TutanRamon

TutanRamon

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07 Sep
1 week ago

TutanRamon left a reply on Return Parents And Childs From Model

Ok, I figured it out. For those who are struggling with the same problem (or something similar).

It was pretty easy actually.

    public function parentNodes()
    {
        return $this->belongsToMany('App\Node', 'nodes_relations', 'nodes_id', 'relation_nodes_id');
    }

    public function childNodes()
    {
        return $this->belongsToMany('App\Node', 'nodes_relations', 'relation_nodes_id', 'nodes_id');
    }

That's it!

03 Sep
2 weeks ago

TutanRamon started a new conversation Return Parents And Childs From Model

I have a model "Node". A node may have many childs and many parents.

So, the tables look like this

table nodes

id | name    | created_at | updated_at
1  | Node A  | ..         | ..
2  | Node B  | ..         | ..
3  | Node C  | ..         | ..
4  | Node D  | ..         | ..

table nodes_relations

id | nodes_id | relation_nodes_id | created_at | updated_at
1  | 2        | 1                 | ..         | ..
1  | 3        | 1                 | ..         | ..
1  | 4        | 2                 | ..         | ..

Briefly:

  • Node A has 0 parents and 2 childs (node B and node C)
  • Node B has 1 parent (node A) and 1 child (node D)
  • Node C has 1 parent (node A) and 0 childs
  • Node D has 1 parent (Node B) and 0 childs

In my Node class, I have defined the following relation:

    public function parents()
    {
        return $this->hasMany('App\NodesRelations','nodes_id');
    }

    public function children()
    {
        return $this->hasMany('App\NodesRelations', 'relation_nodes_id');
    }

And this is the class NodeRelation:

class NodesRelations extends Model
{
    //

    public function parent()
    {
        return $this->belongsTo('App\Nodes', 'relation_nodes_id');
    }

    public function self()
    {
        return $this->belongsTo('App\Nodes', 'nodes_id');
    }
}

I have a simple view to test the response:

$node = App\Nodes::with('parents','parents.self','children','children.self')->findOrFail($node_id);

echo $node;

The problem is that I do see the children with a the needed info (name for instance), when $node_id = 1, but parents is null when i query $node_id = 2.

Can somebody point me in the right direction? I have been struggling about this for hours now. Thanks in advance.

05 Jan
2 years ago

TutanRamon left a reply on Question About A Dashboard Controller

Just to be sure: I don't need a Dashboard model, do I?

TutanRamon left a reply on Question About A Dashboard Controller

OK, so this is the dashboardController. Thanks. I only need to add some "use App\Product" and "use App\Transaction" at the top of this controller, right?

TutanRamon left a reply on Question About A Dashboard Controller

Hi Khare,

Thanks for your prompt reply. I think I understand what you are doing, but you say "In controller" as a title above the example code. Which controller are you refering to? Is that the new 'dashboardController' or the 'productController'? I think it's the dashboardController. If so, can I then simply do this for other info for example?

public function index()
{
    $products = Product::latestFirst('insert wanted categoryid');
    return view('products.someview', compact('products'));

    $catalogueSize = Product::count('category..');
    return view('products.someview', compact('catalogueSize'));

    $transactions = Transaction::latestFirst();
    return view('products.someview', compact('transactions'));
}

Or am I wrong at this?

TutanRamon started a new conversation Question About A Dashboard Controller

I've a couple of years PHP experience (spaghetti style ;-)). At the moment I am building my first MVC application using Laravel.

I am writing a dashboard page with lots of different kind of information, ie "Amount of visitors", "Amount of sold products", "catalogue size", "newest product" etc. etc. Back in the 'old days', I usually had a functions.php with all kinds of functions to retrieve this information. Then, I called these functions from the actual dashboard page template. I know, that's not the nicest way and a horror for other developers. That's one of the reasons why I wanted to go for Laravel.

I defined the template, the basic controllers and models for Product, Transaction, Visitor etc. But now I am kinda stuck. What's the best practice for sending all this data to the view? After reading on the web I concluded I have two possibilities:

  • Writing a dashboard controller with all kind of methods to retrieve the data needed
  • Making use of a facade which retrieves the data for me (from all the other controllers) and sends one(??) object with all the info to the view

Is one of the above the right approach for my 'challenge'?