{"id":49281,"date":"2023-11-05T23:07:12","date_gmt":"2023-09-20T15:53:39","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e8%bf%99%e6%98%afdjango%e4%b8%addjango-filter%e7%9a%84%e7%94%a8%e6%b3%95%ef%bc%88%e7%ac%ac%e4%ba%8c%e9%83%a8%e5%88%86%ef%bc%8c%e7%b1%bb%e8%a7%86%e5%9b%be%e7%af%87%ef%bc%89\/"},"modified":"2024-05-04T07:44:27","modified_gmt":"2024-05-03T23:44:27","slug":"%e8%bf%99%e6%98%afdjango%e4%b8%addjango-filter%e7%9a%84%e7%94%a8%e6%b3%95%ef%bc%88%e7%ac%ac%e4%ba%8c%e9%83%a8%e5%88%86%ef%bc%8c%e7%b1%bb%e8%a7%86%e5%9b%be%e7%af%87%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e8%bf%99%e6%98%afdjango%e4%b8%addjango-filter%e7%9a%84%e7%94%a8%e6%b3%95%ef%bc%88%e7%ac%ac%e4%ba%8c%e9%83%a8%e5%88%86%ef%bc%8c%e7%b1%bb%e8%a7%86%e5%9b%be%e7%af%87%ef%bc%89\/","title":{"rendered":"\u8fd9\u662fDjango\u4e2ddjango-filter\u7684\u7528\u6cd5\uff08\u7b2c\u4e8c\u90e8\u5206\uff0c\u7c7b\u89c6\u56fe\u7bc7\uff09"},"content":{"rendered":"<h2>\u9996\u5148<\/h2>\n<p>\u6211\u60f3\u4ee5Django-filter\u7684\u516c\u5f0f\u7f51\u9875\u4e0a\u6700\u7b80\u5355\u7684\u4f8b\u5b50\u4e3a\u53c2\u8003\uff0c\u5411\u521d\u5b66\u8005\u62a5\u544a\u5b83\u7684\u5de5\u4f5c\u539f\u7406\u3002\u8fd9\u7bc7\u62a5\u544a\u4e3b\u8981\u5305\u542b\u4e24\u4e2a\u90e8\u5206\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u95a2\u6570\u30d3\u30e5\u30fc\u3067\u306e\u4f5c\u308a\u65b9<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u30af\u30e9\u30b9\u30d3\u30e5\u30fc\u3067\u306e\u4f5c\u308a\u65b9<\/ul>\n<p>\u5728\u8fd9\uff08\u7b2c\u4e8c\u4e2a\uff09\u90e8\u5206\u4e2d\uff0c\u6211\u4eec\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528\u540e\u8005\u7684\u7c7b\u89c6\u56fe\u8fdb\u884c\u6784\u5efa\u3002<\/p>\n<p>\u8bf7\u53c2\u8003django-filter\u7684\u5b89\u88c5\u548c\u6a21\u578b\u521b\u5efa\u6b65\u9aa4\uff0c\u65b9\u6cd5\u548c\u300adjango-filter\u4f7f\u7528\u6307\u5357\uff08\u7b2c\u4e00\u90e8\u5206\uff0c\u51fd\u6570\u89c6\u56fe\u7bc7\uff09\u300b\u76f8\u540c\u3002\u5982\u679c\u5bf9\u51fd\u6570\u89c6\u56fe\u7684\u521b\u5efa\u65b9\u5f0f\u6709\u7591\u60d1\uff08\u6211\u4e5f\u6709\u8fc7\uff09\uff0c\u53ef\u80fd\u6700\u597d\u5206\u79bb\u9879\u76ee\u3002\u987a\u4fbf\u63d0\u4e00\u4e0b\uff0c\u6211\u7684\u73af\u5883\u662f&#8230;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">python 3.8.6<\/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\">django 4.1.7<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">django-filter 23.1<\/ul>\n<p>\u5b98\u65b9\u7f51\u9875\uff1ahttps:\/\/django-filter.readthedocs.io\/en\/stable\/<\/p>\n<p>\u4e0d\u518d\u5570\u55e6\uff0c\u6211\u4eec\u4ece\u8def\u7531\u5f00\u59cb\u3002<\/p>\n<h2>\u8def\u7531\uff08\u7c7b\u89c6\u56fe\uff09<\/h2>\n<p>\u5728\u6211\u7684\u5e94\u7528\u7a0b\u5e8f\uff08myapp\uff09\u4e2d\u521b\u5efa\u4e00\u4e2a urls.py \u6587\u4ef6\uff0c\u5e76\u5199\u5165\u4ee5\u4e0b\u5185\u5bb9\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">from<\/span> <span class=\"n\">django.urls<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">path<\/span>\r\n<span class=\"kn\">from<\/span> <span class=\"n\">.