* solution: text
*/
+// TODO: callback ?
exports.create = function(vname, fen, instructions, solution)
{
db.serialize(function() {
- db.get("SELECT id FROM Variants WHERE name = '" + vname + "'", (err,variant) => {
- db.run(
+ const vidQuery =
+ "SELECT id " +
+ "FROM Variants " +
+ "WHERE name = '" + vname + "'";
+ db.get(vidQuery, (err,variant) => {
+ const insertQuery =
"INSERT INTO Problems (added, vid, fen, instructions, solution) VALUES " +
"(" +
Date.now() + "," +
fen + "," +
instructions + "," +
solution +
- ")");
+ ")";
+ db.run(insertQuery);
});
});
}
exports.getById = function(id, callback)
{
db.serialize(function() {
- db.get(
+ const query =
"SELECT * FROM Problems " +
- "WHERE id ='" + id + "'",
- callback);
+ "WHERE id ='" + id + "'";
+ db.get(query, callback);
});
}
-exports.fetchN = function(vname, directionStr, lastDt, MaxNbProblems, callback)
+exports.getOne = function(vname, pid, callback)
{
db.serialize(function() {
- db.all(
+ const query =
+ "SELECT * " +
+ "FROM Problems " +
+ "WHERE id = " + pid;
+ db.get(query, callback);
+ });
+}
+
+exports.fetchN = function(vname, uid, type, directionStr, lastDt, MaxNbProblems, callback)
+{
+ db.serialize(function() {
+ let typeLine = "";
+ if (uid > 0)
+ typeLine = "AND id " + (type=="others" ? "!=" : "=") + " " + uid;
+ const query =
"SELECT * FROM Problems " +
"WHERE vid = (SELECT id FROM Variants WHERE name = '" + vname + "') " +
- " AND added " + directionStr + " " + lastDt + " " +
+ " AND added " + directionStr + " " + lastDt + " " + typeLine + " " +
"ORDER BY added " + (directionStr=="<" ? "DESC " : "") +
"LIMIT " + MaxNbProblems,
- callback);
+ db.all(query, callback);
});
}
exports.update = function(id, uid, fen, instructions, solution)
{
db.serialize(function() {
- db.run(
+ const query =
"UPDATE Problems " +
"fen = " + fen + ", " +
"instructions = " + instructions + ", " +
"solution = " + solution + " " +
- "WHERE id = " + id + " AND uid = " + uid);
+ "WHERE id = " + id + " AND uid = " + uid;
+ db.run(query);
});
}
exports.remove = function(id, uid)
{
db.serialize(function() {
- db.run(
+ const query =
"DELETE FROM Problems " +
- "WHERE id = " + id + " AND uid = " + uid);
+ "WHERE id = " + id + " AND uid = " + uid;
+ db.run(query);
});
}
userId: user.id,
problems: [], //oldest first
myProblems: [], //same, but only mine
- display: "list", //or "myList"
- curIdx: -1, //index in (current) problems array
+ singletons: [], //requested problems (using #num)
+ display: "others", //or "mine"
+ curProb: null, //(reference to) current displayed problem (if any)
showSolution: false,
+ pbNum: 0, //to navigate directly to some problem
// New problem (to upload), or existing problem to edit:
modalProb: {
id: 0, //defined if it's an edit
<i class="material-icons">skip_next</i>
</button>
</div>
- <div id="mainBoard" v-show="curIdx>=0">
+ <div id="mainBoard" v-show="!!curProb">
<div id="instructions-div" class="section-content">
<p id="problem-instructions">
{{ curProb.instructions }}
{{ curProb.solution }}
</p>
</div>
+ <button @click="displayList()">
+ <span>Back to list display</span>
+ </button>
+ </div>
+ <div>
+ <input type="text" placeholder="Type problem number" v-model="pbNum"/>
+ <button @click="showProblem()">
+ <span>Show problem</span>
+ </button>
</div>
<button v-if="!!userId" @click="toggleListDisplay()">
<span>My problems (only)</span>
</button>
- <my-problem-summary v-show="curIdx<0"
- v-for="(p,idx) in sortedProblems" @click="setCurIdx(idx)"
+ <my-problem-summary v-show="!curProb"
+ v-on:edit-problem="editProblem(p)" v-on:delete-problem="deleteProblem(p.id)"
+ v-for="p in curProblems" @click="curProb=p"
v-bind:prob="p" v-bind:userid="userId" v-bind:key="p.id">
</my-problem-summary>
<input type="checkbox" id="modal-newproblem" class="modal"/>
</div>
</div>
</div>
+ <input id="modalNomore" type="checkbox" class="modal"/>
+ <div role="dialog" aria-labelledby="nomoreMessage">
+ <div class="card smallpad small-modal text-center">
+ <label for="modalNomore" class="modal-close"></label>
+ <h3 id="nomoreMessage" class="section">
+ {{ nomoreMessage }}
+ </h3>
+ </div>
+ </div>
</div>
`,
- computed: {
- sortedProblems: function() {
- // Newest problem first
- return this.curProblems.sort((a,b) => a.added - b.added);
- },
- curProb: function() {
- switch (this.display)
- {
- case "list":
- return this.problems[this.curIdx];
- case "myList":
- return this.myProblems[this.curIdx];
- }
- },
- },
created: function() {
if (location.hash.length > 0)
- {
- this.getOneProblem(location.hash.slice(1)); //callback?
