Reputation: 211
Let's say we have something like this with the jQuery select2 plugin:
$(function() {
$('.select2').select2({
minimumInputLength: 1,
ajax: {
dataType: 'json',
cache: true,
url: getUrl,
data: getData,
processResults: getProcessResults
}
});
function getUrl() {
return 'http://beta.json-generator.com/api/json/get/4JZYSpOHM';
}
function getData(params) {
return {
q: params.term
};
}
function getProcessResults(data) {
return {
results: data
};
}
});
.select2 {
width: 100%;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.3/js/select2.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.3/css/select2.min.css" rel="stylesheet" />
<select class="select2"></select>
But we wanna use an object literal or the module pattern for the jQuery feature and plugin like this:
var myAjax = {
init: function() {
var _this = this;
$('.select2').select2({
minimumInputLength: 1,
ajax: {
dataType: 'json',
cache: true,
url: _this.getUrl,
data: _this.getData,
processResults: _this.getProcessResults
}
});
},
getUrl: function() {
return 'http://beta.json-generator.com/api/json/get/4JZYSpOHM';
},
getData: function(params) {
return {
q: params.term
};
},
getProcessResults: function(data) {
return {
results: data
};
}
};
$(document).ready(myAjax.init);
.select2 {
width: 100%;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.3/js/select2.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.3/css/select2.min.css" rel="stylesheet" />
<select class="select2"></select>
How can we do that?
Sources:
https://learn.jquery.com/code-organization/concepts/
https://select2.github.io/examples.html#data-ajax
Upvotes: 1
Views: 490
Reputation: 337743
The issue you have is that this
within the init
function will refer to the document
, as you run it under the document.ready handler. To fix this you can use the myAjax
variable directly to call its properties and methods. Try this:
var myAjax = {
init: function() {
$('.select2').select2({
minimumInputLength: 1,
ajax: {
dataType: 'json',
cache: true,
url: myAjax.getUrl(),
data: myAjax.getData,
processResults: myAjax.getProcessResults
}
});
},
getUrl: function() {
return 'http://beta.json-generator.com/api/json/get/4JZYSpOHM';
},
getData: function(params) {
return {
q: params.term
};
},
getProcessResults: function(data) {
return {
results: data
};
}
};
$(document).ready(myAjax.init);
.select2 {
width: 100%;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.3/js/select2.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.3/css/select2.min.css" />
<select class="select2"></select>
I'd also suggest you change the name of the object as myAjax
isn't very semantic given its purpose.
Upvotes: 1