DittoScopedWriteTransaction
public class DittoScopedWriteTransaction
DittoScopedWriteTransaction
exposes functionality that allows you to perform multiple operations on the store
within a single write transaction.
-
The name of the collection that the scoped write transaction is scoped to.
Declaration
Swift
public var collectionName: DittoCollectionName { get }
-
Insert a document into the scoped collection.
Throws
DittoSwiftError
.Declaration
Swift
@discardableResult public func insert( _ content: [String: Any?], withID id: DittoDocumentID? = nil, isDefault: Bool = false ) throws -> DittoDocumentID
Parameters
document
The document to insert.
id
The ID to use for the document. If null then Ditto will automatically assign an ID.
isDefault
Represents whether or not the data being inserted should be treated as default data or not. Set this to
true
if you want to set a default value that you expect to be overwritten by other devices in the network. The default value isfalse
.Return Value
The ID of the inserted document.
-
Insert a document into the scoped collection.
Throws
DittoSwiftError
.Declaration
Swift
@discardableResult public func insertWithStrategy( _ content: [String: Any?], id: DittoDocumentID? = nil, writeStrategy: DittoWriteStrategy = .overwrite ) throws -> DittoDocumentID
Parameters
document
The document to insert.
id
The ID to use for the document. If null then Ditto will automatically assign an ID.
writeStrategy
Specifies the desired strategy for inserting a document. The default value is
.overwrite
.Return Value
The ID of the inserted document.
-
Insert a document into the scoped collection.
Throws
DittoSwiftError
.Declaration
Swift
@discardableResult public func insert<T: Codable>( _ content: T, withID id: DittoDocumentID? = nil, isDefault: Bool = false ) throws -> DittoDocumentID
Parameters
document
The document to insert.
id
The ID to use for the document. If null then Ditto will automatically assign an ID.
isDefault
Represents whether or not the data being inserted should be treated as default data or not. Set this to
true
if you want to set a default value that you expect to be overwritten by other devices in the network. The default value isfalse
.Return Value
The ID of the inserted document.
-
Insert a document into the scoped collection.
Throws
DittoSwiftError
.Declaration
Swift
@discardableResult public func insertWithStrategy<T: Codable>( _ content: T, id: DittoDocumentID? = nil, writeStrategy: DittoWriteStrategy = .overwrite ) throws -> DittoDocumentID
Parameters
document
The document to insert.
id
The ID to use for the document. If null then Ditto will automatically assign an ID.
writeStrategy
Specifies the desired strategy for inserting a document. The default value is
.overwrite
.Return Value
The ID of the inserted document.
-
Generates a
DittoWriteTransactionPendingIDSpecificOperation
with the provided document ID that can be used to update, remove, or evict the document.Throws
DittoSwiftError
.Declaration
Swift
public func findByID(_ id: DittoDocumentID) -> DittoWriteTransactionPendingIDSpecificOperation
Parameters
id
The ID of the document.
Return Value
A
DittoWriteTransactionPendingIDSpecificOperation
that you can chain function calls to update, remove, or evict the document. -
Generates a
DittoWriteTransactionPendingIDSpecificOperation
with the provided document ID that can be used to update, remove, or evict the document.Throws
DittoSwiftError
.Declaration
Swift
public func findByID(_ id: Any) -> DittoWriteTransactionPendingIDSpecificOperation
Parameters
id
The ID of the document.
Return Value
A
DittoWriteTransactionPendingIDSpecificOperation
that you can chain function calls to update, remove, or evict the document. -
Generates a
DittoWriteTransactionPendingCursorOperation
with the provided query that can be used to update, remove, or evict documents.Declaration
Swift
@available(*, deprecated, message: "use the version of `find` that doesn't require an argument label instead") public func find(query: String) -> DittoWriteTransactionPendingCursorOperation
Parameters
query
The query to run against the collection.
Return Value
A
DittoWriteTransactionPendingCursorOperation
that you can use to chain further query-related function calls to update, remove, or evict the documents. -
Generates a
DittoWriteTransactionPendingCursorOperation
with the provided query that can be used to update, remove, or evict documents.Declaration
Swift
public func find(_ query: String) -> DittoWriteTransactionPendingCursorOperation
Parameters
query
The query to run against the collection.
Return Value
A
DittoWriteTransactionPendingCursorOperation
that you can use to chain further query-related function calls to update, remove, or evict the documents. -
Generates a
DittoWriteTransactionPendingCursorOperation
with the provided query and query arguments that can be used to update, remove, or evict documents.This is the recommended function to use when performing queries on a collection if you have any dynamic data included in the query string. It allows you to provide a query string with placeholders, in the form of
$args.my_arg_name
, along with an accompanying dictionary of arguments, in the form of{ "my_arg_name": "some value" }
, and the placeholders will be appropriately replaced by the matching provided arguments from the dictionary. This includes handling things like wrapping strings in quotation marks and arrays in square brackets, for example.Declaration
Swift
public func find(_ query: String, args queryArgs: Dictionary<String, Any?>) -> DittoWriteTransactionPendingCursorOperation
Parameters
query
The query to run against the collection.
queryArgs
The arguments to use to replace placeholders in the provided query.
Return Value
A
DittoWriteTransactionPendingCursorOperation
that you can use to chain further query-related function calls to update, remove, or evict the documents. -
Generates a
DittoWriteTransactionPendingCursorOperation
that can be used to update, remove or evict documents.Declaration
Swift
public func findAll() -> DittoWriteTransactionPendingCursorOperation
Return Value
A
DittoWriteTransactionPendingCursorOperation
that you can use to chain further query-related function calls to update, remove, or evict the documents.