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Generic NSFetchedResultsController data source
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| // TGRFetchedResultsDataSource.h | ||
| // | ||
| // Copyright (c) 2014 Guillermo Gonzalez | ||
| // | ||
| // Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| // of this software and associated documentation files (the "Software"), to deal | ||
| // in the Software without restriction, including without limitation the rights | ||
| // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| // copies of the Software, and to permit persons to whom the Software is | ||
| // furnished to do so, subject to the following conditions: | ||
| // | ||
| // The above copyright notice and this permission notice shall be included in | ||
| // all copies or substantial portions of the Software. | ||
| // | ||
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
| // THE SOFTWARE. | ||
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| #import <CoreData/CoreData.h> | ||
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| #import "TGRDataSource.h" | ||
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| /** | ||
| A `TGRDataSource` subclass that takes data from a `NSFetchedResultsController`. | ||
| */ | ||
| @interface TGRFetchedResultsDataSource : TGRDataSource | ||
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| /** | ||
| The `NSFetchedResultsController` object managed by this data source. | ||
| */ | ||
| @property (strong, nonatomic, readonly) NSFetchedResultsController *fetchedResultsController; | ||
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| /** | ||
| Initializes the data source. | ||
| @param controller The `NSFetchedResultsController` object managed by this data source. | ||
| @param reuseIdentifier The cell reuse identifier. | ||
| @param configureCellBlock A block that will be called when the view asks for a cell in a particular location. | ||
| @return An initialized data source. | ||
| */ | ||
| - (id)initWithFetchedResultsController:(NSFetchedResultsController *)controller | ||
| cellReuseIdentifier:(NSString *)reuseIdentifier | ||
| configureCellBlock:(TGRDataSourceCellBlock)configureCellBlock; | ||
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| @end |
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| // TGRFetchedResultsDataSource.m | ||
| // | ||
| // Copyright (c) 2014 Guillermo Gonzalez | ||
| // | ||
| // Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| // of this software and associated documentation files (the "Software"), to deal | ||
| // in the Software without restriction, including without limitation the rights | ||
| // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| // copies of the Software, and to permit persons to whom the Software is | ||
| // furnished to do so, subject to the following conditions: | ||
| // | ||
| // The above copyright notice and this permission notice shall be included in | ||
| // all copies or substantial portions of the Software. | ||
| // | ||
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
| // THE SOFTWARE. | ||
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| #import "TGRFetchedResultsDataSource.h" | ||
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| @implementation TGRFetchedResultsDataSource | ||
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| - (id)initWithFetchedResultsController:(NSFetchedResultsController *)controller | ||
| cellReuseIdentifier:(NSString *)reuseIdentifier | ||
| configureCellBlock:(TGRDataSourceCellBlock)configureCellBlock | ||
| { | ||
| self = [super initWithCellReuseIdentifier:reuseIdentifier configureCellBlock:configureCellBlock]; | ||
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| if (self) { | ||
| _fetchedResultsController = controller; | ||
| } | ||
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| return self; | ||
| } | ||
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| - (id)itemAtIndexPath:(NSIndexPath *)indexPath { | ||
| return [self.fetchedResultsController objectAtIndexPath:indexPath]; | ||
| } | ||
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| - (NSIndexPath *)indexPathForItem:(id)item { | ||
| return [self.fetchedResultsController indexPathForObject:item]; | ||
| } | ||
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| #pragma mark - UITableViewDataSource | ||
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| - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { | ||
| return [self.fetchedResultsController.sections count]; | ||
| } | ||
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| - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { | ||
| id<NSFetchedResultsSectionInfo> sectionInfo = self.fetchedResultsController.sections[section]; | ||
| return [sectionInfo numberOfObjects]; | ||
| } | ||
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| #pragma mark - UICollectionViewDataSource | ||
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| - (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView { | ||
| return [self.fetchedResultsController.sections count]; | ||
| } | ||
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| - (NSInteger)collectionView:(UICollectionView *)collectionView | ||
| numberOfItemsInSection:(NSInteger)section | ||
| { | ||
| id<NSFetchedResultsSectionInfo> sectionInfo = self.fetchedResultsController.sections[section]; | ||
| return [sectionInfo numberOfObjects]; | ||
| } | ||
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| @end |