You can set the default value for the controller query parameter property the value of which will not be serialized into the URL.
Syntax
Ember.ArrayController.extend ({
queryParams: 'queryParameterName',
queryParameterName: defaultValue
});
Example
The example given below specifies setting the default value to the query parameter. Create a new route and name it as defaultvaluedeserialize and open the router.js file to define the URL mappings −
import Ember from 'ember';
//Access to Ember.js library as variable Ember
import config from './config/environment';
//It provides access to app's configuration data as variable config
//The const declares read only variable
const Router = Ember.Router.extend ({
location: config.locationType,
rootURL: config.rootURL
});
//Defines URL mappings that takes parameter as an object to create the routes
Router.map(function() {
this.route('defaultvaluedeserialize');
});
//It specifies Router variable available to other parts of the app
export default Router;
Open the file application.hbs file created under app/templates/ with the following code −
<h2>Default Values and Deserialization</h2>
{{#link-to 'defaultvaluedeserialize'}}Click Here{{/link-to}}
When you click the above link, the page should open with a input box which takes a value entered by the user. Open the defaultvaluedeserialize.hbs file and add the following code −
//sending action to the addQuery method
<form {{action "addQuery" on = "submit"}}>
{{input value = queryParam}}
<input type = "submit" value = "Send Value"/>
</form>
{{outlet}}
Now open the defaultvaluedeserialize.js file created under app/controllers/ with the following code −
import Ember from 'ember';
export default Ember.Controller.extend ({
//assigning query parameter name as 'query'
queryParams: 'query',
//assigning the query param to a default value as 1
query: 1,
queryParam: Ember.computed.oneWay('query'),
actions: {
addQuery: function () {
this.set('query', this.get('queryParam'));
document.write(this.get('query'));
}
}
});
Output
Run the ember server and you will receive the following output −
When you click on the link, it displays the specified default value in the input box −
After clicking the button, it will show the default value and it won’t be serialized into the URL −
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