{"id":49400,"date":"2023-10-23T13:41:39","date_gmt":"2023-03-19T02:28:02","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/django-%e5%88%9b%e5%bb%ba%e4%ba%86%e4%b8%80%e4%b8%aa%e5%b0%86%e7%94%b5%e8%af%9d%e5%8f%b7%e7%a0%81%e5%88%86%e4%b8%ba%e4%b8%89%e9%83%a8%e5%88%86%e7%9a%84%e8%a1%a8%e5%8d%95\/"},"modified":"2024-05-04T05:37:37","modified_gmt":"2024-05-03T21:37:37","slug":"django-%e5%88%9b%e5%bb%ba%e4%ba%86%e4%b8%80%e4%b8%aa%e5%b0%86%e7%94%b5%e8%af%9d%e5%8f%b7%e7%a0%81%e5%88%86%e4%b8%ba%e4%b8%89%e9%83%a8%e5%88%86%e7%9a%84%e8%a1%a8%e5%8d%95","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/django-%e5%88%9b%e5%bb%ba%e4%ba%86%e4%b8%80%e4%b8%aa%e5%b0%86%e7%94%b5%e8%af%9d%e5%8f%b7%e7%a0%81%e5%88%86%e4%b8%ba%e4%b8%89%e9%83%a8%e5%88%86%e7%9a%84%e8%a1%a8%e5%8d%95\/","title":{"rendered":"[Django] \u521b\u5efa\u4e86\u4e00\u4e2a\u5c06\u7535\u8bdd\u53f7\u7801\u5206\u4e3a\u4e09\u90e8\u5206\u7684\u8868\u5355"},"content":{"rendered":"<p>\u6211\u60f3\u5728Django\u4e2d\u521b\u5efa\u4e00\u4e2a\u7535\u8bdd\u53f7\u7801\u4ee5\u4e09\u4e2a\u6570\u5b57\u5206\u9694\u7684\u8868\u5355\uff01<br \/>\n\u2193<br \/>\n\u54ce\u5440\uff0cDjango\u7684\u6807\u51c6\u5e93\u91cc\u6ca1\u6709\u63d0\u4f9b\u8fd9\u4e2a\u529f\u80fd\u5417\uff1f<br \/>\n\u592a\u9ebb\u70e6\u4e86\uff0c\u8981\u81ea\u5df1\u7f16\u5199\u8fd9\u4e2a\u529f\u80fd\u3002<br \/>\n\u2193<br \/>\n\u6c42\u52a9\uff0cGPT\u5927\u795e\uff01\uff01\uff01<\/p>\n<h1>\u53d6\u80dc<\/h1>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d8b52913a08637a6cd20d\/2-0.png\" alt=\"image.png\" \/><\/div>\n<pre class=\"post-pre\"><code><span class=\"kn\">from<\/span> <span class=\"n\">hogeapp.custom_forms<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">PhoneNumberField<\/span>\r\n\r\n<span class=\"k\">class<\/span> <span class=\"nc\">HogeForm<\/span><span class=\"p\">(<\/span><span class=\"n\">forms<\/span><span class=\"p\">.<\/span><span class=\"n\">Form<\/span><span class=\"p\">):<\/span>\r\n    <span class=\"n\">phone_number<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">PhoneNumberField<\/span><span class=\"p\">()<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"nt\">&lt;div&gt;<\/span>\r\n    <span class=\"nt\">&lt;label<\/span> <span class=\"na\">for=<\/span><span class=\"s\">\"phone-number\"<\/span><span class=\"nt\">&gt;<\/span>{{ form.phone_number.label }}<span class=\"nt\">&lt;\/label&gt;<\/span>\r\n    {{ form.phone_number }}\r\n    <span class=\"nt\">&lt;div<\/span> <span class=\"na\">class=<\/span><span class=\"s\">\"text-danger\"<\/span><span class=\"nt\">&gt;<\/span>\r\n        {{ form.phone_number.errors }}\r\n    <span class=\"nt\">&lt;\/div&gt;<\/span>\r\n<span class=\"nt\">&lt;\/div&gt;<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"kn\">import<\/span> <span class=\"n\">re<\/span>\r\n\r\n<span class=\"kn\">from<\/span> <span class=\"n\">django<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">forms<\/span>\r\n<span class=\"kn\">from<\/span> <span class=\"n\">django.core.exceptions<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">ValidationError<\/span>\r\n<span class=\"kn\">from<\/span> <span class=\"n\">django.core.validators<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">MinLengthValidator<\/span><span class=\"p\">,<\/span> <span class=\"n\">MaxLengthValidator<\/span>\r\n<span class=\"kn\">from<\/span> <span class=\"n\">django.forms<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">MultiValueField<\/span><span class=\"p\">,<\/span> <span class=\"n\">MultiWidget<\/span>\r\n<span