我对骨干非常新,我正在挣扎一点。 我以某种方式从服务器(json)中成功地获取数据,但我是否采取了正确/最佳的方式?
我的看法都是这样。 但是,意见中的事件并没有发生。 前进的最佳途径是什么?
该守则是:
var surveyUrl = "/api/Survey?format=json&callback=?";
AnswerOption = Backbone.Model.extend({});
AnswerOptionView = Backbone.View.extend({
initialize: function () {
_.bindAll(this, updateCheckedState );
},
events: {
"click .answerOptionControl": "updateCheckedState" //still noy firing :-(
},
render: function() {
this.model.get( answerOption ).questionChoiceType = this.model.get( questionChoiceType );
var template = _.template($("#questionAnswerOptionTemplate").html(), this.model.get( answerOption ));
$(this.el).html(template);
return this;
},
updateCheckedState: function(e) {
alert("Here is my event origin: " + e.target)
}
});
Question = Backbone.Model.extend({});
QuestionView = Backbone.View.extend({
render: function() {
var template = _.template($("#questionTemplate").html(), this.model.get( question ));
$(this.el).html(template);
/*validator code removed*/
for (var i = 0; i < this.model.get( question ).answerOptions.length; i++) {
var qModel = new AnswerOption({
answerOption: this.model.get( question ).answerOptions[i]
});
var view = new AnswerOptionView({ model: qModel });
this.$( fieldset ).append(view.render().el.innerHTML);
}
return this;
}
});
Survey = Backbone.Model.extend({
url: function () { return this.get("id") ? surveyUrl + / + this.get("id") : surveyUrl; }
});
SurveyList = Backbone.Collection.extend({
model: Survey,
url: surveyUrl
});
SurveyView = Backbone.View.extend({
initialize: function () {
_.bindAll(this, render );
this.model.bind( refresh , this.render);
this.model.bind( change , this.render);
},
// Re-render the contents
render: function () {
for (var i = 0; i < this.model.attributes[0].questions.length; i++) {
var view = new QuestionView();
var qModel = new Question({
question: this.model.attributes[0].questions[i]
});
view.model = qModel;
$(this.el).append(view.render().el.innerHTML);
}
this.el.trigger( create );
}
});
$(document).ready(
function () {
aSurvey = new Survey({ Id: 1 });
window.App = new SurveyView({ model: aSurvey, el: $("#questions") });
aSurvey.fetch();
});
-
<body>
<div id="questions"></div>
<!-- Templates -->
<script type="text/template" id="questionAnswerOptionTemplate">
<input name="answerOptionGroup<%= questionId %>" id="answerOptionInput<%= id %>" type="checkbox" class="answerOptionControl"/>
<label for="answerOptionInput<%= id %>"><%= text %></label>
</script>
<script type="text/template" id="questionTemplate">
<div id="question<%=id %>" class="questionWithCurve">
<h1><%= headerText %></h1>
<h2><%= subText %></h2>
<div data-role="fieldcontain" id="answerOptions<%= id %>" >
<fieldset data-role="controlgroup" data-type="vertical">
<legend> </legend>
</fieldset>
</div>
</div>
</script>
</body>
服务器上的JSON:
? ({
"name": "Survey",
"questions": [{
"surveyId": 1,
"headerText": "Question 1",
"subText": "subtext",
"type": "Choice",
"positionOrder": 1,
"answerOptions": [{
"questionId": 1,
"text": "Question 1 - Option 1",
"positionOrder": 1,
"id": 1,
"createdOn": "/Date(1333666034297+0100)/"
}, {
"questionId": 1,
"text": "Question 1 - Option 2",
"positionOrder": 2,
"id": 2,
"createdOn": "/Date(1333666034340+0100)/"
}, {
"questionId": 1,
"text": "Question 1 - Option 3",
"positionOrder": 3,
"id": 3,
"createdOn": "/Date(1333666034350+0100)/"
}],
"questionValidators": [{
"questionId": 1,
"value": "3",
"type": "MaxAnswers",
"id": 1,
"createdOn": "/Date(1333666034267+0100)/"
}, {
"questionId": 1,
"value": "1",
"type": "MinAnswers",
"id": 2,
"createdOn": "/Date(1333666034283+0100)/"
}],
"id": 1,
"createdOn": "/Date(1333666034257+0100)/"
}, {
"surveyId": 1,
"headerText": "Question 2",
"subText": "subtext",
"type": "Choice",
"positionOrder": 2,
"answerOptions": [{
"questionId": 2,
"text": "Question 2 - Option 1",
"positionOrder": 1,
"id": 4,
"createdOn": "/Date(1333666034427+0100)/"
}, {
"questionId": 2,
"text": "Question 2 - Option 2",
"positionOrder": 2,
"id": 5,
"createdOn": "/Date(1333666034440+0100)/"
}, {
"questionId": 2,
"text": "Question 2 - Option 3",
"positionOrder": 3,
"id": 6,
"createdOn": "/Date(1333666034447+0100)/"
}],
"questionValidators": [{
"questionId": 2,
"value": "3",
"type": "MaxAnswers",
"id": 3,
"createdOn": "/Date(1333666034407+0100)/"
}, {
"questionId": 2,
"value": "1",
"type": "MinAnswers",
"id": 4,
"createdOn": "/Date(1333666034417+0100)/"
}],
"id": 2,
"createdOn": "/Date(1333666034377+0100)/"
}, {
"surveyId": 1,
"headerText": "Question 3",
"subText": "subtext",
"type": "Choice",
"positionOrder": 3,
"answerOptions": [{
"questionId": 3,
"text": "Question 3 - Option 1",
"positionOrder": 1,
"id": 7,
"createdOn": "/Date(1333666034477+0100)/"
}, {
"questionId": 3,
"text": "Question 3 - Option 2",
"positionOrder": 2,
"id": 8,
"createdOn": "/Date(1333666034483+0100)/"
}, {
"questionId": 3,
"text": "Question 3 - Option 3",
"positionOrder": 3,
"id": 9,
"createdOn": "/Date(1333666034487+0100)/"
}],
"questionValidators": [{
"questionId": 3,
"value": "3",
"type": "MaxAnswers",
"id": 5,
"createdOn": "/Date(1333666034463+0100)/"
}, {
"questionId": 3,
"value": "1",
"type": "MinAnswers",
"id": 6,
"createdOn": "/Date(1333666034470+0100)/"
}],
"id": 3,
"createdOn": "/Date(1333666034457+0100)/"
}, {
"surveyId": 1,
"headerText": "Question 4",
"subText": "subtext",
"type": "Choice",
"positionOrder": 4,
"answerOptions": [{
"questionId": 4,
"text": "Question 4 - Option 1",
"positionOrder": 1,
"id": 10,
"createdOn": "/Date(1333666034500+0100)/"
}, {
"questionId": 4,
"text": "Question 4 - Option 2",
"positionOrder": 2,
"id": 11,
"createdOn": "/Date(1333666034507+0100)/"
}, {
"questionId": 4,
"text": "Question 4 - Option 3",
"positionOrder": 3,
"id": 12,
"createdOn": "/Date(1333666034507+0100)/"
}],
"questionValidators": [{
"questionId": 4,
"value": "3",
"type": "MaxAnswers",
"id": 7,
"createdOn": "/Date(1333666034493+0100)/"
}, {
"questionId": 4,
"value": "1",
"type": "MinAnswers",
"id": 8,
"createdOn": "/Date(1333666034497+0100)/"
}],
"id": 4,
"createdOn": "/Date(1333666034490+0100)/"
}],
"id": 1,
"createdOn": "/Date(1333666034243+0100)/"
})