{"id":451,"date":"2023-06-21T00:23:50","date_gmt":"2024-02-07T18:42:34","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/%e5%a6%82%e4%bd%95%e5%88%9b%e5%bb%badjango%e6%a8%a1%e5%9e%8b\/"},"modified":"2025-08-02T10:36:34","modified_gmt":"2025-08-02T02:36:34","slug":"%e5%a6%82%e4%bd%95%e5%88%9b%e5%bb%badjango%e6%a8%a1%e5%9e%8b","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%a6%82%e4%bd%95%e5%88%9b%e5%bb%badjango%e6%a8%a1%e5%9e%8b\/","title":{"rendered":"2023\u5e74Django\u6a21\u578b\u521b\u5efa\u5b8c\u5168\u6307\u5357\uff1a\u4ece\u5165\u95e8\u5230\u5b9e\u4f8b\u8be6\u89e3"},"content":{"rendered":"<h3>\u5f15\u8a00\u5728\u4e4b\u524d\u7684\u6559\u7a0b\u300a\u5982\u4f55\u521b\u5efa\u4e00\u4e2aDjango\u5e94\u7528\u5e76\u8fde\u63a5\u5230\u6570\u636e\u5e93\u300b\u4e2d\uff0c\u6211\u4eec\u4ecb\u7ecd\u4e86\u5982\u4f55\u521b\u5efa\u4e00\u4e2aMySQL\u6570\u636e\u5e93\uff0c\u5982\u4f55\u521b\u5efa\u548c\u542f\u52a8\u4e00\u4e2aDjango\u5e94\u7528\uff0c\u5e76\u5982\u4f55\u5c06\u5176\u8fde\u63a5\u5230\u4e00\u4e2aMySQL\u6570\u636e\u5e93\u3002<\/p>\n<p>\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u5c06\u521b\u5efaDjango\u6a21\u578b\u6765\u5b9a\u4e49\u6211\u4eec\u5c06\u5b58\u50a8\u7684\u535a\u5ba2\u5e94\u7528\u7a0b\u5e8f\u6570\u636e\u7684\u5b57\u6bb5\u548c\u884c\u4e3a\u3002\u8fd9\u4e9b\u6a21\u578b\u5c06\u6570\u636e\u4ece\u60a8\u7684Django\u5e94\u7528\u7a0b\u5e8f\u6620\u5c04\u5230\u6570\u636e\u5e93\u3002\u5b83\u662fDjango\u4f7f\u7528\u7684\u901a\u8fc7\u5bf9\u8c61\u5173\u7cfb\u6620\u5c04\uff08ORM\uff09API\u751f\u6210\u6570\u636e\u5e93\u8868\u7684\u65b9\u5f0f\uff0c\u88ab\u79f0\u4e3a\u201c\u6a21\u578b\u201d\u3002<\/p>\n<h2>\u5148\u51b3\u6761\u4ef6\u8fd9\u4e2a\u6559\u7a0b\u662fDjango\u5f00\u53d1\u7cfb\u5217\u7684\u4e00\u90e8\u5206\uff0c\u4e5f\u662f\u8fd9\u4e2a\u7cfb\u5217\u7684\u5ef6\u7eed\u3002<\/p>\n<p>\u5982\u679c\u60a8\u8fd8\u6ca1\u6709\u8ddf\u968f\u672c\u7cfb\u5217\u7684\u8fdb\u5c55\uff0c\u90a3\u6211\u4eec\u505a\u51fa\u4ee5\u4e0b\u5047\u8bbe\uff1a<\/p>\n<ul class=\"post-ul\">\n<li>You have Django version 4 or higher installed.<\/li>\n<li>You have connected your Django app to a database. We are using MySQL, and you can achieve this connection by following part two of the Django series, \u201cHow To Create a Django App and Connect it to a Database.\u201d<\/li>\n<li>You are working with a Unix-based operating system, preferably an Ubuntu 22.04 cloud server as this is the system we have tested on. If you would like to set up Django on a similar environment, please refer to our tutorial, \u201cHow To Install Django and Set Up a Development Environment on Ubuntu 22.04.\u201d<\/li>\n<\/ul>\n<p>\u7531\u4e8e\u672c\u6559\u7a0b\u4e3b\u8981\u6d89\u53caDjango\u6a21\u578b\uff0c\u5373\u4f7f\u60a8\u7684\u8bbe\u7f6e\u6709\u4e9b\u4e0d\u540c\uff0c\u60a8\u4e5f\u53ef\u80fd\u80fd\u591f\u8ddf\u968f\u8fdb\u884c\u3002<\/p>\n<h2>\u7b2c\u4e00\u6b65 &#8211; \u521b\u5efaDjango\u5e94\u7528\u7a0b\u5e8f\u4e3a\u4e86\u4e0eDjango\u7684\u6a21\u5757\u5316\u7406\u5ff5\u4fdd\u6301\u4e00\u81f4\uff0c\u6211\u4eec\u5c06\u5728\u9879\u76ee\u4e2d\u521b\u5efa\u4e00\u4e2aDjango\u5e94\u7528\u7a0b\u5e8f\uff0c\u5176\u4e2d\u5305\u542b\u521b\u5efa\u535a\u5ba2\u7f51\u7ad9\u6240\u9700\u7684\u6240\u6709\u6587\u4ef6\u3002<\/p>\n<p>\u6bcf\u5f53\u6211\u4eec\u5f00\u59cb\u5728Python\u548cDjango\u4e2d\u5de5\u4f5c\u65f6\uff0c\u6211\u4eec\u5e94\u8be5\u6fc0\u6d3bPython\u865a\u62df\u73af\u5883\u5e76\u8fdb\u5165\u6211\u4eec\u5e94\u7528\u7684\u6839\u76ee\u5f55\u3002\u5982\u679c\u60a8\u8ddf\u968f\u6574\u4e2a\u7cfb\u5217\u64cd\u4f5c\uff0c\u53ef\u4ee5\u901a\u8fc7\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\u6765\u5b9e\u73b0\u8fd9\u4e00\u70b9\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token builtin class-name\">cd<\/span> ~\/my_blog_app<\/li>\n<li data-prefix=\"$\"><span class=\"token builtin class-name\">.<\/span> env\/bin\/activate<\/li>\n<li data-prefix=\"$\"><span class=\"token builtin class-name\">cd<\/span> blog<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u4ece\u90a3\u91cc\u5f00\u59cb\uff0c\u8ba9\u6211\u4eec\u8fd0\u884c\u8fd9\u4e2a\u547d\u4ee4\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"(env) sammy@ubuntu:$\">python manage.py startapp blogsite<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u8fd9\u5c06\u521b\u5efa\u6211\u4eec\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u5e76\u9644\u5e26\u4e00\u4e2a\u535a\u5ba2\u7f51\u5740\u76ee\u5f55\u3002<\/p>\n<p>\u5728\u672c\u6559\u7a0b\u7cfb\u5217\u7684\u8fd9\u4e00\u70b9\u4e0a\uff0c\u60a8\u5c06\u4e3a\u60a8\u7684\u9879\u76ee\u62e5\u6709\u4ee5\u4e0b\u76ee\u5f55\u7ed3\u6784\uff1a<\/p>\n<pre class=\"post-pre\"><code>my_blog_app\/\r\n\u2514\u2500\u2500 blog\r\n    \u251c\u2500\u2500 blog\r\n    \u2502   \u251c\u2500\u2500 __init__.py\r\n    \u2502   \u251c\u2500\u2500 __pycache__\r\n    \u2502   \u2502   \u251c\u2500\u2500 __init__.cpython-38.pyc\r\n    \u2502   \u2502   \u251c\u2500\u2500 settings.cpython-38.pyc\r\n    \u2502   \u2502   \u251c\u2500\u2500 urls.cpython-38.pyc\r\n    \u2502   \u2502   \u2514\u2500\u2500 wsgi.cpython-38.pyc\r\n    \u2502   \u251c\u2500\u2500 asgi.py\r\n    \u2502   \u251c\u2500\u2500 settings.py\r\n    \u2502   \u251c\u2500\u2500 urls.py\r\n    \u2502   \u2514\u2500\u2500 wsgi.py\r\n    \u251c\u2500\u2500 blogsite\r\n    \u2502   \u251c\u2500\u2500 __init__.py\r\n    \u2502   \u251c\u2500\u2500 admin.py\r\n    \u2502   \u251c\u2500\u2500 apps.py\r\n    \u2502   \u251c\u2500\u2500 migrations\r\n    \u2502   \u2502   \u2514\u2500\u2500 __init__.py\r\n    \u2502   \u251c\u2500\u2500 models.py\r\n    \u2502   \u251c\u2500\u2500 tests.py\r\n    \u2502   \u2514\u2500\u2500 views.py\r\n    \u2514\u2500\u2500 manage.py\r\n<\/code><\/pre>\n<p>\u6211\u4eec\u5728\u672c\u6559\u7a0b\u4e2d\u8981\u91cd\u70b9\u5173\u6ce8\u7684\u6587\u4ef6\u662f\u4f4d\u4e8eblogsite\u76ee\u5f55\u4e0b\u7684models.py\u6587\u4ef6\u3002<\/p>\n<h2>\u7b2c\u4e8c\u6b65 &#8211; \u6dfb\u52a0\u6587\u7ae0\u6a21\u578b b\u00f9 -\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u6253\u5f00\u5e76\u7f16\u8f91models.py\u6587\u4ef6\uff0c\u4ee5\u4fbf\u5176\u4e2d\u5305\u542b\u7528\u4e8e\u751f\u6210\u5e16\u5b50\u6a21\u578b\u7684\u4ee3\u7801\u3002\u5e16\u5b50\u6a21\u578b\u5305\u542b\u4ee5\u4e0b\u6570\u636e\u5e93\u5b57\u6bb5\uff1a<\/p>\n<ul class=\"post-ul\">\n<li>title \u2014 The title of the blog post.<\/li>\n<li>slug \u2014 Where valid URLs are stored and generated for web pages.<\/li>\n<li>content \u2014 The textual content of the blog post.<\/li>\n<li>created_on \u2014 The date on which the post was created.<\/li>\n<li>author \u2014 The person who has written the post.<\/li>\n<\/ul>\n<p>\u73b0\u5728\uff0c\u8fdb\u5165\u5305\u542bmodels.py\u6587\u4ef6\u7684\u76ee\u5f55\u4e2d\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"(env) sammy@ubuntu:$\"><span class=\"token builtin class-name\">cd<\/span> ~\/my_blog_app\/blog\/blogsite<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u4f7f\u7528cat\u547d\u4ee4\u5728\u7ec8\u7aef\u4e2d\u663e\u793a\u6587\u4ef6\u7684\u5185\u5bb9\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"(env) sammy@ubuntu:$\"><span class=\"token function\">cat<\/span> models.py<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u6587\u4ef6\u5e94\u8be5\u5305\u542b\u4ee5\u4e0b\u4ee3\u7801\uff0c\u5176\u4e2d\u5305\u542b\u5bfc\u5165\u6a21\u5757\u7684\u8bed\u53e5\uff0c\u5e76\u6709\u4e00\u6761\u6ce8\u91ca\u63cf\u8ff0\u8be5models.py\u6587\u4ef6\u4e2d\u9700\u8981\u653e\u7f6e\u7684\u5185\u5bb9\u3002<\/p>\n<div>\u6a21\u578b.py<\/p>\n<pre class=\"post-pre\"><code><span class=\"token keyword\">from<\/span> django<span class=\"token punctuation\">.<\/span>db <span class=\"token keyword\">import<\/span> models\r\n\r\n<span class=\"token comment\"># Create your models here.<\/span>\r\n<\/code><\/pre>\n<p>\u8bf7\u4f7f\u7528\u4f60\u559c\u7231\u7684\u6587\u672c\u7f16\u8f91\u5668\uff0c\u5728models.py\u6587\u4ef6\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u4ee3\u7801\u3002\u6211\u4eec\u5c06\u4f7f\u7528nano\u4f5c\u4e3a\u6211\u4eec\u7684\u6587\u672c\u7f16\u8f91\u5668\uff0c\u4f46\u4f60\u53ef\u4ee5\u4f7f\u7528\u4efb\u4f55\u4f60\u559c\u6b22\u7684\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"(env) sammy@ubuntu:$\"><span class=\"token function\">nano<\/span> models.py<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5728\u8fd9\u4e2a\u6587\u4ef6\u4e2d\uff0c\u5df2\u7ecf\u6dfb\u52a0\u4e86\u5bfc\u5165\u6a21\u578b API \u7684\u4ee3\u7801\uff0c\u6211\u4eec\u53ef\u4ee5\u7ee7\u7eed\u5220\u9664\u540e\u9762\u7684\u6ce8\u91ca\u3002\u7136\u540e\uff0c\u6211\u4eec\u5c06\u5bfc\u5165 slugify \u7528\u4e8e\u4ece\u5b57\u7b26\u4e32\u751f\u6210 slug\uff0c\u5bfc\u5165 Django \u7684 User \u8fdb\u884c\u8eab\u4efd\u9a8c\u8bc1\uff0c\u5e76\u4ece django.urls \u5bfc\u5165 reverse\uff0c\u4ee5\u4fbf\u5728\u521b\u5efa URL \u65f6\u63d0\u4f9b\u66f4\u5927\u7684\u7075\u6d3b\u6027\u3002<\/p>\n<div>\u6a21\u578b.py<\/p>\n<pre class=\"post-pre\"><code><span class=\"token keyword\">from<\/span> django<span class=\"token punctuation\">.<\/span>db <span class=\"token keyword\">import<\/span> models\r\n<span class=\"token keyword\">from<\/span> django<span class=\"token punctuation\">.<\/span>template<span class=\"token punctuation\">.<\/span>defaultfilters <span class=\"token keyword\">import<\/span> slugify\r\n<span class=\"token keyword\">from<\/span> django<span class=\"token punctuation\">.<\/span>contrib<span class=\"token punctuation\">.<\/span>auth<span class=\"token punctuation\">.<\/span>models <span class=\"token keyword\">import<\/span> User\r\n<span class=\"token keyword\">from<\/span> django<span class=\"token punctuation\">.<\/span>urls <span class=\"token keyword\">import<\/span> reverse\r\n<\/code><\/pre>\n<p>\u7136\u540e\uff0c\u5728\u6211\u4eec\u5c06\u8c03\u7528\u7684\u6a21\u578b\u7c7b\u4e0a\u6dfb\u52a0\u7c7b\u65b9\u6cd5Post\uff0c\u5305\u62ec\u4ee5\u4e0b\u6570\u636e\u5e93\u5b57\u6bb5\uff1a\u6807\u9898\u3001Slug\u3001\u5185\u5bb9\u3001\u521b\u5efa\u65f6\u95f4\u548c\u4f5c\u8005\u3002\u5728\u5bfc\u5165\u8bed\u53e5\u4e0b\u65b9\u6dfb\u52a0\u8fd9\u4e9b\u5b57\u6bb5\u3002<\/p>\n<div>\u6a21\u578b.py<\/p>\n<p>\u8fd9\u662f\u6587\u7ae0\u300a\u5982\u4f55\u521b\u5efaDjango\u6a21\u578b\u300b\u7684\u7b2c2\u90e8\u5206\uff08\u51717\u90e8\u5206\uff09\u3002<\/p>\n<div class=\"code-block\">\n<pre class=\"post-pre\"><code><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span>\r\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Post<\/span><span class=\"token punctuation\">(<\/span>models<span class=\"token punctuation\">.<\/span>Model<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span>\r\n    title <span class=\"token operator\">=<\/span> models<span class=\"token punctuation\">.<\/span>CharField<span class=\"token punctuation\">(<\/span>max_length<span class=\"token operator\">=<\/span><span class=\"token number\">255<\/span><span class=\"token punctuation\">)<\/span>\r\n    slug <span class=\"token operator\">=<\/span> models<span class=\"token punctuation\">.<\/span>SlugField<span class=\"token punctuation\">(<\/span>unique<span class=\"token operator\">=<\/span><span class=\"token boolean\">True<\/span><span class=\"token punctuation\">,<\/span> max_length<span class=\"token operator\">=<\/span><span class=\"token number\">255<\/span><span class=\"token punctuation\">)<\/span>\r\n    content <span class=\"token operator\">=<\/span> models<span class=\"token punctuation\">.<\/span>TextField<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n    created_on <span class=\"token operator\">=<\/span> models<span class=\"token punctuation\">.<\/span>DateTimeField<span class=\"token punctuation\">(<\/span>auto_now_add<span class=\"token operator\">=<\/span><span class=\"token boolean\">True<\/span><span class=\"token punctuation\">)<\/span>\r\n    author <span class=\"token operator\">=<\/span> models<span class=\"token punctuation\">.<\/span>TextField<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n<\/code><\/pre>\n<\/div>\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u6dfb\u52a0\u751f\u6210URL\u548c\u4fdd\u5b58\u5e16\u5b50\u7684\u529f\u80fd\u3002\u8fd9\u4e00\u70b9\u975e\u5e38\u91cd\u8981\uff0c\u56e0\u4e3a\u8fd9\u5c06\u4e3a\u6211\u4eec\u7684\u72ec\u7279\u5e16\u5b50\u521b\u5efa\u4e00\u4e2a\u552f\u4e00\u7684\u94fe\u63a5\u3002<\/p>\n<div class=\"code-block\">\n<p>\u6a21\u578b.py<\/p>\n<pre class=\"post-pre\"><code><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span>\r\n    <span class=\"token keyword\">def<\/span> <span class=\"token function\">get_absolute_url<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span>\r\n        <span class=\"token keyword\">return<\/span> reverse<span class=\"token punctuation\">(<\/span><span class=\"token string\">'blog_post_detail'<\/span><span class=\"token punctuation\">,<\/span> args<span class=\"token operator\">=<\/span><span class=\"token punctuation\">[<\/span>self<span class=\"token punctuation\">.<\/span>slug<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\n    <span class=\"token keyword\">def<\/span> <span class=\"token function\">save<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">*<\/span>args<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">**<\/span>kwargs<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span>\r\n        <span class=\"token keyword\">if<\/span> <span class=\"token keyword\">not<\/span> self<span class=\"token punctuation\">.<\/span>slug<span class=\"token punctuation\">:<\/span>\r\n            self<span class=\"token punctuation\">.<\/span>slug <span class=\"token operator\">=<\/span> slugify<span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">.<\/span>title<span class=\"token punctuation\">)<\/span>\r\n        <span class=\"token builtin\">super<\/span><span class=\"token punctuation\">(<\/span>Post<span class=\"token punctuation\">,<\/span> self<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>save<span class=\"token punctuation\">(<\/span><span class=\"token operator\">*<\/span>args<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">**<\/span>kwargs<span class=\"token punctuation\">)<\/span>\r\n<\/code><\/pre>\n<\/div>\n<p>\u73b0\u5728\uff0c\u6211\u4eec\u9700\u8981\u544a\u8bc9\u6a21\u578b\u5e16\u5b50\u5e94\u8be5\u5982\u4f55\u6392\u5e8f\u5e76\u5728\u7f51\u9875\u4e0a\u663e\u793a\u3002\u8fd9\u5c06\u5728\u4e00\u4e2a\u5d4c\u5957\u7684\u5185\u90e8 Meta \u7c7b\u4e2d\u6dfb\u52a0\u903b\u8f91\u3002Meta \u7c7b\u901a\u5e38\u5305\u542b\u5176\u4ed6\u4e0e\u6570\u636e\u5e93\u5b57\u6bb5\u5b9a\u4e49\u65e0\u5173\u7684\u91cd\u8981\u6a21\u578b\u903b\u8f91\u3002<\/p>\n<p>\u6a21\u578b.py<\/p>\n<pre class=\"post-pre\"><code><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span>\r\n    <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Meta<\/span><span class=\"token punctuation\">:<\/span>\r\n        ordering <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token string\">'created_on'<\/span><span class=\"token punctuation\">]<\/span>\r\n\r\n        <span class=\"token keyword\">def<\/span> <span class=\"token function\">__unicode__<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span>\r\n            <span class=\"token keyword\">return<\/span> self<span class=\"token punctuation\">.<\/span>title\r\n<\/code><\/pre>\n<p>\u6700\u540e\uff0c\u6211\u4eec\u5c06\u5728\u8fd9\u4e2a\u6587\u4ef6\u4e2d\u6dfb\u52a0 Comment \u6a21\u578b\u3002\u8fd9\u6d89\u53ca\u5230\u5728\u7b7e\u540d\u4e2d\u6dfb\u52a0\u53e6\u4e00\u4e2a\u540d\u4e3a Comment \u7684\u7c7b\uff0c\u5e76\u5b9a\u4e49\u4ee5\u4e0b\u6570\u636e\u5e93\u5b57\u6bb5\uff1amodels.Models\u3002<\/p>\n<ul class=\"post-ul\">\n<li>name \u2014 The name of the person posting the comment.<\/li>\n<li>email \u2014 The email address of the person posting the comment.<\/li>\n<li>text \u2014 The text of the comment itself.<\/li>\n<li>post \u2014 The post with which the comment was made.