X-Git-Url: https://git.auder.net/?a=blobdiff_plain;f=entities%2Fassessment.js;h=3dc19529666f820b81742416d02c4f0345c28ff2;hb=29c8b391bcdf6ffca53545178e2ad194287a1bdc;hp=2104193a309f92484ffceefbf61830904aec53f8;hpb=e99c53fb3be56eb4c685dd061eef0e5b5bf22b73;p=qomet.git

diff --git a/entities/assessment.js b/entities/assessment.js
index 2104193..3dc1952 100644
--- a/entities/assessment.js
+++ b/entities/assessment.js
@@ -27,6 +27,8 @@ const AssessmentEntity =
 	 *     number: student number
 	 *     inputs: array of indexed arrays of integers (or html text if not quiz)
 	 *     startTime, endTime
+	 *     discoTime, totalDisco: last disconnect timestamp (if relevant) + total
+	 *     discoCount: total disconnections
 	 *     password: random string identifying student for exam session TEMPORARY
 	 */
 
@@ -106,9 +108,27 @@ const AssessmentEntity =
 		);
 	},
 
+	getPaperByNumber: function(aid, number, callback)
+	{
+		db.assessments.findOne(
+			{
+				_id: aid,
+				"papers.number": number,
+			},
+			(err,a) => {
+				if (!!err || !a)
+					return callback(err,a);
+				for (let p of a.papers)
+				{
+					if (p.number == number)
+						return callback(null,p); //reached for sure
+				}
+			}
+		);
+	},
+
 	startSession: function(aid, number, password, callback)
 	{
-		// TODO: security, do not re-do tasks if already done
 		db.assessments.update(
 			{ _id: aid },
 			{ $push: { papers: {
@@ -116,6 +136,8 @@ const AssessmentEntity =
 				startTime: Date.now(),
 				endTime: undefined,
 				password: password,
+				totalDisco: 0,
+				discoCount: 0,
 				inputs: [ ], //TODO: this is stage 1, stack indexed answers.
 				// then build JSON tree for easier access / correct
 			}}},
@@ -123,6 +145,70 @@ const AssessmentEntity =
 		);
 	},
 
+	// NOTE: no callbacks for 2 next functions, failures are not so important
+	// (because monitored: teachers can see what's going on)
+
+	addDisco: function(aid, number, deltaTime)
+	{
+		db.assessments.update(
+			{
+				_id: aid,
+				"papers.number": number,
+			},
+			{ $inc: {
+				"papers.$.discoCount": 1,
+				"papers.$.totalDisco": deltaTime,
+			} },
+			{ $set: { "papers.$.discoTime": null } }
+		);
+	},
+
+	setDiscoTime: function(aid, number)
+	{
+		db.assessments.update(
+			{
+				_id: aid,
+				"papers.number": number,
+			},
+			{ $set: { "papers.$.discoTime": Date.now() } }
+		);
+	},
+
+	getDiscoTime: function(aid, number, cb)
+	{
+		db.assessments.findOne(
+			{ _id: aid },
+			(err,a) => {
+				if (!!err)
+					return cb(err, null);
+				const idx = a.papers.findIndex( item => { return item.number == number; });
+				cb(null, a.papers[idx].discoTime);
+			}
+		);
+	},
+
+	hasInput: function(aid, number, password, idx, cb)
+	{
+		db.assessments.findOne(
+			{
+				_id: aid,
+				"papers.number": number,
+				"papers.password": password,
+			},
+			(err,a) => {
+				if (!!err || !a)
+					return cb(err,a);
+				let papIdx = a.papers.findIndex( item => { return item.number == number; });
+				for (let i of a.papers[papIdx].inputs)
+				{
+					if (i.index == idx)
+						return cb(null,true);
+				}
+				cb(null,false);
+			}
+		);
+	},
+
 	// https://stackoverflow.com/questions/27874469/mongodb-push-in-nested-array
 	setInput: function(aid, number, password, input, callback) //input: index + arrayOfInt (or txt)
 	{