X-Git-Url: https://git.mdrn.pl/wl-app.git/blobdiff_plain/53b27422d140022594fc241cca91c3183be57bca..48b2fe9f7c2dc3d9aeaaa6dbfb27c7da4f3235ff:/iOS/Pods/Realm/include/RLMMigration.h

diff --git a/iOS/Pods/Realm/include/RLMMigration.h b/iOS/Pods/Realm/include/RLMMigration.h
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+////////////////////////////////////////////////////////////////////////////
+//
+// Copyright 2014 Realm Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+////////////////////////////////////////////////////////////////////////////
+
+#import <Foundation/Foundation.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@class RLMSchema;
+@class RLMArray;
+@class RLMObject;
+
+/**
+ A block type which provides both the old and new versions of an object in the Realm. Object
+ properties can only be accessed using keyed subscripting.
+
+ @see `-[RLMMigration enumerateObjects:block:]`
+
+ @param oldObject The object from the original Realm (read-only).
+ @param newObject The object from the migrated Realm (read-write).
+*/
+typedef void (^RLMObjectMigrationBlock)(RLMObject * __nullable oldObject, RLMObject * __nullable newObject);
+
+/**
+ `RLMMigration` instances encapsulate information intended to facilitate a schema migration.
+
+ A `RLMMigration` instance is passed into a user-defined `RLMMigrationBlock` block when updating
+ the version of a Realm. This instance provides access to the old and new database schemas, the
+ objects in the Realm, and provides functionality for modifying the Realm during the migration.
+ */
+@interface RLMMigration : NSObject
+
+#pragma mark - Properties
+
+/**
+ Returns the old `RLMSchema`. This is the schema which describes the Realm before the
+ migration is applied.
+ */
+@property (nonatomic, readonly) RLMSchema *oldSchema;
+
+/**
+ Returns the new `RLMSchema`. This is the schema which describes the Realm after the
+ migration is applied.
+ */
+@property (nonatomic, readonly) RLMSchema *newSchema;
+
+
+#pragma mark - Altering Objects during a Migration
+
+/**
+ Enumerates all the objects of a given type in the Realm, providing both the old and new versions
+ of each object. Within the block, object properties can only be accessed using keyed subscripting.
+
+ @param className   The name of the `RLMObject` class to enumerate.
+
+ @warning   All objects returned are of a type specific to the current migration and should not be cast
+            to `className`. Instead, treat them as `RLMObject`s and use keyed subscripting to access
+            properties.
+ */
+- (void)enumerateObjects:(NSString *)className block:(__attribute__((noescape)) RLMObjectMigrationBlock)block;
+
+/**
+ Creates and returns an `RLMObject` instance of type `className` in the Realm being migrated.
+
+ The `value` argument is used to populate the object. It can be a key-value coding compliant object, an array or
+ dictionary returned from the methods in `NSJSONSerialization`, or an array containing one element for each managed
+ property. An exception will be thrown if any required properties are not present and those properties were not defined
+ with default values.
+
+ When passing in an `NSArray` as the `value` argument, all properties must be present, valid and in the same order as
+ the properties defined in the model.
+
+ @param className   The name of the `RLMObject` class to create.
+ @param value       The value used to populate the object.
+ */
+- (RLMObject *)createObject:(NSString *)className withValue:(id)value;
+
+/**
+ Deletes an object from a Realm during a migration.
+
+ It is permitted to call this method from within the block passed to `-[enumerateObjects:block:]`.
+
+ @param object  Object to be deleted from the Realm being migrated.
+ */
+- (void)deleteObject:(RLMObject *)object;
+
+/**
+ Deletes the data for the class with the given name.
+
+ All objects of the given class will be deleted. If the `RLMObject` subclass no longer exists in your program,
+ any remaining metadata for the class will be removed from the Realm file.
+
+ @param  name The name of the `RLMObject` class to delete.
+
+ @return A Boolean value indicating whether there was any data to delete.
+ */
+- (BOOL)deleteDataForClassName:(NSString *)name;
+
+/**
+ Renames a property of the given class from `oldName` to `newName`.
+
+ @param className The name of the class whose property should be renamed. This class must be present
+                  in both the old and new Realm schemas.
+ @param oldName   The old name for the property to be renamed. There must not be a property with this name in the
+                  class as defined by the new Realm schema.
+ @param newName   The new name for the property to be renamed. There must not be a property with this name in the
+                  class as defined by the old Realm schema.
+ */
+- (void)renamePropertyForClass:(NSString *)className oldName:(NSString *)oldName newName:(NSString *)newName;
+
+@end
+
+NS_ASSUME_NONNULL_END