{"id":4720,"date":"2025-01-28T21:22:33","date_gmt":"2025-01-28T12:22:33","guid":{"rendered":"https:\/\/secondlife.lol\/?p=4720"},"modified":"2025-01-30T20:56:23","modified_gmt":"2025-01-30T11:56:23","slug":"django-models-advanced-techniques","status":"publish","type":"post","link":"https:\/\/secondlife.lol\/zh\/django-models-advanced-techniques\/","title":{"rendered":"\u6df1\u5165\u4e86\u89e3 Django \u6a21\u578b\uff1a\u638c\u63e1\u9ad8\u7ea7\u529f\u80fd\u548c\u5b9e\u9645\u7528\u9014"},"content":{"rendered":"<style>.kb-image4720_9f6097-22 .kb-image-has-overlay:after{opacity:0.3;border-top-left-radius:5px;border-top-right-radius:5px;border-bottom-right-radius:5px;border-bottom-left-radius:5px;}.kb-image4720_9f6097-22 img.kb-img, .kb-image4720_9f6097-22 .kb-img img{border-top-left-radius:5px;border-top-right-radius:5px;border-bottom-right-radius:5px;border-bottom-left-radius:5px;box-shadow:0px 0px 14px 0px rgba(0, 0, 0, 0.2);}<\/style>\n<div class=\"wp-block-kadence-image kb-image4720_9f6097-22\"><figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"878\" height=\"233\" src=\"https:\/\/secondlife.lol\/wp-content\/uploads\/2025\/01\/image-16-1.jpg\" alt=\"Django Models \uc2ec\ud654 \uae30\ub2a5 \ucc38\uace0 \uc774\ubbf8\uc9c01\" class=\"kb-img wp-image-4737\" srcset=\"https:\/\/secondlife.lol\/wp-content\/uploads\/2025\/01\/image-16-1.jpg 878w, https:\/\/secondlife.lol\/wp-content\/uploads\/2025\/01\/image-16-1-300x80.jpg 300w, https:\/\/secondlife.lol\/wp-content\/uploads\/2025\/01\/image-16-1-600x159.jpg 600w, https:\/\/secondlife.lol\/wp-content\/uploads\/2025\/01\/image-16-1-768x204.jpg 768w, https:\/\/secondlife.lol\/wp-content\/uploads\/2025\/01\/image-16-1-18x5.jpg 18w\" sizes=\"(max-width: 878px) 100vw, 878px\" \/><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u5927\u5bb6\u597d <a href=\"https:\/\/secondlife.lol\/zh\/django-models-basics-database-structure-guide\/\" data-type=\"post\" data-id=\"4687\">Django \u6a21\u578b\u57fa\u7840<\/a>\u548c\u6211\u4eec\u4e00\u8d77\u6df1\u5165\u5b66\u4e60\u3002\u5982\u679c\u4f60\u7528\u8fc7 Django\uff0c\u4f60\u5c31\u4f1a\u77e5\u9053\u6a21\u578b\u6709\u591a\u4e48\u5f3a\u5927\uff0c\u4f46\u4eca\u5929\u6211\u4eec\u8981\u6df1\u5165\u57fa\u7840\u77e5\u8bc6\u3001 <a href=\"https:\/\/www.djangoproject.com\/\" target=\"_blank\" rel=\"noopener\">Django<\/a> \u6211\u4eec\u5c06\u63a2\u7d22\u6a21\u578b\u7684\u6df1\u5ea6\u529f\u80fd\u3002 <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5229\u7528\u81ea\u5b9a\u4e49\u7ba1\u7406\u5668\u3001\u62bd\u8c61\u6a21\u578b\u548c\u591a\u4e2a\u6570\u636e\u5e93<\/strong> \u9605\u8bfb\u5b8c\u8fd9\u7bc7\u6587\u7ae0\u540e\uff0c\u60a8\u5c31\u80fd\u638c\u63e1 Django \u6a21\u578b\u4e86\uff01<\/p>\n\n\n<style>.kb-table-of-content-nav.kb-table-of-content-id83_5f28a6-34 .kb-table-of-content-wrap{padding-top:var(--global-kb-spacing-sm, 1.5rem);padding-right:var(--global-kb-spacing-sm, 1.5rem);padding-bottom:var(--global-kb-spacing-sm, 1.5rem);padding-left:var(--global-kb-spacing-sm, 1.5rem);border-top:3px solid var(--global-palette2, #2B6CB0);border-right:3px solid var(--global-palette2, #2B6CB0);border-bottom:3px solid var(--global-palette2, #2B6CB0);border-left:3px