- this.curIdx = 0; //TODO: a bit more subtle, depending if it's my problem or not (set display)
- }
+ this.showProblem(location.hash.slice(1));
else
- {
- // Fetch most recent problems from server
- this.fetchProblems("backward"); //TODO: backward in time from the future. Second argument?
- }
+ this.firstFetch();
},
methods: {
- setCurIndex: function(idx) {
- this.curIdx = idx;
- location.hash = "#" + idx;
+ firstFetch: function() {
+ // Fetch most recent problems from server, for both lists
+ this.fetchProblems("others", "bacwkard");
+ this.fetchProblems("mine", "bacwkard");
+ this.listsInitialized = true;
+ },
+ showProblem: function(num) {
+ const pid = num || this.pbNum;
+ location.hash = "#" + pid;
+ const pIdx = this.singletons.findIndex(p => p.id == pid);
+ if (pIdx >= 0)
+ curProb = this.singletons[pIdx];
+ else
+ {
+ // Cannot find problem in current set; get from server, and add to singletons.
+ ajax(
+ "/problems/" + variant.name + "/" + pid, //TODO: use variant._id ?
+ "GET",
+ response => {
+ if (!!response.problem)
+ {
+ this.singletons.push(response.problem);
+ this.curProb = response.problem;
+ }
+ else
+ this.noMoreProblems("Sorry, problem " + pid + " does not exist");
+ }
+ );
+ }
},
translate: function(text) {
return translations[text];
curProblems: function() {
switch (this.display)
{
- case "list":
+ case "others":
return this.problems;
- case "myList":
+ case "mine":
return this.myProblems;
}
},
// TODO?: get 50 from server but only show 10 at a time (for example)
showNext: function(direction) {
- if (this.curIdx < 0)
- return this.fetchProblems(direction);
+ if (!this.curProb)
+ return this.fetchProblems(this.display, direction);
// Show next problem (older or newer):
let curProbs = this.curProblems();
- if ((this.curIdx > 0 && direction=="backward")
- || (this.curIdx < curProbs.length-1 && direction=="forward"))
+ // Try to find a neighbour problem in the direction, among current set
+ const neighbor = this.findClosestNeighbor(this.curProb, curProbs, direction);
+ if (!!neighbor)
{
- this.setCurIdx(this.curIdx + (direction=="forward" ? 1 : -1));
+ this.curProb = neighbor;
+ return;
}
- else //at boundary
+ // Boundary case: nothing in current set, need to fetch from server
+ const curSize = curProbs.length;
+ this.fetchProblems(this.display, direction);
+ const newSize = curProbs.length;
+ if (curSize == newSize) //no problems found
+ return this.noMoreProblems("No more problems in this direction");
+ // Ok, found something:
+ this.curProb = this.findClosestNeighbor(this.curProb, curProbs, direction);
+ },
+ findClosestNeighbor: function(problem, probList, direction) {
+ let neighbor = undefined;
+ let smallestDistance = Number.MAX_SAFE_INTEGER;
+ for (let prob of probList)
{
- const curSize = curProbs.length;
- this.fetchProblems(direction);
- const newSize = curProbs.length;
- if (curSize == newSize) //no problems found
- return;
- switch (direction)
+ const delta = Math.abs(prob.id - problem.id);
+ if (delta < smallestDistance &&
+ ((direction == "backward" && prob.id < problem.id)
+ || (direction == "forward" && prob.id > problem.id)))
{
- case "forward":
- this.setCurIdx(this.curIdx+1);
- break;
- case "backward":
- this.setCurIdx(newSize - curSize + this.curIdx-1);
- break;
+ neighbor = prob;
+ smallestDistance = delta;
}
}
+ return neighbor;
+ },
+ noMoreProblems: function(message) {
+ this.nomoreMessage = message;
+ let modalNomore = document.getElementById("modalNomore");
+ modalNomore.checked = true;
