How to edit using AngularJS

I am studying AngularJS and I was able to create a table receiving the MySQL database data.

Now I need to learn how to edit the data. I was able to put a modal and clicking the edit button opens, but I do not know how to pull the data.

demoApp.js:

(function () {
    'use strict';

    angular.module('myApp', ['ui.bootstrap', 'dataGrid', 'pagination', 'angular-loading-bar', 'ngAnimate'])
        .controller('myAppController', ['$scope', '$http', function ($scope, $http) {

            $scope.gridOptions = {
                data: [],
                urlSync: true,
                pagination: {
                    itemsPerPage: '10'
                }
            };


            $http({
                method: 'GET',
                url: 'get_reparaveis.php'
            }).then(function successCallback(response) {
                $scope.gridOptions.data = response.data;
            }); 

        }]);

})();

Here I call the modal, but how do I get the ng-click to get the log data on the line?

<button  class="btn btn-warning" data-toggle="modal" data-target="#edit_pn"  ng-click=""><span class="glyphicon glyphicon-edit"></span></button>