Example:
{
"_id": "851504284360",
"createUserId": "User73E68059D1A44EF3BBF88650EA3B83B0",
"userIds": [],
"userList": [
{
"_id": "User73E68059D1A44EF3BBF88650EA3B83B0",
"phone": "kodD9QDWdTCl0KTTXjIRHw==",
"token": "343cdbc09545e7e9812fea4998a83dd8"
}
]
}
I'm trying to delete an array of document in mongoDb ,but can't succeed in it. I've tried with update.pull("userIds",value) succeed ,but the userList I've tried like :
update.pull("userList",new String[]{value}) ,
update.pull("userList",new ArrayList().add(Object)),
update.pull("userList",new Object(key,value))//etc ...
but can't succeed.
How can I remove userList this document in spring mongodb ? I was use mongoTemplate.
To remove userList use $unset operator which deletes a particular field.
In Mongo you would do something like this:
db.collection.update(
{ "_id": "851504284360" },
{ "$unset": { "userList": "" } }
)
In mongoTemplate, you could do something like:
WriteResult wr = mongoTemplate.updateMulti(
new Query(where("_id").is("851504284360")),
new Update().unset("userList"),
Entity.class
);
Related
I have set up a GraphQL-mongoose-express-apollo combo as per this guide.
When I run a query to get multiple results, is there a way to reduce the resulting array before I actually get to processing the response from the query.
Query:
query GetSomeUsers {
userMany (limit: 3){
_id
}
}
Actual output:
{
"data": {
"userMany": [
{
"_id": "5e950543cb48dbaafc60722d"
},
{
"_id": "5e950543cb48dbaafc60722e"
},
{
"_id": "5e950547cb48dbaafc60722f"
}
]
}
}
Desired output:
{
"data": {
"userMany": [
"5e950543cb48dbaafc60722d",
"5e950543cb48dbaafc60722e",
"5e950547cb48dbaafc60722f"
]
}
}
So far I have only found something that seems to be relevant in an article on GraphQL Leveler, but I don't see how it would work with graphql-compose-mongoose, as the GraphQL schema is automatically generated and there does not seem to be any place in the code to put in that LevelerObjectType in place of a GraphQLObjectType.
I am looking for any examples that implement the parent-child relationship using the python interface.
I can define a mapping such as
es.indices.create(
index= "docpage",
body= {
"mappings": {
"properties": {
"my_join_field": {
"type": "join",
"relations": {
"my_document": "my_page"
}
}
}
}
}
)
I am then indexing a document using
res = es.index(index="docpage",doc_type="_doc",id = 1, body=jsonDict) ,
where jsonDict is a dict structure of document's text,
jsonDict['my_join_field']= 'my_document', and other relevant info.
Reference example.
I tried adding pageDict where the page is a string containing text on a page in a document, and
pageDict['content']=page
pageDict['my_join_field']={}
pageDict['my_join_field']['parent']="1"
pageDict['my_join_field']['name']="page"
res = es.index(index="docpage",doc_type="_doc",body=pageDict)
but I get a parser error:
RequestError(400, 'mapper_parsing_exception', 'failed to parse')
Any ideas?
This worked for me :
res=es.index(index="docpage",doc_type="_doc",body={"content":page,
"my-join-field":{
"name": "my_page",
"parent": "1"}
})
The initial syntax can work if the parent is also repeated in the "routing" key of the main query body:
res = es.index(index="docpage",doc_type="_doc",body=pageDict, routing=1)
Below is a portion of my code, that I've taken from here. I had to make few changes to make work with the new v6.X of Elasticsearch.
