Drop problems from server + draft DB cleaning functions

[vchess.git] / server / models / Problem.js

diff --git a/server/models/Problem.js b/server/models/Problem.js
deleted file mode 100644 (file)
index a1f9903..0000000
--- a/server/models/Problem.js
+++ /dev/null
@@ -1,81 +0,0 @@
-var db = require("../utils/database");
-
-/*
- * Structure:
- *   id: problem number (int)
- *   uid: user id (int)
- *   vid: variant id (int)
- *   added: timestamp
- *   instructions: text
- *   solution: text
- */
-
-const ProblemModel =
-{
-       create: function(uid, vid, fen, instructions, solution, cb)
-       {
-               db.serialize(function() {
-                       const insertQuery =
-                               "INSERT INTO Problems (added, uid, vid, fen, instructions, solution) " +
-                               "VALUES (" + Date.now() + "," + uid + "," + vid + ",'" + fen + "',?,?)";
-                       db.run(insertQuery, [instructions, solution], err => {
-                               if (!!err)
-                                       return cb(err);
-                               db.get("SELECT last_insert_rowid() AS rowid", cb);
-                       });
-               });
-       },
-
-       getOne: function(id, callback)
-       {
-               db.serialize(function() {
-                       const query =
-                               "SELECT * " +
-                               "FROM Problems " +
-                               "WHERE id = " + id;
-                       db.get(query, callback);
-               });
-       },
-
-       fetchN: function(vid, uid, type, directionStr, lastDt, MaxNbProblems, callback)
-       {
-               db.serialize(function() {
-                       let typeLine = "";
-                       if (uid > 0)
-                               typeLine = "AND uid " + (type=="others" ? "!=" : "=") + " " + uid;
-                       const query =
-                               "SELECT * FROM Problems " +
-                               "WHERE vid = " + vid +
-                               "  AND added " + directionStr + " " + lastDt + " " + typeLine + " " +
-                               "ORDER BY added " + (directionStr=="<" ? "DESC " : "") +
-                               "LIMIT " + MaxNbProblems;
-                       db.all(query, callback);
-               });
-       },
-
-       // TODO: update fails (but insert is OK)
-       update: function(id, uid, fen, instructions, solution, cb)
-       {
-               db.serialize(function() {
-                       const query =
-                               "UPDATE Problems SET " +
-                                       "fen = '" + fen + "', " +
-                                       "instructions = ?, " +
-                                       "solution = ? " +
-                               "WHERE id = " + id + " AND uid = " + uid;
-                       db.run(query, [instructions,solution], cb);
-               });
-       },
-
-       remove: function(id, uid)
-       {
-               db.serialize(function() {
-                       const query =
-                               "DELETE FROM Problems " +
-                               "WHERE id = " + id + " AND uid = " + uid;
-                       db.run(query);
-               });
-       },
-}
-
-module.exports = ProblemModel;