<\/li>\n<li>created_on \u2014 The time the comment was created.<\/li>\n<\/ul>\n<div>\u6a21\u578b.py<\/p>\n<pre class=\"post-pre\"><code><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span>\r\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Comment<\/span><span class=\"token punctuation\">(<\/span>models<span class=\"token punctuation\">.<\/span>Model<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span>\r\n    name <span class=\"token operator\">=<\/span> models<span class=\"token punctuation\">.<\/span>CharField<span class=\"token punctuation\">(<\/span>max_length<span class=\"token operator\">=<\/span><span class=\"token number\">42<\/span><span class=\"token punctuation\">)<\/span>\r\n    email <span class=\"token operator\">=<\/span> models<span class=\"token punctuation\">.<\/span>EmailField<span class=\"token punctuation\">(<\/span>max_length<span class=\"token operator\">=<\/span><span class=\"token number\">75<\/span><span class=\"token punctuation\">)<\/span>\r\n    website <span class=\"token operator\">=<\/span> models<span class=\"token punctuation\">.<\/span>URLField<span class=\"token punctuation\">(<\/span>max_length<span class=\"token operator\">=<\/span><span class=\"token number\">200<\/span><span class=\"token punctuation\">,<\/span> null<span class=\"token operator\">=<\/span><span class=\"token boolean\">True<\/span><span class=\"token punctuation\">,<\/span> blank<span class=\"token operator\">=<\/span><span class=\"token boolean\">True<\/span><span class=\"token punctuation\">)<\/span>\r\n    content <span class=\"token operator\">=<\/span> models<span class=\"token punctuation\">.<\/span>TextField<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n    post <span class=\"token operator\">=<\/span> models<span class=\"token punctuation\">.<\/span>ForeignKey<span class=\"token punctuation\">(<\/span>Post<span class=\"token punctuation\">,<\/span> on_delete<span class=\"token operator\">=<\/span>models<span class=\"token punctuation\">.<\/span>CASCADE<span class=\"token punctuation\">)<\/span>\r\n    created_on <span class=\"token operator\">=<\/span> models<span class=\"token punctuation\">.<\/span>DateTimeField<span class=\"token punctuation\">(<\/span>auto_now_add<span class=\"token operator\">=<\/span><span class=\"token boolean\">True<\/span><span class=\"token punctuation\">)<\/span>\r\n<\/code><\/pre>\n<p>\u6b64\u65f6\uff0cmodels.py\u5c06\u4f1a\u5b8c\u6210\u3002\u786e\u4fdd\u4f60\u7684models.py\u6587\u4ef6\u4e0e\u4ee5\u4e0b\u5185\u5bb9\u4e00\u81f4\u3002<\/p>\n<div>\u6a21\u578b.py<\/p>\n<p>\u8fd9\u662f\u6587\u7ae0\u300a\u5982\u4f55\u521b\u5efaDjango\u6a21\u578b\u300b\u7684\u7b2c4\u90e8\u5206\uff08\u51717\u90e8\u5206\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"token keyword\">from<\/span> django<span class=\"token punctuation\">.<\/span>db <span class=\"token keyword\">import<\/span> models\r\n<span class=\"token keyword\">from<\/span> django<span class=\"token punctuation\">.<\/span>template<span class=\"token punctuation\">.<\/span>defaultfilters <span class=\"token keyword\">import<\/span> slugify\r\n<span class=\"token keyword\">from<\/span> django<span class=\"token punctuation\">.<\/span>contrib<span class=\"token punctuation\">.<\/span>auth<span class=\"token punctuation\">.<\/span>models <span class=\"token keyword\">import<\/span> User\r\n<span class=\"token keyword\">from<\/span> django<span class=\"token punctuation\">.<\/span>urls <span class=\"token keyword\">import<\/span> reverse\r\n\r\n\r\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Post<\/span><span class=\"token punctuation\">(<\/span>models<span class=\"token punctuation\">.<\/span>Model<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span>\r\n    title <span class=\"token operator\">=<\/span> models<span class=\"token punctuation\">.<\/span>CharField<span class=\"token punctuation\">(<\/span>max_length<span class=\"token operator\">=<\/span><span class=\"token number\">255<\/span><span class=\"token punctuation\">)<\/span>\r\n    slug <span class=\"token operator\">=<\/span> models<span class=\"token punctuation\">.<\/span>SlugField<span class=\"token punctuation\">(<\/span>unique<span class=\"token operator\">=<\/span><span class=\"token boolean\">True<\/span><span class=\"token punctuation\">,<\/span> max_length<span class=\"token operator\">=<\/span><span class=\"token number\">255<\/span><span class=\"token punctuation\">)<\/span>\r\n    content <span class=\"token operator\">=<\/span> models<span class=\"token punctuation\">.<\/span>TextField<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n    created_on <span class=\"token operator\">=<\/span> models<span class=\"token punctuation\">.<\/span>DateTimeField<span class=\"token punctuation\">(<\/span>auto_now_add<span class=\"token operator\">=<\/span><span class=\"token boolean\">True<\/span><span class=\"token punctuation\">)<\/span>\r\n    author <span class=\"token operator\">=<\/span> models<span class=\"token punctuation\">.<\/span>TextField<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\n    <span class=\"token keyword\">def<\/span> <span class=\"token function\">get_absolute_url<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span>\r\n        <span class=\"token keyword\">return<\/span> reverse<span class=\"token punctuation\">(<\/span><span class=\"token string\">'blog_post_detail'<\/span><span class=\"token punctuation\">,<\/span> args<span class=\"token operator\">=<\/span><span class=\"token punctuation\">[<\/span>self<span class=\"token punctuation\">.<\/span>slug<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span>\r\n    \r\n    <span class=\"token keyword\">def<\/span> <span class=\"token function\">save<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">*<\/span>args<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">**<\/span>kwargs<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span>\r\n        <span class=\"token keyword\">if<\/span> <span class=\"token keyword\">not<\/span> self<span class=\"token punctuation\">.<\/span>slug<span class=\"token punctuation\">:<\/span>\r\n            self<span class=\"token punctuation\">.<\/span>slug <span class=\"token operator\">=<\/span> slugify<span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">.<\/span>title<span class=\"token punctuation\">)<\/span>\r\n        <span class=\"token builtin\">super<\/span><span class=\"token punctuation\">(<\/span>Post<span class=\"token punctuation\">,<\/span> self<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>save<span class=\"token punctuation\">(<\/span><span class=\"token operator\">*<\/span>args<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">**<\/span>kwargs<span class=\"token punctuation\">)<\/span>\r\n\r\n    <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Meta<\/span><span class=\"token punctuation\">:<\/span>\r\n        ordering <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token string\">'created_on'<\/span><span class=\"token punctuation\">]<\/span>\r\n\r\n        <span class=\"token keyword\">def<\/span> <span class=\"token function\">__unicode__<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span>\r\n            <span class=\"token keyword\">return<\/span> self<span class=\"token punctuation\">.<\/span>title\r\n\r\n\r\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Comment<\/span><span class=\"token punctuation\">(<\/span>models<span class=\"token punctuation\">.<\/span>Model<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span>\r\n    name <span class=\"token operator\">=<\/span> models<span class=\"token punctuation\">.<\/span>CharField<span class=\"token punctuation\">(<\/span>max_length<span class=\"token operator\">=<\/span><span class=\"token number\">42<\/span><span class=\"token punctuation\">)<\/span>\r\n    email <span class=\"token operator\">=<\/span> models<span class=\"token punctuation\">.<\/span>EmailField<span class=\"token punctuation\">(<\/span>max_length<span class=\"token operator\">=<\/span><span class=\"token number\">75<\/span><span class=\"token punctuation\">)<\/span>\r\n    website <span class=\"token operator\">=<\/span> models<span class=\"token punctuation\">.<\/span>URLField<span class=\"token punctuation\">(<\/span>max_length<span class=\"token operator\">=<\/span><span class=\"token number\">200<\/span><span class=\"token punctuation\">,<\/span> null<span class=\"token operator\">=<\/span><span class=\"token boolean\">True<\/span><span class=\"token punctuation\">,<\/span> blank<span class=\"token operator\">=<\/span><span class=\"token boolean\">True<\/span><span class=\"token punctuation\">)<\/span>\r\n    content <span class=\"token operator\">=<\/span> models<span class=\"token punctuation\">.<\/span>TextField<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n    post <span class=\"token operator\">=<\/span> models<span class=\"token punctuation\">.<\/span>ForeignKey<span class=\"token punctuation\">(<\/span>Post<span class=\"token punctuation\">,<\/span> on_delete<span class=\"token operator\">=<\/span>models<span class=\"token punctuation\">.<\/span>CASCADE<span class=\"token punctuation\">)<\/span>\r\n    created_on <span class=\"token operator\">=<\/span> models<span class=\"token punctuation\">.<\/span>DateTimeField<span class=\"token punctuation\">(<\/span>auto_now_add<span class=\"token operator\">=<\/span><span class=\"token boolean\">True<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\n<\/code><\/pre>\n<p>\u8bf7\u786e\u4fdd\u4fdd\u5b58\u5e76\u5173\u95ed\u6587\u4ef6\u3002\u5982\u679c\u60a8\u5728\u4f7f\u7528nano\u7f16\u8f91\u5668\uff0c\u53ef\u4ee5\u901a\u8fc7\u6309\u4e0bCTRL\u548cX\uff0c\u7136\u540e\u6309\u4e0bY\uff0c\u7136\u540e\u6309\u4e0b\u56de\u8f66\u952e\u6765\u5b8c\u6210\u3002<\/p>\n<p>\u6709\u4e86models.py\u6587\u4ef6\u7684\u8bbe\u7f6e\uff0c\u6211\u4eec\u53ef\u4ee5\u7ee7\u7eed\u66f4\u65b0\u6211\u4eec\u7684settings.py\u6587\u4ef6\u3002<\/p>\n<h2>\u6b65\u9aa43 \u2014 \u66f4\u65b0\u8bbe\u7f6e<\/h2>\n<p>\u73b0\u5728\u6211\u4eec\u5df2\u7ecf\u5728\u5e94\u7528\u7a0b\u5e8f\u4e2d\u6dfb\u52a0\u4e86\u6a21\u578b\uff0c\u5fc5\u987b\u544a\u77e5\u9879\u76ee\u6211\u4eec\u521a\u521a\u521b\u5efa\u7684\u535a\u5ba2\u5e94\u7528\u7a0b\u5e8f\u7684\u5b58\u5728\u3002\u6211\u4eec\u901a\u8fc7\u5c06\u5b83\u6dfb\u52a0\u5230settings.py\u6587\u4ef6\u4e2d\u7684INSTALLED_APPS\u90e8\u5206\u6765\u5b9e\u73b0\u8fd9\u4e00\u70b9\u3002<\/p>\n<p>\u5bfc\u822a\u5230\u5305\u542bsettings.py\u6587\u4ef6\u7684\u76ee\u5f55\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"(env) sammy@ubuntu:$\"><span class=\"token builtin class-name\">cd<\/span> ~\/my_blog_app\/blog\/blog<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u4ece\u8fd9\u91cc\u5f00\u59cb\uff0c\u6253\u5f00settings.py\u6587\u4ef6\uff0c\u4f8b\u5982\u4f7f\u7528nano\u7f16\u8f91\u5668\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">nano<\/span> settings.py<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u6587\u4ef6\u6253\u5f00\u540e\uff0c\u6309\u7167\u4e0b\u9762\u6240\u793a\uff0c\u5728\u6587\u4ef6\u7684INSTALLED_APPS\u90e8\u5206\u4e2d\u6dfb\u52a0\u535a\u5ba2\u7ad9\u70b9\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n<div>\u914d\u7f6e\u6587\u4ef6.py<\/p>\n<pre class=\"post-pre\"><code><span class=\"token comment\"># \u5e94\u7528\u7a0b\u5e8f\u5b9a\u4e49<\/span>\r\nINSTALLED_APPS <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">[<\/span>\r\n    <mark><span class=\"token string\">'blogsite'<\/span><span class=\"token punctuation\">,<\/span><\/mark>\r\n    <span class=\"token string\">'django.contrib.admin'<\/span><span class=\"token punctuation\">,<\/span>\r\n    <span class=\"token string\">'django.contrib.auth'<\/span><span class=\"token punctuation\">,<\/span>\r\n    <span class=\"token string\">'django.contrib.contenttypes'<\/span><span class=\"token punctuation\">,<\/span>\r\n    <span class=\"token string\">'django.contrib.sessions'<\/span><span class=\"token punctuation\">,<\/span>\r\n    <span class=\"token string\">'django.contrib.messages'<\/span><span class=\"token punctuation\">,<\/span>\r\n    <span class=\"token string\">'django.contrib.staticfiles'<\/span><span class=\"token punctuation\">,<\/span>\r\n<span class=\"token punctuation\">]<\/span>\r\n<\/code><\/pre>\n<p>\u6dfb\u52a0\u535a\u5ba2\u5e94\u7528\u7a0b\u5e8f\u540e\uff0c\u4fdd\u5b58\u5e76\u9000\u51fa\u6587\u4ef6\u3002<\/p>\n<p>\u6b64\u65f6\uff0c\u6211\u4eec\u5df2\u7ecf\u51c6\u5907\u597d\u5f00\u59cb\u5e94\u7528\u8fd9\u4e9b\u66f4\u6539\u3002<\/p>\n<h2>\u7b2c\u56db\u6b65 &#8211; \u8fdb\u884c\u8fc1\u79fb\u64cd\u4f5c<\/h2>\n<p>\u5728\u6a21\u578b\u4e2d\u6dfb\u52a0\u4e86Post\u548cComment\u4e4b\u540e\uff0c\u4e0b\u4e00\u6b65\u662f\u5e94\u7528\u8fd9\u4e9b\u66f4\u6539\uff0c\u4f7fMySQL\u6570\u636e\u5e93\u67b6\u6784\u80fd\u591f\u8bc6\u522b\u5b83\u4eec\u5e76\u521b\u5efa\u6240\u9700\u7684\u8868\u683c\u3002<\/p>\n<p>\u9996\u5148\uff0c\u6211\u4eec\u5fc5\u987b\u4f7f\u7528makemigrations\u547d\u4ee4\u5c06\u6a21\u578b\u66f4\u6539\u6253\u5305\u6210\u5355\u72ec\u7684\u8fc1\u79fb\u6587\u4ef6\u3002\u8fd9\u4e9b\u6587\u4ef6\u7c7b\u4f3c\u4e8eGit\u8fd9\u6837\u7684\u7248\u672c\u63a7\u5236\u7cfb\u7edf\u4e2d\u7684\u63d0\u4ea4\u3002<\/p>\n<p>\u73b0\u5728\uff0c\u5982\u679c\u5bfc\u822a\u5230~\/my_blog_app\/blog\/blogsite\/migrations\u76ee\u5f55\u5e76\u8fd0\u884cls\u547d\u4ee4\uff0c\u4f1a\u53d1\u73b0\u53ea\u6709\u4e00\u4e2a__init__.py\u6587\u4ef6\u3002\u4e00\u65e6\u6211\u4eec\u6dfb\u52a0\u4e86\u8fc1\u79fb\uff0c\u8fd9\u79cd\u60c5\u51b5\u5c06\u4f1a\u6539\u53d8\u3002<\/p>\n<p>\u4f7f\u7528cd\u547d\u4ee4\u5207\u6362\u5230\u535a\u5ba2\u76ee\u5f55\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"(env) sammy@ubuntu:$\"><span class=\"token builtin class-name\">cd<\/span> ~\/my_blog_app\/blog<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u7136\u540e\u5728manage.py\u6587\u4ef6\u4e0a\u8fd0\u884cmakemigrations\u547d\u4ee4\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"(env) sammy@ubuntu:$\">python manage.py makemigrations<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5e94\u8be5\u5728\u7ec8\u7aef\u7a97\u53e3\u4e2d\u770b\u5230\u4ee5\u4e0b\u8f93\u51fa\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>Migrations for &#8216;blogsite&#8217;: blogsite\/migrations\/0001_initial.py &#8211; Create model Post &#8211; Create model Comment<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u8fd8\u8bb0\u5f97\u5f53\u6211\u4eec\u5bfc\u822a\u5230~\/my_blog_app\/blog\/blogsite\/migrations\u76ee\u5f55\u65f6\uff0c\u91cc\u9762\u53ea\u6709\u4e00\u4e2a__init__.py\u6587\u4ef6\u5417\uff1f\u5982\u679c\u73b0\u5728\u8fd4\u56de\u8be5\u76ee\u5f55\uff0c\u4f1a\u6ce8\u610f\u5230\u5df2\u7ecf\u6dfb\u52a0\u4e86\u4e24\u4e2a\u9879\u76ee\uff1a__pycache__\u548c0001_initial.py\u3002\u8fd0\u884cmakemigrations\u65f6\uff0c0001_initial.py\u6587\u4ef6\u4f1a\u81ea\u52a8\u751f\u6210\u3002\u6bcf\u6b21\u8fd0\u884cmakemigrations\u65f6\uff0c\u90fd\u4f1a\u751f\u6210\u7c7b\u4f3c\u7684\u6587\u4ef6\u3002<\/p>\n<p>\u5982\u679c\u60a8\u60f3\u67e5\u770b\u8be5\u6587\u4ef6\u7684\u5185\u5bb9\uff0c\u8bf7\u5728\u6240\u5728\u76ee\u5f55\u4e2d\u4f7f\u7528cat\u547d\u4ee4\u67e5\u770b0001_initial.py\u6587\u4ef6\u3002<\/p>\n<p>\u73b0\u5728\u5bfc\u822a\u5230~\/my_blog_app\/blog\u76ee\u5f55\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token builtin class-name\">cd<\/span> ~\/my_blog_app\/blog<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u65e2\u7136\u5df2\u7ecf\u521b\u5efa\u4e86\u8fc1\u79fb\u6587\u4ef6\uff0c\u6211\u4eec\u5fc5\u987b\u4f7f\u7528migrate\u547d\u4ee4\u5c06\u8fd9\u4e9b\u6587\u4ef6\u6240\u63cf\u8ff0\u7684\u4fee\u6539\u5e94\u7528\u5230\u6570\u636e\u5e93\u4e2d\u3002\u4f46\u9996\u5148\u8ba9\u6211\u4eec\u4f7f\u7528showmigrations\u547d\u4ee4\u6765\u68c0\u67e5\u5f53\u524d\u5b58\u5728\u7684\u8fc1\u79fb\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"(env) sammy@ubuntu:$\">python