{"id":6131,"date":"2022-04-05T18:33:52","date_gmt":"2022-04-05T10:33:52","guid":{"rendered":"https:\/\/egonlin.com\/?p=6131"},"modified":"2022-04-26T13:50:44","modified_gmt":"2022-04-26T05:50:44","slug":"%e7%ac%ac%e5%8d%81%e4%b8%83%e8%8a%82%ef%bc%9ahaystack","status":"publish","type":"post","link":"https:\/\/egonlin.com\/?p=6131","title":{"rendered":"\u7b2c\u5341\u4e03\u8282\uff1aHayStack"},"content":{"rendered":"

HayStack<\/h1>\n

\"\"<\/div><\/p>\n

\u4e00\u3001\u4ec0\u4e48\u662fHaystack\uff1f<\/h2>\n
\n

Haystack\u662fdjango\u7684\u5f00\u6e90\u5168\u6587\u641c\u7d22\u6846\u67b6(\u5168\u6587\u68c0\u7d22\u4e0d\u540c\u4e8e\u7279\u5b9a\u5b57\u6bb5\u7684\u6a21\u7cca\u67e5\u8be2\uff0c\u4f7f\u7528\u5168\u6587\u68c0\u7d22\u7684\u6548\u7387\u66f4\u9ad8 )\uff0c\u8be5\u6846\u67b6\u652f\u6301Solr,Elasticsearch,Whoosh, **Xapian\u641c\u7d22\u5f15\u64ce\u5b83\u662f\u4e00\u4e2a\u53ef\u63d2\u62d4\u7684\u540e\u7aef\uff08\u5f88\u50cfDjango\u7684\u6570\u636e\u5e93\u5c42\uff09\uff0c\u6240\u4ee5\u51e0\u4e4e\u4f60\u6240\u6709\u5199\u7684\u4ee3\u7801\u90fd\u53ef\u4ee5\u5728\u4e0d\u540c\u641c\u7d22\u5f15\u64ce\u4e4b\u95f4\u4fbf\u6377\u5207\u6362.<\/p>\n<\/blockquote>\n

\u4e8c\u3001\u5b89\u88c5\u914d\u7f6e<\/h2>\n

1\u3001\u5b89\u88c5<\/h3>\n
pip install django-haystack<\/code><\/pre>\n
2\u3001\u914d\u7f6e<\/h3>\n
\n
\u6dfb\u52a0Haystack\u5230INSTALLED_APPS<\/p>\n
\u8ddf\u5927\u591a\u6570Django\u7684\u5e94\u7528\u4e00\u6837\uff0c\u4f60\u5e94\u8be5\u5728\u4f60\u7684\u8bbe\u7f6e\u6587\u4ef6(\u901a\u5e38\u662fsettings.py)\u6dfb\u52a0Haystack\u5230INSTALLED_APPS<\/p>\n<\/blockquote>\n
INSTALLED_APPS = [\n    'django.contrib.admin',\n    'django.contrib.auth',\n    'django.contrib.contenttypes',\n    'django.contrib.sessions',\n    'django.contrib.sites',\n\n    # \u6dfb\u52a0\n    'haystack',\n\n    # \u4f60\u7684app\n'blog',\n]<\/code><\/pre>\n
\u4fee\u6539settings.py<\/p>\n
\n
\u5728\u4f60\u7684settings.py\u4e2d\uff0c\u4f60\u9700\u8981\u6dfb\u52a0\u4e00\u4e2a\u8bbe\u7f6e\u6765\u6307\u793a\u7ad9\u70b9\u914d\u7f6e\u6587\u4ef6\u6b63\u5728\u4f7f\u7528\u7684\u540e\u7aef\uff0c\u4ee5\u53ca\u5176\u5b83\u7684\u540e\u7aef\u8bbe\u7f6e\u3002 HAYSTACK\u2014\u2014CONNECTIONS\u662f\u5fc5\u9700\u7684\u8bbe\u7f6e\uff0c\u5e76\u4e14\u5e94\u8be5\u81f3\u5c11\u662f\u4ee5\u4e0b\u7684\u4e00\u79cd\uff1a<\/p>\n<\/blockquote>\n
Solr\u793a\u4f8b<\/p>\n
HAYSTACK_CONNECTIONS = {\n    'default': {\n        'ENGINE': 'haystack.backends.solr_backend.SolrEngine',\n        'URL': 'http:\/\/127.0.0.1:8983\/solr'\n        # ...or for multicore...\n        # 'URL': 'http:\/\/127.0.0.1:8983\/solr\/mysite',\n    },\n}<\/code><\/pre>\n
Elasticsearch\u793a\u4f8b<\/p>\n
HAYSTACK_CONNECTIONS = {\n    'default': {\n        'ENGINE': 'haystack.backends.elasticsearch_backend.ElasticsearchSearchEngine',\n        'URL': 'http:\/\/127.0.0.1:9200\/',\n        'INDEX_NAME': 'haystack',\n    },\n}<\/code><\/pre>\n
Whoosh\u793a\u4f8b<\/p>\n
#\u9700\u8981\u8bbe\u7f6ePATH\u5230\u4f60\u7684Whoosh\u7d22\u5f15\u7684\u6587\u4ef6\u7cfb\u7edf\u4f4d\u7f6e\nimport os\nHAYSTACK_CONNECTIONS = {\n    'default': {\n        'ENGINE': 'haystack.backends.whoosh_backend.WhooshEngine',\n        'PATH': os.path.join(os.path.dirname(__file__), 'whoosh_index'),\n    },\n}<\/code><\/pre>\n
Xapian\u793a\u4f8b<\/p>\n
#\u9996\u5148\u5b89\u88c5Xapian\u540e\u7aef\uff08http:\/\/github.com\/notanumber\/xapian-haystack\/tree\/master\uff09\n#\u9700\u8981\u8bbe\u7f6ePATH\u5230\u4f60\u7684Xapian\u7d22\u5f15\u7684\u6587\u4ef6\u7cfb\u7edf\u4f4d\u7f6e\u3002\nimport os\nHAYSTACK_CONNECTIONS = {\n    'default': {\n        'ENGINE': 'xapian_backend.XapianEngine',\n        'PATH': os.path.join(os.path.dirname(__file__), 'xapian_index'),\n    },\n}<\/code><\/pre>\n
\u4e09\u3001\u5904\u7406\u6570\u636e<\/h2>\n
\u521b\u5efaSearchIndexes<\/p>\n
\n
SearchIndexes\u5bf9\u8c61\u662fHaystack\u51b3\u5b9a\u90a3\u4e9b\u6570\u636e\u5e94\u8be5\u653e\u5165\u7d22\u5f15\u548c\u5904\u7406\u6d41\u6570\u636e\u7684\u65b9\u5f0f\u3002\u4f60\u53ef\u4ee5\u628a\u5b83\u4eec\u770b\u4f5c\u662fDjango\u7684Models\u6216Forms\uff0c\u5b83\u4eec\u662f\u57fa\u4e8e\u5b57\u6bb5\u548c\u6570\u636e\u64cd\u4f5c\/\u5b58\u50a8\u7684\u3002<\/p>\n
\u4f60\u901a\u5e38\u4e3a\u4f60\u671f\u671b\u7d22\u5f15\u7684\u6bcf\u4e00\u4e2aModel\u90fd\u521b\u5efa\u4e00\u4e2a\u552f\u4e00\u7684SearchIndex\u3002\u867d\u7136\u4f60\u53ef\u4ee5\u5728\u4e0d\u540c\u7684model\u4e2d\u91cd\u590d\u4f7f\u7528\u76f8\u540c\u7684SearchIndex\uff0c\u53ea\u8981\u4f60\u5c0f\u5fc3\u7684\u505a\u5e76\u4e14\u5b57\u6bb5\u540d\u5f88\u89c4\u8303\u3002<\/p>\n
\u4e3a\u4e86\u5efa\u7acbSearchIndex\uff0c\u6240\u6709\u7684\u90fd\u662findexes.SearchIndex\u548cindexe.Indexable\u7684\u5b50\u7c7b\u3002\u5b9a\u4e49\u8981\u5b58\u50a8\u6570\u636e\u7684\u5b57\u6bb5\uff0c\u5b9a\u4e49get_model\u65b9\u6cd5\u3002<\/p>\n
\u6211\u4eec\u4f1a\u5728\u4e0b\u9762\u521b\u5efa\u548cNote\u6a21\u578b\u5bf9\u5e94\u7684NoteIndex\u3002\u8fd9\u4e2a\u4ee3\u7801\u901a\u5e38\u5728search_indexes.py\u4e2d\u3002\u5c3d\u7ba1\u8fd9\u4e0d\u662f\u5fc5\u987b\u7684\u3002\u8fd9\u4f7f\u5f97Haystack\u80fd\u81ea\u52a8\u7684\u68c0\u6d4b\u5230\u5b83\u3002NoteIndex\u5e94\u8be5\u770b\u8d77\u6765\u50cf\uff1a<\/p>\n<\/blockquote>\n
