{"id":5724,"date":"2022-04-03T07:30:41","date_gmt":"2022-04-02T23:30:41","guid":{"rendered":"https:\/\/egonlin.com\/?p=5724"},"modified":"2022-04-26T14:31:23","modified_gmt":"2022-04-26T06:31:23","slug":"06-07-contenttype%e7%bb%84%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/egonlin.com\/?p=5724","title":{"rendered":"06-07 ContentType\u7ec4\u4ef6"},"content":{"rendered":"<h1>\u672c\u6587\u76ee\u5f55<\/h1>\n<pre><code>\u4e00 \u9879\u76ee\u80cc\u666f\n\u4e8c \u7248\u672c\u4e00\n\u4e09 \u7248\u672c\u4e8c\n\u56db \u6700\u7ec8\u7248\uff08\u4f7f\u7528ContentType\uff09<\/code><\/pre>\n<h2>\u4e00 \u9879\u76ee\u80cc\u666f<\/h2>\n<p>Egon\u661f\u7403\u9879\u76ee\uff0c\u6709\u8bfe\u7a0b\uff0c\u5b66\u4f4d\u8bfe\uff08\u4e0d\u540c\u7684\u8bfe\u7a0b\u5b57\u6bb5\u4e0d\u4e00\u6837\uff09\uff0c\u4ef7\u683c\u7b56\u7565<\/p>\n<p>\u95ee\u9898\uff0c1 \u5982\u4f55\u8bbe\u8ba1\u8868\u7ed3\u6784\uff0c\u6765\u8868\u793a\u8fd9\u79cd\u89c4\u5219<br \/>\n\u3000 2 \u4e3a\u4e13\u9898\u8bfe\uff0c\u6dfb\u52a0\u4e09\u4e2a\u4ef7\u683c\u7b56\u7565<br \/>\n3 \u67e5\u8be2\u6240\u6709\u4ef7\u683c\u7b56\u7565\uff0c\u5e76\u4e14\u663e\u793a\u5bf9\u5e94\u7684\u8bfe\u7a0b\u540d\u79f0<br \/>\n4 \u901a\u8fc7\u8bfe\u7a0bid\uff0c\u83b7\u53d6\u8bfe\u7a0b\u4fe1\u606f\u548c\u4ef7\u683c\u7b56\u7565<\/p>\n<h2>\u4e8c \u7248\u672c\u4e00<\/h2>\n<p>\u4e00\u4e2a\u8bfe\u7a0b\u8868\uff0c\u5305\u542b\u5b66\u4f4d\u8bfe\u548c\u4e13\u9898\u8bfe\uff0c\u4e00\u4e2a\u4ef7\u683c\u7b56\u7565\u8868\uff0c\u4e00\u5bf9\u591a\u5173\u8054<br \/>\n<div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2022\/04\/ContentType\u7ec4\u4ef61.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/04\/ContentType\u7ec4\u4ef61.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" \/><\/div><\/p>\n<h2>\u4e09 \u7248\u672c\u4e8c<\/h2>\n<p>\u5b66\u4f4d\u8bfe\u8868\uff0c\u4e13\u9898\u8bfe\u8868\uff0c\u88c5\u903c\u8bfe\u8868\uff0c\u4ef7\u683c\u7b56\u7565\u8868\uff08\u5728\u4ef7\u683c\u7b56\u7565\u8bfe\u8868\u4e2d\u52a0\u5165\u591a\u4e2aFK\u8ddf\u8bfe\u7a0b\u8868\u505a\u5173\u8054\uff09\uff1a\u540e\u671f\u518d\u52a0\u5176\u5b83\u8bfe\u7a0b\uff0c\u53ef\u7ef4\u62a4\u6027\u5dee<br \/>\n<div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2022\/04\/ContentType\u7ec4\u4ef62.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/04\/ContentType\u7ec4\u4ef62.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" \/><\/div><\/p>\n<h2>\u56db \u6700\u7ec8\u7248\uff08\u4f7f\u7528ContentType\uff09<\/h2>\n<p>\u901a\u8fc7Django\u63d0\u4f9b\u7684ContentType\u8868\uff0c\u6765\u6784\u5efa<\/p>\n<h4>models\u5c42\u521b\u5efa\uff1a<\/h4>\n<pre><code>from django.db import models\nfrom django.contrib.contenttypes.models import ContentType\nfrom django.contrib.contenttypes.fields import GenericForeignKey, GenericRelation\n\nclass Course(models.Model):\n    title = models.CharField(max_length=32)\n    # \u4e0d\u4f1a\u5728\u6570\u636e\u5e93\u4e2d\u751f\u6210\u5b57\u6bb5\uff0c\u53ea\u7528\u4e8e\u6570\u636e\u5e93\u64cd\u4f5c\n    # policy = GenericRelation('PricePolicy',object_id_field='object_id',content_type_field='contentType')\n\nclass DegreeCourse(models.Model):\n    title = models.CharField(max_length=32)\n\nclass PricePolicy(models.Model):\n    # \u8ddfContentType\u8868\u505a\u5916\u952e\u5173\u8054\n    contentType = models.ForeignKey(to=ContentType)\n    # \u6b63\u6570\n    object_id = models.PositiveIntegerField()\n\n    # \u5f15\u5165\u4e00\u4e2a\u5b57\u6bb5\uff0c\u4e0d\u4f1a\u5728\u6570\u636e\u5e93\u4e2d\u521b\u5efa\uff0c\u53ea\u7528\u6765\u505a\u6570\u636e\u5e93\u64cd\u4f5c\n    # content_obj = GenericForeignKey('contentType', 'object_id')\n\n    period = models.CharField(max_length=32)\n    price = models.FloatField()<\/code><\/pre>\n<div id=\"rml_readmorelogin_placeholder\" style=\"position:relative;\"><div id=\"rml_fade_content\" style=\"position: absolute;\r\ntop:-10em;\r\nwidth:100%;\r\nheight:10em;\r\nbackground: -webkit-linear-gradient(rgba(255, 