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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 | |
29c8b391 BA |
30 | * discoTime, totalDisco: last disconnect timestamp (if relevant) + total |
31 | * discoCount: total disconnections | |
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32 | * password: random string identifying student for exam session TEMPORARY |
33 | */ | |
34 | ||
35 | getById: function(aid, callback) | |
36 | { | |
37 | db.assessments.findOne( | |
38 | { _id: aid }, | |
39 | callback | |
40 | ); | |
41 | }, | |
42 | ||
43 | getByPath: function(cid, name, callback) | |
44 | { | |
45 | db.assessments.findOne( | |
46 | { | |
47 | cid: cid, | |
48 | name: name, | |
49 | }, | |
50 | callback | |
51 | ); | |
52 | }, | |
53 | ||
54 | insert: function(cid, name, callback) | |
55 | { | |
56 | db.assessments.insert( | |
57 | { | |
58 | name: name, | |
59 | cid: cid, | |
60 | active: false, | |
61 | mode: "exam", | |
62 | fixed: false, | |
63 | display: "one", | |
64 | time: 0, | |
65 | introduction: "", | |
66 | conclusion: "", | |
67 | coefficient: 1, | |
68 | questions: [ ], | |
69 | papers: [ ], | |
70 | }, | |
71 | callback | |
72 | ); | |
73 | }, | |
74 | ||
75 | getByCourse: function(cid, callback) | |
76 | { | |
77 | db.assessments.find( | |
78 | { cid: cid }, | |
79 | callback | |
80 | ); | |
81 | }, | |
82 | ||
83 | // arg: full assessment without _id field | |
84 | replace: function(aid, assessment, cb) | |
85 | { | |
86 | // Should be: (but unsupported by mongojs) | |
87 | // db.assessments.replaceOne( | |
88 | // { _id: aid }, | |
89 | // assessment, | |
90 | // cb | |
91 | // ); | |
92 | // Temporary workaround: | |
93 | db.assessments.update( | |
94 | { _id: aid }, | |
95 | { $set: assessment }, | |
96 | cb | |
97 | ); | |
98 | }, | |
99 | ||
100 | getQuestions: function(aid, callback) | |
101 | { | |
102 | db.assessments.findOne( | |
103 | { _id: aid }, | |
104 | { questions: 1}, | |
105 | (err,res) => { | |
106 | callback(err, !!res ? res.questions : null); | |
107 | } | |
108 | ); | |
109 | }, | |
110 | ||
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111 | getPaperByNumber: function(aid, number, callback) |
112 | { | |
113 | db.assessments.findOne( | |
114 | { | |
115 | _id: aid, | |
116 | "papers.number": number, | |
117 | }, | |
118 | (err,a) => { | |
119 | if (!!err || !a) | |
120 | return callback(err,a); | |
121 | for (let p of a.papers) | |
122 | { | |
123 | if (p.number == number) | |
124 | return callback(null,p); //reached for sure | |
125 | } | |
126 | } | |
127 | ); | |
128 | }, | |
129 | ||
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130 | startSession: function(aid, number, password, callback) |
131 | { | |
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132 | db.assessments.update( |
133 | { _id: aid }, | |
134 | { $push: { papers: { | |
135 | number: number, | |
136 | startTime: Date.now(), | |
137 | endTime: undefined, | |
138 | password: password, | |
29c8b391 BA |
139 | totalDisco: 0, |
140 | discoCount: 0, | |
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141 | inputs: [ ], //TODO: this is stage 1, stack indexed answers. |
142 | // then build JSON tree for easier access / correct | |
143 | }}}, | |
144 | callback | |
145 | ); | |
146 | }, | |
147 | ||
29c8b391 BA |
148 | // NOTE: no callbacks for 2 next functions, failures are not so important |