import datetime\nfrom haystack import indexes\nfrom myapp.models import Note\n\nclass NoteIndex(indexes.SearchIndex, indexes.Indexable):\n   text = indexes.CharField(document=True, use_template=True)\n   author = indexes.CharField(model_attr='user')\n   pub_date = indexes.DateTimeField(model_attr='pub_date')\n\n   def get_model(self):\n       return Note\n\n   def index_queryset(self, using=None):\n       """Used when the entire index for model is updated."""\n       return self.get_model().objects.filter(pub_date__lte=datetime.datetime.now())<\/code><\/pre>\n
\n
\u6bcf\u4e2aSerachIndex\u9700\u8981\u6709\u4e00\u4e2a\uff08\u4ec5\u6709\u4e00\u4e2a\uff09\u4e00\u4e2a\u5b57\u6bb5document=True.\u8fd9\u4e2a\u6307\u793a\u7740Haystack\u548c\u641c\u7d22\u5f15\u64ce\u628a\u90a3\u4e2a\u5b57\u6bb5\u4f5c\u4e3a\u4e3b\u8981\u7684\u68c0\u7d22\u3002<\/p>\n
\u5f53\u4f60\u9009\u62e9document=True\u5b57\u6bb5\u65f6\uff0c\u5b83\u5e94\u8be5\u5728\u4f60\u7684SearchIndex\u7c7b\u91cc\u9762\u59cb\u7ec8\u5982\u4e00\uff0c\u4ee5\u907f\u514d\u540e\u7aef\u7684\u6df7\u6dc6\u3002\u4e00\u4e2a\u4fbf\u6377\u7684\u547d\u540d\u662ftext\u3002<\/p>\n
\u5728\u6240\u6709\u7684\u6837\u4f8b\u4e2d\u8fd9\u4e2atext\u5b57\u6bb5\u540d\u5e76\u6ca1\u6709\u4ec0\u4e48\u7279\u6b8a\u3002\u5b83\u4e5f\u53ef\u4ee5\u662f\u5176\u4ed6\u4efb\u4f55\u547d\u540d\uff0c\u4f60\u53ef\u4ee5\u53eb\u5b83pink_polka_dot\u4e5f\u662f\u6ca1\u6709\u5173\u7cfb\u7684\u3002\u53ea\u662f\u7b80\u5355\u4fbf\u5229\u7684\u4ea4\u505atext\u3002<\/p>\n
\u53e6\u5916\uff0c\u6211\u4eec\u5728text\u5b57\u6bb5\u4e0a\u63d0\u4f9b\u4e86use_template=True\u3002\u8fd9\u5141\u8bb8\u6211\u4eec\u4f7f\u7528\u4e00\u4e2a\u6570\u636e\u6a21\u677f\uff08\u800c\u4e0d\u662f\u5bb9\u6613\u51fa\u9519\u7684\u7ea7\u8054\uff09\u6765\u6784\u5efa\u6587\u6863\u641c\u7d22\u5f15\u64ce\u7d22\u5f15\u3002\u4f60\u5e94\u8be5\u5728\u6a21\u677f\u76ee\u5f55\u4e0b\u5efa\u7acb\u65b0\u7684\u6a21\u677fsearch\/indexes\/myapp\/note_text.txt\uff0c\u5e76\u5c06\u4e0b\u9762\u5185\u5bb9\u653e\u5728\u91cc\u9762\u3002<\/p>\n<\/blockquote>\n
{{ object.title }}\n{{ object.user.get_full_name }}\n{{ object.body }}<\/code><\/pre>\n
\n
\u6b64\u5916\uff0c\u6211\u4eec\u589e\u52a0\u4e86\u5176\u4ed6\u5b57\u6bb5\uff08author\u548cpub_date\uff09\u3002\u5f53\u6211\u4eec\u63d0\u4f9b\u989d\u5916\u7684\u8fc7\u6ee4\u9009\u9879\u7684\u65f6\u5019\u8fd9\u662f\u5f88\u6709\u7528\u7684\u3002\u6765\u81f3Haystack\u7684\u591a\u4e2aSearchField\u7c7b\u80fd\u5904\u7406\u5927\u591a\u6570\u7684\u6570\u636e\u3002<\/p>\n
\u4e00\u4e2a\u5e38\u89c1\u7684\u4e3b\u9898\u662f\u5141\u8bb8\u7ba1\u7406\u5458\u7528\u6237\u5728\u672a\u6765\u6dfb\u52a0\u5185\u5bb9\uff0c\u800c\u4e0d\u9a6c\u4e0a\u5728\u7f51\u7ad9\u5c55\u793a\uff0c\u76f4\u5230\u672a\u6765\u67d0\u4e2a\u65f6\u95f4\u70b9\u3002\u6211\u4eec\u7279\u522b\u81ea\u5b9a\u4e49\u4e86index_queryset\u65b9\u6cd5\u6765\u9632\u6b62\u672a\u6765\u7684\u8fd9\u4e9b\u9879\u6dfb\u52a0\u5230\u7d22\u5f15\u3002<\/p>\n<\/blockquote>\n
\u56db\u3001\u89c6\u56fe<\/h2>\n
<\/p>
<\/div>
\u67e5\u770b\u66f4\u591a<\/h2>
\u8054\u7cfb\u7ba1\u7406\u5458\u5fae\u4fe1tutu19192010\uff0c\u6ce8\u518c\u8d26\u53f7<\/p>\n<\/div>
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Register<\/a><\/div>
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<\/div>","protected":false},"excerpt":{"rendered":"
HayStack \u4e00\u3001\u4ec0\u4e48\u662fHaystack\uff1f Haystack\u662fdjango\u7684\u5f00\u6e90\u5168\u6587\u641c\u7d22\u6846\u67b6(\u5168\u6587\u68c0\u7d22\u4e0d\u540c […]<\/p>\n","protected":false},"author":3,"featured_media":6784,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[3,405],"tags":[],"_links":{"self":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/6131"}],"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=6131"}],"version-history":[{"count":0,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/6131\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/media\/6784"}],"wp:attachment":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6131"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6131"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6131"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}