HowToSearch.md

How to search with Elasticsearch DSL

In this chapter we will take a look how to perform a search via objective way with Elasticsearch DSL. Well, the good news is that is very simple. That's why we created this library ;).

To start a search you have to create a Search object.

$search = new Search();

We won't include namespaces in any examples. Don't worry all class's names are unique, so any IDE editor should autocomplete and include it for you ;).

So, when we have a Search object we can start add something to it. Usually you will add Query, Filter and Aggregation.

More info how create queries, filters and aggregations objects.

Form a Query

Lets take a simple query example with MatchAllQuery.

$matchAllQuery = new MatchAllQuery();

To add query to the Search simply call addQuery function.

$search->addQuery($matchAllQuery);

At the end it will form this query:

{
  "query": {
      "match_all": {}
  }
}

There is no limits to add queries or filters or anything.

Form a Filter

To add a filter is the same way like a query. First, lets create some Filter object.

$matchAllFilter = new MatchAllFilter();

And simply add to the Search:

$search->addFilter($matchAllFilter);