solid var(--global-palette2, #2B6CB0);border-top-left-radius:5px;border-top-right-radius:5px;border-bottom-right-radius:5px;border-bottom-left-radius:5px;box-shadow:0px 0px 14px 0px rgba(0, 0, 0, 0.2);}.kb-table-of-content-nav.kb-table-of-content-id83_5f28a6-34 .kb-table-of-contents-title-wrap{padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.kb-table-of-content-nav.kb-table-of-content-id83_5f28a6-34 .kb-table-of-contents-title-wrap{color:var(--global-palette2, #2B6CB0);}.kb-table-of-content-nav.kb-table-of-content-id83_5f28a6-34 .kb-table-of-contents-title{color:var(--global-palette2, #2B6CB0);font-size:28px;font-weight:regular;font-style:normal;}.kb-table-of-content-nav.kb-table-of-content-id83_5f28a6-34 .kb-table-of-content-wrap .kb-table-of-content-list{color:var(--global-palette1, #3182CE);line-height:2em;font-weight:regular;font-style:normal;margin-top:var(--global-kb-spacing-sm, 1.5rem);margin-right:0px;margin-bottom:0px;margin-left:0px;}.kb-table-of-content-nav.kb-table-of-content-id83_5f28a6-34 .kb-table-of-content-wrap .kb-table-of-content-list .kb-table-of-contents__entry:hover{color:var(--global-palette6, #718096);}@media all and (max-width: 1024px){.kb-table-of-content-nav.kb-table-of-content-id83_5f28a6-34 .kb-table-of-content-wrap{border-top:3px solid var(--global-palette2, #2B6CB0);border-right:3px solid var(--global-palette2, #2B6CB0);border-bottom:3px solid var(--global-palette2, #2B6CB0);border-left:3px solid var(--global-palette2, #2B6CB0);}}@media all and (max-width: 1024px){.kb-table-of-content-nav.kb-table-of-content-id83_5f28a6-34 .kb-table-of-contents-title{font-size:28px;}}@media all and (max-width: 767px){.kb-table-of-content-nav.kb-table-of-content-id83_5f28a6-34 .kb-table-of-content-wrap{border-top:3px solid var(--global-palette2, #2B6CB0);border-right:3px solid var(--global-palette2, #2B6CB0);border-bottom:3px solid var(--global-palette2, #2B6CB0);border-left:3px solid var(--global-palette2, #2B6CB0);}.kb-table-of-content-nav.kb-table-of-content-id83_5f28a6-34 .kb-table-of-contents-title{font-size:28px;}}<\/style>\n\n<style>.kb-image4720_daa7f7-54 .kb-image-has-overlay:after{opacity:0.3;border-top-left-radius:5px;border-top-right-radius:5px;border-bottom-right-radius:5px;border-bottom-left-radius:5px;}.kb-image4720_daa7f7-54 img.kb-img, .kb-image4720_daa7f7-54 .kb-img img{border-top-left-radius:5px;border-top-right-radius:5px;border-bottom-right-radius:5px;border-bottom-left-radius:5px;box-shadow:0px 0px 14px 0px rgba(0, 0, 0, 0.2);}<\/style>\n<div class=\"wp-block-kadence-image kb-image4720_daa7f7-54\"><figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"886\" height=\"259\" src=\"https:\/\/secondlife.lol\/wp-content\/uploads\/2025\/01\/image-16-3.jpg\" alt=\"Django Models \uc2ec\ud654 \uae30\ub2a5 \ucc38\uace0 \uc774\ubbf8\uc9c01\" class=\"kb-img wp-image-4741\" srcset=\"https:\/\/secondlife.lol\/wp-content\/uploads\/2025\/01\/image-16-3.jpg 886w, https:\/\/secondlife.lol\/wp-content\/uploads\/2025\/01\/image-16-3-300x88.jpg 300w, https:\/\/secondlife.lol\/wp-content\/uploads\/2025\/01\/image-16-3-600x175.jpg 