128 lines
5.0 KiB
Objective-C
128 lines
5.0 KiB
Objective-C
/*
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* Copyright 2017 Google
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#import <Foundation/Foundation.h>
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NS_ASSUME_NONNULL_BEGIN
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@class FIRDocumentReference;
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@class FIRDocumentSnapshot;
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/**
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* `FIRTransaction` provides methods to read and write data within a transaction.
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*
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* @see FIRFirestore#transaction:completion:
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*/
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NS_SWIFT_NAME(Transaction)
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@interface FIRTransaction : NSObject
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/** :nodoc: */
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- (id)init __attribute__((unavailable("FIRTransaction cannot be created directly.")));
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/**
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* Writes to the document referred to by `document`. If the document doesn't yet exist,
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* this method creates it and then sets the data. If the document exists, this method overwrites
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* the document data with the new values.
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*
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* @param data An `NSDictionary` that contains the fields and data to write to the document.
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* @param document A reference to the document whose data should be overwritten.
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* @return This `FIRTransaction` instance. Used for chaining method calls.
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*/
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// clang-format off
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- (FIRTransaction *)setData:(NSDictionary<NSString *, id> *)data
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forDocument:(FIRDocumentReference *)document
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NS_SWIFT_NAME(setData(_:forDocument:));
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// clang-format on
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/**
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* Writes to the document referred to by `document`. If the document doesn't yet exist,
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* this method creates it and then sets the data. If you pass `merge:YES`, the provided data will be
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* merged into any existing document.
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*
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* @param data An `NSDictionary` that contains the fields and data to write to the document.
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* @param document A reference to the document whose data should be overwritten.
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* @param merge Whether to merge the provided data into any existing document.
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* @return This `FIRTransaction` instance. Used for chaining method calls.
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*/
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// clang-format off
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- (FIRTransaction *)setData:(NSDictionary<NSString *, id> *)data
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forDocument:(FIRDocumentReference *)document
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merge:(BOOL)merge
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NS_SWIFT_NAME(setData(_:forDocument:merge:));
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// clang-format on
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/**
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* Writes to the document referred to by `document` and only replace the fields
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* specified under `mergeFields`. Any field that is not specified in `mergeFields`
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* is ignored and remains untouched. If the document doesn't yet exist,
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* this method creates it and then sets the data.
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*
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* It is an error to include a field in `mergeFields` that does not have a corresponding
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* value in the `data` dictionary.
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*
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* @param data An `NSDictionary` containing the fields that make up the document
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* to be written.
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* @param document A reference to the document whose data should be overwritten.
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* @param mergeFields An `NSArray` that contains a list of `NSString` or `FIRFieldPath` elements
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* specifying which fields to merge. Fields can contain dots to reference nested fields within
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* the document.
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* @return This `FIRTransaction` instance. Used for chaining method calls.
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*/
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// clang-format off
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- (FIRTransaction *)setData:(NSDictionary<NSString *, id> *)data
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forDocument:(FIRDocumentReference *)document
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mergeFields:(NSArray<id> *)mergeFields
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NS_SWIFT_NAME(setData(_:forDocument:mergeFields:));
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// clang-format on
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/**
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* Updates fields in the document referred to by `document`.
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* If the document does not exist, the transaction will fail.
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*
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* @param fields An `NSDictionary` containing the fields (expressed as an `NSString` or
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* `FIRFieldPath`) and values with which to update the document.
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* @param document A reference to the document whose data should be updated.
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* @return This `FIRTransaction` instance. Used for chaining method calls.
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*/
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// clang-format off
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- (FIRTransaction *)updateData:(NSDictionary<id, id> *)fields
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forDocument:(FIRDocumentReference *)document
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NS_SWIFT_NAME(updateData(_:forDocument:));
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// clang-format on
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/**
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* Deletes the document referred to by `document`.
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*
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* @param document A reference to the document that should be deleted.
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* @return This `FIRTransaction` instance. Used for chaining method calls.
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*/
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- (FIRTransaction *)deleteDocument:(FIRDocumentReference *)document
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NS_SWIFT_NAME(deleteDocument(_:));
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/**
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* Reads the document referenced by `document`.
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*
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* @param document A reference to the document to be read.
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* @param error An out parameter to capture an error, if one occurred.
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*/
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- (FIRDocumentSnapshot *_Nullable)getDocument:(FIRDocumentReference *)document
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error:(NSError *__autoreleasing *)error
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NS_SWIFT_NAME(getDocument(_:));
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@end
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NS_ASSUME_NONNULL_END
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