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 ! **