<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">views<\/span>\r\n<span class=\"kn\">from<\/span> <span class=\"n\">myapp.models<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">Product<\/span>\r\n\r\n<span class=\"n\">urlpatterns<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[<\/span>\r\n    <span class=\"nf\">path<\/span><span class=\"p\">(<\/span><span class=\"sh\">\"\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">views<\/span><span class=\"p\">.<\/span><span class=\"n\">FilterView<\/span><span class=\"p\">.<\/span><span class=\"nf\">as_view<\/span><span class=\"p\">(<\/span><span class=\"n\">model<\/span><span class=\"o\">=<\/span><span class=\"n\">Product<\/span><span class=\"p\">),<\/span> <span class=\"n\">name<\/span><span class=\"o\">=<\/span><span class=\"sh\">\"<\/span><span class=\"s\">product_list<\/span><span class=\"sh\">\"<\/span><span class=\"p\">),<\/span>\r\n<span class=\"p\">]<\/span>\r\n<\/code><\/pre>\n<p>\u901a\u5e38\u7684\u7c7b\u89c6\u56fe\u4e0e\u4f7f\u7528 as_view() \u76f8\u540c\u3002\u5728\u8fd9\u91cc\uff0cFilterView \u662f\u7ee7\u627f\u81ea ListView \u7684\u5f62\u5f0f\u3002\u6b64\u5916\uff0c\u5b98\u65b9\u9875\u9762\u4e0a\u5199\u7740\uff0cas_view() \u7684\u53c2\u6570\u5e94\u6307\u5b9a\u8981\u4f7f\u7528\u7684\u8fc7\u6ee4\u6a21\u578b\uff08\u5728\u8fd9\u91cc\u662f Product\uff09\u3002 \u203b\u5b98\u65b9\u9875\u9762\u4e0a\u6709\u5199from django_filters.views import FilterView\uff0c\u4f46\u8fd9\u6837\u505a\u4e0d\u8d77\u4f5c\u7528\u3002<\/p>\n<p>\u6211\u4e5f\u4f1a\u4fee\u6539\u9879\u76ee\u4e2d\u7684urls.py\u6587\u4ef6\uff0c\u8fd9\u4e0e\u51fd\u6570\u89c6\u56fe\u76f8\u540c\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">from<\/span> <span class=\"n\">django.contrib<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">admin<\/span>\r\n<span class=\"kn\">from<\/span> <span class=\"n\">django.urls<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">path<\/span><span class=\"p\">,<\/span><span class=\"n\">include<\/span>\r\n\r\n<span class=\"n\">urlpatterns<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[<\/span>\r\n    <span class=\"nf\">path<\/span><span class=\"p\">(<\/span><span class=\"sh\">'<\/span><span class=\"s\">admin\/<\/span><span class=\"sh\">'<\/span><span class=\"p\">,<\/span> <span class=\"n\">admin<\/span><span class=\"p\">.<\/span><span class=\"n\">site<\/span><span class=\"p\">.