+ setTimeout(() => modalNomore.checked = false, 2000);
+ },
+ displayList: function() {
+ this.curProb = null;
+ location.hash = "";
+ // Fetch problems if first call (if #num, and then lists)
+ if (!this.listsInitialized)
+ this.firstFetch();
},
toggleListDisplay: function() {
- this.display = (this.display == "list" ? "myList" : "list");
+ this.display = (this.display == "others" ? "mine" : "others");
},
- // TODO: modal "there are no more problems"
- fetchProblems: function(direction) {
- const problems = if ... this.problems ... ou this.myProblems;
- if (this.problems.length == 0)
- return; //what could we do?! -------> ask problems older than MAX_NUMBER + backward
- // Search for newest date (or oldest)
- let last_dt = this.problems[0].added;
- for (let i=0; i<this.problems.length; i++)
+ fetchProblems: function(type, direction) {
+ let problems = (type == "others" ? this.problems : this.myProblems);
+ let last_dt = (direction=="forward" ? 0 : Number.MAX_SAFE_INTEGER);
+ if (this.problems.length > 0)
{
- if ((direction == "forward" && this.problems[i].added > last_dt) ||
- (direction == "backward" && this.problems[i].added < last_dt))
+ // Search for newest date (or oldest)
+ last_dt = problems[0].added;
+ for (let i=1; i<problems.length; i++)
{
- last_dt = this.problems[i].added;
+ if ((direction == "forward" && this.problems[i].added > last_dt) ||
+ (direction == "backward" && this.problems[i].added < last_dt))
+ {
+ last_dt = this.problems[i].added;
+ }
}
}
- ajax("/problems/" + variant.name, "GET", { //TODO: use variant._id ?
- direction: direction,
- last_dt: last_dt,
- }, response => {
- if (response.problems.length > 0)
+ ajax(
+ "/problems/" + variant.name, //TODO: use variant._id ?
+ "GET",
{
- this.problems = response.problems
- .sort((p1,p2) => { return p1.added - p2.added; });
- this.setCurIndex(response.problems.length - 1);
+ type: type,
+ direction: direction,
+ last_dt: last_dt,
+ },
+ response => {
+ if (response.problems.length > 0)
+ {
+ Array.prototype.push.apply(problems,
+ response.problems.sort((p1,p2) => { return p1.added - p2.added; }));
+ // If one list is empty but not the other, show the non-empty
+ const otherArray = (type == "mine" ? this.problems : this.myProblems);
+ if (problems.length > 0 && otherArray.length == 0)
+ this.display = type;
+ }
}
- });
+ );
},
previewProblem: function() {
if (!V.IsGoodFen(this.newProblem.fen))
return alert(translations["Empty solution"]);
this.modalProb.preview = true;
},
+ editProblem: function(prob) {
+ this.modalProb = prob;
+ document.getElementById("modal-newproblem").checked = true;
+ },
+ deleteProblem: function(pid) {
+ ajax(
+ "/problems/" + variant.name + "/" + pid, //TODO: with variant.id ?
+ "DELETE",
+ response => {
+ // Delete problem from the list on client side
+ let problems = this.curProblems();
+ const pIdx = problems.findIndex(p => p.id == pid);
+ problems.splice(pIdx, 1);
+ }
+ );
+ },
sendProblem: function() {
// Send it to the server and close modal
ajax(
{
this.modalProb.added = Date.now();
this.modalProb.preview = false;
- this.curProblems().push(JSON.parse(JSON.stringify(this.modalProb)));
+ this.myProblems.push(JSON.parse(JSON.stringify(this.modalProb)));
}
else
this.modalProb.id = 0;
}
);
},
- // TODO: catch signal edit or delete ; on edit: modify modalProb and show modal
- deleteProblem: function(pid) {
- // TODO: AJAX call
- // TODO: delete problem in curProblems() list
- },
},
})
projects / vchess.git / commitdiff