class=\"kn\">from<\/span> <span class=\"n\">django.forms.fields<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">CharField<\/span>\r\n<span class=\"kn\">from<\/span> <span class=\"n\">django.forms.widgets<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">TextInput<\/span>\r\n<span class=\"kn\">from<\/span> <span class=\"n\">django.utils.safestring<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">mark_safe<\/span>\r\n\r\n<span class=\"k\">def<\/span> <span class=\"nf\">validate_integer<\/span><span class=\"p\">(<\/span><span class=\"n\">value<\/span><span class=\"p\">):<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"ow\">not<\/span> <span class=\"n\">re<\/span><span class=\"p\">.<\/span><span class=\"nf\">match<\/span><span class=\"p\">(<\/span><span class=\"sh\">\"<\/span><span class=\"s\">^[0-9]+$<\/span><span class=\"sh\">\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">value<\/span><span class=\"p\">):<\/span>\r\n        <span class=\"k\">raise<\/span> <span class=\"nc\">ValidationError<\/span><span class=\"p\">(<\/span><span class=\"sh\">'<\/span><span class=\"s\">\u5165\u529b\u306f\u6574\u6570\u3067\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/span><span class=\"sh\">'<\/span><span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">class<\/span> <span class=\"nc\">PhoneNumberWidget<\/span><span class=\"p\">(<\/span><span class=\"n\">MultiWidget<\/span><span class=\"p\">):<\/span>\r\n    <span class=\"k\">def<\/span> <span class=\"nf\">__init__<\/span><span class=\"p\">(<\/span><span class=\"n\">self<\/span><span class=\"p\">,<\/span> <span class=\"n\">attrs<\/span><span class=\"o\">=<\/span><span class=\"bp\">None<\/span><span class=\"p\">):<\/span>\r\n        <span class=\"n\">_attrs<\/span> <span class=\"o\">=<\/span> <span class=\"n\">attrs<\/span> <span class=\"k\">if<\/span> <span class=\"n\">attrs<\/span> <span class=\"k\">else<\/span> <span class=\"p\">{}<\/span>\r\n        <span class=\"n\">_attrs<\/span><span class=\"p\">.<\/span><span class=\"nf\">update<\/span><span class=\"p\">({<\/span><span class=\"sh\">\"<\/span><span class=\"s\">class<\/span><span class=\"sh\">\"<\/span><span class=\"p\">:<\/span> <span class=\"sh\">\"<\/span><span class=\"s\">form-control<\/span><span class=\"sh\">\"<\/span><span class=\"p\">})<\/span>\r\n        <span class=\"n\">widgets<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[<\/span><span class=\"nc\">TextInput<\/span><span class=\"p\">(<\/span><span class=\"n\">attrs<\/span><span class=\"o\">=<\/span><span class=\"n\">_attrs<\/span><span class=\"p\">),<\/span> <span class=\"nc\">TextInput<\/span><span class=\"p\">(<\/span><span class=\"n\">attrs<\/span><span class=\"o\">=<\/span><span class=\"n\">_attrs<\/span><span class=\"p\">),<\/span> <span class=\"nc\">TextInput<\/span><span class=\"p\">(<\/span><span class=\"n\">attrs<\/span><span class=\"o\">=<\/span><span class=\"n\">_attrs<\/span><span class=\"p\">)]<\/span>\r\n        <span class=\"nf\">super<\/span><span class=\"p\">().<\/span><span class=\"nf\">__init__<\/span><span class=\"p\">(<\/span><span class=\"n\">widgets<\/span><span class=\"p\">,<\/span> <span class=\"n\">attrs<\/span><span class=\"p\">)<\/span>\r\n\r\n    <span class=\"k\">def<\/span> <span class=\"nf\">decompress<\/span><span class=\"p\">(<\/span><span class=\"n\">self<\/span><span class=\"p\">,<\/span> <span class=\"n\">value<\/span><span class=\"p\">):<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"n\">value<\/span><span class=\"p\">:<\/span>\r\n            <span class=\"k\">return<\/span> <span class=\"n\">value<\/span><span class=\"p\">.