Commit | Line | Data |
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8d7e2786 BA |
1 | var db = require("../utils/database"); |
2 | ||
3 | /* | |
4 | * Structure: | |
c018b304 | 5 | * id: problem number (int) |
8d7e2786 BA |
6 | * uid: user id (int) |
7 | * vid: variant id (int) | |
8 | * added: timestamp | |
9 | * instructions: text | |
10 | * solution: text | |
11 | */ | |
12 | ||
936dc463 | 13 | // TODO: callback ? |
582df349 | 14 | exports.create = function(vid, fen, instructions, solution) |
8d7e2786 BA |
15 | { |
16 | db.serialize(function() { | |
936dc463 | 17 | const query = |
582df349 BA |
18 | "INSERT INTO Problems (added, vid, fen, instructions, solution) VALUES " + |
19 | "(" + | |
20 | Date.now() + "," + | |
21 | vid + "," + | |
22 | fen + "," + | |
23 | instructions + "," + | |
24 | solution + | |
25 | ")"; | |
26 | db.run(query); | |
8d7e2786 BA |
27 | }); |
28 | } | |
29 | ||
582df349 | 30 | exports.getOne = function(id, callback) |
8d7e2786 BA |
31 | { |
32 | db.serialize(function() { | |
936dc463 BA |
33 | const query = |
34 | "SELECT * " + | |
35 | "FROM Problems " + | |
582df349 | 36 | "WHERE id = " + id; |
936dc463 BA |
37 | db.get(query, callback); |
38 | }); | |
39 | } | |
40 | ||
582df349 | 41 | exports.fetchN = function(vid, uid, type, directionStr, lastDt, MaxNbProblems, callback) |
936dc463 BA |
42 | { |
43 | db.serialize(function() { | |
44 | let typeLine = ""; | |
45 | if (uid > 0) | |
46 | typeLine = "AND id " + (type=="others" ? "!=" : "=") + " " + uid; | |
47 | const query = | |
8d7e2786 | 48 | "SELECT * FROM Problems " + |
582df349 | 49 | "WHERE vid = " + vid + |
936dc463 | 50 | " AND added " + directionStr + " " + lastDt + " " + typeLine + " " + |
8d7e2786 | 51 | "ORDER BY added " + (directionStr=="<" ? "DESC " : "") + |
fd08ab2c | 52 | "LIMIT " + MaxNbProblems; |
936dc463 | 53 | db.all(query, callback); |
8d7e2786 BA |
54 | }); |
55 | } | |
56 | ||
57 | exports.update = function(id, uid, fen, instructions, solution) | |
58 | { | |
59 | db.serialize(function() { | |
936dc463 | 60 | const query = |
8d7e2786 BA |
61 | "UPDATE Problems " + |
62 | "fen = " + fen + ", " + | |
63 | "instructions = " + instructions + ", " + | |
64 | "solution = " + solution + " " + | |
936dc463 BA |
65 | "WHERE id = " + id + " AND uid = " + uid; |
66 | db.run(query); | |
8d7e2786 BA |
67 | }); |
68 | } | |
69 | ||
70 | exports.remove = function(id, uid) | |
71 | { | |
72 | db.serialize(function() { | |
936dc463 | 73 | const query = |
8d7e2786 | 74 | "DELETE FROM Problems " + |
936dc463 BA |
75 | "WHERE id = " + id + " AND uid = " + uid; |
76 | db.run(query); | |
8d7e2786 BA |
77 | }); |
78 | } |