manage.py showmigrations<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>admin [X] 0001_initial [X] 0002_logentry_remove_auto_add [X] 0003_logentry_add_action_flag_choices auth [X] 0001_initial [X] 0002_alter_permission_name_max_length [X] 0003_alter_user_email_max_length [X] 0004_alter_user_username_opts [X] 0005_alter_user_last_login_null [X] 0006_require_contenttypes_0002 [X] 0007_alter_validators_add_error_messages [X] 0008_alter_user_username_max_length [X] 0009_alter_user_last_name_max_length [X] 0010_alter_group_name_max_length [X] 0011_update_proxy_permissions blogsite [ ] 0001_initial contenttypes [X] 0001_initial [X] 0002_remove_content_type_name sessions [X] 0001_initial<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u4f1a\u6ce8\u610f\u5230\u9664\u4e86\u6211\u4eec\u521a\u521a\u7528\u6a21\u578bPost\u548cComment\u521b\u5efa\u76840001_initial\u8fc1\u79fb\u4e4b\u5916\uff0c\u6240\u6709\u7684\u8fc1\u79fb\u90fd\u88ab\u6807\u8bb0\u4e3a\u5df2\u5e94\u7528\u3002<\/p>\n<p>\u73b0\u5728\u8ba9\u6211\u4eec\u68c0\u67e5\u4e00\u4e0b\uff0c\u5728\u8fdb\u884c\u8fc1\u79fb\u65f6\u4f1a\u6267\u884c\u54ea\u4e9bSQL\u8bed\u53e5\uff0c\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u3002\u8be5\u547d\u4ee4\u9700\u8981\u63a5\u53d7\u5e94\u7528\u7a0b\u5e8f\u540d\u79f0\u548c\u8fc1\u79fb\u540d\u79f0\u4f5c\u4e3a\u53c2\u6570\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"(env) sammy@ubuntu:$\">python manage.py sqlmigrate blogsite 0001_initial<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u4e0b\u9762\u663e\u793a\u7684\u662f\u5728\u540e\u53f0\u6267\u884c\u7684\u5b9e\u9645SQL\u67e5\u8be2\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code>\r\n-- -- Create model Post -- CREATE TABLE `blogsite_post` (`id` integer AUTO_INCREMENT NOT NULL PRIMARY KEY, `title` varchar(255) NOT NULL, `slug` varchar(255) NOT NULL UNIQUE, `content` longtext NOT NULL, `created_on` datetime(6) NOT NULL, `author` longtext NOT NULL); -- -- Create model Comment -- CREATE TABLE `blogsite_comment` (`id` integer AUTO_INCREMENT NOT NULL PRIMARY KEY, `name` varchar(42) NOT NULL, `email` varchar(75) NOT NULL, `website` varchar(200) NULL, `content` longtext NOT NULL, `created_on` datetime(6) NOT NULL, `post_id` integer NOT NULL); ALTER TABLE `blogsite_comment` ADD CONSTRAINT `blogsite_comment_post_id_de248bfe_fk_blogsite_post_id` FOREIGN KEY (`post_id`) REFERENCES `blogsite_post` (`id`);\r\n<\/code><\/pre>\n<p>\u8ba9\u6211\u4eec\u73b0\u5728\u6267\u884c\u8fc1\u79fb\u64cd\u4f5c\uff0c\u4ee5\u4fbf\u5c06\u5176\u5e94\u7528\u5230\u6211\u4eec\u7684MySQL\u6570\u636e\u5e93\u4e2d\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n<ol>\r\n \t<li data-prefix=\"(env) sammy@ubuntu:$\">python manage.py migrate<\/li>\r\n<\/ol>\r\n<\/code><\/pre>\n<p>\u6211\u4eec\u5c06\u4f1a\u5f97\u5230\u4ee5\u4e0b\u7684\u8f93\u51fa\uff1a<\/p>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>\n<pre class=\"post-pre\"><code>\r\nOperations to perform: Apply all migrations: admin, auth, blogsite, contenttypes, sessions\r\nRunning migrations:\r\n  Applying blogsite.0001_initial... OK\r\n<\/code><\/pre>\n<p>\u4f60\u73b0\u5728\u5df2\u6210\u529f\u5e94\u7528\u4e86\u8fc1\u79fb\u3002<\/p>\n<p>\u9700\u8981\u7262\u8bb0\u7684\u662f\uff0c\u6839\u636eDjango\u6587\u6863\u6240\u8ff0\uff0c\u5728\u4f7f\u7528MySQL\u4f5c\u4e3a\u540e\u7aef\u65f6\uff0cDjango\u8fc1\u79fb\u5b58\u5728\u4e09\u4e2a\u6ce8\u610f\u4e8b\u9879\u3002<\/p>\n<ul class=\"post-ul\">\n<li>\u7f3a\u4e4f\u5bf9\u6a21\u5f0f\u66f4\u6539\u64cd\u4f5c\u5468\u56f4\u4e8b\u52a1\u7684\u652f\u6301\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u5982\u679c\u8fc1\u79fb\u672a\u80fd\u6210\u529f\u5e94\u7528\uff0c\u60a8\u5c06\u5fc5\u987b\u624b\u52a8\u64a4\u9500\u6240\u505a\u7684\u66f4\u6539\uff0c\u624d\u80fd\u5c1d\u8bd5\u53e6\u4e00\u6b21\u8fc1\u79fb\u3002\u65e0\u6cd5\u56de\u6eda\u5230\u5931\u8d25\u8fc1\u79fb\u4e2d\u4efb\u4f55\u66f4\u6539\u4e4b\u524d\u7684\u65e9\u671f\u72b6\u6001\u3002<\/li>\n<li>\u5bf9\u4e8e\u5927\u591a\u6570\u6a21\u5f0f\u66f4\u6539\u64cd\u4f5c\uff0cMySQL\u5c06\u5b8c\u5168\u91cd\u5199\u8868\u3002\u5728\u6700\u574f\u7684\u60c5\u51b5\u4e0b\uff0c\u65f6\u95f4\u590d\u6742\u5ea6\u5c06\u4e0e\u8868\u4e2d\u8981\u6dfb\u52a0\u6216\u5220\u9664\u7684\u884c\u6570\u6210\u6b63\u6bd4\u3002\u6839\u636eDjango\u6587\u6863\uff0c\u8fd9\u53ef\u80fd\u6162\u5230\u6bcf\u767e\u4e07\u884c\u4e00\u5206\u949f\u3002<\/li>\n<li>\u5728MySQL\u4e2d\uff0c\u5bf9\u5217\u3001\u8868\u548c\u7d22\u5f15\u7684\u540d\u79f0\u957f\u5ea6\u5b58\u5728\u8f83\u5c0f\u7684\u9650\u5236\u3002\u5bf9\u6240\u6709\u5217\u548c\u7d22\u5f15\u8986\u76d6\u7684\u7ec4\u5408\u5927\u5c0f\u4e5f\u6709\u9650\u5236\u3002\u867d\u7136\u5176\u4ed6\u4e00\u4e9b\u540e\u7aef\u53ef\u4ee5\u652f\u6301Django\u4e2d\u521b\u5efa\u7684\u66f4\u9ad8\u9650\u5236\uff0c\u4f46\u4f7f\u7528MySQL\u540e\u7aef\u65f6\u5c06\u65e0\u6cd5\u521b\u5efa\u76f8\u540c\u7684\u7d22\u5f15\u3002<\/li>\n<\/ul>\n<p>\u5728\u8003\u8651\u4e0eDjango\u4e00\u8d77\u4f7f\u7528\u7684\u6bcf\u4e2a\u6570\u636e\u5e93\u65f6\uff0c\u4e00\u5b9a\u8981\u6743\u8861\u6bcf\u4e2a\u6570\u636e\u5e93\u7684\u4f18\u7f3a\u70b9\u3002<\/p>\n<h2>\u7b2c\u4e94\u6b65\u2014\u2014\u9a8c\u8bc1\u6570\u636e\u5e93\u67b6\u6784<\/h2>\n<p>\u5b8c\u6210\u8fc1\u79fb\u4e4b\u540e\uff0c\u6211\u4eec\u5e94\u8be5\u9a8c\u8bc1\u901a\u8fc7 