Is there a way to return all documents currently in an Index.
I'm struggling to find a method, I expected it to be straightforward but I cant find anything that does it.
Execute a query using Lucene.Net.Search.MatchAllDocsQuery as the query instead of building your own. It'll return hits for all (non-deleted) documents in your index.
Related
community!
I am in a weird situation. The direct equally check returns result, but when using $in I am not getting any records.
db.getCollection("voter").find({"id":{$in:["db1eefc5-09ad-4d4f-a31a-db63d8261913"]}})
db.voter.find({"id":{$in:["db1eefc5-09ad-4d4f-a31a-db63d8261913"]}})
Doesn't return anything.
db.voter.find({id: "db1eefc5-09ad-4d4f-a31a-db63d8261913"})
Returns the desired record.
Being more of a fullstack developer, I don't know what's happening in-depth, but I am sure that both things shall work ideally which is not the case here.
Extra info:
I have defined hashed unique indexes on id.
Thanks.
The problem is pretty simple:
On the first screen you're running your query against admin database
while second query gets executed against crmadmin db
I'm currently trying to use pymongo's find_one query. When I run the Mongo Shell and execute a findOne query, it get a document that is returned. However when I try using pymongo's find_one query, I always seem to get just the field names instead of an actual entry.
#app.route("/borough/manhattan/")
def manhattan():
restaurantmanhattan = restaurants.find_one({'borough':'Manhattan'})
json_restaurantmanhattan = []
for restaurant in restaurantmanhattan:
json_restaurantmanhattan.append(restaurant)
json_restaurantmanhattan = json.dumps(json_restaurantmanhattan)
return json_restaurantmanhattan
Once I navigate to http://0.0.0.0:5000/borough/manhattan/ I get the following:
["cuisine","borough","name","restaurant_id","grades","address","_id"]
I believe I should be seeing a document entry that meets the query that it has Manhattan listed in the borough.
I'm at a loss as to how I should be writing the query to return that.
Can anyone explain what I'm seeing?
There are many things wrong with your view.
First as you may already know, find_one return a single document as Python dictionary. So in your for loop, you iterating the dictionary keys.
You really do not need that for loop.
import json
#app.route("/borough/manhattan/")
def manhattan():
restaurant_manhattan = restaurants.find_one({'borough':'Manhattan'})
return json.dumps(restaurant_manhattan)
I am new to Mongo and can't seem to figure out the following after reading posts and the documentation. I am executing the following query:
db.collection.find({'name':'example name'})
Which returns 14 results. I can get the count of correctly by executing:
db.collection.find({'name':'example name'}).count()
However, I want to return the full documents and the count in a single query, similar to the way Elasticsearch does. Is there anyway to do this.
Additionally, is there any equivalence to Elasticsearch's Bool should query (http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/query-dsl-bool-query.html). Essentially I would want to rank the results, so that those with attribute 'onSale=True' are returned before 'onSale=False'.
I'm not sure about your second question, whether MongoDB provides some mechanism equivalent to Elasticsearch's Bool should query.
But for your 1st question, I think you can use Cursor.
var cursor = db.collection.find({'name':'example name'});
Once you've got the cursor, you can use it for getting the count in the following way:
cursor.count()
as well as for getting the documents wrapped in an array in the following way:
cursor.toArray()
For more info on cursor, please see the below mentioned link:
http://docs.mongodb.org/manual/tutorial/iterate-a-cursor/
I know it is probably a simple solution but for some reason I am having trouble calling it... I tried querying it then calling
user.connected_accounts.facebook but that does not work... I need to get hte number out.
Here is the code:
"connected_accounts":[{"facebook":"5555555"}],
Here is my mongoose schema:
connected_accounts: {type: Array}
For you question, I want to know you query clause, in mongodb console, it is different when you are using db.collection.find method and db.collection.findOne method, find method will return an collections, but findOne method will return one object(docment).
So if you are using find, you can get result like: results[0].connected_accounts[0].facebook , if you are using findOne, you can get result like: results.connected_accounts[0].facebook.
I had to just called connected_account[0].facebook to get the value.
I don't know if I am doing something wrong or it is a bug.
I have the following code:
Query criteria = new Query(Criteria.where("locationTime").gte(
"date-time"));
criteria.fields().exclude("friends");
NearQuery query = NearQuery.near(point).maxDistance(maxDistance)
.num(limit).query(criteria);
GeoResults<Profile> result = mongoTemplate
.geoNear(query, Profile.class);
I am executing the query and profiles near by retrieved correctly according to distance and the "locationTime" criteria but it seems to ignore the excluded field and retrieving the profiles with their friends.
When I use simple query the exclude/include fields works perfectly.
I looked every where and could not find any resemble use-case, please let me know if i am doing something wrong.
Thanks.
There's no way to limit the fields with a geoNear command, as far as I know.
I looked into calling executeCommand to try to work around the limitations of Spring Data, but it looks like they don't even have a way to do it from the raw command.