<\/span><span class=\"n\">urls<\/span><span class=\"p\">),<\/span>\r\n    <span class=\"nf\">path<\/span><span class=\"p\">(<\/span><span class=\"sh\">''<\/span><span class=\"p\">,<\/span><span class=\"nf\">include<\/span><span class=\"p\">(<\/span><span class=\"sh\">'<\/span><span class=\"s\">myapp.urls<\/span><span class=\"sh\">'<\/span><span class=\"p\">)),<\/span>\r\n<span class=\"p\">]<\/span>\r\n<\/code><\/pre>\n<h2>\u521b\u5efa\u8fc7\u6ee4\u5668\u5b9a\u4e49\u6587\u4ef6\uff08filters.py\uff09\u3002<\/h2>\n<p>\u63a5\u4e0b\u6765\uff0c\u5728\u6211\u7684\u5e94\u7528\u7a0b\u5e8f(myapp)\u4e2d\uff0c\u521b\u5efa\u4e00\u4e2a\u540d\u4e3afilters.py\u7684\u5176\u4ed6\u6587\u4ef6\u3002<br \/>\n\u8fd9\u4e2a\u6587\u4ef6\u4e0e\u51fd\u6570\u89c6\u56fe\u76f8\u540c\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">import<\/span> <span class=\"n\">django_filters<\/span>\r\n<span class=\"kn\">from<\/span> <span class=\"n\">.models<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">Product<\/span> \r\n\r\n<span class=\"k\">class<\/span> <span class=\"nc\">ProductFilter<\/span><span class=\"p\">(<\/span><span class=\"n\">django_filters<\/span><span class=\"p\">.<\/span><span class=\"n\">FilterSet<\/span><span class=\"p\">):<\/span>\r\n    <span class=\"n\">name<\/span> <span class=\"o\">=<\/span> <span class=\"n\">django_filters<\/span><span class=\"p\">.<\/span><span class=\"nc\">CharFilter<\/span><span class=\"p\">(<\/span><span class=\"n\">lookup_expr<\/span><span class=\"o\">=<\/span><span class=\"sh\">'<\/span><span class=\"s\">iexact<\/span><span class=\"sh\">'<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">class<\/span> <span class=\"nc\">Meta<\/span><span class=\"p\">:<\/span>\r\n        <span class=\"n\">model<\/span> <span class=\"o\">=<\/span> <span class=\"n\">Product<\/span>\r\n        <span class=\"n\">fields<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[<\/span><span class=\"sh\">'<\/span><span class=\"s\">price<\/span><span class=\"sh\">'<\/span><span class=\"p\">,<\/span> <span class=\"sh\">'<\/span><span class=\"s\">release_date<\/span><span class=\"sh\">'<\/span><span class=\"p\">]<\/span>\r\n<\/code><\/pre>\n<h2>views.py\u4e2d ClassView \u7684\u5b9a\u4e49<\/h2>\n<p>\u5728views.py\u4e2d\u5b9a\u4e49\u4e86\u4e00\u4e2a\u7528\u4e8e\u663e\u793a\u4ea7\u54c1\u5217\u8868\uff08product_list\uff09\u7684\u7c7b\u89c6\u56fe\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">from<\/span> <span class=\"n\">django.views.generic<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">ListView<\/span>\r\n<span class=\"kn\">from<\/span> <span class=\"n\">.filters<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">ProductFilter<\/span>\r\n\r\n<span class=\"k\">class<\/span> <span class=\"nc\">FilterView<\/span><span class=\"p\">(<\/span><span class=\"n\">ListView<\/span><span class=\"p\">):<\/span>\r\n    <span class=\"n\">template_name<\/span> <span class=\"o\">=<\/span> <span class=\"sh\">'<\/span><span class=\"s\">product_list.html<\/span><span class=\"sh\">'<\/span>\r\n    \r\n    <span class=\"k\">def<\/span> <span class=\"nf\">get_context_data<\/span><span class=\"p\">(<\/span><span class=\"n\">self<\/span><span class=\"p\">,<\/span> <span class=\"o\">**<\/span><span class=\"n\">kwargs<\/span><span class=\"p\">):<\/span>\r\n        <span class=\"n\">context<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">super<\/span><span class=\"p\">().