149 | // (because monitored: teachers can see what's going on) | |
150 | ||
151 | addDisco: function(aid, number, deltaTime) | |
152 | { | |
153 | db.assessments.update( | |
154 | { | |
155 | _id: aid, | |
156 | "papers.number": number, | |
157 | }, | |
158 | { $inc: { | |
159 | "papers.$.discoCount": 1, | |
160 | "papers.$.totalDisco": deltaTime, | |
161 | } }, | |
162 | { $set: { "papers.$.discoTime": null } } | |
163 | ); | |
164 | }, | |
165 | ||
166 | setDiscoTime: function(aid, number) | |
167 | { | |
168 | db.assessments.update( | |
169 | { | |
170 | _id: aid, | |
171 | "papers.number": number, | |
172 | }, | |
173 | { $set: { "papers.$.discoTime": Date.now() } } | |
174 | ); | |
175 | }, | |
176 | ||
177 | getDiscoTime: function(aid, number, cb) | |
178 | { | |
179 | db.assessments.findOne( | |
180 | { _id: aid }, | |
181 | (err,a) => { | |
182 | if (!!err) | |
183 | return cb(err, null); | |
184 | const idx = a.papers.findIndex( item => { return item.number == number; }); | |
185 | cb(null, a.papers[idx].discoTime); | |
186 | } | |
187 | ); | |
188 | }, | |
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189 | |
190 | hasInput: function(aid, number, password, idx, cb) | |
191 | { | |
192 | db.assessments.findOne( | |
193 | { | |
194 | _id: aid, | |
195 | "papers.number": number, | |
196 | "papers.password": password, | |
197 | }, | |
198 | (err,a) => { | |
199 | if (!!err || !a) | |
200 | return cb(err,a); | |
2c545c26 BA |
201 | let papIdx = a.papers.findIndex( item => { return item.number == number; }); |
202 | for (let i of a.papers[papIdx].inputs) | |
f03a2ad9 | 203 | { |
2c545c26 BA |
204 | if (i.index == idx) |
205 | return cb(null,true); | |
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206 | } |
207 | cb(null,false); | |
208 | } | |
209 | ); | |
210 | }, | |
211 | ||
e99c53fb BA |
212 | // https://stackoverflow.com/questions/27874469/mongodb-push-in-nested-array |
213 | setInput: function(aid, number, password, input, callback) //input: index + arrayOfInt (or txt) | |
214 | { | |
215 | db.assessments.update( | |
216 | { | |
217 | _id: aid, | |
218 | "papers.number": number, | |
219 | "papers.password": password, | |
220 | }, | |
221 | { $push: { "papers.$.inputs": input } }, | |
222 | callback | |
223 | ); | |
224 | }, | |
225 | ||
226 | endAssessment: function(aid, number, password, callback) | |
227 | { | |
228 | db.assessments.update( | |
229 | { | |
230 | _id: aid, | |
231 | "papers.number": number, | |
232 | "papers.password": password, | |
233 | }, | |
234 | { $set: { | |
235 | "papers.$.endTime": Date.now(), | |
236 | "papers.$.password": "", | |
237 | } }, | |
238 | callback | |
239 | ); | |
240 | }, | |
241 | ||
242 | getConclusion: function(aid, callback) | |
243 | { | |
244 | db.assessments.findOne( | |
245 | { _id: aid }, | |
246 | { conclusion: 1}, | |
247 | (err,res) => { | |
248 | callback(err, !!res ? res.conclusion : null); | |
249 | } | |
250 | ); | |
251 | }, | |
252 | ||
253 | remove: function(aid, cb) | |
254 | { | |
255 | db.assessments.remove( | |
256 | { _id: aid }, | |
257 | cb | |
258 | ); | |
259 | }, | |
260 | ||
261 | removeGroup: function(cid, cb) | |
262 | { | |
263 | db.assessments.remove( | |
264 | { cid: cid }, | |
265 | cb | |
266 | ); | |
267 | }, | |
268 | } | |
269 | ||
270 | module.exports = AssessmentEntity; |