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e99c53fb BA |
1 | const db = require("../utils/database"); |
2 | ||
3 | const AssessmentEntity = | |
4 | { | |
5 | /* | |
6 | * Structure: | |
7 | * _id: BSON id | |
8 | * cid: course ID | |
9 | * name: varchar | |
10 | * active: boolean true/false | |
11 | * mode: secure | exam | open (decreasing security) | |
12 | * fixed: bool (questions in fixed order; default: false) | |
13 | * display: "one" or "all" (generally "all" for open questions, but...) | |
14 | * time: 0, //<=0 means "untimed"; otherwise, time in seconds | |
15 | * introduction: "", | |
16 | * conclusion: "https://www.youtube.com/watch?v=6-9AjToJYuw", | |
17 | * coefficient: number, default 1 | |
18 | * questions: array of | |
19 | * index: for paper test, like 2.1.a (?!); and quiz: 0, 1, 2, 3... | |
20 | * wording: varchar (HTML) | |
21 | * options: array of varchar --> if present, question type == quiz! | |
22 | * fixed: bool, options in fixed order (default: false) | |
23 | * answer: array of integers (for quiz) or html text (for paper); striped in exam mode | |
24 | * active: boolean, is question in current assessment? --> striped if inactive! | |
25 | * points: points for this question (default 1) | |
26 | * papers : array of | |
27 | * number: student number | |
28 | * inputs: array of indexed arrays of integers (or html text if not quiz) | |
29 | * startTime, endTime | |
30 | * password: random string identifying student for exam session TEMPORARY | |
31 | */ | |
32 | ||
33 | getById: function(aid, callback) | |
34 | { | |
35 | db.assessments.findOne( | |
36 | { _id: aid }, | |
37 | callback | |
38 | ); | |
39 | }, | |
40 | ||
41 | getByPath: function(cid, name, callback) | |
42 | { | |
43 | db.assessments.findOne( | |
44 | { | |
45 | cid: cid, | |
46 | name: name, | |
47 | }, | |
48 | callback | |
49 | ); | |
50 | }, | |
51 | ||
52 | insert: function(cid, name, callback) | |
53 | { | |
54 | db.assessments.insert( | |
55 | { | |
56 | name: name, | |
57 | cid: cid, | |
58 | active: false, | |
59 | mode: "exam", | |
60 | fixed: false, | |
61 | display: "one", | |
62 | time: 0, | |
63 | introduction: "", | |
64 | conclusion: "", | |
65 | coefficient: 1, | |
66 | questions: [ ], | |
67 | papers: [ ], | |
68 | }, | |
69 | callback | |
70 | ); | |
71 | }, | |
72 | ||
73 | getByCourse: function(cid, callback) | |
74 | { | |
75 | db.assessments.find( | |
76 | { cid: cid }, | |
77 | callback | |
78 | ); | |
79 | }, | |
80 | ||
81 | // arg: full assessment without _id field | |
82 | replace: function(aid, assessment, cb) | |
83 | { | |
84 | // Should be: (but unsupported by mongojs) | |
85 | // db.assessments.replaceOne( | |
86 | // { _id: aid }, | |
87 | // assessment, | |
88 | // cb | |
89 | // ); | |
90 | // Temporary workaround: | |
91 | db.assessments.update( | |
92 | { _id: aid }, | |
93 | { $set: assessment }, | |
94 | cb | |
95 | ); | |
96 | }, | |
97 | ||
98 | getQuestions: function(aid, callback) | |
99 | { | |
100 | db.assessments.findOne( | |
101 | { _id: aid }, | |
102 | { questions: 1}, | |
103 | (err,res) => { | |
104 | callback(err, !!res ? res.questions : null); | |
105 | } | |
106 | ); | |
107 | }, | |
108 | ||
f03a2ad9 BA |
109 | getPaperByNumber: function(aid, number, callback) |
110 | { | |
111 | db.assessments.findOne( | |
112 | { | |
113 | _id: aid, | |
114 | "papers.number": number, | |
115 | }, | |
116 | (err,a) => { | |
117 | if (!!err || !a) | |
118 | return callback(err,a); | |
119 | for (let p of a.papers) | |
120 | { | |
121 | if (p.number == number) | |
122 | return callback(null,p); //reached for sure | |
123 | } | |
124 | } | |
125 | ); | |
126 | }, | |
127 | ||
e99c53fb BA |
128 | startSession: function(aid, number, password, callback) |
129 | { | |
e99c53fb BA |
130 | db.assessments.update( |
131 | { _id: aid }, | |
132 | { $push: { papers: { | |
133 | number: number, | |
134 | startTime: Date.now(), | |
135 | endTime: undefined, | |
136 | password: password, | |
137 | inputs: [ ], //TODO: this is stage 1, stack indexed answers. | |
138 | // then build JSON tree for easier access / correct | |
139 | }}}, | |
140 | callback | |
141 | ); | |
142 | }, | |
143 | ||
f03a2ad9 BA |
144 | |
145 | hasInput: function(aid, number, password, idx, cb) | |
146 | { | |
147 | db.assessments.findOne( | |
148 | { | |
149 | _id: aid, | |
150 | "papers.number": number, | |
151 | "papers.password": password, | |
152 | }, | |
153 | (err,a) => { | |
154 | if (!!err || !a) | |
155 | return cb(err,a); | |
2c545c26 BA |
156 | let papIdx = a.papers.findIndex( item => { return item.number == number; }); |
157 | for (let i of a.papers[papIdx].inputs) | |
f03a2ad9 | 158 | { |
2c545c26 BA |
159 | if (i.index == idx) |
160 | return cb(null,true); | |
f03a2ad9 BA |
161 | } |
162 | cb(null,false); | |
163 | } | |
164 | ); | |
165 | }, | |
166 | ||
e99c53fb BA |
167 | // https://stackoverflow.com/questions/27874469/mongodb-push-in-nested-array |
168 | setInput: function(aid, number, password, input, callback) //input: index + arrayOfInt (or txt) | |
169 | { | |
170 | db.assessments.update( | |
171 | { | |
172 | _id: aid, | |
173 | "papers.number": number, | |
174 | "papers.password": password, | |
175 | }, | |
176 | { $push: { "papers.$.inputs": input } }, | |
177 | callback | |
178 | ); | |
179 | }, | |
180 | ||
181 | endAssessment: function(aid, number, password, callback) | |
182 | { | |
183 | db.assessments.update( | |
184 | { | |
185 | _id: aid, | |
186 | "papers.number": number, | |
187 | "papers.password": password, | |
188 | }, | |
189 | { $set: { | |
190 | "papers.$.endTime": Date.now(), | |
191 | "papers.$.password": "", | |
192 | } }, | |
193 | callback | |
194 | ); | |
195 | }, | |
196 | ||
197 | getConclusion: function(aid, callback) | |
198 | { | |
199 | db.assessments.findOne( | |
200 | { _id: aid }, | |
201 | { conclusion: 1}, | |
202 | (err,res) => { | |
203 | callback(err, !!res ? res.conclusion : null); | |
204 | } | |
205 | ); | |
206 | }, | |
207 | ||
208 | remove: function(aid, cb) | |
209 | { | |
210 | db.assessments.remove( | |
211 | { _id: aid }, | |
212 | cb | |
213 | ); | |
214 | }, | |
215 | ||
216 | removeGroup: function(cid, cb) | |
217 | { | |
218 | db.assessments.remove( | |
219 | { cid: cid }, | |
220 | cb | |
221 | ); | |
222 | }, | |
223 | } | |
224 | ||
225 | module.exports = AssessmentEntity; |