Question

我正在使用Parse.com和JavaScript开发网站。我有我的“用户”类，但我添加的字段多于默认情况下的字段。

我希望在用户登录时从我的User类（IdGroup）中获取一个特定属性，因此我尝试在登录成功时使用IdGroup对象捕获user。

我试过这个：

Parse.User.logIn(username, pass, {
    success: function (user) {

        //var idGroup = user.get("IdGroup");

        localStorage.setItem("parseUser", true);
        localStorage.setItem("guestUser", false);
        localStorage.setItem("username", username);

        user.fetch().then(function (fetchedUser) {
            var idGroup = user.get("IdGroup");
            localStorage.setItem("IdGroup", idGroup);
        });

        window.location.href = 'index.html';
    },
    error: function (user, error) {
        alert('Invalid username or password!');
    }
});

这不起作用。

如果有人能帮助我，我将非常感激。

谢谢！

Answer 1

我原以为用户已经在登录时获取了。

但是你的回调函数传入了对象fetchedUser，并且你正在访问用户对象。所以，#include "render.h" #include "SDL2/SDL.h" #include <iostream> #include <fstream> using namespace std; const string FILE_NAME = "Orbit.txt"; const int WINDOW_WIDTH = 1280; const int WINDOW_HEIGHT = 800; const int SUN_LENGTH = 40; const int EARTH_LENGTH = 20; int main() { //Initialize SDL SDL_Init(SDL_INIT_VIDEO); SDL_Window *window; SDL_Renderer *renderer; window = SDL_CreateWindow( "test", //title SDL_WINDOWPOS_CENTERED, //initial x position SDL_WINDOWPOS_CENTERED, //initial y position WINDOW_WIDTH, //width WINDOW_HEIGHT, //height 0 //flags ); if (window == NULL) { // In the case that the window could not be made... printf("Could not create window: %s\n", SDL_GetError()); return 1; } renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED); ifstream file; file.open(FILE_NAME); //Prepare render loop string trash; string time; double xPos; double yPos; int shorterEdge; if (WINDOW_HEIGHT < WINDOW_WIDTH) { shorterEdge = WINDOW_HEIGHT; } else { shorterEdge = WINDOW_WIDTH; } int numPixelsAU = (shorterEdge/2) - (EARTH_LENGTH/2) - 5; SDL_Rect sun; sun.x = ((WINDOW_WIDTH/2) - (SUN_LENGTH/2)); sun.y = ((WINDOW_HEIGHT/2) - (SUN_LENGTH/2)); sun.w = SUN_LENGTH; sun.h = SUN_LENGTH; SDL_Rect earth; //Render loop while (file >> trash >> time >> trash >> xPos >> trash >> yPos) { //Clear previous render SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255); SDL_RenderClear(renderer); //Render Sun SDL_SetRenderDrawColor(renderer, 255, 255, 0, 255); SDL_RenderDrawRect(renderer, &sun); SDL_RenderFillRect(renderer, &sun); //Render Earth earth.x = ((sun.x + (SUN_LENGTH/2)) + (numPixelsAU*xPos) - (EARTH_LENGTH/2)); earth.y = ((sun.y + (SUN_LENGTH/2)) - (numPixelsAU*yPos) - (EARTH_LENGTH/2)); earth.w = EARTH_LENGTH; earth.h = EARTH_LENGTH; SDL_SetRenderDrawColor(renderer, 30, 144, 255, 255); SDL_RenderDrawRect(renderer, &earth); SDL_RenderFillRect(renderer, &earth); SDL_RenderPresent(renderer); SDL_Delay(50); } SDL_Delay(3000); // Close and destroy the window SDL_DestroyWindow(window); // Clean up SDL_Quit(); return 0; }可能就是你要找的东西。

从Parse.com上的User类获取自定义属性[JavaScript]

1 个答案: