Django 使用Djapian定义结合两个表的索引

我有以下餐厅和评论模式。我正在对餐馆模型的一些字段进行全文搜索，如RestaurantIndexer类中所示。如何进行包含注释的全文搜索（即搜索返回餐厅实例，查询包含在RestaurantIndex或注释实例的注释字段中定义的一个或一些字段中）

*********餐厅模式***************

class Restaurant(models.Model):

    name = models.CharField(max_length=100)
    country=models.ForeignKey(Country)
    city=models.ForeignKey(City)
    street=models.CharField(max_length=100)
    street_number=models.PositiveSmallIntegerField()
    postal_code=models.PositiveIntegerField(blank=True,null=True)
    category=models.ManyToManyField(Category, blank=True,ull=True)
    slug = models.SlugField(unique=True)

class Comment(models.Model):

    user = models.ForeignKey(User)
    restaurant = models.ForeignKey(Restaurant)
    submit_date = models.DateTimeField(blank = True, null = False)
    comment = models.TextField()

class RestaurantIndexer(Indexer):
    tags = [
        ('name','name'),
        ('city','city'),
        ('country','country'),
        ('category', 'category'),
        ('tag','tag')
    ]

#how can I add Comment.comment?

space.add_index(Restaurant, RestaurantIndexer, attach_as='indexer') 

*********注释模型***************

class Restaurant(models.Model):

    name = models.CharField(max_length=100)
    country=models.ForeignKey(Country)
    city=models.ForeignKey(City)
    street=models.CharField(max_length=100)
    street_number=models.PositiveSmallIntegerField()
    postal_code=models.PositiveIntegerField(blank=True,null=True)
    category=models.ManyToManyField(Category, blank=True,ull=True)
    slug = models.SlugField(unique=True)

class Comment(models.Model):

    user = models.ForeignKey(User)
    restaurant = models.ForeignKey(Restaurant)
    submit_date = models.DateTimeField(blank = True, null = False)
    comment = models.TextField()

class RestaurantIndexer(Indexer):
    tags = [
        ('name','name'),
        ('city','city'),
        ('country','country'),
        ('category', 'category'),
        ('tag','tag')
    ]

#how can I add Comment.comment?

space.add_index(Restaurant, RestaurantIndexer, attach_as='indexer') 

*********餐厅索引器***************

class Restaurant(models.Model):

    name = models.CharField(max_length=100)
    country=models.ForeignKey(Country)
    city=models.ForeignKey(City)
    street=models.CharField(max_length=100)
    street_number=models.PositiveSmallIntegerField()
    postal_code=models.PositiveIntegerField(blank=True,null=True)
    category=models.ManyToManyField(Category, blank=True,ull=True)
    slug = models.SlugField(unique=True)

class Comment(models.Model):

    user = models.ForeignKey(User)
    restaurant = models.ForeignKey(Restaurant)
    submit_date = models.DateTimeField(blank = True, null = False)
    comment = models.TextField()

class RestaurantIndexer(Indexer):
    tags = [
        ('name','name'),
        ('city','city'),
        ('country','country'),
        ('category', 'category'),
        ('tag','tag')
    ]

#how can I add Comment.comment?

space.add_index(Restaurant, RestaurantIndexer, attach_as='indexer') 

---

Djapian支持点表示法来解析索引器声明中标记的字段和路径部分。它还支持可调用项并使用它们的结果

但是，您不需要这些，因为您只需要获取餐厅的所有评论，您可以简单地执行以下操作：

class RestaurantIndexer(Indexer):
    tags = [
        ('name','name'),
        ('city','city'),
        ('country','country.name'),
        ('category', 'category'),
        ('tag','tag'),
        ('comments', 'all_comments_text'),
    ]

class Restaurant(models.Model):
    # ... fields

    @property # could also be a method, since callables work
    def all_comments_text(self):
        return " ".join(map(lambda x: x.comment, self.comment_set.all()))

---

请注意，这只是将所有相关注释对象上的所有注释字段用空格连接起来。不过，应该为索引做些什么。

你用什么做索引搜索？谢谢stefan，python再次为我节省了时间！