Merge branch 'feat/forwardToSlaves'

Author: Clément Le Provost

Source/Index.swift

@@ -296,7 +296,22 @@ import Foundation
         let path = "1/indexes/\(urlEncodedIndexName)/settings"
         return client.performHTTPQuery(path, method: .PUT, body: settings, hostnames: client.writeHosts, completionHandler: completionHandler)
     }
-    
+
+    /// Set this index's settings, optionally forwarding the change to slave indices.
+    ///
+    /// Please refer to our [API documentation](https://www.algolia.com/doc/swift#index-settings) for the list of
+    /// supported settings.
+    ///
+    /// - parameter settings: New settings.
+    /// - parameter forwardToSlaves: When true, the change is also applied to slaves of this index.
+    /// - parameter completionHandler: Completion handler to be notified of the request's outcome.
+    /// - returns: A cancellable operation.
+    ///
+    @objc public func setSettings(settings: [String: AnyObject], forwardToSlaves: Bool, completionHandler: CompletionHandler? = nil) -> NSOperation {
+        let path = "1/indexes/\(urlEncodedIndexName)/settings?forwardToSlaves=\(forwardToSlaves)"
+        return client.performHTTPQuery(path, method: .PUT, body: settings, hostnames: client.writeHosts, completionHandler: completionHandler)
+    }
+
     /// Delete the index content without removing settings and index specific API keys.
     ///
     /// - parameter completionHandler: Completion handler to be notified of the request's outcome.

Tests/IndexTests.swift

@@ -581,7 +581,39 @@ class IndexTests: XCTestCase {
 
         waitForExpectationsWithTimeout(expectationTimeout, handler: nil)
     }
-    
+
+    func testSettings_forwardToSlaves() {
+        let expectation = expectationWithDescription("testSettings")
+        let settings = ["attributesToRetrieve": ["name"]]
+        
+        index.setSettings(settings, forwardToSlaves: true, completionHandler: { (content, error) -> Void in
+            if let error = error {
+                XCTFail("Error during setSettings: \(error)")
+                expectation.fulfill()
+            } else {
+                self.index.waitTask(content!["taskID"] as! Int, completionHandler: { (content, error) -> Void in
+                    if let error = error {
+                        XCTFail("Error during waitTask: \(error)")
+                        expectation.fulfill()
+                    } else {
+                        self.index.getSettings({ (content, error) -> Void in
+                            if let error = error {
+                                XCTFail("Error during getSettings: \(error)")
+                            } else {
+                                let attributesToRetrieve = content!["attributesToRetrieve"] as! [String]
+                                XCTAssertEqual(attributesToRetrieve, settings["attributesToRetrieve"]!, "Set settings failed")
+                            }
+                            
+                            expectation.fulfill()
+                        })
+                    }
+                })
+            }
+        })
+        
+        waitForExpectationsWithTimeout(expectationTimeout, handler: nil)
+    }
+
     func testBrowse() {
         let expectation = expectationWithDescription("testBrowseWithQuery")
         var objects: [[String: AnyObject]] = []