255, 255, 0) 0%,#ffffff 100%);\r\nbackground-image: -moz-linear-gradient(rgba(255, 255, 255, 0) 0%,#ffffff 100%);\r\nbackground-image: -o-linear-gradient(rgba(255, 255, 255, 0) 0%,#ffffff 100%);\r\nbackground-image: linear-gradient(rgba(255, 255, 255, 0) 0%,#ffffff 100%);\r\nbackground-image: -ms-linear-gradient(rgba(255, 255, 255, 0) 0%,#ffffff 100%);\"><\/div><div class=\"wpf-controller aru_rml_from_in_post\" style=\"background-color:#eeeeee;border:5px solid #cce6ff;\" id=\"ARU_ReadMoreLogin_ReadMoreLoginController\"><h2 id=\"Header\">\u67e5\u770b\u66f4\u591a<\/h2><div id=\"Message\"><p>\u8054\u7cfb\u7ba1\u7406\u5458\u5fae\u4fe1tutu19192010\uff0c\u6ce8\u518c\u8d26\u53f7<\/p>\n<\/div><div id=\"StatusBarHeader\"><\/div><form id=\"ARU_ReadMoreLogin_ReadMoreLoginController\"><input name=\"post_id\" value=\"5724\" type=\"hidden\"\/><input name=\"_init_callback\" value=\"InitLogin\" type=\"hidden\"\/><input name=\"post_id\" value=\"5724\" type=\"hidden\"\/><input name=\"rt_ype\" value=\"1\" type=\"hidden\"\/><input name=\"nonce\" value=\"7c5b75035e\" type=\"hidden\"\/><input name=\"_wpnonce\" value=\"f48666364f\" type=\"hidden\"\/><input name=\"_controller\" value=\"ARU_ReadMoreLogin\\ReadMoreLoginController\" type=\"hidden\"\/><input name=\"_proxy_controller\" value=\"ARU_ReadMoreLogin\\ReadMoreLoginController\" type=\"hidden\"\/><input name=\"_view\" value=\"ARU_ReadMoreLogin\\ReadMoreLoginView\" type=\"hidden\"\/><table class=\"wpf-table-placeholder\"><tbody class=\"wpf-table-placeholder\"><tr class=\"wpf-table-placeholder\"><td class=\"wpf-table-placeholder-input\" width=\"400px\"><table class=\"wpf-table-placeholder\"><tbody class=\"wpf-table-placeholder\"><tr class=\"wpf-table-placeholder\"><th class=\"wpf-table-placeholder-input\"><label class=\"wpf-label\">Username:<\/label><\/th><\/tr><tr class=\"wpf-table-placeholder\"><td class=\"wpf-table-placeholder-input\"><input class=\"regular-text text_input\" name=\"username\" value=\"\" type=\"text\"\/><\/td><\/tr><tr class=\"wpf-table-placeholder\"><th class=\"wpf-table-placeholder-input\"><label class=\"wpf-label\">Password:<\/label><\/th><\/tr><tr class=\"wpf-table-placeholder\"><td class=\"wpf-table-placeholder-input\"><input class=\"regular-text text_input\" name=\"password\" value=\"\" type=\"password\"\/><\/td><\/tr><\/tbody><\/table><p class=\"wpf-table-placeholder submit\"><button class=\"wp_plugin_framework_ajax_button\" type=\"button\" style=\"background-color:#4D90FE;;color:#ffffff;;border:1px solid #3079ed;\" name=\"_event\" value=\"ButtonLogin\">Log in<\/button><\/p><\/td><td class=\"wpf-table-placeholder-input\"><\/td><\/tr><\/tbody><\/table><\/form><div id=\"ButtonStartRegister\"><a href=\"https:\/\/egonlin.com\/wp-login.php?action=register\">Register<\/a><\/div><div id=\"Link1\"><a href=\"https:\/\/egonlin.com\/wp-login.php?action=lostpassword\">Forgotten username or password?<\/a><\/div><div id=\"StatusBarFooter\"><\/div><\/div><\/div><div id=aru_remaining_content><\/div>","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u76ee\u5f55 \u4e00 \u9879\u76ee\u80cc\u666f \u4e8c \u7248\u672c\u4e00 \u4e09 \u7248\u672c\u4e8c \u56db \u6700\u7ec8\u7248\uff08\u4f7f\u7528ContentType\uff09 \u4e00 \u9879\u76ee\u80cc\u666f Ego [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":5725,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[385,388],"tags":[],"_links":{"self":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/5724"}],"collection":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5724"}],"version-history":[{"count":0,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/5724\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/media\/5725"}],"wp:attachment":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5724"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5724"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5724"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}