AngularJS: change json object values with input fields (with ng-click for instance)

Question

"myData" in the code below is a json object which I extract from $http.get response (I call the request when my web app is initialised). User has to be able to change the data, so I created the code below with inputs that are filled with values in this object.

<div ng-repeat="(parameter,value) in myData">
    <p>{{parameter}}</p>
    <!-- show only if val is defined (not 0 or null) -->
    <div ng-repeat="(par,val) in value" ng-show="val">
        <p>{{par}} : <input type="text" value={{val}}></p> <!-- val is the value the user can change, and par is  the parameter name such as in { parameter: "value" } -->
    </div>
</div>

I created the button that the user can click when he wants to save the changed data (ng-click="saveData()").

saveData function could then use $http.put(url,data) to update the data somewhere…

What I don't know is how to pass the whole object to the saveData() function ? I know you can pass everything just by adding it like saveData(myVariableOrObject), but I don't see how I would do that in my case.

Probably I am missing something here, since I am fairly new with angularJS. Should my html inputs have some kind of ng-model there that would connect values to controller somehow? I would probably figure this out, but with the whole object, hm ? Would I need to construct the object in a controller function again or is there an easier approach?

If anyone can point me in the right direction I would be glad.

If I was unclear please ask for more info.

Thank you!

Try onclick="saveData(myData)"

Gruff Bunny
– Gruff Bunny

2014-02-02 19:37:16 +00:00
Commented Feb 2, 2014 at 19:37 — Gruff Bunny
– Gruff Bunny, Commented Feb 2, 2014 at 19:37

Matjaz Lipus · Accepted Answer · 2014-02-02 19:42:45Z

1

<input type="text" ng-model="myData[parameter][par]">

answered Feb 2, 2014 at 19:42

Matjaz Lipus

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Comments

Rokas · Accepted Answer · 2014-02-02 19:39:35Z

1

I thing ng-form is good solution for this: http://docs.angularjs.org/guide/forms

answered Feb 2, 2014 at 19:39

Rokas

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2 Comments

trainoasis Over a year ago

hmm.. i think my double ng-repeat wouldn't work well with it? How would i define ng-model values?

Rokas Over a year ago

You can define it as Matjaz answered <input type="text" ng-model="myData[parameter][par]"> and pass myData object to ng-click function

Jake · Accepted Answer · 2014-02-02 20:15:23Z

1

I've written a quick JSFiddle, which you can view here: http://jsfiddle.net/jakemulley/3AK79/1/

As you can see, the 'data' is linked to the ng-model attribute on both inputs, which means you don't need value={{val}}.

Also, which is probably worth noting, is that forms can have the ng-submit attribute, which calls the function inside upon submitting the form (in this case, save(user)).

Note 1: The data provided here can be replaced with your http.get data.

Note 2: By passing through 'user', you get both the username and displayname, which you can post to http.put as the data.

Does that help at all?

answered Feb 2, 2014 at 20:15

Jake

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trainoasis Over a year ago

thank you, it did help, but unfortunately the exact ng-model answer above helped even more!

ozantunca · Accepted Answer · 2014-02-02 21:19:14Z

0

First of all it's not ng-onclick it's ng-click.

Secondly, {{val}} expression is a one-way binding. Which means changes inside your input tag won't affect val variable. You will need to use ng-model for two-way binding. After that you can easily ng-click="saveData(myData)" or just ng-click="saveData()" and get values inside the controller with $scope.myData .

answered Feb 2, 2014 at 21:19

ozantunca

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1 Comment

trainoasis Over a year ago

Yeah, i know, i wrote it correctly in my title, my bad :) thanks for your answer, though Matjaz's answer was directly what I needed

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