<\/span><span class=\"nf\">split<\/span><span class=\"p\">(<\/span><span class=\"sh\">'<\/span><span class=\"s\">-<\/span><span class=\"sh\">'<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"p\">[<\/span><span class=\"sh\">''<\/span><span class=\"p\">,<\/span> <span class=\"sh\">''<\/span><span class=\"p\">,<\/span> <span class=\"sh\">''<\/span><span class=\"p\">]<\/span>\r\n\r\n    <span class=\"k\">def<\/span> <span class=\"nf\">render<\/span><span class=\"p\">(<\/span><span class=\"n\">self<\/span><span class=\"p\">,<\/span> <span class=\"n\">name<\/span><span class=\"p\">,<\/span> <span class=\"n\">value<\/span><span class=\"p\">,<\/span> <span class=\"n\">attrs<\/span><span class=\"o\">=<\/span><span class=\"bp\">None<\/span><span class=\"p\">,<\/span> <span class=\"n\">renderer<\/span><span class=\"o\">=<\/span><span class=\"bp\">None<\/span><span class=\"p\">):<\/span>\r\n        <span class=\"n\">rendered_widgets<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[]<\/span>\r\n        <span class=\"k\">for<\/span> <span class=\"n\">index<\/span><span class=\"p\">,<\/span> <span class=\"n\">widget_data<\/span> <span class=\"ow\">in<\/span> <span class=\"nf\">enumerate<\/span><span class=\"p\">(<\/span><span class=\"n\">self<\/span><span class=\"p\">.<\/span><span class=\"nf\">get_context<\/span><span class=\"p\">(<\/span><span class=\"n\">name<\/span><span class=\"p\">,<\/span> <span class=\"n\">value<\/span><span class=\"p\">,<\/span> <span class=\"n\">attrs<\/span><span class=\"p\">)[<\/span><span class=\"sh\">'<\/span><span class=\"s\">widget<\/span><span class=\"sh\">'<\/span><span class=\"p\">][<\/span><span class=\"sh\">'<\/span><span class=\"s\">subwidgets<\/span><span class=\"sh\">'<\/span><span class=\"p\">]):<\/span>\r\n            <span class=\"n\">widget_instance<\/span> <span class=\"o\">=<\/span> <span class=\"n\">self<\/span><span class=\"p\">.<\/span><span class=\"n\">widgets<\/span><span class=\"p\">[<\/span><span class=\"n\">index<\/span><span class=\"p\">]<\/span>\r\n            <span class=\"n\">rendered_widgets<\/span><span class=\"p\">.<\/span><span class=\"nf\">append<\/span><span class=\"p\">(<\/span><span class=\"n\">widget_instance<\/span><span class=\"p\">.<\/span><span class=\"nf\">render<\/span><span class=\"p\">(<\/span><span class=\"n\">name<\/span><span class=\"o\">=<\/span><span class=\"n\">widget_data<\/span><span class=\"p\">[<\/span><span class=\"sh\">'<\/span><span class=\"s\">name<\/span><span class=\"sh\">'<\/span><span class=\"p\">],<\/span> <span class=\"n\">value<\/span><span class=\"o\">=<\/span><span class=\"n\">widget_data<\/span><span class=\"p\">[<\/span><span class=\"sh\">'<\/span><span class=\"s\">value<\/span><span class=\"sh\">'<\/span><span class=\"p\">],<\/span> <span class=\"n\">attrs<\/span><span class=\"o\">=<\/span><span class=\"n\">widget_data<\/span><span class=\"p\">[<\/span><span class=\"sh\">'<\/span><span class=\"s\">attrs<\/span><span class=\"sh\">'<\/span><span class=\"p\">]))<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"nf\">mark_safe<\/span><span class=\"p\">(<\/span><span class=\"sa\">f<\/span><span class=\"sh\">\"<\/span><span class=\"s\">&lt;div style=<\/span><span class=\"sh\">'<\/span><span class=\"s\">display:flex; align-items: center;<\/span><span class=\"sh\">'<\/span><span class=\"s\">&gt;<\/span><span class=\"si\">{<\/span><span class=\"n\">rendered_widgets<\/span><span