Objective-C

Sort JSON Object by Member Key Name

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Demonstrates how to sort the members of a JSON object by the key name. Objective-C

#import <CkoJsonObject.h>

CkoJsonObject *json = [[CkoJsonObject alloc] init];

[json UpdateString: @"xyz" value: @"1234"];
[json UpdateString: @"abc.xyz" value: @"1234"];
[json UpdateString: @"abc.def" value: @"1234"];
[json UpdateString: @"abc.aaa" value: @"1234"];
[json UpdateString: @"ghi" value: @"1234"];
[json UpdateString: @"nmo" value: @"1234"];

json.EmitCompact = NO;
NSLog(@"%@",[json Emit]);

//  This is our initial JSON:

//  {
//    "xyz": "1234",
//    "abc": {
//      "xyz": "1234",
//      "def": "1234",
//      "aaa": "1234"
//    },
//    "ghi": "1234",
//    "nmo": "1234"
//  }

//  Sort the top-level JSON object by key.
BOOL ascending = YES;
BOOL caseSensitive = YES;
[json Sort: ascending caseSensitive: caseSensitive];

//  Look at the sorted JSON..
NSLog(@"%@",[json Emit]);

//  {
//    "abc": {
//      "xyz": "1234",
//      "def": "1234",
//      "aaa": "1234"
//    },
//    "ghi": "1234",
//    "nmo": "1234",
//    "xyz": "1234"
//  }

//  Now sort the members of the "abc" object..
CkoJsonObject *jsonAbc = [[CkoJsonObject alloc] init];
[json ObjectOf2: @"abc" jsonObj: jsonAbc];

[jsonAbc Sort: ascending caseSensitive: caseSensitive];

//  Now look at the JSON with the members under "abc" also sorted..
NSLog(@"%@",[json Emit]);

//  {
//    "abc": {
//      "aaa": "1234",
//      "def": "1234",
//      "xyz": "1234"
//    },
//    "ghi": "1234",
//    "nmo": "1234",
//    "xyz": "1234"
//  }