\u51fa\u73b0\u65e0\u6548\u7684\u6587\u5b57\uff0c\u4ee5\u57fa\u657010: b&#8217;25 15:00:00&#8217;\u3002<br \/>\n\u8fd9\u4e2a\u9519\u8bef\u51fa\u73b0\u4e86\uff0c\u5e76\u4e14\u65f6\u95f4\u5df2\u7ecf\u6539\u53d8\u4e86\uff0c\u4f46\u662f\u9519\u8bef\u6ca1\u6709\u6539\u53d8\u3002<\/p>\n<p>\u6b64\u5916\uff0c\u7531\u4e8e\u6211\u5e0c\u671b\u5728\u6211\u7684\u60c5\u51b5\u4e0b\u4e0d\u4f7f\u7528\u503c\uff0c\u56e0\u6b64\u6211\u5c06\u5176\u8bbe\u7f6e\u4e3ablank=True\u548cnull=True\u3002<br \/>\n\u6211\u539f\u672c\u4ee5\u4e3a\u8fd9\u53ef\u80fd\u662f\u539f\u56e0\uff0c\u4f46\u662f\u540e\u6765\u53d1\u73b0\u5982\u679c\u53ea\u6709blank=True\u6216\u8005\u53ea\u6709null=True\uff0c\u4f1a\u51fa\u73b0\u53e6\u4e00\u4e2a\u9519\u8bef\uff0c\u6240\u4ee5\u6211\u5c31\u4fdd\u6301\u4e86\u539f\u6837\u3002<\/p>\n<h1>\u66f4\u65b0Python\u3001pip\u3001Django<\/h1>\n<p>\u6211\u5c06Python\u7248\u672c\u66f4\u6539\u4e3a3.8.5\u5e76\u5c1d\u8bd5\u4e86\u4e00\u4e0b\uff0c\u4f46\u662f\u4ecd\u7136\u51fa\u73b0\u4e86\u76f8\u540c\u7684\u9519\u8bef\u3002<\/p>\n<p>\u7136\u540e\uff0c\u6211\u5c06pip\u66f4\u65b0\u5230\u4e8620.2.2\u7248\u672c\uff0c\u5c06Django\u66f4\u65b0\u5230\u4e863.1\u7248\u672c\u3002<\/p>\n<h1>\u6700\u7ec8\u7ed3\u679c<\/h1>\n<p>\u4e3a\u4e86\u907f\u514d\u91cd\u65b0\u521b\u5efa\u6570\u636e\uff0c\u6700\u7ec8\u6211\u9009\u62e9\u4e86\u4f7f\u7528DateTimeField\u5e76\u5c06\u5176\u8bbe\u7f6e\u4e3atimezone.now\u3002<\/p>\n<p>\u5c3d\u7ba1\u65f6\u95f4\u88ab\u6dfb\u52a0\u4e86\uff0c\u4f46\u6211\u4eec\u4f1a\u5728\u663e\u793a\u7aef\u8fdb\u884c\u5904\u7406\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f60\u597d\uff0c\u6211\u662fDensyakun\u3002 \u6211\u731c\u662f\u56e0\u4e3a\u91cd\u65b0\u5f00\u59cb\u5f00\u53d1\u4e00\u6bb5\u65f6\u95f4\u6ca1\u6709\u5904\u7406\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u6240\u4ee5\u7528Django\u5728Date [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-49686","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u6211\u5728Django\u4e2d\u5c06DateField\u8bbe\u4e3adefault=timezone.now - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u6211\u5728django\u4e2d\u5c06datefield\u8bbe\u4e3adefaulttimezone-now\u3002\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u6211\u5728Django\u4e2d\u5c06DateField\u8bbe\u4e3adefault=timezone.now\" \/>\n<meta property=\"og:description\" content=\"\u4f60\u597d\uff0c\u6211\u662fDensyakun\u3002 \u6211\u731c\u662f\u56e0\u4e3a\u91cd\u65b0\u5f00\u59cb\u5f00\u53d1\u4e00\u6bb5\u65f6\u95f4\u6ca1\u6709\u5904\u7406\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u6240\u4ee5\u7528Django\u5728Date [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u6211\u5728django\u4e2d\u5c06datefield\u8bbe\u4e3adefaulttimezone-now\u3002\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-01-10T08:04:18+00:00\" \/>\n<meta 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