<\/span><span class=\"nf\">get_context_data<\/span><span class=\"p\">(<\/span><span class=\"o\">**<\/span><span class=\"n\">kwargs<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"n\">context<\/span><span class=\"p\">[<\/span><span class=\"sh\">\"<\/span><span class=\"s\">filter<\/span><span class=\"sh\">\"<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">ProductFilter<\/span><span class=\"p\">(<\/span><span class=\"n\">self<\/span><span class=\"p\">.<\/span><span class=\"n\">request<\/span><span class=\"p\">.<\/span><span class=\"n\">GET<\/span><span class=\"p\">,<\/span>\r\n                <span class=\"n\">queryset<\/span><span class=\"o\">=<\/span><span class=\"n\">self<\/span><span class=\"p\">.<\/span><span class=\"nf\">get_queryset<\/span><span class=\"p\">())<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">context<\/span>\r\n<\/code><\/pre>\n<p>\u5f53\u7136\uff0cFilterView\u4e0e\u51fd\u6570\u89c6\u56fe\u6709\u5f88\u5927\u7684\u533a\u522b\u3002FilterView\u7ee7\u627f\u4e86ListView\u3002\u6b64\u5916\uff0c\u901a\u8fc7get_context_data()\u51fd\u6570\uff0c\u63a5\u6536\u641c\u7d22\u5173\u952e\u8bcd\u53c2\u6570\uff0c\u5e76\u901a\u8fc7ProductFilter\u5728\u4e0a\u4e0b\u6587\u4e2d\u8986\u76d6\u4e86&#8221;filter&#8221;\u3002\u7136\u800c&#8230;\u5728\u4efb\u4f55\u5730\u65b9\u90fd\u627e\u4e0d\u5230\u7b5b\u9009\u6570\u636e\u7684filter()\u65b9\u6cd5\uff01<\/p>\n<p>\u5728\u8fd9\u91cc\uff0c\u6211\u5c1d\u8bd5\u4ee5\u4ecedjango_filters.views\u5bfc\u5165FilterView\u7684\u5f62\u5f0f\u7ee7\u627fFilterView\uff0c\u4f46\u662f\u6ca1\u6709\u6210\u529f\u3002<\/p>\n<h2>\u521b\u5efa\u6a21\u677f\u6587\u4ef6\uff08product_list.html\uff09\u3002<\/h2>\n<p>\u5728\u6211\u7684\u5e94\u7528\u7a0b\u5e8f\uff08myapp\uff09\u4e2d\u521b\u5efa\u4e00\u4e2a\u540d\u4e3atemplates\/myapp\u7684\u76ee\u5f55\uff0c\u5e76\u521b\u5efa\u4e00\u4e2a\u540d\u4e3aproduct_list.html\u7684\u6587\u4ef6\u3002\u5185\u5bb9\u4e0e\u51fd\u6570\u89c6\u56fe\u76f8\u540c\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"cp\">&lt;!DOCTYPE html&gt;<\/span>\r\n<span class=\"nt\">&lt;html&gt;<\/span>\r\n<span class=\"nt\">&lt;head&gt;<\/span>\r\n    <span class=\"nt\">&lt;meta<\/span> <span class=\"na\">charset=<\/span><span class=\"s\">\"utf-8\"<\/span><span class=\"nt\">&gt;<\/span>\r\n    <span class=\"nt\">&lt;title&gt;<\/span>\u88fd\u54c1\u4e00\u89a7<span class=\"nt\">&lt;\/title&gt;<\/span>\r\n<span class=\"nt\">&lt;\/head&gt;<\/span>\r\n<span class=\"nt\">&lt;body&gt;<\/span>\r\n    <span class=\"nt\">&lt;form<\/span> <span class=\"na\">method=<\/span><span class=\"s\">\"get\"<\/span><span class=\"nt\">&gt;<\/span>\r\n        {% csrf_token %}\r\n        {{ filter.form.as_p }}\r\n        <span class=\"nt\">&lt;input<\/span> <span class=\"na\">type=<\/span><span