Geek Answers Handbook

How to combine two SwiftyJSON objects

I have a swiftyJSON object that looks like this:

[{ "location" : "http://...", "img" : "http://...", "commentCount" : 0, "timestamp" : 1432460217550, }]

I want to add another swiftyJSON object to it so that it looks like this:

 [{ "location" : "http://...", "img" : "http://...", "commentCount" : 0, "timestamp" : 1432460217550, }, { "location" : "http://...", "img" : "http://...", "commentCount" : 1, "timestamp" : 1432460217571, } ]

I cannot use += or .append for swiftyJSON objects. How can i do this?

+5
source share
4 answers

Victor's answer did not help me. But I solved the issue by putting my JSON object, data , in an array like this:

 var data: [JSON] = []

and using the following code:

 self.data = self.data + JSON["content"].arrayValue
0
source

As you said, swiftyJSON has no add function.

What you can do is parse swiftyJSON objects into an array of type anyObject and add them.

 let json = JSON(data: data!) var JSONObject = JSON(json["content"].arrayObject! + json["content"].arrayObject!)

Data -> An NSData object obtained from an HTTP request.

+8
source 
 extension JSON { mutating func merge(other: JSON) { for (key, subJson) in other { self[key] = subJson } } func merged(other: JSON) -> JSON { var merged = self merged.merge(other: other) return merged } }
+4
source

I liked @ user2215977's answer, but I also needed a merge of nested JSON. I expanded the extension to combine nested JSON and arrays, while arrays containing JSON are not merged, but both are in the array of the newly created JSON.

import SwiftyJSON

 extension JSON { mutating func merge(other: JSON) { if self.type == other.type { switch self.type { case .dictionary: for (key, _) in other { self[key].merge(other: other[key]) } case .array: self = JSON(self.arrayValue + other.arrayValue) default: self = other } } else { self = other } } func merged(other: JSON) -> JSON { var merged = self merged.merge(other: other) return merged } }

To illustrate usage, I will also post my tests for this extension.

 import XCTest import SwiftyJSON class JSONTests: XCTestCase { func testPrimitiveType() { let A = JSON("a") let B = JSON("b") XCTAssertEqual(A.merged(other: B), B) } func testMergeEqual() { let json = JSON(["a": "A"]) XCTAssertEqual(json.merged(other: json), json) } func testMergeUnequalValues() { let A = JSON(["a": "A"]) let B = JSON(["a": "B"]) XCTAssertEqual(A.merged(other: B), B) } func testMergeUnequalKeysAndValues() { let A = JSON(["a": "A"]) let B = JSON(["b": "B"]) XCTAssertEqual(A.merged(other: B), JSON(["a": "A", "b": "B"])) } func testMergeFilledAndEmpty() { let A = JSON(["a": "A"]) let B = JSON([:]) XCTAssertEqual(A.merged(other: B), A) } func testMergeEmptyAndFilled() { let A = JSON([:]) let B = JSON(["a": "A"]) XCTAssertEqual(A.merged(other: B), B) } func testMergeArray() { let A = JSON(["a"]) let B = JSON(["b"]) XCTAssertEqual(A.merged(other: B), JSON(["a", "b"])) } func testMergeNestedJSONs() { let A = JSON([ "nested": [ "A": "a" ] ]) let B = JSON([ "nested": [ "A": "b" ] ]) XCTAssertEqual(A.merged(other: B), B) } }
+2
source

More articles:


All Articles