{"id":46578,"date":"2019-12-25T08:38:44","date_gmt":"2019-12-25T00:38:44","guid":{"rendered":"http:\/\/www.jiloc.com\/?p=46578"},"modified":"2019-12-25T08:38:45","modified_gmt":"2019-12-25T00:38:45","slug":"django%e6%95%b0%e6%8d%ae%e5%ba%93%e5%88%86%e8%a1%a8%e4%bb%a3%e7%a0%81%e5%ae%9e%e4%be%8b","status":"publish","type":"post","link":"http:\/\/jiloc.com\/46578.html","title":{"rendered":"Django\u6570\u636e\u5e93\u5206\u8868\u4ee3\u7801\u5b9e\u4f8b"},"content":{"rendered":"\n<p><strong>app\u540d\u79f0\u4e3a\u2018core\u2019\uff0c\u57fa\u672c\u7684models.py\u6587\u4ef6\u5185\u5bb9\u5982\u4e0b\uff1a<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class Province(models.Model):\n    name = models.CharField(u'\u7701\u4efd\u540d\u79f0',max_length=32)\n    code = models.IntegerField(verbose_name=u'\u533a\u53f7', unique=True)\n    \n    def __unicode__(self):\n        return self.name\n    \n    class Meta:\n        verbose_name = u'\u7701\u4efd\u5217\u8868'\n        verbose_name_plural = u'\u7701\u4efd\u5217\u8868'<\/code><\/pre>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_65 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >\u76ee\u5f55<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"http:\/\/jiloc.com\/46578.html\/#%E6%B3%95I\" title=\"\u6cd5I:\">\u6cd5I:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"http:\/\/jiloc.com\/46578.html\/#%E6%B3%95II%EF%BC%9A\" title=\"\u6cd5II\uff1a\">\u6cd5II\uff1a<\/a><\/li><\/ul><\/nav><\/div>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%B3%95I\"><\/span><strong>\u6cd5I:<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u91cd\u6784 manager \u4e2d\u7684 get_query_set() \u65b9\u6cd5\u3002<\/p>\n\n\n\n<p>\u9700\u8981\u8bf4\u660e\u7684\u662f\uff1a<strong>\u5728 django \u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u4f1a\u4e3a\u6bcf\u4e00\u4e2amodels \u7c7b\u6dfb\u52a0\u4e00\u4e2a\u540d\u4e3a objects \u7684 Manager\uff0c\u8fd9\u4e2a\u5c31\u662f Province.objects.all() \u4e2d objects \u7684\u7531\u6765\u3002<\/strong><\/p>\n\n\n\n<p>\u4fee\u6539\u540e\u7684 models.py \u4ee3\u7801\u5982\u4e0b\uff0c\u8868\u7ed3\u6784\u5fc5\u987b\u4e00\u81f4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># coding:utf-8\nfrom django.db import models\n\n# Create your models here.\nclass ProvinceManager(models.Manager):\n    def get_queryset(self):\n#         return super(ProvinceManager, self).get_queryset().filter(id=1)\n        self.model._meta.db_table = 'core_province_1' # \u6211\u7684app\u540d\u4e3acore\n        return super(ProvinceManager, self).get_queryset()10         11     \nclass Province(models.Model):\n    name = models.CharField(u'\u7701\u4efd\u540d\u79f0',max_length=32)\n    code = models.IntegerField(verbose_name=u'\u533a\u53f7', unique=True)\n    \n    objects = ProvinceManager()\n    \n    def __unicode__(self):\n        return self.name\n    \n    class Meta:\n        verbose_name = u'\u7701\u4efd\u5217\u8868'\n        verbose_name_plural = u'\u7701\u4efd\u5217\u8868'<\/code><\/pre>\n\n\n\n<p>\u53ef\u4ee5\u591a\u5199\u51e0\u4e2a Manager \u6765\u5bf9\u5e94\u4e0d\u540c\u7684\u8868\uff0c\u540c\u65f6\u5bf9\u5e94\u591a\u5199\u51e0\u4e2a\u4e0d\u540c\u7684 objects\uff08\u53ef\u4ee5\u968f\u610f\u8d77\u540d\uff09\uff0c\u5728\u8c03\u7528\u65f6\u8c03\u7528\u76f8\u5e94\u7684 Manager\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%B3%95II%EF%BC%9A\"><\/span>\u6cd5II\uff1a<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u5728\u54ea\u91cc\u8c03\u7528\u5c31\u5728\u54ea\u91cc\u66f4\u6539\u3002\u66f4\u6539\u5904\u6dfb\u52a0\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">from core.models import Province\n\nProvince._meta.db_table = 'core_prvoince_2'\nrows = Province.objects.all() <\/pre>\n\n\n\n<p><strong>\u603b\u7ed3\uff1a<\/strong><\/p>\n\n\n\n<p><strong>\u4e0d\u8bba\u54ea\u79cd\u65b9\u6cd5\uff0c\u5176\u4e3b\u8981\u8fd8\u662f\u8981\u66f4\u6539 models \u7684&nbsp;<em>_meta.db_table<\/em>&nbsp;\u7684\u503c<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>app\u540d\u79f0\u4e3a\u2018core\u2019\uff0c\u57fa\u672c\u7684models.py\u6587\u4ef6\u5185\u5bb9\u5982\u4e0b\uff1a \u6cd5I: \u91cd\u6784 manager \u4e2d\u7684 get_ [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":46299,"comment_status":"open","ping_status":"closed","sticky":false,"template":"single-with-sidebar","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[289,23,146,283],"aioseo_notices":[],"_links":{"self":[{"href":"http:\/\/jiloc.com\/wp-json\/wp\/v2\/posts\/46578"}],"collection":[{"href":"http:\/\/jiloc.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/jiloc.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/jiloc.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/jiloc.com\/wp-json\/wp\/v2\/comments?post=46578"}],"version-history":[{"count":0,"href":"http:\/\/jiloc.com\/wp-json\/wp\/v2\/posts\/46578\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/jiloc.com\/wp-json\/wp\/v2\/media\/46299"}],"wp:attachment":[{"href":"http:\/\/jiloc.com\/wp-json\/wp\/v2\/media?parent=46578"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/jiloc.com\/wp-json\/wp\/v2\/categories?post=46578"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/jiloc.com\/wp-json\/wp\/v2\/tags?post=46578"}],"curies":[{"name":"wp","href":"http:\/\/api.w.org\/{rel}","templated":true}]}}