It runs without any errors and creates new documents BUT with empty field values. If I take the same JSON payload and PUT in Elasticsearch using Postman, the document gets indexed fine, with all fields populated. Please let me know if I am using the right Elasticsearch API methods, and using them right.
string strJsonMessage = #"
{
message : {
content: 'Test Message Content'
}
}";
ConnectionSettings connectionSettings = new ConnectionSettings(new Uri("xxx")).BasicAuthentication("xx", "xx");
ElasticClient client = new ElasticClient(connectionSettings);
JObject msg = JObject.Parse(strJsonMessage);
var result = await client.LowLevel.IndexAsync<BytesResponse>("events-2018.03.27", "event", PostData.Serializable(msg));
if (result.Success)
{
log.Info("Data successfully sent.");
log.Verbose(result.Body);
}
else
{
log.Error("Failed to send data.");
}
****OUTPUT TRACE:****
2018-03-27T18:37:18.961 [Info] Data successfully sent.
2018-03-27T18:37:18.961 [Verbose] {"_index":"events-2018.03.27","_type":"event","_id":"u9HPaGIBBm3ZG7GB5jM_","_version":1,"result":"created","_shards":{"total":2,"successful":1,"failed":0},"_seq_no":29,"_primary_term":1}
Querying elasticsearch for this document by its ID gives me this:
{
"_index": "events-2018.03.27",
"_type": "event",
"_id": "u9HPaGIBBm3ZG7GB5jM_",
"_version": 1,
"found": true,
"_source": {
"message": {
"content": []
}
}
}
In case someone comes across the same issue, I got the solution here.
I have collection in following format.
{
id:____,
name:"Carlos",
city:"Mumbai"
},
{
id:____,
name:"Pravin",
city:"Mumbai"
},
{
id:_____,
name:"Gaurav",
city:"Ahmedabad"
}
I want whole document distinct by city. I tried the db.collection.distinct("city"). But it returns only distinct cities.
Current Output:
["Mumbai","Ahmedabad"]
Expected Output:
{
id:____,
name:"Carlos",
city:"Mumbai"
},
{
id:_____,
name:"Gaurav",
city:"Ahmedabad"
}
Above you can see there is only one record of "Mumbai". I need this kind of output.
Anyone know how we can get whole document with distinct in spring-mongodb?
You could try running an aggregation pipeline operation where you can include the the other fields inside the $group pipeline stage using the $first operator. Two examples that show this approach follow:
Mongo Shell:
pipeline = [
{
"$group": {
"_id": "$city",
"id": { "$first": "$_id" },
"name": { "$first": "$name" }
}
}
]
db.collection.aggregate(pipeline);
Spring Data MongoDB:
import static org.springframework.data.mongodb.core.aggregation.Aggregation.*;
MongoTemplate mongoTemplate = repository.getMongoTemplate();
Aggregation agg = newAggregation(
group("city")
.first("_id").as("id")
.first("name").as("name")
);
AggregationResults<OutputType> result = mongoTemplate.aggregate(agg,
"collection", OutputType.class);
List<OutputType> mappedResult = result.getMappedResults();
I am developing a web app using Codeigniter and MongoDB.
In the database I got a document that look like this:
{
"_id": {
"$id": "4f609932615a935c18r000000"
},
"basic": {
"name": "The project"
},
"members": [
{
"user_name": "john",
"role": "user",
"created_at": {
"sec": 1331730738,
"usec": 810000
}
},
{
"user_name": "markus",
"role": "user",
"created_at": {
"sec": 1331730738,
"usec": 810000
}
}
]
}
I need to search this document using both user_name and role. Right now when I am using the below code I get both. I only want to get array items matching both user_name and role.
$where = array (
'_id' => new MongoId ($account_id),
'members.user_id' => new MongoId ($user_id),
'members.role' => $role
);
$this -> cimongo -> where ($where) -> count_all_results ('accounts');
This is an old question, but as of MongoDB 2.2 or so you can use the $ positional operator in a projection so that only the matched array element is included in the result.
So you can do something like this:
$this->cimongo->where($where)->select(array('members.$'))->get('accounts');
This is a repeat of this question:
Get particular element from mongoDB array
Also you might want to use $elemMatch
http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-ValueinanArray
Here is the rub -- you aren't going to be able to get the array items that match because mongo is going to return the entire document if those elements match. You will have to parse out the code client side. Mongo doesn't have a way to answer, "return only the array that matches."