How can I get the total number of documents found using the Nest? - elasticsearch

I do the same request using the nest, and directly in ElastichSearch.
When I see direct request, how many documents match request.
"hits":
{
"total": 1640,
"max_score": 1,
"hits": [...]
}
My query:
var search = client.Search<RCompany>(s => s.Index("MyIndex")
.Query(qq => qq
.Filtered(m => m.Filter(f => f.Bool(b => b
.Must(
a => a.Term(z => z.Company.Code, param1),
a => a.Terms(z => z.Company.Id, param2),
a => a.Terms(z => z.Company.Field1.Id, param3)
)))
.Query(b => b.Bool(q => q.Should
(n => n.Match(a => a.OnField(d => d.Company.Field2).Query(param5).Operator(Operator.And)),
n => n.Match(a => a.OnField(d => d.Company.Field3).Query(param5).Operator(Operator.And)),
n => n.Match(a => a.OnField(d => d.Company.Field4).Query(param5).Operator(Operator.And)),
n => n.Match(a => a.OnField(d => d.Company.Field5).Query(param5).Operator(Operator.And))
)))))
.Size(10)
.SortDescending(n => n.DtCreate));
How can I find out how many documents suitable request using Nest?


There is a Total property on ISearchResponse which holds the total number of documents that matched the query. In your example, that would be search.Total.


The best way is to use the method Count as proposed by the official documentation
here the code
var result = client.Count<ElasticsearchProject>();

Related

How to sum array values and add total at the end in the same array

Good Afternoon,
Hello, i am new to coding and Laravel and working on home project as a self leaner. i stuck at array sum where i want to make the sum of values in array and add the same sum at the end of tjat array itself.
array:7 [▼
"2022-12-04" => array:9 [▼
"startdate" => "2022-12-04"
"Stotalbmilk" => "29.00"
"Stotala2milk" => "22.50"
"Stotaljmilk" => "20.00"
"Stotalmilk" => "71.50"
"Dtotalbmilk" => "40.00"
"Dtotala2milk" => "0.00"
"Dtotaljmilk" => "0.00"
"Dtotalmilk" => "40.00"
]
in the above array i am to add "TOTAL" at he bottom which value will be addition of 2 values ( "Stotalmilk" and "Dtotalmilk" ). Expected array will be
array:7 [▼
"2022-12-04" => array:9 [▼
"startdate" => "2022-12-04"
"Stotalbmilk" => "29.00"
"Stotala2milk" => "22.50"
"Stotaljmilk" => "20.00"
**"Stotalmilk" => "71.50"**
"Dtotalbmilk" => "40.00"
"Dtotala2milk" => "0.00"
"Dtotaljmilk" => "0.00"
**"Dtotalmilk" => "40.00"**
**"TOTAL" => "111.50"**
]
hope i properly explain my question and sorry for poor english.
Thanks in advance

So if your array have many dates with data, you can do something like:
$result = [];
foreach ($array as $date => $amounts) {
$total = (float) $amounts['Stotalmilk'] + (float) $amounts['Dtotalmilk'];
$amounts['TOTAL'] = number_format($total, 2, '.');
$result[$date] = $amounts;
}

Laravel Collection with groupby, count and sum

I'm struggling to get a groupby on a collection to work - I'm not getting the concept just yet.
I'm pulling a collection of results from a table for a player the eloquent collection will have data like this:
['player_id'=>1, 'opposition_id'=>10, 'result'=>'won', 'points'=>2],
['player_id'=>1, 'opposition_id'=>11, 'result'=>'lost', 'points'=>0],
['player_id'=>1, 'opposition_id'=>12, 'result'=>'lost', 'points'=>0],
['player_id'=>1, 'opposition_id'=>10, 'result'=>'won', 'points'=>2],
['player_id'=>1, 'opposition_id'=>11, 'result'=>'lost', 'points'=>0],
['player_id'=>1, 'opposition_id'=>10, 'result'=>'lost', 'points'=>0],
['player_id'=>1, 'opposition_id'=>12, 'result'=>'won', 'points'=>2],
I want to be able to groupBy('opposition_id') and then give me a count of results in total, total won, total lost and sum of points to end up with a collection like this:
['opposition_id'=>10, 'results'=>3, 'won'=>2, 'lost'=>1, 'points'=>4],
['opposition_id'=>11, 'results'=>2, 'won'=>0, 'lost'=>2, 'points'=>0],
['opposition_id'=>10, 'results'=>2, 'won'=>1, 'lost'=>1, 'points'=>2]
I'm trying to avoid going back to the database to do this as I already have the results from previous activity.
How can I do this using Laravel collection methods, So far all I have is:
$stats = $results->groupBy('opposition_id');
I've looked at map() but do not yet understand that method to work through a solution
Can anyone point me in the right direction please.
Happy to go back to the database if needed but assumed I could do this with the collection I already have rather than create another query. Solutions I've found on here all appear to be providing a solution in the query
Thank you

