I am trying to create an Elasticsearch MLT query using NEST's object initializer syntax. However, the final query when serialized, is ONLY missing the MLT part of it. Every other query is present though.
When inspecting the query object, the MLT is present. It's just not getting serialized.
I wonder what I may be doing wrong.
I also noticed that when I add Fields it works. But I don't believe fields is a mandatory property here that when it is not set, then the MLT query is ignored.
The MLT query is initialized like this;
new MoreLikeThisQuery
{
Like = new[]
{
new Like(new MLTDocProvider
{
Id = parameters.Id
}),
}
}
MLTDocProvider implements the ILikeDocument interface.
I expect the serialized query to contain the MLT part, but it is the only part that is missing.
This looks like a bug in the conditionless behaviour of more like this query in NEST; I've opened an issue to address. In the meantime, you can get the desired behaviour by marking the MoreLikeThisQuery as verbatim, which will override NEST's conditionless behaviour
var client = new ElasticClient();
var parameters = new
{
Id = 1
};
var searchRequest = new SearchRequest<Document>
{
Query = new MoreLikeThisQuery
{
Like = new[]
{
new Like(new MLTDocProvider
{
Id = parameters.Id
}),
},
IsVerbatim = true
}
};
var searchResponse = client.Search<Document>(searchRequest);
which serializes as
{
"query": {
"more_like_this": {
"like": [
{
"_id": 1
}
]
}
}
}
Related
I got this type of query
query {
searchRandom (param : MyObjectClass){
city
}
}
How may I set param with the type of MyObjectClass and pass it in the query? To be able to test here?
Use the following query.
query getData($param: MyObjectClass){
searchRandom(param: $param)
city
}
And then go to query variables tab in Graphiql and pass the variable data like this. You have not mention the data types included in MyObjectClass. So use this as an example:
{
"param": {"country": "England", "population": "High" }
}
Then the data should be returned as expected.
--- Additionally ---
If you are running the server, make sure you have set the followings.
You need to create a input object in the GraphQL schema.
input MyObjectClass {
country: String
population: String
}
Then in the resolver you have to pass the object as the argument. (Assuming you are using JavaScript)
const resolvers = {
Query: {
searchRandom: (parent, { param }) => {
var query_data = param
...//your code
return city_name;
},
},
I am not sure whether this addresses your question or not. I hope this answer helps though.
I've got a very simple Nuxt app with Strapi GraphQL backend that I'm trying to use and learn more about GraphQL in the process.
One of my last features is to implement a search feature where a user enters a search query, and Strapi/GraphQL performs that search based on attributes such as image name and tag names that are associated with that image. I've been reading the Strapi documentation and there's a segment about performing a search.
So in my schema.graphql, I've added this line:
type Query {
...other generated queries
searchImages(searchQuery: String): [Image
}
Then in the /api/image/config/schema.graphql.js file, I've added this:
module.exports = {
query: `
searchImages(searchQuery: String): [Image]
`,
resolver: {
Query: {
searchImages: {
resolverOf: 'Image.find',
async resolver(_, { searchQuery }) {
if (searchQuery) {
const params = {
name_contains: searchQuery,
// tags_contains: searchQuery,
// location_contains: searchQuery,
}
const searchResults = await strapi.services.image.search(params);
console.log('searchResults: ', searchResults);
return searchResults;
}
}
}
},
},
};
At this point I'm just trying to return results in the GraphQL playground, however when I run something simple in the Playground like:
query($searchQuery: String!) {
searchImages(searchQuery:$searchQuery) {
id
name
}
}
I get the error: "TypeError: Cannot read property 'split' of undefined".
Any ideas what might be going on here?
UPDATE:
For now, I'm using deep filtering instead of the search like so:
query($searchQuery: String) {
images(
where: {
tags: { title_contains: $searchQuery }
name_contains: $searchQuery
}
) {
id
name
slug
src {
url
formats
}
}
}
This is not ideal because it's not an OR/WHERE operator, meaning it's not searching by tag title or image name. It seems to only hit the first where. Ideally I would like to use Strapi's search service.
I actually ran into this problem not to recently and took a different solution.
the where condition can be combined with using either _and or _or. as seen below.
_or
articles(where: {
_or: [
{ content_contains: $dataContains },
{ description_contains: $dataContains }
]})
_and
(where: {
_and: [
{slug_contains: $categoriesContains}
]})
Additionally, these operators can be combined given that where in this instance is an object.
For your solution I would presume you want an or condition in your where filter predicate like below
images(where: {
_or: [
{ title_contains: $searchQuery },
{ name_contains: $searchQuery }
]})
Lastly, you can perform a query that filters by a predicate by creating an event schema and adding the #search directive as seen here
I am using NEST (.NET 4.8) to import my data, and I have a problem getting the mapping to work in NEST 7.0.0-alpha1.
I have the following class structure:
class LinkActor
{
public Actor Actor { get; set; }
}
abstract class Actor
{
public string Description { get; set; }
}
class Person : Actor
{
public string Name { get; set; }
}
I connect to Elasticsearch this way:
var connectionSettings = new ConnectionSettings(new Uri(connection));
connectionSettings.DefaultIndex(indexName);
var client = new ElasticClient(connectionSettings);
The actual data looks like this:
var personActor = new Person
{
Description = "Description",
Name = "Name"
};
var linkActor = new LinkActor
{
Actor = personActor
};
And the data is indexed like this:
result = client.IndexDocument(linkActor);
Using NEST 6.6 I am getting the following data in Elasticsearch 6.5.2:
"actor": {
"name": "Name",
"description": "Description"
}
However when using NEST 7.0.0-alpha1 I get the following data in Elasticsearch 7.0.0:
"actor": {
"description": "Description"
}
So the data from the concrete class is missing. I am obviously missing / not understanding some new mapping feature, but my attempts with AutoMap has failed:
client.Map<(attempt with each of the above classes)>(m => m.AutoMap());
Is is still possible to map the data from the concrete class in NEST 7.0.0-alpha1?
I found a workaround using the NEST.JsonNetSerializer (remember to install this), which allows me to pass a JObject directly:
Connect to Elasticsearch using a pool so you can add the JsonNetSerializer.Default:
var pool = new SingleNodeConnectionPool(new Uri(connection));
var connectionSettings = new ConnectionSettings(pool, JsonNetSerializer.Default);
connectionSettings.DefaultIndex(indexName);
var client = new ElasticClient(connectionSettings);
Convert the linkActor object from above to a JObject (JsonSerializerSettings omitted for clarity, add them to get CamelCasing):
var linkActorSerialized = JsonConvert.SerializeObject(linkActor);
var linkActorJObject = JObject.Parse(linkActorSerialized);
result = client.IndexDocument(linkActorJObject);
This gives the desired result:
"actor": {
"name": "Name",
"description": "Description"
}
It is a workaround, hopefully someone will be able to explain the mapping in the question.
In my project I'm using SpringBoot 1.3.2 and org.springframework.data.mongodb.core.query.*
I'm trying to update element in array, in my main object i have array looking like this:
"sections" : [
{
"sectionId" : "56cc3c908f5e6c56e677bd2e",
"name" : "Wellcome"
},
{
"sectionId" : "56cc3cd28f5e6c56e677bd2f",
"name" : "Hello my friends"
}
]
Using Spring I want to update name of record with sectionId 56cc3c908f5e6c56e677bd2e
I was trying to to this like that but it didn't work
Query query = Query.query(Criteria
.where("sections")
.elemMatch(
Criteria.where("sectionId").is(editedSection.getId())
)
);
Update update = new Update().set("sections", new BasicDBObject("sectionId", "56cc3c908f5e6c56e677bd2e").append("name","Hi there"));
mongoTemplate.updateMulti(query, update, Offer.class);
It create something like:
"sections" : {
"sectionId" : "56cc3c908f5e6c56e677bd2e",
"name" : "Hi there"
}
But this above is object { } I want an array [ ], and I don't want it remove other elements.
Can any body help me how to update name of record with sectionId 56cc3c908f5e6c56e677bd2e using Spring
You essentially want to replicate this mongo shell update operation:
db.collection.update(
{ "sections.sectionId": "56cc3c908f5e6c56e677bd2e" },
{
"$set": { "sections.$.name": "Hi there" }
},
{ "multi": true }
)
The equivalent Spring Data MongoDB code follows:
import static org.springframework.data.mongodb.core.query.Criteria.where;
import static org.springframework.data.mongodb.core.query.Query;
import static org.springframework.data.mongodb.core.query.Update;
...
WriteResult wr = mongoTemplate.updateMulti(
new Query(where("sections.sectionId").is("56cc3c908f5e6c56e677bd2e")),
new Update().set("sections.$.name", "Hi there"),
Collection.class
);
Can use BulkOperations approach to update list or array of document objects
BulkOperations bulkOps = mongoTemplate.bulkOps(BulkMode.UNORDERED, Person.class);
for(Person person : personList) {
Query query = new Query().addCriteria(new Criteria("id").is(person.getId()));
Update update = new Update().set("address", person.setAddress("new Address"));
bulkOps.updateOne(query, update);
}
BulkWriteResult results = bulkOps.execute();
Thats my solution for this problem:
public Mono<ProjectChild> UpdateCritTemplChild(
String id, String idch, String ownername) {
Query query = new Query();
query.addCriteria(Criteria.where("_id")
.is(id)); // find the parent
query.addCriteria(Criteria.where("tasks._id")
.is(idch)); // find the child which will be changed
Update update = new Update();
update.set("tasks.$.ownername", ownername); // change the field inside the child that must be updated
return template
// findAndModify:
// Find/modify/get the "new object" from a single operation.
.findAndModify(
query, update,
new FindAndModifyOptions().returnNew(true), ProjectChild.class
)
;
}
upon building my Elasticsearch query using Nest, i want to be able to see the JSON version of what's being sent to Elasticsearch. is this possible? some sort of deserializer i suppose.
here's the info for my follow up question:
{
"_infer": {
"defaultIndex": "myindex"
},
"acknowledged": false,
"isValid": false,
"connectionStatus": {
"success": false,
"requestMethod": "POST",
"requestUrl": "http://localhost:9200/myindex",
"settings": {},
"request": "{
  "settings": {
    "index": {
      "analysis": {
        "analyzer": {
          "fullTermCaseInsensitive": {
            "tokenizer": "keyword",
            "filter": [
              "standard",
              "lowercase"
            ],
            "type": "custom"
          },
          "fullTerm": {
            "tokenizer": "keyword",
            "filter": [
              "standard"
            ],
            "type": "custom"
          },
          "caseInsensitive": {
            "tokenizer": "lowercase",
            "filter": [
              "standard"
            ],
            "type": "custom"
          }
        }
      }
    }
  },
  "mappings": {
    "searchdata": {
      "properties": {
        "upc": {
          "type": "string"
        },
        "productid": {
          "type": "string"
        },
        "title": {
          "type": "string"
        },
        "store": {
          "type": "string"
        },
        "mediaformat": {
          "type": "multi_field",
          "fields": {
            "mediaformat": {
              "type": "string",
              "analyzer": "fullTermCaseInsensitive"
            },
            "raw": {
              "type": "string",
              "index": "not_analyzed"
            }
          }
        },
        "label": {
          "type": "string"
        },
        "vendor": {
          "type": "string"
        },
        "availabledate": {
          "type": "date"
        },
        "releasedate": {
          "type": "date"
        },
        "lastreturndate": {
          "type": "date"
        },
        "nonreturnable": {
          "type": "string"
        },
        "mpaa": {
          "type": "string"
        },
        "esrb": {
          "type": "multi_field",
          "fields": {
            "esrb": {
              "type": "string",
              "analyzer": "fullTermCaseInsensitive"
            },
            "raw": {
              "type": "string",
              "index": "not_analyzed"
            }
          }
        },
        "csnrflag": {
          "type": "string"
        },
        "cover": {
          "type": "string"
        },
        "size": {
          "type": "string"
        },
        "color": {
          "type": "string"
        },
        "style": {
          "type": "string"
        },
        "qoh": {
          "type": "integer"
        },
        "adult": {
          "type": "integer"
        },
        "salesrank": {
          "type": "integer"
        },
        "listprice": {
          "type": "double"
        },
        "sellingprice": {
          "type": "double"
        },
        "costprice": {
          "type": "double"
        },
        "specialorder": {
          "type": "string"
        },
        "flags": {
          "type": "string"
        },
        "salescategory": {
          "type": "string"
        },
        "artists": {
          "type": "object",
          "properties": {
            "name": {
              "type": "string",
              "analyzer": "fullTerm",
              "index": "not_analyzed"
            },
            "id": {
              "type": "string",
              "analyzer": "fullTerm",
              "index": "not_analyzed"
            }
          }
        },
        "directors": {
          "type": "object",
          "properties": {
            "name": {
              "type": "string",
              "analyzer": "fullTerm",
              "index": "not_analyzed"
            },
            "id": {
              "type": "string",
              "analyzer": "fullTerm",
              "index": "not_analyzed"
            }
          }
        },
        "starring": {
          "type": "object",
          "properties": {
            "name": {
              "type": "string",
              "analyzer": "fullTerm",
              "index": "not_analyzed"
            },
            "id": {
              "type": "string",
              "analyzer": "fullTerm",
              "index": "not_analyzed"
            }
          }
        },
        "credits": {
          "type": "object",
          "properties": {
            "name": {
              "type": "string",
              "analyzer": "fullTerm",
              "index": "not_analyzed"
            },
            "id": {
              "type": "string",
              "analyzer": "fullTerm",
              "index": "not_analyzed"
            }
          }
        },
        "additionaltitles": {
          "type": "string",
          "analyzer": "caseInsensitive"
        },
        "attributes": {
          "type": "string",
          "analyzer": "caseInsensitive"
        },
        "specialty": {
          "type": "multi_field",
          "fields": {
            "specialty": {
              "type": "string",
              "analyzer": "fullTermCaseInsensitive"
            },
            "raw": {
              "type": "string",
              "index": "not_analyzed"
            }
          }
        },
        "genres": {
          "type": "multi_field",
          "fields": {
            "genres": {
              "type": "string",
              "analyzer": "fullTermCaseInsensitive"
            },
            "raw": {
              "type": "string",
              "index": "not_analyzed"
            }
          }
        },
        "theme": {
          "type": "multi_field",
          "fields": {
            "theme": {
              "type": "string",
              "analyzer": "fullTermCaseInsensitive"
            },
            "raw": {
              "type": "string",
              "index": "not_analyzed"
            }
          }
        },
        "price": {
          "type": "multi_field",
          "fields": {
            "price": {
              "type": "string",
              "analyzer": "fullTermCaseInsensitive"
            },
            "raw": {
              "type": "string",
              "index": "not_analyzed"
            }
          }
        },
        "tracks": {
          "type": "string",
          "analyzer": "caseInsensitive"
        },
        "deleted": {
          "type": "string"
        },
        "updatedate": {
          "type": "date"
        },
        "processed": {
          "type": "string"
        },
        "decades": {
          "type": "multi_field",
          "fields": {
            "decades": {
              "type": "string",
              "analyzer": "fullTermCaseInsensitive"
            },
            "raw": {
              "type": "string",
              "index": "not_analyzed"
            }
          }
        },
        "period": {
          "type": "multi_field",
          "fields": {
            "period": {
              "type": "string",
              "analyzer": "fullTermCaseInsensitive"
            },
            "raw": {
              "type": "string",
              "index": "not_analyzed"
            }
          }
        },
        "platform": {
          "type": "multi_field",
          "fields": {
            "platform": {
              "type": "string",
              "analyzer": "fullTermCaseInsensitive"
            },
            "raw": {
              "type": "string",
              "index": "not_analyzed"
            }
          }
        }
      }
    }
  }
}",
"numberOfRetries": 0,
"httpStatusCode": 400,
"serializer": {},
"successOrKnownError": true
},
"infer": {
"defaultIndex": "myindex"
}
}
Yup. You can use the serializer that is exposed by ElasticClient like this:
var query = Nest.Query<SomeObject>...
var json = Client.Serializer.SerializeToString(query);
You can also use Newtonsoft directly, or any JSON library for that matter to serialize your query object. Using the serializer in ElasticClient though (which essentially wraps Newtonsoft), will give you the exact JSON that NEST will generate.
Checkout how the unit tests are done in NEST for more details, specifically this.
I used SearchDescriptor like this for a complex query:
SearchDescriptor<T> sd = new SearchDescriptor<T>()
.From(0).Size(100)
.Query(q => q
.Bool(t => t
.Must(u => u
.Bool(v => v
.Should(
...
)
)
)
)
);
And got the deserialized JSON like this:
{
"from": 0,
"size": 100,
"query": {
"bool": {
"must": [
{
"bool": {
"should": [
...
]
}
}
]
}
}
}
It was annoying, NEST library should have something that spits out the JSON from request. However this worked for me:
using (MemoryStream mStream = new MemoryStream()) {
client.Serializer.Serialize(sd, mStream);
Console.WriteLine(Encoding.ASCII.GetString(mStream.ToArray()));
}
NEST library version: 2.0.0.0.
Newer version may have an easier method to get this (Hopefully).
If the above answer doesn't work, or you want a simpler one, I posted another way here on what is probably a duplicate, (but differently worded) question:
https://stackoverflow.com/a/31247636/261405
Add this to your WebApiConfig.cs:
public static void Register(HttpConfiguration config)
{
...
// ignore circular reference globally
config.Formatters.JsonFormatter.SerializerSettings.ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore;
...
}
Then you should be able to do something like this:
// Return raw
var esObj = await _client.SearchAsync<object>(searchRequest);
// more specific deserialization using Newtonsoft.Json example
foreach (var hit in esObj.Hits)
{
var myObj = JsonConvert.DeserializeObject<MyObject>(hit.xxx);
...
}
For Nest 5.3.0 :
var memoryStream = new System.IO.MemoryStream();
client.Serializer.Serialize(query, memoryStream);
var jsonQuery = System.Text.Encoding.UTF8.GetString(memoryStream.ToArray());