Question

我在mongo下的数据库中有3个集合：显示 - 场地 - 下拉列表

节目映射如下

public class CodesArrayAdapter extends ArrayAdapter implements Filterable{

    List<String> allCodes;
    List<String> originalCodes;
    StringFilter filter;

    public CodesArrayAdapter(Context context, int resource, List<String> keys) {
        super(context, resource, keys);
        allCodes=keys;
        originalCodes=keys;
    }

    public int getCount() {
        return allCodes.size();
    }

    public Object getItem(int position) {
        return allCodes.get(position);
    }

    public long getItemId(int position) {
        return position;
    }

    private class StringFilter extends Filter {
        @Override
        protected FilterResults performFiltering(CharSequence constraint) {

            String filterString = constraint.toString().toLowerCase();
            FilterResults results = new FilterResults();
            final List<String> list = originalCodes;

            int count = list.size();
            final ArrayList<String> nlist = new ArrayList<String>(count);
            String filterableString ;

            for (int i = 0; i < count; i++) {
                filterableString = list.get(i);
                if (filterableString.toLowerCase().contains(filterString)) {
                    nlist.add(filterableString);
                }
            }

            results.values = nlist;
            results.count = nlist.size();
            return results;
        }

        @SuppressWarnings("unchecked")
        @Override
        protected void publishResults(CharSequence constraint, FilterResults results) {
            allCodes = (ArrayList<String>) results.values;
            notifyDataSetChanged();
        }

    }


    @Override
    public Filter getFilter()
    {
        return new StringFilter();
    }
}

像这样的场地

"show": {
    "properties" : {
        "description": {
              "type": "string"
        },
        "image": {
              "type": "string"
         },
        "site": {
              "type": "string"
         },
        "title" : {
                "type" : "multi_field",
                "fields" : {
                    "title" : {"type" : "string", "index" : "analyzed"},
                    "raw_title" : {"type" : "string", "index" : "not_analyzed", "store": "no"}
                }
            }
    }
}

我在mongo中使用此模型进行下拉：

"venues": {
        "properties" : {
           "name" : {
                    "type" : "multi_field",
                    "fields" : {
                        "name" : {"type" : "string", "index" : "analyzed"},
                        "raw_name" : {"type" : "string", "index" : "not_analyzed", "store": "no"}
                    }
                },
            "city" : {
                    "type" : "multi_field",
                    "fields" : {
                        "city" : {"type" : "string", "index" : "analyzed"},
                        "raw_city" : {"type" : "string", "index" : "not_analyzed", "store": "no"}
                    }
                },
            "region" : {
                    "type" : "multi_field",
                    "fields" : {
                        "region" : {"type" : "string", "index" : "analyzed"},
                        "raw_region" : {"type" : "string", "index" : "not_analyzed", "store": "no"}
                    }
                },
                "state" : {
                    "type": "boolean"
                }
        }
    }

我将带有父/子模式的下拉列表映射到我的索引中，但是我无法理解是否可以使用ObjectId，因为我尝试过这种映射：

{
  created: {
    type: Date,
    default: Date.now
  },
  analytics: {
    type: String,
    default: '',
    trim: true
  },
  state: {
    type: Boolean,
    default: false,
    index: true
  },
  show: {
      type: Schema.ObjectId,
      ref: 'Show'
  },
  venues:[{
    venue:{
      type: Schema.ObjectId,
      ref: 'Venue',
      index: true
    },
    site: {
      type: String,
      trim: true,
      index: true
    }
  }]
}

但我收到了这个错误：

MapperParsingException [没有为属性[show]]指定类型

无论如何都要正确设置我的索引？

Answer 1

问题是您未正确指定_parent。您必须在properties字段中设置它，而不是在它旁边。请参阅documentation及其中的示例：

PUT /company
{
  "mappings": {
    "branch": {},
    "employee": {
      "_parent": {
        "type": "branch" 
      }
    }
  }
}

所以遵循这个逻辑，我已经采用了你的映射，简化了一点并使其工作：

PUT /test
{
  "mappings": {
    "show": {
      "properties": {
        "description": {
          "type": "string"
        },
        "image": {
          "type": "string"
        },
        "site": {
          "type": "string"
        },
        "title": {
          "type": "multi_field",
          "fields": {
            "title": {
              "type": "string",
              "index": "analyzed"
            },
            "raw_title": {
              "type": "string",
              "index": "not_analyzed",
              "store": "no"
            }
          }
        }
      }
    },
    "venues": {
      "properties": {
        "name": {
          "type": "multi_field",
          "fields": {
            "name": {
              "type": "string",
              "index": "analyzed"
            },
            "raw_name": {
              "type": "string",
              "index": "not_analyzed",
              "store": "no"
            }
          }
        },
        "city": {
          "type": "multi_field",
          "fields": {
            "city": {
              "type": "string",
              "index": "analyzed"
            },
            "raw_city": {
              "type": "string",
              "index": "not_analyzed",
              "store": "no"
            }
          }
        },
        "region": {
          "type": "multi_field",
          "fields": {
            "region": {
              "type": "string",
              "index": "analyzed"
            },
            "raw_region": {
              "type": "string",
              "index": "not_analyzed",
              "store": "no"
            }
          }
        },
        "state": {
          "type": "boolean"
        }
      }
    },
    "dropdown": {
      "_parent": {
        "type": "show"
      },
      "properties": {
        "state": {
          "type": "boolean"
        },
        "analytics": {
          "type": "string"
        },
        "venues": {
          "type": "object",
          "_parent": {
            "type": "venues"
          },
          "site": {
            "type": "string"
          }
        }
      }
    }
  }
}

我自己在Elasticsearch 1.7.1上尝试了这个，它运行良好。

但是，我不确定您是否可以像在场地中那样在嵌套文档中声明_parent关系。我的映射查询没有抛出错误并接受它。然而，看看它是如何在头部插件中解析的 - _parent被消除了，只剩下object部分，如截图所示：

如果我尝试在不指定类型的情况下对其进行索引 - 则抛出此错误：

＆＃34; MapperParsingException [mapping [dropdown]];嵌套： MapperParsingException [没有为property [venues]指定类型];

使用_id mongo river elasticsearch映射父/子

1 个答案: