44 lines
2.1 KiB
Objective-C
44 lines
2.1 KiB
Objective-C
//
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// The MIT License (MIT)
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// Copyright (c) 2019 Oleg Geier
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy of
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// this software and associated documentation files (the "Software"), to deal in
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// the Software without restriction, including without limitation the rights to
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// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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// of the Software, and to permit persons to whom the Software is furnished to do
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// so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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@import Cocoa;
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NS_ASSUME_NONNULL_BEGIN
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@interface NSFetchRequest<ResultType> (Ext)
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// Perform core data request and fetch data
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- (NSArray<ResultType>*)fetchAllRows:(NSManagedObjectContext*)moc;
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- (NSArray<NSManagedObjectID*>*)fetchIDs:(NSManagedObjectContext*)moc;
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- (NSDictionary*)fetchFirstDict:(NSManagedObjectContext*)moc; // limit 1
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- (ResultType)fetchFirst:(NSManagedObjectContext*)moc; // limit 1
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- (NSUInteger)fetchCount:(NSManagedObjectContext*)moc;
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// Selecting, filtering, sorting results
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- (instancetype)select:(NSArray<NSString*>*)cols; // sets .propertiesToFetch
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- (instancetype)where:(NSString*)format, ...; // sets .predicate
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- (instancetype)sortASC:(NSString*)key; // add .sortDescriptors -> ascending:YES
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- (instancetype)sortDESC:(NSString*)key; // add .sortDescriptors -> ascending:NO
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- (instancetype)addFunctionExpression:(NSString*)fn onKeyPath:(NSString*)keyPath name:(NSString*)name type:(NSAttributeType)type; // add .propertiesToFetch -> (expressionForFunction:@[expressionForKeyPath:])
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@end
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NS_ASSUME_NONNULL_END
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