Cloud Firestore V1 Client - Class StructuredQuery (1.28.0)

Reference documentation and code samples for the Cloud Firestore V1 Client class StructuredQuery.

A Firestore query.

Generated from protobuf message google.firestore.v1.StructuredQuery

Methods

__construct

Constructor.

Parameters
NameDescription
data array

Optional. Data for populating the Message object.

↳ select Google\Cloud\Firestore\V1\StructuredQuery\Projection

The projection to return.

↳ from array<Google\Cloud\Firestore\V1\StructuredQuery\CollectionSelector>

The collections to query.

↳ where Google\Cloud\Firestore\V1\StructuredQuery\Filter

The filter to apply.

↳ order_by array<Google\Cloud\Firestore\V1\StructuredQuery\Order>

The order to apply to the query results. Firestore allows callers to provide a full ordering, a partial ordering, or no ordering at all. In all cases, 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

↳ start_at Google\Cloud\Firestore\V1\Cursor

A potential prefix of a position in the result set to start the query at. The ordering of the result set is based on the ORDER BY clause of the original query. SELECT * FROM k WHERE a = 1 AND b > 2 ORDER BY b ASC, __name__ ASC; This query's results are ordered by (b ASC, __name__ ASC). Cursors can reference either the full ordering or a prefix of the location, though it cannot reference more fields than what are in the provided ORDER BY. Continuing off the example above, attaching the following start cursors will have varying impact: - START BEFORE (2, /k/123): start the query right before a = 1 AND b > 2 AND __name__ > /k/123. - START AFTER (10): start the query right after a = 1 AND b > 10. Unlike OFFSET which requires scanning over the first N results to skip, a start cursor allows the query to begin at a logical position. This position is not required to match an actual result, it will scan forward from this position to find the next document. Requires: * The number of values cannot be greater than the number of fields specified in the ORDER BY clause.

↳ end_at Google\Cloud\Firestore\V1\Cursor

A potential prefix of a position in the result set to end the query at. This is similar to START_AT but with it controlling the end position rather than the start position. Requires: * The number of values cannot be greater than the number of fields specified in the ORDER BY clause.

↳ offset int

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.

↳ limit Google\Protobuf\Int32Value

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.

getSelect

The projection to return.

Returns
TypeDescription
Google\Cloud\Firestore\V1\StructuredQuery\Projection|null

hasSelect

clearSelect

setSelect

The projection to return.

Parameter
NameDescription
var Google\Cloud\Firestore\V1\StructuredQuery\Projection
Returns
TypeDescription
$this

getFrom

The collections to query.

Returns
TypeDescription
Google\Protobuf\Internal\RepeatedField

setFrom

The collections to query.

Parameter
NameDescription
var array<Google\Cloud\Firestore\V1\StructuredQuery\CollectionSelector>
Returns
TypeDescription
$this

getWhere

The filter to apply.

Returns
TypeDescription
Google\Cloud\Firestore\V1\StructuredQuery\Filter|null

hasWhere

clearWhere

setWhere

The filter to apply.

Parameter
NameDescription
var Google\Cloud\Firestore\V1\StructuredQuery\Filter
Returns
TypeDescription
$this

getOrderBy

The order to apply to the query results.

Firestore allows callers to provide a full ordering, a partial ordering, or no ordering at all. In all cases, 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
Returns
TypeDescription
Google\Protobuf\Internal\RepeatedField

setOrderBy

The order to apply to the query results.

Firestore allows callers to provide a full ordering, a partial ordering, or no ordering at all. In all cases, 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
Parameter
NameDescription
var array<Google\Cloud\Firestore\V1\StructuredQuery\Order>
Returns
TypeDescription
$this

getStartAt

A potential prefix of a position in the result set to start the query at.

The ordering of the result set is based on the ORDER BY clause of the original query.

SELECT * FROM k WHERE a = 1 AND b > 2 ORDER BY b ASC, __name__ ASC;

This query's results are ordered by (b ASC, __name__ ASC). Cursors can reference either the full ordering or a prefix of the location, though it cannot reference more fields than what are in the provided ORDER BY. Continuing off the example above, attaching the following start cursors will have varying impact:

  • START BEFORE (2, /k/123): start the query right before a = 1 AND b > 2 AND __name__ > /k/123.
  • START AFTER (10): start the query right after a = 1 AND b > 10. Unlike OFFSET which requires scanning over the first N results to skip, a start cursor allows the query to begin at a logical position. This position is not required to match an actual result, it will scan forward from this position to find the next document. Requires:
  • The number of values cannot be greater than the number of fields specified in the ORDER BY clause.
Returns
TypeDescription
Google\Cloud\Firestore\V1\Cursor|null

hasStartAt

clearStartAt

setStartAt

A potential prefix of a position in the result set to start the query at.

The ordering of the result set is based on the ORDER BY clause of the original query.

SELECT * FROM k WHERE a = 1 AND b > 2 ORDER BY b ASC, __name__ ASC;

This query's results are ordered by (b ASC, __name__ ASC). Cursors can reference either the full ordering or a prefix of the location, though it cannot reference more fields than what are in the provided ORDER BY. Continuing off the example above, attaching the following start cursors will have varying impact:

  • START BEFORE (2, /k/123): start the query right before a = 1 AND b > 2 AND __name__ > /k/123.
  • START AFTER (10): start the query right after a = 1 AND b > 10. Unlike OFFSET which requires scanning over the first N results to skip, a start cursor allows the query to begin at a logical position. This position is not required to match an actual result, it will scan forward from this position to find the next document. Requires:
  • The number of values cannot be greater than the number of fields specified in the ORDER BY clause.
Parameter
NameDescription
var Google\Cloud\Firestore\V1\Cursor
Returns
TypeDescription
$this

getEndAt

A potential prefix of a position in the result set to end the query at.

This is similar to START_AT but with it controlling the end position rather than the start position. Requires:

  • The number of values cannot be greater than the number of fields specified in the ORDER BY clause.
Returns
TypeDescription
Google\Cloud\Firestore\V1\Cursor|null

hasEndAt

clearEndAt

setEndAt

A potential prefix of a position in the result set to end the query at.

This is similar to START_AT but with it controlling the end position rather than the start position. Requires:

  • The number of values cannot be greater than the number of fields specified in the ORDER BY clause.
Parameter
NameDescription
var Google\Cloud\Firestore\V1\Cursor
Returns
TypeDescription
$this

getOffset

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.
Returns
TypeDescription
int

setOffset

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.
Parameter
NameDescription
var int
Returns
TypeDescription
$this

getLimit

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.
Returns
TypeDescription
Google\Protobuf\Int32Value|null

hasLimit

clearLimit

getLimitValue

Returns the unboxed value from getLimit()

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.
Returns
TypeDescription
int|null

setLimit

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.
Parameter
NameDescription
var Google\Protobuf\Int32Value
Returns
TypeDescription
$this

setLimitValue

Sets the field by wrapping a primitive type in a Google\Protobuf\Int32Value object.

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.
Parameter
NameDescription
var int|null
Returns
TypeDescription
$this