ndamnjanovic

Angular expressions are crucial while developing Angular application.
Sometimes, while working with them, you may see double curlies 
which are actually displayed on page, while it is loading.

Common scenario are titles, headings and different flash messages, 
which contain Angular expressions, but which are not always rendered 'on time'.
e.g. 
<h1> Welcome back, {{user.name}} </h1>

There are several ways to prevent user from seeing those:

ndamnjanovic

# Zwivel Ad Platform

## Requirements

- PHP >= 5.5.9
    - check your php version with **php -v** from command line
- PHP Extensions
    - OpenSSL PHP Extension
    - Mbstring PHP Extension
    - Tokenizer PHP Extension

ndamnjanovic

APP_ENV=stage
APP_DEBUG=true
APP_KEY=TuOO60ykdxiBM7E8TTOa1cTxpihHqxvs

DB_HOST=localhost
DB_DATABASE=stage_zwivel_advertising
DB_USERNAME=root
DB_PASSWORD=root

CACHE_DRIVER=file

ndamnjanovic

Assume we have a following situation:
    - We have a task that has associated checklists (one or many). 
    - Every checklist has associated items (again, one or many).

In Laravel 4, we can use Eager Loading to fetch all associated data.

Let's take a look.

First, we have have a TaskChecklistItem model as following:

ndamnjanovic

Sometimes we need to extend out model, with more than data that is fetched from database, for example. 
But on the other hand, we don't want to do that manually, and we want our framework to do that instead of us.

Here's an example, how to do that using Laravel 4.

Assume we have model Task, that has some fillable columns. Beside those, predefined columns, we want to attach additional data, let's say, parent task (and all its data).

First, we will define relationship between 'task' and 'task parent'. It is one-to-many relationship. We'll do it based on column named 'parent_id'.

    public function parentTask(){

ndamnjanovic

If you need to save/update related models, Laravel 4 makes it simple.

Let's stick to model organization presented in https://gist.github.com/ndamnjanovic/7197582.

If you now need to create/update Task, and related Models as well (Checklist, ChecklistItem),
you can do it like this, nice and simple:

$savedTask = Task::create($task);

foreach ($checklists as $checklist){

ndamnjanovic

TIP 1: Exception when performing many requests
-----------------------------------------------------------------------------------------------

If you have more than one $this->call() or $this->client->request(), inside one test method,
you may experience problems like:
    {"error":{"type":"ErrorException","message":"Undefined variable: header","file":"/*,"line":1}}
    or
    Symfony \ Component \ HttpKernel \ Exception \ MethodNotAllowedHttpException

You can solve this problem, if you do $this->client->restart(), before every next request that you're making.

ndamnjanovic

In AngularJS, you have several ways to display/hide some HTML block.
I'll mention most common one, and point out main differencies between them.

1.  ng-hide/ng-show: By using these two directives, you can hide or show html block, by simple passing expression. Example:

      <div ng-hide='checked' > Hide me, if checked is true </div>
    
2.  another way of doing same thing, is to use ng-class. You can conditionally apply some class to HTML block, and by doing that, hide or show it.

    

ndamnjanovic

In case you want to do authentication and redirection, depending on whether user is logged in or not,
you can do it by listening $routeChangeStart event.
This way, you don't need to use additional plugins, 
or to add 'resolve' parameters to your routes (which can be difficult to maintain).

In following example, if non-logged user tries to reach authenticated route, user will be redirected to login page.
If logged user tries to reach login/register page, user will be redirected to home page.

$rootScope.$on('$routeChangeStart', function(event, next, current){
  if(AuthFactory.isAuthenticated()){

ndamnjanovic

'use strict';

_app
  .provider("$exceptionHandler", {
      $get: function( ErrorLogService ) {
        return( ErrorLogService );
      }
    }
  )
  .factory('ErrorLogService', function($log, $window, stacktraceService, routes) {