2.\u4fe1\u53f7\u6bd4\u4e2d\u95f4\u4ef6\u7684\u533a\u522b<\/p>\n
![\"\"](\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/04\/django\u4fe1\u53f71.png\")
<\/div><\/p>\nDjango\u4e2d\u63d0\u4f9b\u4e86\u201c\u4fe1\u53f7\u8c03\u5ea6\u201d\uff0c\u7528\u4e8e\u5728\u6846\u67b6\u6267\u884c\u64cd\u4f5c\u65f6\u89e3\u8026\u3002\u901a\u4fd7\u6765\u8bb2\uff0c\u5c31\u662f\u4e00\u4e9b\u52a8\u4f5c\u53d1\u751f\u7684\u65f6\u5019\uff0c\u4fe1\u53f7\u5141\u8bb8\u7279\u5b9a\u7684\u53d1\u9001\u8005\u53bb\u63d0\u9192\u4e00\u4e9b\u63a5\u53d7\u8005\u3002<\/p>\n
![\"\"](\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/04\/django\u4fe1\u53f72.png\")
<\/div><\/p>\nDjango\u5185\u7f6e\u4fe1\u53f7<\/strong><\/h1>\nModel signals\n pre_init # django\u7684modal\u6267\u884c\u5176\u6784\u9020\u65b9\u6cd5\u524d\uff0c\u81ea\u52a8\u89e6\u53d1\n post_init # django\u7684modal\u6267\u884c\u5176\u6784\u9020\u65b9\u6cd5\u540e\uff0c\u81ea\u52a8\u89e6\u53d1\n pre_save # django\u7684modal\u5bf9\u8c61\u4fdd\u5b58\u524d\uff0c\u81ea\u52a8\u89e6\u53d1\n post_save # django\u7684modal\u5bf9\u8c61\u4fdd\u5b58\u540e\uff0c\u81ea\u52a8\u89e6\u53d1\n pre_delete # django\u7684modal\u5bf9\u8c61\u5220\u9664\u524d\uff0c\u81ea\u52a8\u89e6\u53d1\n post_delete # django\u7684modal\u5bf9\u8c61\u5220\u9664\u540e\uff0c\u81ea\u52a8\u89e6\u53d1\n m2m_changed # django\u7684modal\u4e2d\u4f7f\u7528m2m\u5b57\u6bb5\u64cd\u4f5c\u7b2c\u4e09\u5f20\u8868\uff08add,remove,clear\uff09\u524d\u540e\uff0c\u81ea\u52a8\u89e6\u53d1\n class_prepared # \u7a0b\u5e8f\u542f\u52a8\u65f6\uff0c\u68c0\u6d4b\u5df2\u6ce8\u518c\u7684app\u4e2dmodal\u7c7b\uff0c\u5bf9\u4e8e\u6bcf\u4e00\u4e2a\u7c7b\uff0c\u81ea\u52a8\u89e6\u53d1\nManagement signals\n pre_migrate # \u6267\u884cmigrate\u547d\u4ee4\u524d\uff0c\u81ea\u52a8\u89e6\u53d1\n post_migrate # \u6267\u884cmigrate\u547d\u4ee4\u540e\uff0c\u81ea\u52a8\u89e6\u53d1\nRequest\/response signals\n request_started # \u8bf7\u6c42\u5230\u6765\u524d\uff0c\u81ea\u52a8\u89e6\u53d1\n request_finished # \u8bf7\u6c42\u7ed3\u675f\u540e\uff0c\u81ea\u52a8\u89e6\u53d1\n got_request_exception # \u8bf7\u6c42\u5f02\u5e38\u540e\uff0c\u81ea\u52a8\u89e6\u53d1\nTest signals\n setting_changed # \u4f7f\u7528test\u6d4b\u8bd5\u4fee\u6539\u914d\u7f6e\u6587\u4ef6\u65f6\uff0c\u81ea\u52a8\u89e6\u53d1\n template_rendered # \u4f7f\u7528test\u6d4b\u8bd5\u6e32\u67d3\u6a21\u677f\u65f6\uff0c\u81ea\u52a8\u89e6\u53d1\nDatabase Wrappers\n connection_created # \u521b\u5efa\u6570\u636e\u5e93\u8fde\u63a5\u65f6\uff0c\u81ea\u52a8\u89e6\u53d1<\/code><\/pre>\n\u5bf9\u4e8eDjango\u5185\u7f6e\u7684\u4fe1\u53f7\uff0c\u4ec5\u9700\u5728Django\u5fc5\u5b9a\u80fd\u6267\u884c\u7684\u5730\u65b9\u6ce8\u518c\u6307\u5b9a\u4fe1\u53f7\uff0c\u5f53\u7a0b\u5e8f\u6267\u884c\u76f8\u5e94\u64cd\u4f5c\u65f6\uff0c\u81ea\u52a8\u89e6\u53d1\u6ce8\u518c\u51fd\u6570\uff1a<\/p>\n