600w, https:\/\/secondlife.lol\/wp-content\/uploads\/2025\/01\/image-16-3-768x225.jpg 768w, https:\/\/secondlife.lol\/wp-content\/uploads\/2025\/01\/image-16-3-18x5.jpg 18w\" sizes=\"(max-width: 886px) 100vw, 886px\" \/><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">1. Django \u6a21\u578b\u6df1\u5ea6\uff1a\u81ea\u5b9a\u4e49\u7ba1\u7406\u5668<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u9664\u4e86 Django \u9ed8\u8ba4\u63d0\u4f9b\u7684\u7ba1\u7406\u5668\u5916\uff0c\u81ea\u5b9a\u4e49\u7ba1\u7406\u5668\u8fd8\u80fd\u8ba9\u60a8\u66f4\u7075\u6d3b\u5730\u68c0\u7d22\u6570\u636e\u3002\u4f8b\u5982\uff0c\u8ba9\u6211\u4eec\u521b\u5efa\u4e00\u4e2a\u53ea\u68c0\u7d22\u6ee1\u8db3\u7279\u5b9a\u6761\u4ef6\u7684\u6570\u636e\u7684\u7ba1\u7406\u5668\u3002<\/p>\n\n\n<style>.kb-image4720_c844c1-be .kb-image-has-overlay:after{opacity:0.3;border-top-left-radius:5px;border-top-right-radius:5px;border-bottom-right-radius:5px;border-bottom-left-radius:5px;}.kb-image4720_c844c1-be img.kb-img, .kb-image4720_c844c1-be .kb-img img{border-top-left-radius:5px;border-top-right-radius:5px;border-bottom-right-radius:5px;border-bottom-left-radius:5px;box-shadow:0px 0px 14px 0px rgba(0, 0, 0, 0.2);}<\/style>\n<div class=\"wp-block-kadence-image kb-image4720_c844c1-be\"><figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"822\" height=\"216\" src=\"https:\/\/secondlife.lol\/wp-content\/uploads\/2025\/01\/image-16-4.jpg\" alt=\"\ucee4\uc2a4\ud140 \ub9e4\ub2c8\uc800(Custom Manager) \uc774\ubbf8\uc9c0\" class=\"kb-img wp-image-4743\" srcset=\"https:\/\/secondlife.lol\/wp-content\/uploads\/2025\/01\/image-16-4.jpg 822w, https:\/\/secondlife.lol\/wp-content\/uploads\/2025\/01\/image-16-4-300x79.jpg 300w, https:\/\/secondlife.lol\/wp-content\/uploads\/2025\/01\/image-16-4-600x158.jpg 600w, https:\/\/secondlife.lol\/wp-content\/uploads\/2025\/01\/image-16-4-768x202.jpg 768w, https:\/\/secondlife.lol\/wp-content\/uploads\/2025\/01\/image-16-4-18x5.jpg 18w\" sizes=\"(max-width: 822px) 100vw, 822px\" \/><\/figure><\/div>\n\n\n\n<pre class=\"wp-block-code language-python\"><code>\u4ece django.db \u5bfc\u5165\u6a21\u578b\n\n\u7c7b PublishedManager(models.Manager)\uff1a\n    def get_queryset(self)\uff1a\n        return super().get_queryset().filter(status='published')\n\nclass Post(models.Model)\uff1a\n    title = models.CharField(max_length=200)\n    content = models.TextField()\n    status = models.CharField(max_length=10, choices=[('draft', 'Draft'), ('published', 'Published')])\n\n    objects = models.Manager() # \u9ed8\u8ba4\u7ba1\u7406\u5668\n    published = PublishedManager() # \u81ea\u5b9a\u4e49\u7ba1\u7406\u5668\n\n    def __str__(self)\uff1a\n        return self.title<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u4ee3\u7801\u8bc4\u6ce8<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<ul class=\"wp-block-list\">\n<li><strong><code>\u7c7b PublishedManager(models.Manager)\uff1a<\/code><\/strong>\n<ul class=\"wp-block-list\">\n<li>\u59dc\u6208\u7684 <code>\u7ecf\u7406<\/code>\u6765\u5b9a\u4e49\u81ea\u5b9a\u4e49\u7ba1\u7406\u5668\u7c7b\u3002<\/li>\n\n\n\n<li>\u8be5\u7c7b\u65e8\u5728\u5141\u8bb8\u60a8\u5bf9\u6570\u636e\u5e93\u67e5\u8be2\u5e94\u7528\u7279\u5b9a\u6761\u4ef6\uff0c\u5e76\u8fd4\u56de\u81ea\u5b9a\u4e49\u67e5\u8be2\u96c6\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong><code>def