Class: Google::Apis::FirestoreV1::StructuredQuery

Inherits:
Object
  • Object
show all
Includes:
Core::Hashable, Core::JsonObjectSupport
Defined in:
lib/google/apis/firestore_v1/classes.rb,
lib/google/apis/firestore_v1/representations.rb,
lib/google/apis/firestore_v1/representations.rb

Overview

A Firestore query. The query stages are executed in the following order: 1. from 2. where 3. select 4. order_by + start_at + end_at 5. offset 6. limit 7. find_nearest

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(**args) ⇒ StructuredQuery

Returns a new instance of StructuredQuery.



4530
4531
4532
 
# File 'lib/google/apis/firestore_v1/classes.rb', line 4530

def initialize(**args)
   update!(**args)
end

Instance Attribute Details

#end_at ⇒ Google::Apis::FirestoreV1::Cursor

A position in a query result set. Corresponds to the JSON property endAt

Returns:



4463
4464
4465
 
# File 'lib/google/apis/firestore_v1/classes.rb', line 4463

def end_at
  @end_at
end

#find_nearest ⇒ Google::Apis::FirestoreV1::FindNearest

Nearest Neighbors search config. The ordering provided by FindNearest supersedes the order_by stage. If multiple documents have the same vector distance, the returned document order is not guaranteed to be stable between queries. Corresponds to the JSON property findNearest

Returns:



4471
4472
4473
 
# File 'lib/google/apis/firestore_v1/classes.rb', line 4471

def find_nearest
  @find_nearest
end

#from ⇒ Array<Google::Apis::FirestoreV1::CollectionSelector>

The collections to query. Corresponds to the JSON property from

Returns:



4476
4477
4478
 
# File 'lib/google/apis/firestore_v1/classes.rb', line 4476

def from
  @from
end

#limit ⇒ Fixnum

The maximum number of results to return. Applies after all other constraints. Requires: * The value must be greater than or equal to zero if specified. Corresponds to the JSON property limit

Returns:

  • (Fixnum) 


4482
4483
4484
 
# File 'lib/google/apis/firestore_v1/classes.rb', line 4482

def limit
  @limit
end

#offset ⇒ Fixnum

The number of documents to skip before returning the first result. This applies after the constraints specified by the WHERE, START AT, & END AT but before the LIMIT clause. Requires: * The value must be greater than or equal to zero if specified. Corresponds to the JSON property offset

Returns:

  • (Fixnum) 


4490
4491
4492
 
# File 'lib/google/apis/firestore_v1/classes.rb', line 4490

def offset
  @offset
end

#order_by ⇒ Array<Google::Apis::FirestoreV1::Order>

The order to apply to the query results. Callers can provide a full ordering, a partial ordering, or no ordering at all. While Firestore will always respect the provided order, the behavior for queries without a full ordering is different per database edition: In Standard edition, Firestore guarantees a stable ordering through the following rules: * The order_by is required to reference all fields used with an inequality filter. * All fields that are required to be in the order_by but are not already present are appended in lexicographical ordering of the field name. * If an order on __name__ is not specified, it is appended by default. Fields are appended with the same sort direction as the last order specified, or 'ASCENDING' if no order was specified. For example: * ORDER BY a becomes ORDER BY a ASC, __name__ ASC * ORDER BY a DESC becomes ORDER BY a DESC, __name__ DESC * WHERE a > 1 becomes WHERE a > 1 ORDER BY a ASC, __name__ ASC * WHERE __name__ > ... AND a > 1 becomes WHERE __name__ > ... AND a > 1 ORDER BY a ASC, __name__ ASC In Enterprise edition, Firestore does not guarantee a stable ordering. Instead it will pick the most efficient ordering based on the indexes available at the time of query execution. This will result in a different ordering for queries that are otherwise identical. To ensure a stable ordering, always include a unique field in the order_by clause, such as __name__. Corresponds to the JSON property orderBy

Returns:



4513
4514
4515
 
# File 'lib/google/apis/firestore_v1/classes.rb', line 4513

def order_by
  @order_by
end

#select ⇒ Google::Apis::FirestoreV1::Projection

The projection of document's fields to return. Corresponds to the JSON property select

Returns:



4518
4519
4520
 
# File 'lib/google/apis/firestore_v1/classes.rb', line 4518

def select
  @select
end

#start_at ⇒ Google::Apis::FirestoreV1::Cursor

A position in a query result set. Corresponds to the JSON property startAt

Returns:



4523
4524
4525
 
# File 'lib/google/apis/firestore_v1/classes.rb', line 4523

def start_at
  @start_at
end

#where ⇒ Google::Apis::FirestoreV1::Filter

A filter. Corresponds to the JSON property where

Returns:



4528
4529
4530
 
# File 'lib/google/apis/firestore_v1/classes.rb', line 4528

def where
  @where
end

Instance Method Details

#update!(**args) ⇒ Object

Update properties of this object



4535
4536
4537
4538
4539
4540
4541
4542
4543
4544
4545
 
# File 'lib/google/apis/firestore_v1/classes.rb', line 4535

def update!(**args)
  @end_at = args[:end_at] if args.key?(:end_at)
  @find_nearest = args[:find_nearest] if args.key?(:find_nearest)
  @from = args[:from] if args.key?(:from)
  @limit = args[:limit] if args.key?(:limit)
  @offset = args[:offset] if args.key?(:offset)
  @order_by = args[:order_by] if args.key?(:order_by)
  @select = args[:select] if args.key?(:select)
  @start_at = args[:start_at] if args.key?(:start_at)
  @where = args[:where] if args.key?(:where)
end