How can I grab the Identifier from the URL and pass it to the Model Scope?
I have been stuck on this problem for several days.

URL: localhost/user/Matt/general
Identifiers: /user/:username?/:category?/:page?

In my custom Component or Page, I can get the Identifiers into a varaible using:

$username = $this->param('username'); //Matt (:username?)
$category = $this->param('category'); //general (:category?)

Page

[builderList]
...
scope = "scopeApplyUser"
...
{% component 'builderList' %}

Model

Now how to get it into the Scope to filter results?

// return results that match username and category
public function scopeApplyUser($query, $username = null, $category = null)
{
    $params = ['username' => $username, 'category' => $category];
    return $query->where($params);
}

I am not an expert, but I think there is no way, but hey.. luckily this builderList component does not really much, so why don't just use your own function:

function onStart()
{
   try {
     // adapt your params and query
     $this['xxx'] = YourModel::where('slug',$this->param('yourslug'))->firstOrFail();
   } 
   catch (ModelNotFoundException $ex) {
     return Redirect::to('/404');  
   }
}

And then in your page:

{% for x in xxx %}
    {{ x.anyAttribute }}
{% endfor %}

stefan19666 said:

I am not an expert, but I think there is no way, but hey.. luckily this builderList component does not really much, so why don't just use your own function:

function onStart() { try { // adapt your params and query $this['xxx'] = YourModel::where('slug',$this->param('yourslug'))->firstOrFail(); } catch (ModelNotFoundException $ex) { return Redirect::to('/404');
} }

And then in your page:

{% for x in xxx %} {{ x.anyAttribute }} {% endfor %}

Hey it is working except for one thing, Pagination does not go to the next page. Would you know how to solve this?

$this['xxx'] = YourModel::where('slug',$this->param('yourslug'))->paginate(5);

Paginate

{% if xxx.LastPage > 1 %}
    <ul class="pagination">
        {% if xxx.CurrentPage > 1 %}
            <li><a href="{{ this.page.baseFileName|page({ (pageParam): (xxx.CurrentPage-1) }) }}{{ this.page.query_string }}">← Prev</a></li>
        {% endif %}
        {% for page in 1..xxx.LastPage %}
            <li class="{{ xxx.CurrentPage == page ? 'active' : null }}">
                <a href="{{ this.page.baseFileName|page({ (pageParam): page }) }}{{ this.page.query_string }}">{{ page }}</a>
            </li>
        {% endfor %}
        {% if xxx.LastPage > xxx.CurrentPage %}
            <li><a href="{{ this.page.baseFileName|page({ (pageParam): (xxx.CurrentPage+1) }) }}{{ this.page.query_string }}">Next →</a></li>
        {% endif %}
    </ul>
{% endif %}

I made this thread the other day on a similar issue I found
https://octobercms.com/forum/post/scope-pagination