get_queryset(self)\uff1a<\/code><\/strong>\n<ul class=\"wp-block-list\">\n<li><code>get_queryset<\/code> \u65b9\u6cd5\u8d1f\u8d23\u8fd4\u56de\u67e5\u8be2\u96c6\u3002<\/li>\n\n\n\n<li><strong><code>return super().get_queryset().filter(status='published')<\/code><\/strong>\n<ul class=\"wp-block-list\">\n<li>\u9ed8\u8ba4\u67e5\u8be2\u96c6 (<code>super().get_queryset()<\/code>) \u6dfb\u52a0\u4e00\u4e2a\u8fc7\u6ee4\u5668\u5230 <code>\u5730\u4f4d<\/code> \u5982\u679c\u5b57\u6bb5\u503c\u4e3a <code>\u5df2\u51fa\u7248<\/code>\u8bbe\u7f6e\u4e3a\u53ea\u67e5\u8be2<\/li>\n\n\n\n<li>\u8fd9\u79cd\u65b9\u6cd5\u5141\u8bb8\u60a8\u4f7f\u7528 <code>\u5df2\u51fa\u7248<\/code> \u60a8\u53ef\u4ee5\u9009\u62e9\u6027\u5730\u53ea\u7ba1\u7406\u4e00\u4e2a\u72b6\u6001\u4e2d\u7684\u6570\u636e\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong><code>objects = models.Manager()<\/code><\/strong>\n<ul class=\"wp-block-list\">\n<li>\u5b9a\u4e49\u6a21\u578b\u7684\u9ed8\u8ba4\u7ba1\u7406\u5668\u3002<\/li>\n\n\n\n<li><code>\u7269\u4ef6<\/code>\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5305\u542b\u6240\u6709\u6570\u636e\u7684\u9ed8\u8ba4\u67e5\u8be2\u96c6\u3002<\/li>\n\n\n\n<li>\u5b83\u53ef\u4e0e\u81ea\u5b9a\u4e49\u7ba1\u7406\u5668\u4e00\u8d77\u4f7f\u7528\uff0c\u4e3a\u67e5\u770b\u6a21\u578b\u4e2d\u7684\u6570\u636e\u63d0\u4f9b\u66f4\u591a\u65b9\u6cd5\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong><code>published = PublishedManager()<\/code><\/strong>\n<ul class=\"wp-block-list\">\n<li>\u5c06\u81ea\u5b9a\u4e49\u7ba1\u7406\u5668\u8fde\u63a5\u5230\u6a21\u578b\uff0c\u521b\u5efa\u4e00\u4e2a <code>status='published<\/code> \u5b9a\u4e49\u4e00\u4e2a\u7ba1\u7406\u5668\uff0c\u8be5\u7ba1\u7406\u5668\u4f1a\u8fd4\u56de\u4e00\u4e2a\u5df2\u5e94\u7528\u6761\u4ef6\u7684\u67e5\u8be2\u96c6\u3002<\/li>\n\n\n\n<li>\u8be5\u7ba1\u7406\u5668\u5141\u8bb8\u60a8\u4f7f\u7528 <code>Post.published.all()<\/code>\u8f7b\u677e\u67e5\u627e\u7b26\u5408\u7279\u5b9a\u6761\u4ef6\u7684\u6570\u636e\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong><code>\u7c7b Post(models.Model)\uff1a<\/code><\/strong>\n<ul class=\"wp-block-list\">\n<li>\u7ba1\u7406\u535a\u5ba2\u6587\u7ae0\u7684\u6a21\u578b\u7c7b\u3002<\/li>\n\n\n\n<li>\u4e3b\u8981\u9886\u57df\u6709\n<ul class=\"wp-block-list\">\n<li><strong><code>\u6807\u9898<\/code><\/strong>\uff1a\u5e16\u5b50\u6807\u9898 (<code>CharField<\/code>)\uff0c\u6700\u5927\u957f\u5ea6\u4e3a 200 \u4e2a\u5b57\u7b26\u3002<\/li>\n\n\n\n<li><strong><code>\u5185\u5bb9<\/code><\/strong>\u5b58\u50a8\u5e16\u5b50\u6b63\u6587\u5185\u5bb9\u7684\u5b57\u6bb5 (<code>\u6587\u672c\u5b57\u6bb5<\/code>).