Show record of two tables

In that table they ask me to add the Course field, I could already add the column, I try to bring the result, but it does not show it to me, the course field is in the table records, I would also like to condition that if it has no course, show that you do not have, I hope your collaboration.

With the id of the user I must take the course id in the table of records, and then take the name of the course from the table courses

seintAdmin.controller('adminUsuarios', ['i18nService', 'cargaDatos', '$scope', '$uibModal', function(i18nService, cargaDatos, $scope, $uibModal){
i18nService.setCurrentLang('es');
var salida = this;
var usu = {};
var cur = {};
salida.datosTabla = {
    enableRowSelection: true,
    enableSelectAll: false,
    multiSelect: false,
    enableFiltering: true,
    selectionRowHeaderWidth: 24,
    rowHeight: 24,
    showGridFooter:true,
    paginationPageSizes: [100, 200, 500, 1000, 10000],
    paginationPageSize: 100,
    gridMenuShowHideColumns: false,

    columnDefs: [
            {name: 'id', visible: false},
            {name: 'Nombre', displayName: 'Nombre', enableColumnMenu: false},
            {name: 'Cedula', displayName: 'Cédula', enableColumnMenu: false},
            {name: 'Empresa', displayName: 'Empresa', enableColumnMenu: false},
            {name: 'FechaReg', visible: false},
            {name: 'Curso:', displayName: 'Curso:', enableColumnMenu: false}

    ]
};
cargaTabla();
function cargaTabla() {
    cargaDatos.leer('usuarios').then(function(resp){            
        cargaDatos.leer('registros').then(function(respReg){
            cargaDatos.leer('cursos').then(function(respCur){
                var resp = [];
                salida.cursos = respCur; 

                angular.forEach(respCur, function(valor, llave){
                    cur[valor.id] = valor.NombreCurso;
                }); 

                angular.forEach(respReg, function(valor, llave){
                    cur[valor.id] = valor.NombreCurso;
                });

                angular.forEach(resp, function(valor, llave){
                    resp.push({
                        'id': valor.id,
                        'Nombre': valor.Nombre,
                        'Cedula': valor.Cedula,
                        'Empresa': valor.Empresa,
                        'FechaReg': valor.FechaReg,
                        'Curso': cur[valor.CodCurso]
                    });
                });


                });
                salida.datosTabla.data = resp;
            });
    });
}