from django.core.signals import request_finished\nfrom django.core.signals import request_started\nfrom django.core.signals import got_request_exception\nfrom django.db.models.signals import class_prepared\nfrom django.db.models.signals import pre_init, post_init\nfrom django.db.models.signals import pre_save, post_save\nfrom django.db.models.signals import pre_delete, post_delete\nfrom django.db.models.signals import m2m_changed\nfrom django.db.models.signals import pre_migrate, post_migrate\nfrom django.test.signals import setting_changed\nfrom django.test.signals import template_rendered\nfrom django.db.backends.signals import connection_created\n\ndef callback(sender, **kwargs):\n print("xxoo_callback")\n print(sender,kwargs)\nxxoo.connect(callback)\n# xxoo\u6307\u4e0a\u8ff0\u5bfc\u5165\u7684\u6a21\u5757\u540d<\/code><\/pre>\nfrom django.core.signals import request_finished\nfrom django.dispatch import receiver\n\n@receiver(request_finished)\ndef my_callback(sender, **kwargs):\n print("Request finished!")<\/code><\/pre>\n\u81ea\u5b9a\u4e49\u4fe1\u53f7<\/strong><\/h1>\n![\"\"](\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\")
<\/div><\/p>\n","protected":false},"excerpt":{"rendered":"\u4fe1\u53f7 \u629b\u7816\u5f15\u7389 1.\u5982\u4f55\u5bf9\u6570\u636e\u5e93\u7684\u589e\u52a0\u64cd\u4f5c\u8bb0\u5f55\u65e5\u5fd7 2.\u4fe1\u53f7\u6bd4\u4e2d\u95f4\u4ef6\u7684\u533a\u522b Django\u4e2d\u63d0\u4f9b\u4e86\u201c\u4fe1\u53f7\u8c03\u5ea6\u201d\uff0c […]<\/p>\n","protected":false},"author":3,"featured_media":5693,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[385,386],"tags":[],"_links":{"self":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/5692"}],"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=5692"}],"version-history":[{"count":0,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/5692\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/media\/5693"}],"wp:attachment":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5692"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5692"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5692"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Model signals\n pre_init # django\u7684modal\u6267\u884c\u5176\u6784\u9020\u65b9\u6cd5\u524d\uff0c\u81ea\u52a8\u89e6\u53d1\n post_init # django\u7684modal\u6267\u884c\u5176\u6784\u9020\u65b9\u6cd5\u540e\uff0c\u81ea\u52a8\u89e6\u53d1\n pre_save # django\u7684modal\u5bf9\u8c61\u4fdd\u5b58\u524d\uff0c\u81ea\u52a8\u89e6\u53d1\n post_save # django\u7684modal\u5bf9\u8c61\u4fdd\u5b58\u540e\uff0c\u81ea\u52a8\u89e6\u53d1\n pre_delete # django\u7684modal\u5bf9\u8c61\u5220\u9664\u524d\uff0c\u81ea\u52a8\u89e6\u53d1\n post_delete # django\u7684modal\u5bf9\u8c61\u5220\u9664\u540e\uff0c\u81ea\u52a8\u89e6\u53d1\n m2m_changed # django\u7684modal\u4e2d\u4f7f\u7528m2m\u5b57\u6bb5\u64cd\u4f5c\u7b2c\u4e09\u5f20\u8868\uff08add,remove,clear\uff09\u524d\u540e\uff0c\u81ea\u52a8\u89e6\u53d1\n class_prepared # \u7a0b\u5e8f\u542f\u52a8\u65f6\uff0c\u68c0\u6d4b\u5df2\u6ce8\u518c\u7684app\u4e2dmodal\u7c7b\uff0c\u5bf9\u4e8e\u6bcf\u4e00\u4e2a\u7c7b\uff0c\u81ea\u52a8\u89e6\u53d1\nManagement signals\n pre_migrate # \u6267\u884cmigrate\u547d\u4ee4\u524d\uff0c\u81ea\u52a8\u89e6\u53d1\n post_migrate # \u6267\u884cmigrate\u547d\u4ee4\u540e\uff0c\u81ea\u52a8\u89e6\u53d1\nRequest\/response signals\n request_started # \u8bf7\u6c42\u5230\u6765\u524d\uff0c\u81ea\u52a8\u89e6\u53d1\n