Tips for successfully passing the selected dropdown value into contextscope within AngularJS

Hey there! I currently have a dropdown list featuring various animals. Here is the code snippet:

$scope.animals = [
      {value:'lion', name:'lion', description: 'lion'}, 
      {value:'cat', name:'cat', description: 'cat'}, 
      {value:'dog', name:'dog', description: 'dog'}, 
    ];

My objective is to pass the selected value from the dropdown as contextscope to another directive. Check out this example:

<md-select ng-model="context">
    <md-option ng-repeat="animal in animals" value="{{animal.value}}"  aria-label="{{animal.name}}">{{animal.name}}</md-option>
</md-select>
<div described-type flex="70" contextscope="context"></div>

Within the described-type directive, I am including a field for adding descriptions like so:

<input ng-model="context.description" name="context.description">

However, I'm encountering an error that states: "Cannot create property 'description' on string 'lion'". What I actually desire is a JSON format similar to this:

"lion" : {
           "description": "wild animal"
         }

Any ideas on how I can resolve this error and effectively create the desired JSON structure?

Answer №1

The value is being set incorrectly. The ngModel should be assigned the value of animal.value, not just the string "lion". Here's how it should look:

<md-select ng-model="context">
    <md-option ng-repeat="animal in animals" value="{{animal}}"  aria-label="{{animal.name}}">{{animal.name}}</md-option>
</md-select>
<div described-type flex="70" contextscope="context"></div>

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