Support partially correct quizzes (#764)

* Persist submission score

* Handle quiz partially correct state

* Handle in discussions

* Handle in submissions

* Handle in write comment

* Handle in solution

* Clean up

Author: ivan-magda

Stepic.xcodeproj/project.pbxproj

@@ -1776,6 +1776,7 @@
 		2C0B42BF234CD17C00B03EA1 /* CustomMenuBlockTableViewCell.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CustomMenuBlockTableViewCell.swift; sourceTree = "<group>"; };
 		2C0B42C0234CD17C00B03EA1 /* CustomMenuBlockTableViewCell.xib */ = {isa = PBXFileReference; lastKnownFileType = file.xib; path = CustomMenuBlockTableViewCell.xib; sourceTree = "<group>"; };
 		2C0C68FB247DBA6200B950F6 /* IAPReceiptValidationService.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = IAPReceiptValidationService.swift; sourceTree = "<group>"; };
+		2C0FBEB224E25A4D002CA67F /* Model_quiz_is_partially_correct_v61.xcdatamodel */ = {isa = PBXFileReference; lastKnownFileType = wrapper.xcdatamodel; path = Model_quiz_is_partially_correct_v61.xcdatamodel; sourceTree = "<group>"; };
 		2C101009239E7A1E00440651 /* Model_discount_policy.xcdatamodel */ = {isa = PBXFileReference; lastKnownFileType = wrapper.xcdatamodel; path = Model_discount_policy.xcdatamodel; sourceTree = "<group>"; };
 		2C10100A239EFAD700440651 /* DiscountingPolicy.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DiscountingPolicy.swift; sourceTree = "<group>"; };
 		2C104B672069064D0026FEB9 /* autocomplete_suggestions.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = autocomplete_suggestions.plist; sourceTree = "<group>"; };
@@ -9881,6 +9882,7 @@
 		08D1EF6E1BB5618700BE84E6 /* Model.xcdatamodeld */ = {
 			isa = XCVersionGroup;
 			children = (
+				2C0FBEB224E25A4D002CA67F /* Model_quiz_is_partially_correct_v61.xcdatamodel */,
 				2C78573B24DE1EC40042AD2C /* Model_is_vote_notifications_enabled_v60.xcdatamodel */,
 				2C619A7824CFF9DC007D3529 /* Model_social_profiles_v59.xcdatamodel */,
 				2C46417A24CFD23400FB6696 /* Model_lessons_demo_access_v58.xcdatamodel */,
@@ -9943,7 +9945,7 @@
 				0802AC531C7222B200C4F3E6 /* Model_v2.xcdatamodel */,
 				08D1EF6F1BB5618700BE84E6 /* Model.xcdatamodel */,
 			);
-			currentVersion = 2C78573B24DE1EC40042AD2C /* Model_is_vote_notifications_enabled_v60.xcdatamodel */;
+			currentVersion = 2C0FBEB224E25A4D002CA67F /* Model_quiz_is_partially_correct_v61.xcdatamodel */;
 			path = Model.xcdatamodeld;
 			sourceTree = "<group>";
 			versionGroupType = wrapper.xcdatamodel;

Stepic/Legacy/Model/AttemptsSumbissions/Submission.swift

@@ -14,6 +14,7 @@ final class Submission: JSONSerializable {
 
     var id: IdType = 0
     var statusString: String?
+    var score: Float = 0
     var hint: String?
     var feedback: SubmissionFeedback?
     var time = Date()
@@ -36,6 +37,8 @@ final class Submission: JSONSerializable {
 
     var isCorrect: Bool { self.status == .correct }
 
+    var isPartiallyCorrect: Bool { self.isCorrect && self.score < 1.0 }
+
     var json: JSON {
         [
             JSONKey.attempt.rawValue: attemptID,
@@ -46,6 +49,7 @@ final class Submission: JSONSerializable {
     init(
         id: IdType,
         status: SubmissionStatus? = nil,
+        score: Float? = 0,
         hint: String? = nil,
         feedback: SubmissionFeedback? = nil,
         time: Date = Date(),
@@ -56,6 +60,7 @@ final class Submission: JSONSerializable {
     ) {
         self.id = id
         self.statusString = status?.rawValue
+        self.score = score ?? 0
         self.hint = hint
         self.feedback = feedback
         self.time = time
@@ -85,6 +90,7 @@ final class Submission: JSONSerializable {
         self.init(
             id: submission?.id ?? 0,
             status: submission?.status,
+            score: submission?.score,
             hint: submission?.hint,
             feedback: submission?.feedback,
             time: submission?.time ?? Date(),
@@ -97,6 +103,7 @@ final class Submission: JSONSerializable {
     func update(json: JSON) {
         self.id = json[JSONKey.id.rawValue].intValue
         self.statusString = json[JSONKey.status.rawValue].string
+        self.score = json[JSONKey.score.rawValue].floatValue
         self.hint = json[JSONKey.hint.rawValue].string
         self.feedback = self.getFeedbackFromJSON(json[JSONKey.feedback.rawValue])
         self.attemptID = json[JSONKey.attempt.rawValue].intValue
@@ -151,6 +158,7 @@ final class Submission: JSONSerializable {
     enum JSONKey: String {
         case id
         case status
+        case score
         case hint
         case attempt
         case reply
@@ -169,6 +177,7 @@ extension Submission: CustomDebugStringConvertible {
         """
         Submission(id: \(id), \
         status: \(statusString ?? "nil"), \
+        score: \(score), \
         hint: \(hint ?? "nil"), \
         feedback: \(feedback ??? "nil"), \
         reply: \(reply ??? "nil"), \

Stepic/Legacy/Model/Entities/Submission/SubmissionEntity+CoreDataProperties.swift

@@ -6,6 +6,7 @@ extension SubmissionEntity {
     @NSManaged var managedAttemptID: NSNumber
     @NSManaged var managedReply: Reply?
     @NSManaged var managedLocal: NSNumber
+    @NSManaged var managedScore: NSNumber
 
     @NSManaged var managedHint: String?
     @NSManaged var managedStatus: String?

Stepic/Legacy/Model/Entities/Submission/SubmissionEntity.swift

@@ -44,6 +44,15 @@ final class SubmissionEntity: NSManagedObject {
         }
     }
 
+    var score: Float {
+        get {
+            self.managedScore.floatValue
+        }
+        set {
+            self.managedScore = NSNumber(value: newValue)
+        }
+    }
+
     var hint: String? {
         get {
             self.managedHint
@@ -111,6 +120,7 @@ extension SubmissionEntity {
         Submission(
             id: self.id,
             status: self.status,
+            score: self.score,
             hint: self.hint,
             feedback: self.feedback,
             time: self.time,
@@ -134,6 +144,7 @@ extension SubmissionEntity {
         self.attemptID = submission.attemptID
         self.reply = submission.reply
         self.isLocal = submission.isLocal
+        self.score = submission.score
         self.hint = submission.hint
         self.statusString = submission.statusString
         self.feedback = submission.feedback

Stepic/Legacy/Model/Model.xcdatamodeld/.xccurrentversion

@@ -3,6 +3,6 @@
 <plist version="1.0">
 <dict>
 	<key>_XCCurrentVersionName</key>
-	<string>Model_is_vote_notifications_enabled_v60.xcdatamodel</string>
+	<string>Model_quiz_is_partially_correct_v61.xcdatamodel</string>
 </dict>
 </plist>