Here is the JSON object I have:
new Ajax.Request(url, {
method: 'post',
contentType: "application/x-www-form-urlencoded",
parameters: {
"javax.faces.ViewState": encodedViewState,
"client-id": options._clientId,
"component-value": options._componentValue
}
});
My goal now is to dynamically add new parameters to the existing "Parameters" object, but I'm unsure of the correct way to do this programmatically.
Assigning to it is a simple task, although it's recommended to do so before initiating the request.
let data = {
"javax.faces.ViewState": encodedViewState,
"client-id": options._clientId,
"component-value": options._componentValue
}
data.foo = 'bar';
let myRequest = new Ajax.Request(url, {
method: 'post',
contentType: "application/x-www-form-urlencoded",
parameters: data
});
If you have a JSON object named obj in the Ajax.Request Javascript function, you can easily update the parameters by doing the following:
obj['parameters']['anotherproperty'] = 'anothervalue';I trust this information is beneficial to you.
Once you instantiate a new object using the new keyword, any attempts to append to it will be futile as Prototype immediately initializes and processes the Ajax request. If you wish to modify the parameters object, consider implementing the following approach:
var params = {
"javax.faces.ViewState": encodedViewState,
"client-id": options._clientId,
"component-value": options._componentValue
// Include extra properties here like so:
// propertyName : propertyValue
};
// Alternatively, append properties this way:
// params.propertyName = propertyValue;
new Ajax.Request(url, {
method: 'post',
contentType: "application/x-www-form-urlencoded",
parameters: params
});
Here is a solution I came up with for updating the existing data attribute in a JSON object. It needed to be flexible enough to handle various key-value pairs. Based on some research, I created the following method that seems to work well for me.
updateData : function(newData){
this.data = newData;
this.updateAttribute = function(dataToUpdate){
var jsonArray = JSON.stringify(dataToUpdate).replace('{','').replace('}','').split('","');
for(var i = 0; i < jsonArray.length; i++){
var pair = jsonArray[i].split(':');
this.data[pair[0].replace(/"/g,'')] = pair[1].replace(/"/g,'');
}
}
}
The result is a single JSON object with multiple attributes, which can then be easily sent to the server using the JSON.stringify() command in an ajax request. As I continue working with JSON, I am open to suggestions for improving this method.
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