class=\"p\">[<\/span><span class=\"mi\">0<\/span><span class=\"p\">]<\/span><span class=\"si\">}<\/span><span class=\"s\">&lt;span style=<\/span><span class=\"sh\">'<\/span><span class=\"s\">margin: 0 5px;<\/span><span class=\"sh\">'<\/span><span class=\"s\">&gt; - &lt;\/span&gt;<\/span><span class=\"si\">{<\/span><span class=\"n\">rendered_widgets<\/span><span class=\"p\">[<\/span><span class=\"mi\">1<\/span><span class=\"p\">]<\/span><span class=\"si\">}<\/span><span class=\"s\">&lt;span style=<\/span><span class=\"sh\">'<\/span><span class=\"s\">margin: 0 5px;<\/span><span class=\"sh\">'<\/span><span class=\"s\">&gt; - &lt;\/span&gt;<\/span><span class=\"si\">{<\/span><span class=\"n\">rendered_widgets<\/span><span class=\"p\">[<\/span><span class=\"mi\">2<\/span><span class=\"p\">]<\/span><span class=\"si\">}<\/span><span class=\"s\">&lt;\/div&gt;<\/span><span class=\"sh\">\"<\/span><span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">class<\/span> <span class=\"nc\">PhoneNumberField<\/span><span class=\"p\">(<\/span><span class=\"n\">MultiValueField<\/span><span class=\"p\">):<\/span>\r\n    <span class=\"n\">widget<\/span> <span class=\"o\">=<\/span> <span class=\"n\">PhoneNumberWidget<\/span>\r\n\r\n    <span class=\"k\">def<\/span> <span class=\"nf\">__init__<\/span><span class=\"p\">(<\/span><span class=\"n\">self<\/span><span class=\"p\">,<\/span> <span class=\"o\">*<\/span><span class=\"n\">args<\/span><span class=\"p\">,<\/span> <span class=\"o\">**<\/span><span class=\"n\">kwargs<\/span><span class=\"p\">):<\/span>\r\n        <span class=\"n\">fields<\/span> <span class=\"o\">=<\/span> <span class=\"p\">(<\/span>\r\n            <span class=\"nc\">CharField<\/span><span class=\"p\">(<\/span><span class=\"n\">validators<\/span><span class=\"o\">=<\/span><span class=\"p\">[<\/span><span class=\"n\">validate_integer<\/span><span class=\"p\">,<\/span>\r\n                                  <span class=\"nc\">MinLengthValidator<\/span><span class=\"p\">(<\/span><span class=\"mi\">2<\/span><span class=\"p\">,<\/span> <span class=\"sh\">'<\/span><span class=\"s\">\u96fb\u8a71\u756a\u53f7\uff11(\u5e02\u5916\u5c40\u756a)\u306f\u6700\u4f4e2\u6841\u3067\u3059\u3002<\/span><span class=\"sh\">'<\/span><span class=\"p\">),<\/span>\r\n                                  <span class=\"nc\">MaxLengthValidator<\/span><span class=\"p\">(<\/span><span class=\"mi\">3<\/span><span class=\"p\">,<\/span> <span class=\"sh\">'<\/span><span class=\"s\">\u96fb\u8a71\u756a\u53f7\uff11(\u5e02\u5916\u5c40\u756a)\u306f\u6700\u59273\u6841\u3067\u3059\u3002<\/span><span class=\"sh\">'<\/span><span class=\"p\">)]),<\/span>\r\n            <span class=\"nc\">CharField<\/span><span class=\"p\">(<\/span><span class=\"n\">validators<\/span><span class=\"o\">=<\/span><span class=\"p\">[<\/span><span class=\"n\">validate_integer<\/span><span class=\"p\">,<\/span>\r\n                                  <span class=\"nc\">MinLengthValidator<\/span><span class=\"p\">(<\/span><span class=\"mi\">1<\/span><span class=\"p\">,<\/span> <span class=\"sh\">'<\/span><span class=\"s\">\u96fb\u8a71\u756a\u53f7\uff12\uff08\u5e02\u5185\u5c40\u756a\uff09\u306f\u6700\u4f4e1\u6841\u3067\u3059\u3002<\/span><span class=\"sh\">'<\/span><span class=\"p\">),<\/span>\r\n                                  <span class=\"nc\">MaxLengthValidator<\/span><span class=\"p\">(<\/span><span class=\"mi\">4<\/span><span class=\"p\">,<\/span> <span class=\"sh\">'<\/span><span