<\/li>\n\n\n\n<li><strong><code>\u5730\u4f4d<\/code><\/strong>\u5458\u989d\u72b6\u6001 (<code>\u8349\u6848<\/code> \u6216 <code>\u5df2\u51fa\u7248<\/code>)\u6765\u5b58\u50a8 <code>\u9009\u62e9<\/code> \u53ef\u9009\u62e9\u9650\u5236\u53ef\u80fd\u7684\u503c\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong><code>def __str__(self)\uff1a<\/code><\/strong>\n<ul class=\"wp-block-list\">\n<li>\u7528\u5b57\u7b26\u4e32\u8868\u793a\u5bf9\u8c61\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u5e16\u5b50\u7684\u6807\u9898 (<code>\u6807\u9898<\/code>) \u8fd4\u56de\u3002<\/li>\n\n\n\n<li>\u4f8b\u5982\uff0c\u5728 Django \u7ba1\u7406\u9875\u9762\u6216 shell \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>\u804c\u4f4d<\/code> \u8f93\u51fa\u5bf9\u8c61\u65f6\uff0c\u4f1a\u663e\u793a\u4e00\u4e2a\u6807\u9898\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">2. Django \u6a21\u578b\u6df1\u5ea6\uff1a\u62bd\u8c61\u6a21\u578b<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u62bd\u8c61\u6a21\u578b\u53ef\u7528\u4e8e\u5b9a\u4e49\u591a\u4e2a\u6a21\u578b\u5171\u540c\u4f7f\u7528\u7684\u5b57\u6bb5\u3002\u7ee7\u627f\u81ea\u62bd\u8c61\u6a21\u578b\u7684\u6a21\u578b\u5c06\u81ea\u52a8\u5305\u542b\u62bd\u8c61\u6a21\u578b\u4e2d\u7684\u5b57\u6bb5\u3002<\/p>\n\n\n<style>.kb-image4720_a7b37a-52 .kb-image-has-overlay:after{opacity:0.3;border-top-left-radius:5px;border-top-right-radius:5px;border-bottom-right-radius:5px;border-bottom-left-radius:5px;}.kb-image4720_a7b37a-52 img.kb-img, .kb-image4720_a7b37a-52 .kb-img img{border-top-left-radius:5px;border-top-right-radius:5px;border-bottom-right-radius:5px;border-bottom-left-radius:5px;box-shadow:0px 0px 14px 0px rgba(0, 0, 0, 0.2);}<\/style>\n<div class=\"wp-block-kadence-image kb-image4720_a7b37a-52\"><figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"698\" height=\"241\" src=\"https:\/\/secondlife.lol\/wp-content\/uploads\/2025\/01\/image-16-5.jpg\" alt=\"\ucd94\uc0c1 \ubaa8\ub378(Abstract Model) \uc774\ubbf8\uc9c0\" class=\"kb-img wp-image-4745\" srcset=\"https:\/\/secondlife.lol\/wp-content\/uploads\/2025\/01\/image-16-5.jpg 698w, https:\/\/secondlife.lol\/wp-content\/uploads\/2025\/01\/image-16-5-300x104.jpg 300w, https:\/\/secondlife.lol\/wp-content\/uploads\/2025\/01\/image-16-5-600x207.jpg 600w, https:\/\/secondlife.lol\/wp-content\/uploads\/2025\/01\/image-16-5-18x6.jpg 18w\" sizes=\"(max-width: 698px) 100vw, 698px\" \/><\/figure><\/div>\n\n\n\n<pre class=\"wp-block-code language-python\"><code>\u7c7b TimeStampedModel(models.Model)\uff1a\n    created_at = models.DateTimeField(auto_now_add=True)\n    updated_at = models.DateTimeField(auto_now=True)\n\n    \u7c7b \u5143\uff1a\n        \u62bd\u8c61 = True\n\n\u7c7b Post(TimeStampedModel)\uff1a\n    title = models.CharField(max_length=200)\n    content = models.TextField()\n\n    def __str__(self)\uff1a\n        return self.title<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u4ee3\u7801\u8bc4\u6ce8<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<ul class=\"wp-block-list\">\n<li><code>\u7c7b TimeStampedModel(models.Model)<\/code>\u5b9a\u4e49\u4e00\u4e2a\u62bd\u8c61\u6a21\u578b\u7c7b\u3002<\/li>\n\n\n\n<li><code>created_at = models.DateTimeField(auto_now_add=True)<\/code>\uff1a\u81ea\u52a8\u4fdd\u5b58\u6a21\u578b\u521b\u5efa\u7684\u65f6\u95f4\u3002<\/li>\n\n\n\n<li><code>updated_at = models.DateTimeField(auto_now=True)<\/code>\uff1a\u81ea\u52a8\u4fdd\u5b58\u6a21\u578b\u66f4\u65b0\u7684\u65f6\u95f4\u3002<\/li>\n\n\n\n<li><code>\u7c7b \u5143\uff1a \u62bd\u8c61 = True<\/code>\uff1a\u58f0\u660e\u8be5\u6a21\u578b\u662f\u4e00\u4e2a\u62bd\u8c61\u6a21\u578b\u3002<\/li>\n\n\n\n<li><code>\u7c7b Post\uff08TimeStampedModel\uff09<\/code>: <code>\u65f6\u95f4\u6233\u6a21\u578b<\/code>\u7ee7\u627f\u81ea <code>\u804c\u4f4d<\/code> \u5b9a\u4e49\u6a21\u578b\u3002<\/li>\n<\/ul>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">3. \u6df1\u5316 Django \u6a21\u578b\uff1a\u5229\u7528\u591a\u4e2a\u6570\u636e\u5e93<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Django \u53ef\u4ee5\u540c\u65f6\u4f7f\u7528\u591a\u4e2a\u6570\u636e\u5e93\u3002\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u62e5\u6709\u4e00\u4e2a\u53ea\u8bfb\u6570\u636e\u5e93\u548c\u4e00\u4e2a\u53ea\u5199\u6570\u636e\u5e93\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code language-python\"><code>\u7c7b User(models.Model)\uff1a\n    name = models.CharField(max_length=100)\n    \u7535\u5b50\u90ae\u4ef6 = models.EmailField()\n\n    \u7c7b \u5143\n        db_table = 'user\n        using = 'default' \u4f7f\u7528 # \u9ed8\u8ba4\u6570\u636e\u5e93\n\n\u7c7b Log(models.Model)\uff1a\n    action = models.CharField(max_length=100)\n    timestamp = models.DateTimeField(auto_now_add=True)\n\n    \u7c7b\u5143\uff1a\n        db_table = 'log\n        using = 'logs_db' # \u4f7f\u7528\u5355\u72ec\u7684\u6570\u636e\u5e93<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u4ee3\u7801\u8bc4\u6ce8<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<ol class=\"wp-block-list\">\n<li><strong><code>\u7c7b User(models.Model)\uff1a<\/code><\/strong><ul><li><strong>\u7ba1\u7406\u7528\u6237\u6570\u636e<\/strong>Django \u6a21\u578b\u7c7b\uff0c\u7528\u4e8e<\/li><li>\u5b83\u4e3b\u8981\u5b58\u50a8\u7528\u6237\u540d\u548c\u7535\u5b50\u90ae\u4ef6\u4fe1\u606f\u3002<\/li><li>\u4e3b\u8981\u9886\u57df\u6709<ul><li><strong><code>\u540d\u5b57<\/code><\/strong>\uff1a\u5b57\u7b26\u5b57\u6bb5\uff0c\u6700\u591a\u53ef\u5b58\u50a8 100 \u4e2a\u5b57\u7b26 (<code>CharField<\/code>).<\/li><li><strong><code>\u7535\u5b50\u90ae\u4ef6<\/code><\/strong>\uff1a\u5b58\u50a8\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u7684\u5b57\u6bb5 (<code>\u7535\u5b50\u90ae\u4ef6\u5b57\u6bb5<\/code>)\uff0c\u4f1a\u81ea\u52a8\u8fdb\u884c\u9a8c\u8bc1\u3002<\/li><\/ul><\/li><\/ul><strong>\u5143\u7c7b<\/strong>:\n<ul class=\"wp-block-list\">\n<li><strong><code>db_table = 'user'<\/code><\/strong>:\n<ul class=\"wp-block-list\">\n<li>\u5c06\u6570\u636e\u5e93\u4e2d\u8981\u4f7f\u7528\u7684\u8868\u7684\u540d\u79f0\u8bbe\u7f6e\u4e3a <code>\u7528\u6237<\/code>\u4e3a<\/li>\n\n\n\n<li>\u81ea\u52a8\u751f\u6210\u8868\u540d\u7684\u9ed8\u8ba4\u89c4\u5219 (<code>appname_modelname<\/code>) \u800c\u4e0d\u662f\u6307\u5b9a\u7684\u540d\u79f0\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong><code>\u4f7f\u7528 = '\u9ed8\u8ba4<\/code><\/strong>:\n<ul class=\"wp-block-list\">\n<li>\u8be5\u6a21\u578b\u57fa\u4e8e Django \u9879\u76ee\u7684\u9ed8\u8ba4\u6570\u636e\u5e93 (<code>\u9ed8\u8ba4<\/code>) \u7684\u4f8b\u5b50\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong><code>\u7c7b Log(models.Model)\uff1a<\/code><\/strong><ul><li><strong>\u7ba1\u7406\u65e5\u5fd7\u6570\u636e<\/strong>Django \u6a21\u578b\u7c7b\uff0c\u7528\u4e8e<\/li><li>\u4e3b\u8981\u9886\u57df\u6709<ul><li><strong><code>\u884c\u52a8<\/code><\/strong>\uff1a\u5b57\u7b26\u5b57\u6bb5\uff0c\u6700\u591a\u53ef\u5b58\u50a8 100 \u4e2a\u5b57\u7b26 (<code>CharField<\/code>)\uff0c\u5176\u4e2d\u5b58\u50a8\u4e86\u5bf9\u7279\u5b9a\u64cd\u4f5c\uff08\u5982 \"\u767b\u5f55\"\u3001\"\u6ce8\u9500\"\uff09\u7684\u63cf\u8ff0\u3002<\/li><li><strong><code>\u65f6\u6233<\/code><\/strong>\uff1a\u4e00\u4e2a\u65e5\u671f\u65f6\u95f4\u5b57\u6bb5\uff0c\u7528\u4e8e\u5b58\u50a8\u64cd\u4f5c\u53d1\u751f\u7684\u65f6\u95f4 (<code>\u65e5\u671f\u65f6\u95f4\u5b57\u6bb5<\/code>).<ul><li><code>auto_now_add=True<\/code>\u4fdd\u5b58\u65f6\u95f4\uff1a\u5728\u9996\u6b21\u521b\u5efa\u5bf9\u8c61\u65f6\u81ea\u52a8\u4fdd\u5b58\u5f53\u524d\u65f6\u95f4\u3002<\/li><\/ul><\/li><\/ul><\/li><\/ul><strong>\u5143\u7c7b<\/strong>:\n<ul class=\"wp-block-list\">\n<li><strong><code>db_table = 'log'<\/code><\/strong>:\n<ul class=\"wp-block-list\">\n<li>\u5c06\u6570\u636e\u5e93\u4e2d\u8981\u4f7f\u7528\u7684\u8868\u7684\u540d\u79f0\u8bbe\u7f6e\u4e3a <code>'\u65e5\u5fd7<\/code>\u4e3a<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong><code>using = 'logs_db'<\/code><\/strong>:\n<ul class=\"wp-block-list\">\n<li>\u8be5\u6a21\u578b\u4f7f\u7528 <code>\u65e5\u5fd7\u6570\u636e\u5e93<\/code>\u4eba\u79f0 <strong>\u72ec\u7acb\u7684\u6570\u636e\u5e93<\/strong>\u4ee5\u4f7f\u7528<\/li>\n\n\n\n<li>\u9879\u76ee\u914d\u7f6e\u6587\u4ef6 (<code>settings.py<\/code>)\u4e2d\u7684 <code>\u65e5\u5fd7\u6570\u636e\u5e93<\/code>\u5fc5\u987b\u5b9a\u4e49\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">\u603b\u7ed3<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u73b0\u5728\uff0c\u60a8\u5df2\u7ecf\u4e86\u89e3\u4e86 Django \u6a21\u578b\u7684\u6df1\u5c42\u529f\u80fd\uff0c\u5e94\u8be5\u80fd\u591f\u66f4\u6709\u6548\u5730\u4f7f\u7528\u5b83\u4eec\u4e86\u3002 \u5982\u679c\u60a8\u8fd8\u6709\u5176\u4ed6\u95ee\u9898\uff0c\u8bf7\u5728\u8bc4\u8bba\u4e2d\u7559\u8a00\u3002\u8ba9\u6211\u4eec\u4e00\u8d77\u5b66\u4e60\u5427<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"># \u672f\u8bed\u8868<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u81ea\u5b9a\u4e49\u7ba1\u7406\u5668<\/strong>\u81ea\u5b9a\u4e49\u7ba1\u7406\u5668\uff0c\u53ea\u5141\u8bb8\u68c0\u7d22\u7b26\u5408\u7279\u5b9a\u6761\u4ef6\u7684\u6570\u636e\u3002<\/li>\n\n\n\n<li><strong>\u62bd\u8c61\u6a21\u578b<\/strong>\u5b9a\u4e49\u4e86\u591a\u4e2a\u6a21\u578b\u901a\u7528\u5b57\u6bb5\u7684\u6a21\u578b\u3002<\/li>\n\n\n\n<li><strong>\u591a\u4e2a\u6570\u636e\u5e93<\/strong>\u5728\u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f\u4e2d\u540c\u65f6\u4f7f\u7528\u591a\u4e2a\u6570\u636e\u5e93\u7684\u6280\u672f\u3002<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"<p>\u5927\u5bb6\u597d\uff01\u8ba9\u6211\u4eec\u8d85\u8d8a Django \u6a21\u578b\u7684\u57fa\u7840\u77e5\u8bc6\uff0c\u6df1\u5165\u4e86\u89e3...