Apply failWhenAnyNestedRequestErrors property to the collection reque…

…st (#20)

* Apply failWhenAnyNestedRequestErrors property to the collection request
* Update podspec

Halley.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'Halley'
-  s.version          = '1.8.0'
+  s.version          = '1.8.1'
   s.summary          = 'Lightweight JSON HAL parser and traverser.'
   s.description      = <<-DESC
   Halley provides a simple way on iOS to parse and traverse models according to JSON Hypertext Application Language specification also known just as HAL.

Halley/Core/Traverser/Traverser.swift

@@ -359,7 +359,7 @@ private extension Traverser {
                 )
             }
             .zip()
-            .map { $0.collect() }
+            .map { $0.collect(options: options) }
             .eraseToAnyPublisher()
     }
 
@@ -390,7 +390,7 @@ private extension Traverser {
 
         return requests
             .zip()
-            .map { $0.collect() }
+            .map { $0.collect(options: options) }
             .eraseToAnyPublisher()
     }
 }
@@ -576,7 +576,7 @@ private extension Traverser {
             }
             return singleResourceRequests
                 .zip()
-                .map { $0.map(\.result).collect() }
+                .map { $0.map(\.result).collect(options: options) }
                 .map { Relationship.Response(relationship: relOptions.relationship, result: $0) }
                 .eraseToAnyPublisher()
         case (.toOne, .array(let links)):

Halley/Core/Utils/Result+Transform.swift

@@ -18,12 +18,16 @@ extension JSONResult {
 
 extension Collection where Element == JSONResult {
 
-    /// Collects all responses and joins them as a single array. In case if any
-    /// of responses has error, it will return .failure
-    /// - Returns: `.success` if all responses are successful, `.failure` if any of responses have failed
-    func collect() -> JSONResult {
+    /// Collects all responses and joins them as a single array. Depending on the `options` property
+    /// `failWhenAnyNestedRequestErrors`, method will return a success or failure.
+    ///
+    /// - Returns: `.success` if all responses are successful, `.failure` if any response
+    /// has failed and the `failWhenAnyNestedRequestErrors` property is set to `true`
+    func collect(options: HalleyKit.Options) -> JSONResult {
         do {
-            let joined = try map { try $0.get() }
+            let joined = try compactMap {
+                options.failWhenAnyNestedRequestErrors ? try $0.get() : try? $0.get()
+            }
             return .success(joined)
         } catch let error {
             return .failure(error)