updateByQuery #

Updates documents matching the provided search query.

Kuzzle uses the ElasticSearch Query DSL syntax.

Available since change-me

This method also supports the Koncorde Filters DSL to match documents by passing the lang argument with the value koncorde.
Koncorde filters will be translated into an Elasticsearch query.

Koncorde bool operator and regexp clause are not supported for search queries.

An empty or null query will match all documents in the collection.

Future<Map<String, dynamic>> updateByQuery(
    String index,
    String collection,
    {
    @required Map<String, dynamic> searchQuery,
    @required Map<String, dynamic> changes,
    bool waitForRefresh = false,
    bool source = false,
    String lang
  })

Argument	Type	Description
`index`	String	Index name
`collection`	String	Collection name
`searchQuery`	Map<String, dynamic>	Query to match
`changes`	Map<String, dynamic>	Partial changes to apply to the documents
`waitForRefresh`	bool (`false`)	If set to `true`, Kuzzle will wait for the persistence layer to finish indexing
`source`	bool (`false`)	If true, returns the updated document inside the response
`lang`	String	Specify the query language to use. By default, it's `elasticsearch` but `koncorde` can also be used. Available since change-me

Returns #

A Map<String, dynamic> which has a successes and errors: Each updated document is an object of the successes array with the following properties:

Property	Type	Description
`_source`	Map<String, dynamic>	Updated document (if `source` option set to true)
`_id`	String	ID of the udated document
`_version`	int	Version of the document in the persistent data storage
`status`	int	HTTP status code

Each errored document is an object of the errors array with the following properties:

Property	Type	Description
`document`	Map<String, dynamic>	Document that causes the error
`status`	int	HTTP error status
`reason`	String	Human readable reason

Usage #

With the ElasticSearch Query DSL syntax.

final result = await kuzzle
  .document
  .updateByQuery('nyc-open-data', 'yellow-taxi', searchQuery: {
    'match': {
      'capacity': 4,
    },
  }, 
  changes: {
    'capacity': 42,
  });

With the Koncorde Filters DSL syntax.

final result = await kuzzle
  .document
  .updateByQuery('nyc-open-data', 'yellow-taxi', searchQuery: {
    'equals': {
      'capacity': 4,
    },
  }, 
  changes: {
    'capacity': 42,
  }, lang: 'koncorde');

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