Javascript 你听过定制收藏吗?
当我这样做时,它呈现Javascript 你听过定制收藏吗?,javascript,backbone.js,marionette,Javascript,Backbone.js,Marionette,当我这样做时,它呈现this.collection=App.data.players这与收藏是新收藏有关,我如何收听新收藏 使用木偶,我将玩家集合传递到具有CollectionView、CompositeView和ItemView的团队集合中 团队集合视图>团队组合视图>玩家项目视图 在team compositeView中,我将此.collection定义为一个新的PlayerCollection,它与特定的团队ID相匹配。这将呈现完美效果,但是添加一个新的玩家,如果不刷新页面,我将无法重新呈
this.collection=App.data.players代码>这与收藏是新收藏有关,我如何收听新收藏
使用木偶,我将玩家集合传递到具有CollectionView、CompositeView和ItemView的团队集合中
团队集合视图>团队组合视图>玩家项目视图
在team compositeView中,我将此.collection
定义为一个新的PlayerCollection,它与特定的团队ID相匹配。这将呈现完美效果,但是添加一个新的玩家,如果不刷新页面,我将无法重新呈现视图
// build a collection of players with this team ID
this.collection = new PlayersCollection(App.data.players.where({team_id: this.model.id}));
下面是大部分代码。我正在尝试添加/创建一个新播放器,并使用listenTo
更新视图,但由于这不是定义集合的传统方式,因此我似乎必须找到绑定它的方法
Teams.js:
addPlayer: function(e) {
e.preventDefault();
var $newPlayer = this.$el.find('input.player_name');
var Player = {
player_name : $newPlayer.val(),
team_id : this.model.id
}
App.data.players.create(Player);
$newPlayer.val('');
},
var Marionette = require('backbone.marionette'),
playerView = require('./player'),
PlayersCollection = require('../../collections/players');
var teamView = Marionette.CompositeView.extend({
events: {
'submit #AddPlayer': 'addPlayer'
},
initialize: function() {
// anytime something within this specific team changes, render
this.listenTo(this.model, 'change', this.render);
// build a collection of players with this team ID
this.collection = new PlayersCollection(App.data.players.where({team_id: this.model.id}));
},
addPlayer: function(e) {
e.preventDefault();
var $newPlayer = this.$el.find('input.player_name');
var Player = {
player_name : $newPlayer.val(),
team_id : this.model.id
}
App.data.players.create(Player);
$newPlayer.val('');
},
itemView: playerView,
appendHtml: function(collectionView, itemView){
collectionView.$('.the-players').append(itemView.el);
}
});
module.exports = CollectionView = Marionette.CollectionView.extend({
initialize: function() {
this.listenTo(this.collection, 'change', this.render);
},
itemView: teamView
});
Players.js:
addPlayer: function(e) {
e.preventDefault();
var $newPlayer = this.$el.find('input.player_name');
var Player = {
player_name : $newPlayer.val(),
team_id : this.model.id
}
App.data.players.create(Player);
$newPlayer.val('');
},
var Marionette = require('backbone.marionette'),
playerView = require('./player'),
PlayersCollection = require('../../collections/players');
var teamView = Marionette.CompositeView.extend({
events: {
'submit #AddPlayer': 'addPlayer'
},
initialize: function() {
// anytime something within this specific team changes, render
this.listenTo(this.model, 'change', this.render);
// build a collection of players with this team ID
this.collection = new PlayersCollection(App.data.players.where({team_id: this.model.id}));
},
addPlayer: function(e) {
e.preventDefault();
var $newPlayer = this.$el.find('input.player_name');
var Player = {
player_name : $newPlayer.val(),
team_id : this.model.id
}
App.data.players.create(Player);
$newPlayer.val('');
},
itemView: playerView,
appendHtml: function(collectionView, itemView){
collectionView.$('.the-players').append(itemView.el);
