如何在Angular的指令模板中设置ngModel？

Question

here is the jsfiddle . HTML:

<div ng-app="app">
    <div ng-controller="ctrl">
        <div my-rd name="gender" value="male" model="gender"></div>
        <div my-rd name="gender" value="female" model="gender"></div>
        <p>Your choice is: {{gender}}</p>
    </div>
</div>

JS:

angular.module("app", [])
.directive("myRd", function(){
    return{
        restrict: "A",
        scope: {
            name: "@",
            value: "@",
            model: "="
        },
        template: "<input name='{{name}}' ng-model='model' value='{{value}}' checked type='radio' />{{value}}"
    }
})
.controller("ctrl", function($scope){

})

I created a directive which can generate a custom radio button with custom attributes. The problem is I can't set ng-model name correctly and the "checked" property doesn't work as well.
Please give me a hand, many thanks!

Answer 1

You use the shorthand syntax = that means the attribute name is the same as the value you want to bind to inside the directive's scope.

If the declaration is <div my-rd foo="test"> then you have to specify in your directive

model: "=foo" //It tells $compile to bind to the foo attribute.

Here in your directive you can access the value

//directive will know only the property inside scope:{'your_propery': value}    
//to access the value inside directive {{your_propery}}
scope.model //{{model}}

And in your controller you can access the value

$scope.test //{{test }}

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