Take a look here, working code with explanation in comments.
// make a collection
$c = collect(
[
['player_id' => 1, 'opposition_id' => 10, 'result' => 'won', 'points' => 2],
['player_id' => 1, 'opposition_id' => 11, 'result' => 'lost', 'points' => 0],
['player_id' => 1, 'opposition_id' => 12, 'result' => 'lost', 'points' => 0],
['player_id' => 1, 'opposition_id' => 10, 'result' => 'won', 'points' => 2],
['player_id' => 1, 'opposition_id' => 11, 'result' => 'lost', 'points' => 0],
['player_id' => 1, 'opposition_id' => 10, 'result' => 'lost', 'points' => 0],
['player_id' => 1, 'opposition_id' => 12, 'result' => 'won', 'points' => 2]
]
);
// this only splits the rows into groups without any thing else.
// $groups will be a collection, it's keys are 'opposition_id' and it's values collections of rows with the same opposition_id.
$groups = $c->groupBy('opposition_id');
// we will use map to cumulate each group of rows into single row.
// $group is a collection of rows that has the same opposition_id.
$groupwithcount = $groups->map(function ($group) {
return [
'opposition_id' => $group->first()['opposition_id'], // opposition_id is constant inside the same group, so just take the first or whatever.
'points' => $group->sum('points'),
'won' => $group->where('result', 'won')->count(),
'lost' => $group->where('result', 'lost')->count(),
];
});
// if you don't like to take the first opposition_id you can use mapWithKeys:
$groupwithcount = $groups->mapWithKeys(function ($group, $key) {
return [
$key =>
[
'opposition_id' => $key, // $key is what we grouped by, it'll be constant by each group of rows
'points' => $group->sum('points'),
'won' => $group->where('result', 'won')->count(),
'lost' => $group->where('result', 'lost')->count(),
]
];
});
// here $groupwithcount will give you objects/arrays keyed by opposition_id:
[
10 => ["opposition_id" => 10,"points" => 4,"won" => 2,"lost" => 1]
11 => ["opposition_id" => 11,"points" => 0,"won" => 0,"lost" => 2]
12 => ["opposition_id" => 12,"points" => 2,"won" => 1,"lost" => 1]
]
// if you use $groupwithcount->values() it'll reset the keys to 0 based sequence as usual:
[
0 => ["opposition_id" => 10,"points" => 4,"won" => 2,"lost" => 1]
1 => ["opposition_id" => 11,"points" => 0,"won" => 0,"lost" => 2]
2 => ["opposition_id" => 12,"points" => 2,"won" => 1,"lost" => 1]
]

ElasticSearch Aggregation Past _source

I am trying to get a list of all possible article groups. My Product array example is like so:
[8] => Array
(
[_index] => product_index
[_type] => product_51_DEU
[_id] => AV7mxnScT3P3M-G9u9aK
[_score] => 1
[_source] => Array
(
[artikelnummer] => G123456
[produktname] => My Cool Name Here
[artikeltext] => BLA
[produktgruppe] => Car Products
[anwendungsbezeichnung] => Wash Products
[lieferant] => Turtle
)
)
My PHP search parameter looks like this:
$mainMenuParams = [
'index' => 'product_index',
'type' => 'product_51_DEU',
'body' => [
'aggs' => [
'_SOURCE' => [
'terms' => [
'field' => '_source.produktgruppe'
]
]
]
]
];
$listProduktGroup = $GLOBALS["client"]->search($mainMenuParams);
I get an answer but there are no aggregations. I have tried many combinations, but none seem to work. Anyone have any idea where this is wrong? I want to see an aggregation with an output of all of the possible [produktgruppe]. There are 10 Groups in all, but it would be nice to see this in the results and then maybe even a count of all products in each group.
If I do the exact same query on "_types" I get accurate results.

using Nest DateRange

Using this example, I came up with the following query. I don't get any results from this, but if I replace "01/01/2017" with 'null' then I get records (all from 2014 so i know it should be returning data). Can anyone help me please?
var response = elasticClient.Search<AnalyticsFormData>(x => x
.Type("formdata")
.Size(500)
.Query(q => q.Bool(b => b.Must
(mu => mu.MatchPhrase(m => m
.Field(f => f.AppId)
.Query(input.FormAppId)))
.Filter(fi => fi
.DateRange(r => r
.Field(f => f.LastUpdated)
.LessThanOrEquals(DateMath.Anchored("01/01/2017"))))))
.Sort(s => s.Ascending(f => f.LastUpdated)));

Either you have an incorrect field mapping, or incorrect date format. Try the following:
Create a new index with automapping
elasticClient.CreateIndex(indexName,
create => create.Mappings(
mappings => mappings.Map<AnalyticsFormData>(map => map.AutoMap())
)
);
Use the following approach to set the date
var response = client.Search<AnalyticsFormData>(x => x
.Size(500)
.Query(q => q.Bool(b => b.Must
(mu => mu.MatchPhrase(m => m
.Field(f => f.AppId).Query("FormAppId")))
.Filter(fi => fi
.DateRange(r => r
.Field(f => f.LastUpdated)
.LessThanOrEquals(new DateTime(2017, 1, 1))))))
.Sort(s => s.Ascending(f => f.LastUpdated)));

How to do mongoid 'not_in' 'greater than' query

If I want to search a mongoid model with attribute greater than 100 I would do this.
Model.where({'price' => {'$gt' => 100}})
How do I do search a mongoid model without attribute greater than 100?
Tried this and failed.
Model.not_in({'price' => [{'$gt' => 100}]})
Additional info:
In the end of the day would like to make a query like so:
criteria = {
'price' => [{'$gt' => 100}],
'size' => 'large',
'brand' => 'xyz'
}
Model.not_in(criteria)
As the criteria would be dynamically created.

model without attribute greater than 100 = model with attribute less than or equal to 100?
Model.where({'price' => {'$lte' => 100}})

Try this
Model.where(:price.lte => 100,:size.ne => 'large',:brand.ne => 'xzy')

Try using the .ne() (not equals) operator
Model.where({:price.lte => 100}).ne({:size => 'large', :brand => 'xzy'})
You can also find the Mongoid documentation here http://mongoid.org/en/origin/docs/selection.html#negation

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