class=\"s\">\"submit\"<\/span> <span class=\"nt\">\/&gt;<\/span>\r\n    <span class=\"nt\">&lt;\/form&gt;<\/span>\r\n    {% for obj in filter.qs %}\r\n        {{ obj.name }} - ${{ obj.price }} {{ obj.release_date }}<span class=\"nt\">&lt;br<\/span> <span class=\"nt\">\/&gt;<\/span>\r\n    {% endfor %}\r\n<span class=\"nt\">&lt;\/html&gt;<\/span>\r\n<\/code><\/pre>\n<p>\u7136\u540e\uff0c\u50cf\u5f80\u5e38\u4e00\u6837\uff0c<\/p>\n<pre class=\"post-pre\"><code>python manage.py runserver\r\n<\/code><\/pre>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d8a8c913a08637a6ca795\/27-1.jpeg\" alt=\"django-filter3.jpg\" \/><\/div>\n<h2>\u6700\u540e<\/h2>\n<p>\u6211\u4e4b\u524d\u5728\u51fd\u6570\u89c6\u56fe\u548c\u7c7b\u89c6\u56fe\u4e2d\u4ecb\u7ecd\u4e86django-filter\u7684\u4f7f\u7528\u65b9\u6cd5\u3002<br \/>\n\u6211\u65e0\u6cd5\u6210\u529f\u5b9e\u73b0\u57fa\u4e8edjango-filter\u7684\u641c\u7d22\u529f\u80fd\u7684\u539f\u56e0\u662f\uff0c<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u901a\u5e38\u306eforms.py \u3084 objects.filter \u3092\u4f7f\u3046\u65b9\u6cd5\u3068\u6df7\u540c\u3059\u308b<\/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\">django-filter \u306e\u4e2d\u3067\u3082\u95a2\u6570\u30d3\u30e5\u30fc\u306e\u5b9f\u88c5\u3068\u30af\u30e9\u30b9\u30d3\u30e5\u30fc\u306e\u5b9f\u88c5\u3068\u6df7\u540c\u3059\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u57fa\u672c\u3092\u7406\u89e3\u305b\u305a\u3001\u3044\u304d\u306a\u308aDB\u304b\u3089\u52d5\u7684\u306b\u53d6\u5f97\u3059\u308b choisefield \u306b\u6311\u6226\u3057\u3066\u6483\u6c88<\/ul>\n<p>\u8fd9\u4e2a\u4f4d\u7f6e\u662f\u8fd9\u6837\u7684\u3002 Django\u6846\u67b6\u6574\u4f53\u800c\u8a00\u90fd\u662f\u5982\u6b64\uff0c\u521d\u5b66\u8005\u7a0d\u5fae\u504f\u79bb\u4e00\u70b9\u5c31\u4f1a\u9677\u5165\u9519\u8bef\u5730\u72f1\u800c\u653e\u5f03\u3002\u6211\u8ba4\u4e3a\u8fd9\u662f\u56e0\u4e3a\u4ed6\u4eec\u6ca1\u6709\u638c\u63e1\u5927\u4f53\u7684\u65b9\u5411\u3002<br \/>\n\u5982\u679c\u8fd9\u7bc7\u6587\u7ae0\u5bf9\u90a3\u4e9b\u89c9\u5f97\u201c\u5b9e\u73b0\u641c\u7d22\u529f\u80fd\u5f88\u9ebb\u70e6\u548c\u70e6\u4eba\u201d\u7684\u4eba\u80fd\u6709\u4e00\u70b9\u5e2e\u52a9\u7684\u8bdd\uff0c\u6211\u4f1a\u5f88\u5f00\u5fc3\u7684\u3002\u6bd5\u7adf\uff0c\u7f16\u7a0b\u4e5f\u662f\u4ece\u5c0f\u5c0f\u7684\u6210\u529f\u4f53\u9a8c\u5f00\u59cb\u7684\u3002<br \/>\n\u53e6\u5916\uff0c\u5982\u679c\u4f60\u80fd\u6307\u51fa\u4e0d\u8db3\u4e4b\u5904\uff0c\u6211\u5c06\u4e0d\u80dc\u611f\u6fc0\u3002\u6bd5\u7adf\uff0c\u6211\u4e5f\u662f\u4e2a\u521d\u5b66\u8005\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9996\u5148 \u6211\u60f3\u4ee5Django-filter\u7684\u516c\u5f0f\u7f51\u9875\u4e0a\u6700\u7b80\u5355\u7684\u4f8b\u5b50\u4e3a\u53c2\u8003\uff0c\u5411\u521d\u5b66\u8005\u62a5\u544a\u5b83\u7684\u5de5\u4f5c\u539f\u7406\u3002\u8fd9\u7bc7\u62a5\u544a\u4e3b\u8981\u5305 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