Created
December 16, 2012 06:57
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| // Set up a collection to contain player information. On the server, | |
| // it is backed by a MongoDB collection named "players". | |
| Players = new Meteor.Collection("players"); | |
| if (Meteor.isClient) { | |
| Template.leaderboard.players = function () { | |
| return Players.find({}, {sort: {score: -1, name: 1}}); | |
| }; | |
| Template.leaderboard.selected_name = function () { | |
| var player = Players.findOne(Session.get("selected_player")); | |
| return player && player.name; | |
| }; | |
| Template.player.selected = function () { | |
| return Session.equals("selected_player", this._id) ? "selected" : ''; | |
| }; | |
| Template.leaderboard.events({ | |
| 'click input.inc': function () { | |
| Players.update(Session.get("selected_player"), {$inc: {score: 5}}); | |
| } | |
| }); | |
| Template.player.events({ | |
| 'click': function () { | |
| Session.set("selected_player", this._id); | |
| } | |
| }); | |
| } | |
| // On server startup, create some players if the database is empty. | |
| if (Meteor.isServer) { | |
| Meteor.startup(function () { | |
| if (Players.find().count() === 0) { | |
| var names = ["Ada Lovelace", | |
| "Grace Hopper", | |
| "Marie Curie", | |
| "Carl Friedrich Gauss", | |
| "Nikola Tesla", | |
| "Claude Shannon"]; | |
| for (var i = 0; i < names.length; i++) | |
| Players.insert({name: names[i], score: Math.floor(Math.random()*10)*5}); | |
| } | |
| }); | |
| } |
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| <head> | |
| <title>Leaderboard</title> | |
| </head> | |
| <body> | |
| <div id="outer"> | |
| {{> leaderboard}} | |
| </div> | |
| </body> | |
| <template name="leaderboard"> | |
| <div class="leaderboard"> | |
| {{#each players}} | |
| {{> player}} | |
| {{/each}} | |
| </div> | |
| {{#if selected_name}} | |
| <div class="details"> | |
| <div class="name">{{selected_name}}</div> | |
| <input type="button" class="inc" value="Give 5 points" /> | |
| </div> | |
| {{/if}} | |
| {{#unless selected_name}} | |
| <div class="none">Click a player to select</div> | |
| {{/unless}} | |
| </template> | |
| <template name="player"> | |
| <div class="player {{selected}}"> | |
| <span class="name">{{name}}</span> | |
| <span class="score">{{score}}</span> | |
| </div> | |
| </template> |
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