}
});
module.exports = CollectionView = Marionette.CollectionView.extend({
initialize: function() {
this.listenTo(this.collection, 'change', this.render);
},
itemView: teamView
});
我找不到您将新模型添加到CompositeView集合的位置?我只找到了App.data.players.create(Player)代码>它不是CompositeView的集合
如果App.data.players
是另一个主干.Collection,您需要与远程服务器保持同步,因此您正在使用create
将其持久化到服务器,请按如下方式更改addPlayer:
var Marionette = require('backbone.marionette');
module.exports = playerView = Marionette.ItemView.extend({
className: 'players-wrap row',
template: require('../../../templates/teams/player.hbs'),
events: {
'mouseenter .player-image': 'playerOn',
'mouseleave .player-image': 'playerOff',
'click .player-image': 'playerClicked',
'keydown': 'on_keypress',
'click .one-point': 'onePoint',
'click .two-point': 'twoPoint',
'click .three-point': 'threePoint'
},
initialize:function() {
_.bindAll(this, 'on_keypress');
$(document).bind('keydown', this.on_keypress);
this.listenTo(this.model, 'change', this.render);
this.$el.attr('data-player', this.model.get('player_name').replace(/\s+/g,"_").toLowerCase());
window.play = this.model;
},
playerOn:function(e) {
this.$el.addClass('hover');
this.findPlayer(this.model.get('player_name'), 'add');
},
playerOff:function() {
this.$el.removeClass('hover');
this.findPlayer(this.model.get('player_name'), 'remove');
},
playerClicked:function() {
this.$el.toggleClass('hover-clicked');
this.findPlayer(this.model.get('player_name'), 'toggle');
},
findPlayer:function(name, action) {
var player = $('.data-wrap .player-data[data-player='+ name.replace(/\s+/g,"_").toLowerCase() +']');
if(action === 'toggle') { player.toggleClass('show-confirmed-clicked') }
if(action === 'add') { player.addClass('show-player-data') }
if(action === 'remove') { player.removeClass('show-player-data') }
},
onePoint:function(e) {
var addStat = parseInt(this.model.get('points')) + 1;
this.model.set('points', addStat);
this.model.save();
},
twoPoint:function(e) {
var addStat = parseInt(this.model.get('points')) + 2;
this.model.set('points', addStat);
this.model.save();
},
threePoint:function(e) {
var addStat = parseInt(this.model.get('points')) + 3;
this.model.set('points', addStat);
this.model.save();
},
on_keypress:function(e) {
this.keyStat(e, 49, 'points', 1); // 1 point
this.keyStat(e, 50, 'points', 2); // 2 points
this.keyStat(e, 51, 'points', 3); // 3 points
this.keyStat(e, 82, 'rebounds', 1); // R rebounds
this.keyStat(e, 83, 'steals', 1); // S steals
},
keyStat:function(e, keyVal, stat, number) {
if(e.keyCode == keyVal && !e.ctrlKey) {
if(this.$el.hasClass('hover')) {
var addStat = parseInt(this.model.get(stat)) + number;
this.model.set(stat, addStat);
this.model.save();
}
}
},
templateHelpers:function(){
return {
name_format: this.model.get('player_name').replace(/\s+/g, '_').toLowerCase()
}
}
});
CompositeView
将捕获集合的“添加”事件并附加新的itemView。
如果有帮助,请告诉我
请注意:在查看您的代码后,我发现Teams.js中的appendHtml
可以使用itemViewContainer
属性删除,属性值为。玩家
将提高渲染性能。是的,因此它是一个嵌套集合,然后,我将玩家从团队对象中取出,并将玩家集合设置为全局的,这很可能就是为什么它不会触发的原因,因为它是全局的。我需要将它传递到视图中。你说得对,我需要弄清楚如何才能在合成视图中实现这一点。谢谢你,伙计。我希望我能想到这个lol。感谢这里的优秀员工。我很高兴它有帮助。我正在阅读关于itemViewContainer
它只是一个函数吗。如何将其替换为appendHtml
实际上它是CompositeView
的一个属性,如果设置它,它将指向将呈现集合模型的ItemViews
的容器。阅读更多。