Django \u6a21\u578b\u521b\u5efa\u7684 MySQL \u8868\u683c\u662f\u5426\u6210\u529f\u751f\u6210\u3002<\/p>\n<p>\u8981\u5b9e\u73b0\u8fd9\u4e00\u70b9\uff0c\u5728\u7ec8\u7aef\u4e2d\u8fd0\u884c\u4ee5\u4e0b\u547d\u4ee4\u6765\u767b\u5f55\u5230MySQL\u3002\u6211\u4eec\u5c06\u4f7f\u7528\u4e4b\u524d\u6559\u7a0b\u4e2d\u521b\u5efa\u7684djangouser\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n<ol>\r\n \t<li data-prefix=\"(env) sammy@ubuntu:$\">mysql blog_data <span class=\"token parameter variable\">-u<\/span> <mark>djangouser<\/mark><\/li>\r\n<\/ol>\r\n<\/code><\/pre>\n<p>\u73b0\u5728\uff0c\u9009\u62e9\u6211\u4eec\u7684\u6570\u636e\u5e93blog_data\u3002\u5982\u679c\u4f60\u4e0d\u77e5\u9053\u6b63\u5728\u4f7f\u7528\u7684\u6570\u636e\u5e93\uff0c\u4f60\u53ef\u4ee5\u5728SQL\u4e2d\u4f7f\u7528SHOW DATABASES;\u547d\u4ee4\u663e\u793a\u6240\u6709\u6570\u636e\u5e93\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n<ol>\r\n \t<li data-prefix=\"mysql&gt;\">USE blog_data<span class=\"token punctuation\">;<\/span><\/li>\r\n<\/ol>\r\n<\/code><\/pre>\n<p>\u7136\u540e\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\u6765\u67e5\u770b\u8868\u683c\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n<ol>\r\n \t<li data-prefix=\"mysql&gt;\">SHOW TABLES<span class=\"token punctuation\">;<\/span><\/li>\r\n<\/ol>\r\n<\/code><\/pre>\n<p>\u8fd9\u4e2aSQL\u67e5\u8be2\u5e94\u8be5\u663e\u793a\u4ee5\u4e0b\u5185\u5bb9\uff1a<\/p>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>\n<pre class=\"post-pre\"><code>\r\n+----------------------------+\r\n| Tables_in_blog_data        |\r\n+----------------------------+\r\n| auth_group                 |\r\n| auth_group_permissions     |\r\n| auth_permission            |\r\n| auth_user                  |\r\n| auth_user_groups           |\r\n| auth_user_user_permissions |\r\n| blogsite_comment           |\r\n| blogsite_post              |\r\n| django_admin_log           |\r\n| django_content_type        |\r\n| django_migrations          |\r\n| django_session             |\r\n+----------------------------+\r\n12 rows in set (0.01 sec)\r\n<\/code><\/pre>\n<p>\u5728\u8868\u683c\u4e2d\u6709blogsite_comment\u548cblogsite_post\u3002\u8fd9\u4e9b\u662f\u6211\u4eec\u521a\u521a\u81ea\u5df1\u521b\u5efa\u7684\u6a21\u578b\u3002\u8ba9\u6211\u4eec\u9a8c\u8bc1\u4e00\u4e0b\u5b83\u4eec\u662f\u5426\u5305\u542b\u6211\u4eec\u5b9a\u4e49\u7684\u5b57\u6bb5\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n<ol>\r\n \t<li data-prefix=\"mysql&gt;\">DESCRIBE blogsite_comment<span class=\"token punctuation\">;<\/span><\/li>\r\n<\/ol>\r\n<\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>\n<p>\u8fd9\u662f\u6587\u7ae0\u300a\u5982\u4f55\u521b\u5efaDjango\u6a21\u578b\u300b\u7684\u7b2c7\u90e8\u5206\uff08\u51717\u90e8\u5206\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code>+------------+--------------+------+-----+---------+----------------+\r\n| Field      | Type         | Null | Key | Default | Extra          |\r\n+------------+--------------+------+-----+---------+----------------+\r\n| id         | int          | NO   | PRI | NULL    | auto_increment |\r\n| name       | varchar(42)  | NO   |     | NULL    |                |\r\n| email      | varchar(75)  | NO   |     | NULL    |                |\r\n| website    | varchar(200) | YES  |     | NULL    |                |\r\n| content    | longtext     | NO   |     | NULL    |                |\r\n| created_on | datetime(6)  | NO   |     | NULL    |                |\r\n| post_id    | int          | NO   | MUL | NULL    |                |\r\n+------------+--------------+------+-----+---------+----------------+\r\n7 \u884c\u8bb0\u5f55 (0.00 \u79d2)<\/code><\/pre>\n<ol>\n<li data-prefix=\"mysql&gt;\">DESCRIBE blogsite_post<span class=\"token punctuation\">;<\/span><\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/div>\n<pre class=\"post-pre\"><code>+------------+--------------+------+-----+---------+----------------+\r\n| Field      | Type         | Null | Key | Default | Extra          |\r\n+------------+--------------+------+-----+---------+----------------+\r\n| id         | int          | NO   | PRI | NULL    | auto_increment |\r\n| title      | varchar(255) | NO   |     | NULL    |                |\r\n| slug       | varchar(255) | NO   | UNI | NULL    |                |\r\n| content    | longtext     | NO   |     | NULL    |                |\r\n| created_on | datetime(6)  | NO   |     | NULL    |                |\r\n| author     | longtext     | NO   |     | NULL    |                |\r\n+------------+--------------+------+-----+---------+----------------+\r\n6 \u884c\u8bb0\u5f55 (0.00 \u79d2)<\/code><\/pre>\n<p>\u6211\u4eec\u5df2\u7ecf\u9a8c\u8bc1\u4e86\u6570\u636e\u5e93\u8868\u683c\u662f\u901a\u8fc7\u6211\u4eec\u7684Django\u6a21\u578b\u8fc1\u79fb\u6210\u529f\u751f\u6210\u7684\u3002<\/p>\n<p>\u5f53\u4f60\u60f3\u8981\u5173\u95edMySQL\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528CTRL + D\u7684\u7ec4\u5408\u952e\u3002\u5f53\u4f60\u51c6\u5907\u79bb\u5f00Python\u73af\u5883\u65f6\uff0c\u53ef\u4ee5\u8fd0\u884cdeactivate\u547d\u4ee4\u3002<\/p>\n<ol>\n<li data-prefix=\"(my_env) 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