class=\"s\">\u96fb\u8a71\u756a\u53f7\uff12\uff08\u5e02\u5185\u5c40\u756a\uff09\u306f\u6700\u59274\u6841\u3067\u3059\u3002<\/span><span class=\"sh\">'<\/span><span class=\"p\">)]),<\/span>\r\n            <span class=\"nc\">CharField<\/span><span class=\"p\">(<\/span><span class=\"n\">validators<\/span><span class=\"o\">=<\/span><span class=\"p\">[<\/span><span class=\"n\">validate_integer<\/span><span class=\"p\">,<\/span>\r\n                                  <span class=\"nc\">MinLengthValidator<\/span><span class=\"p\">(<\/span><span class=\"mi\">4<\/span><span class=\"p\">,<\/span> <span class=\"sh\">'<\/span><span class=\"s\">\u96fb\u8a71\u756a\u53f7\uff13\uff08\u52a0\u5165\u8005\u756a\u53f7\uff09\u306f4\u6841\u3067\u3059\u3002<\/span><span class=\"sh\">'<\/span><span class=\"p\">),<\/span>\r\n                                  <span class=\"nc\">MaxLengthValidator<\/span><span class=\"p\">(<\/span><span class=\"mi\">4<\/span><span class=\"p\">,<\/span> <span class=\"sh\">'<\/span><span class=\"s\">\u96fb\u8a71\u756a\u53f7\uff13\uff08\u52a0\u5165\u8005\u756a\u53f7\uff09\u306f4\u6841\u3067\u3059\u3002<\/span><span class=\"sh\">'<\/span><span class=\"p\">)]),<\/span>\r\n        <span class=\"p\">)<\/span>\r\n        <span class=\"nf\">super<\/span><span class=\"p\">().<\/span><span class=\"nf\">__init__<\/span><span class=\"p\">(<\/span><span class=\"n\">fields<\/span><span class=\"p\">,<\/span> <span class=\"o\">*<\/span><span class=\"n\">args<\/span><span class=\"p\">,<\/span> <span class=\"o\">**<\/span><span class=\"n\">kwargs<\/span><span class=\"p\">)<\/span>\r\n\r\n    <span class=\"k\">def<\/span> <span class=\"nf\">compress<\/span><span class=\"p\">(<\/span><span class=\"n\">self<\/span><span class=\"p\">,<\/span> <span class=\"n\">data_list<\/span><span class=\"p\">):<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"n\">data_list<\/span><span class=\"p\">:<\/span>\r\n            <span class=\"k\">return<\/span> <span class=\"sh\">'<\/span><span class=\"s\">-<\/span><span class=\"sh\">'<\/span><span class=\"p\">.<\/span><span class=\"nf\">join<\/span><span class=\"p\">(<\/span><span class=\"n\">data_list<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"sh\">''<\/span>\r\n<\/code><\/pre>\n<h2>\u8bf7\u6ce8\u610f<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30b3\u30d4\u30da\u3057\u3066\u4f7f\u3063\u3066\u30d0\u30b0\u3063\u3066\u3082\u8cac\u4efb\u3092\u8ca0\u3044\u304b\u306d\u307e\u3059?\u200d\u2642<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">bootstrap5\u3092\u4f7f\u3063\u3066\u958b\u767a\u3057\u3066\u3044\u308b\u90fd\u5408\u4e0a\u3001\u30d5\u30a9\u30fc\u30e0\u306bform-control\u30af\u30e9\u30b9\u3092\u3044\u308c\u3066\u3044\u307e\u3059<\/ul>\n<h1>\u4ee5\u4e0b\u5185\u5bb9<\/h1>\n<p>\u5c06\u7535\u8bdd\u53f7\u7801\u8868\u5355\u5206\u6210\u4e09\u90e8\u5206\u7684\u89c4\u8303\u672c\u8eab\u662f\u5426\u662f\u4e00\u79cd\u53cd\u4f8b\u5462\uff1f<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6211\u60f3\u5728Django\u4e2d\u521b\u5efa\u4e00\u4e2a\u7535\u8bdd\u53f7\u7801\u4ee5\u4e09\u4e2a\u6570\u5b57\u5206\u9694\u7684\u8868\u5355\uff01 \u2193 \u54ce\u5440\uff0cDjango\u7684\u6807\u51c6\u5e93\u91cc\u6ca1\u6709\u63d0\u4f9b\u8fd9\u4e2a\u529f\u80fd\u5417 [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-49400","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>[Django] \u521b\u5efa\u4e86\u4e00\u4e2a\u5c06\u7535\u8bdd\u53f7\u7801\u5206\u4e3a\u4e09\u90e8\u5206\u7684\u8868\u5355 - 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\" 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