request_finished # \u8bf7\u6c42\u7ed3\u675f\u540e\uff0c\u81ea\u52a8\u89e6\u53d1\n got_request_exception # \u8bf7\u6c42\u5f02\u5e38\u540e\uff0c\u81ea\u52a8\u89e6\u53d1\nTest signals\n setting_changed # \u4f7f\u7528test\u6d4b\u8bd5\u4fee\u6539\u914d\u7f6e\u6587\u4ef6\u65f6\uff0c\u81ea\u52a8\u89e6\u53d1\n template_rendered # \u4f7f\u7528test\u6d4b\u8bd5\u6e32\u67d3\u6a21\u677f\u65f6\uff0c\u81ea\u52a8\u89e6\u53d1\nDatabase Wrappers\n connection_created # \u521b\u5efa\u6570\u636e\u5e93\u8fde\u63a5\u65f6\uff0c\u81ea\u52a8\u89e6\u53d1<\/code><\/pre>\n\u5bf9\u4e8eDjango\u5185\u7f6e\u7684\u4fe1\u53f7\uff0c\u4ec5\u9700\u5728Django\u5fc5\u5b9a\u80fd\u6267\u884c\u7684\u5730\u65b9\u6ce8\u518c\u6307\u5b9a\u4fe1\u53f7\uff0c\u5f53\u7a0b\u5e8f\u6267\u884c\u76f8\u5e94\u64cd\u4f5c\u65f6\uff0c\u81ea\u52a8\u89e6\u53d1\u6ce8\u518c\u51fd\u6570\uff1a<\/p>\n
from django.core.signals import request_finished\nfrom django.core.signals import request_started\nfrom django.core.signals import got_request_exception\nfrom django.db.models.signals import class_prepared\nfrom django.db.models.signals import pre_init, post_init\nfrom django.db.models.signals import pre_save, post_save\nfrom django.db.models.signals import pre_delete, post_delete\nfrom django.db.models.signals import m2m_changed\nfrom django.db.models.signals import pre_migrate, post_migrate\nfrom django.test.signals import setting_changed\nfrom django.test.signals import template_rendered\nfrom django.db.backends.signals import connection_created\n\ndef callback(sender, **kwargs):\n print("xxoo_callback")\n print(sender,kwargs)\nxxoo.connect(callback)\n# xxoo\u6307\u4e0a\u8ff0\u5bfc\u5165\u7684\u6a21\u5757\u540d<\/code><\/pre>\nfrom django.core.signals import request_finished\nfrom django.dispatch import receiver\n\n@receiver(request_finished)\ndef my_callback(sender, **kwargs):\n print("Request finished!")<\/code><\/pre>\n\u81ea\u5b9a\u4e49\u4fe1\u53f7<\/strong><\/h1>\n<\/div><\/p>\n","protected":false},"excerpt":{"rendered":"\u4fe1\u53f7 \u629b\u7816\u5f15\u7389 1.\u5982\u4f55\u5bf9\u6570\u636e\u5e93\u7684\u589e\u52a0\u64cd\u4f5c\u8bb0\u5f55\u65e5\u5fd7 2.\u4fe1\u53f7\u6bd4\u4e2d\u95f4\u4ef6\u7684\u533a\u522b Django\u4e2d\u63d0\u4f9b\u4e86\u201c\u4fe1\u53f7\u8c03\u5ea6\u201d\uff0c […]<\/p>\n","protected":false},"author":3,"featured_media":5693,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[385,386],"tags":[],"_links":{"self":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/5692"}],"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=5692"}],"version-history":[{"count":0,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/5692\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/media\/5693"}],"wp:attachment":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5692"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5692"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5692"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![\"\"](\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/04\/django\u4fe1\u53f73.png\")
<\/div><\/p>\n","protected":false},"excerpt":{"rendered":"