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README.md

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Overview

CoreDataManager is a simple core data management library that supports following SQL operations:

  • Insert
  • Update
  • Delete
  • Search

Creating shared Instance and global context

  • create a shared Instance of CoreDataManager by the following code:

      + (CoreDataManager *)sharedCoreDataManager;

  • A global NSManagedObjectContext (one for all database operations throught) will be created using following method:

      + (NSManagedObjectContext *)globalContext;

Insert

Insert a record to an existing table

+ (NSError *)insertARecordWithRecordValues:(NSDictionary *)values ToTable:(NSString *)tableName InContext:(NSManagedObjectContext *)context;

Update

Update a record for a property (if the record exists) in an existing table

+ (NSError *)updateARecord:(NSManagedObject *)record WithNewRecordValues:(NSDictionary *)values InTable:(NSString *)tableName InContext:(NSManagedObjectContext *)context;

Delete

Delete a record from an existing table

+ (NSError *)deleteARecord:(NSManagedObject *)record InContext:(NSManagedObjectContext *)context;

Search

  1. fetch all records from a single table

     + (NSMutableArray *)fetchAllRecordsFromTable:(NSString *)tableName InContext:(NSManagedObjectContext *)context;

  2. fetch all records sorted by certain attribute

     + (NSMutableArray *)fetchAllRecordsFromTable:(NSString *)tableName sortedByAttribute:(NSString *)attributeName IsAscending:(BOOL)ascending InContext:(NSManagedObjectContext *)context;

  3. fetch records matched by a predicate

     + (NSMutableArray *)fetchRecordsFromTable:(NSString *)tableName MatchedByPredicate:(NSPredicate *)predicate InContext:(NSManagedObjectContext *)context;

  4. fetch records matched by a predicate, and sorted by certain attribute

     + (NSMutableArray *)fetchRecordsFromTable:(NSString *)tableName MatchedByPredicate:(NSPredicate *)predicate sortedByAttribute:(NSString *)attributeName IsAscending:(BOOL)ascending InContext:(NSManagedObjectContext *)context;

  5. fetch records defined by the criteria in NSFetchRequest

     + (NSMutableArray *)fetchRecordsWithFetchRequest:(NSFetchRequest *)request InContext:(NSManagedObjectContext *)context;

  6. fetch records with a value for an attribute

     + (NSMutableArray *)fetchRecordsFromTable:(NSString *)tableName AttributeName:(NSString *)attribute AndValue:(id)value InContext:(NSManagedObjectContext *)context;

  7. fetch records with a value for an attribute, and sorted by certain attribute

     + (NSMutableArray *)fetchRecordsFromTable:(NSString *)tableName AttributeName:(NSString *)attribute AndValue:(id)value sortedByAttribute:(NSString *)attributeName IsAscending:(BOOL)ascending InContext:(NSManagedObjectContext *)context;

  8. fetch the unique record with the given predicate

     + (id)fetchFirstRecordFromTable:(NSString *)tableName withPredicate:(NSPredicate *)predicate InContext:(NSManagedObjectContext *)context;

  9. fetch the first record with the given predicate, and sorted by certain attribute

     + (id)fetchFirstRecordFromTable:(NSString *)tableName withPredicate:(NSPredicate *)predicate sortedByAttribute:(NSString *)attributeName IsAscending:(BOOL)ascending InContext:(NSManagedObjectContext *)context;

More Features

Obviously this is a very very simple core-data handler, for complicated operations you can look into MagicalRecord. More Features will be updated as required in future.

**Thank You ! **