How to get text box value in ember.js - textbox

Question

i have started to work on ember.js just day before.
i don't know how to get text box value while submitting. i have tried like this
this is html
<script type="text/x-handlebars" data-template-name="index">
<div >
<p>{{view Ember.TextField valueBinding="fname"}}</p>
</div>
<div>
<p>{{view Ember.TextField valueBinding="lname"}}</p>
</div>
<button {{action save}}>submit</button>
</script>
this is my ember.js file
App = Ember.Application.create();
App.IndexController = Ember.ObjectController.extend({
save:function()
{
var fname=this.get('fname');
var lname=this.get('lname');
alert(fname+','+lname);
}
});
whenever i am clicking on submit button, i am getting undefined in alert.so how to get value? i hope anyone will help me for to continue in ember.js

Answer 1

in js like this
App.WebFormController = Ember.Controller.extend({
fname: null,
lname: null,
save: function () {
var fname = this.get('fname');
var lname = this.get('lname');
alert(fname + ',' + lname);
}
});
without need a model
in template like this
<script type="text/x-handlebars" data-template-name="web_form">
<form {{action save on="submit"}}>
<div >
<p>{{input type="text" valueBinding="fname"}}</p>
</div>
<div>
<p>{{input type="text" valueBinding="lname"}}</p>
</div>
<button>submit</button>
</form>
</script>

Answer 2

Your problem is that your form doesn't have a model. You can provide it using model or setupController hook.
App.IndexRoute = Ember.Route.extend({
model: function() {
return {};
},
// or
setupController: function(controller) {
controller.set('model', {});
}
});
In addition some tips:
Use the action name on="submit" in the form, instead of action name in submit button. So you can execute the action when the user press enter key, in input.
And the input type="text" helper is a shortcut for view Ember.TextField
<script type="text/x-handlebars" data-template-name="index">
<form {{action save on="submit"}}>
<div >
<p>{{input type="text" valueBinding="fname"}}</p>
</div>
<div>
<p>{{input type="text" valueBinding="lname"}}</p>
</div>
<button>submit</button>
<form>
</script>
Here a live demo

Answer 3

That is really nice tutorial by mavilein.
We can do it at controller level also.
App.IndexController = Ember.ObjectController.extend({
content:function(){
return {fname:null,lname:null}
}.property(),
save:function()
{
var fname=this.get('fname');
var lname=this.get('lname');
alert(fname+','+lname);
}
});
Or we can do it
App.IndexController = Ember.ObjectController.extend({
fname:null,
lname:null,
save:function()
{
var fname=this.get('fname');
var lname=this.get('lname');
alert(fname+','+lname);
}
});

Answer 4

Below code is working for me:
cshtml: In script on tag specify data-template-name="text"
<script type="text/x-handlebars" data-template-name="text">
{{view Ember.TextField value=view.message}}
{{view Ember.TextField value=view.specy}}
{{textarea value=view.desc id="catdesc" valueBinding="categor" cols="20" rows="6"}}
<button type="submit" {{action "submit" target=view}}>Done</button>
</script>
app.js:
App.TextView = Ember.View.extend({
templateName: 'text',
message:'',
specy: '',
desc:'',
actions: {
submit: function (event) {
var value = this.get('specy');
var spc = this.get('message');
var de = this.get('desc');
}
}
});