<\/p>","protected":false},"author":3,"featured_media":4749,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[3],"tags":[831,834,832,722,833],"class_list":["post-4720","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python-coding","tag-django-models-","tag-django--","tag-832","tag-722","tag--django"],"taxonomy_info":{"category":[{"value":3,"label":"\ud30c\uc774\uc36c(Python)"}],"post_tag":[{"value":831,"label":"Django Models \uc2ec\ud654"},{"value":834,"label":"Django \uc2e4\uc804 \ud65c\uc6a9"},{"value":832,"label":"\uace0\uae09 \ub370\uc774\ud130\ubca0\uc774\uc2a4 \uc124\uacc4"},{"value":722,"label":"\uc6f9 \uac1c\ubc1c"},{"value":833,"label":"\ud30c\uc774\uc36c Django"}]},"featured_image_src_large":["https:\/\/secondlife.lol\/wp-content\/uploads\/2025\/01\/Django-Models-\uc2ec\ud654-\ud3ec\uc2a4\ud2b8-\uc378\ub124\uc77c-600x600.jpg",600,600,true],"author_info":{"display_name":"TERE","author_link":"https:\/\/secondlife.lol\/zh\/author\/tere\/"},"comment_info":0,"category_info":[{"term_id":3,"name":"\ud30c\uc774\uc36c(Python)","slug":"python-coding","term_group":0,"term_taxonomy_id":3,"taxonomy":"category","description":"","parent":20,"count":118,"filter":"raw","cat_ID":3,"category_count":118,"category_description":"","cat_name":"\ud30c\uc774\uc36c(Python)","category_nicename":"python-coding","category_parent":20}],"tag_info":[{"term_id":831,"name":"Django Models \uc2ec\ud654","slug":"django-models-%ec%8b%ac%ed%99%94","term_group":0,"term_taxonomy_id":832,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":834,"name":"Django \uc2e4\uc804 \ud65c\uc6a9","slug":"django-%ec%8b%a4%ec%a0%84-%ed%99%9c%ec%9a%a9","term_group":0,"term_taxonomy_id":834,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":832,"name":"\uace0\uae09 \ub370\uc774\ud130\ubca0\uc774\uc2a4 \uc124\uacc4","slug":"%ea%b3%a0%ea%b8%89-%eb%8d%b0%ec%9d%b4%ed%84%b0%eb%b2%a0%ec%9d%b4%ec%8a%a4-%ec%84%a4%ea%b3%84","term_group":0,"term_taxonomy_id":831,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":722,"name":"\uc6f9 \uac1c\ubc1c","slug":"%ec%9b%b9-%ea%b0%9c%eb%b0%9c","term_group":0,"term_taxonomy_id":722,"taxonomy":"post_tag","description":"","parent":0,"count":8,"filter":"raw"},{"term_id":833,"name":"\ud30c\uc774\uc36c Django","slug":"%ed%8c%8c%ec%9d%b4%ec%8d%ac-django","term_group":0,"term_taxonomy_id":833,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"}],"_links":{"self":[{"href":"https:\/\/secondlife.lol\/zh\/wp-json\/wp\/v2\/posts\/4720","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/secondlife.lol\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/secondlife.lol\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/secondlife.lol\/zh\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/secondlife.lol\/zh\/wp-json\/wp\/v2\/comments?post=4720"}],"version-history":[{"count":9,"href":"https:\/\/secondlife.lol\/zh\/wp-json\/wp\/v2\/posts\/4720\/revisions"}],"predecessor-version":[{"id":4831,"href":"https:\/\/secondlife.lol\/zh\/wp-json\/wp\/v2\/posts\/4720\/revisions\/4831"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/secondlife.lol\/zh\/wp-json\/wp\/v2\/media\/4749"}],"wp:attachment":[{"href":"https:\/\/secondlife.lol\/zh\/wp-json\/wp\/v2\/media?parent=4720"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/secondlife.lol\/zh\/wp-json\/wp\/v2\/categories?post=4720"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/secondlife.lol\/zh\/wp-json\/wp\/v2\/tags?post=4720"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}