干草堆多字段搜索 [英] haystack multiple field search

问题描述

您好，我将干草堆和woosh用作搜索引擎：

Hi i m using haystack with a woosh as search engine:

我的模型如下所示

class Person(models.Model):
    personid = models.IntegerField(primary_key = True, db_column = 'PID')  
    firstname = models.CharField(max_length = 50, db_column = 'FIRSTNAME')  
    lastname = models.CharField(max_length = 50, db_column = 'LASTNAME') 
    class Meta:
        db_table = '"TEST"."PERSON"'
        managed = False


class TDoc(models.Model):
    tdocid = models.IntegerField(primary_key = True, db_column = 'TDOCID')  
    person = models.ForeignKey(Person, db_column = 'PID')
    content = models.TextField(db_column = 'CONTENT', blank = True) 
    filepath = models.TextField(db_column = 'FILEPATH', blank = True) 
    class Meta:
        db_table = '"TEST"."TDOC"'
        managed = False

search_index.py如下：

The search_index.py is as follows:

class TDocIndex(SearchIndex):

    content = CharField(model_attr = 'content', document = True)
    filepaht = CharField(model_attr = 'filepath')
    person = CharField(model_attr = 'person')

    def get_queryset(self):
        return TDoc.objects.all()

    def prepare_person(self, obj):
        # Store a list of id's for filtering
        return obj.person.lastname

site.register(TDoc, TDocIndex)

我的问题是我想进行多次归档搜索，例如

My problem is i would like to do multiple filed searches like

content：xxx AND person：SMITH

content:xxx AND person:SMITH

在干草堆上一次搜索所有这些对象我无法进行特定领域的搜索。
我怀疑索引已损坏，但：

On haystack it search all of them at once i can't do specific field search. I suspected that my index is corrupt but:

ix = open_dir("/testindex")

searcher = ix.searcher()

mparser = MultifieldParser(["content", "filepath", "person"], schema = ix.schema)
myquery = mparser.parse(content:xxx AND person:SMITH')
results = searcher.search(myquery)
for result in results:
    print result

，但是它可以正常工作并返回正确的值。
我使用标准的干草堆SearchView，search.html来自教程

but it works and return's the correct value. I m using the standard haystack SearchView,search.html from the tutorial

(r'^search/', include('haystack.urls')),

推荐答案

在您的索引应该使用 document = True 定义一个字段，这是干草堆将在其中搜索的文档。按照约定，该字段被命名为 text 。如果打算对它们的值进行过滤或排序，则可以添加其他字段。

In your index you should define one field with document=True, which is the document haystack will search on. By convention this field is named text. You add extra fields if you plan to do filtering or ordering on their values.

执行搜索时考虑多个字段的方法是定义文档作为模板，然后在文档字段中设置 use_template 。您的索引如下所示：

The way to take several fields in account when you perform a search, is to define the document as a template, and set use_template on your document field. Your Index would look like:

class TDocIndex(SearchIndex):

    text = CharField(document=True, use_template=True)

    #if you plan to filter by person
    personid = IntegerField(model_attr='person__id') 

site.register(TDoc, TDocIndex)

您将拥有一个search / indexes / tdoc_text.txt模板，例如：

And you'd have a search/indexes/tdoc_text.txt template like:

{{ object.content }}
{{ object.filepath }}
{{ object.person.lastname }}

请参见这个答案。

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