What Laravel Scopes are made for...

LaravelScopes.php

<?php
// We had a relationship similar to the one below:
public function currentParameters()
{
	return $this->hasOne('Parameter')->where('active_date', '<=', Carbon::now())->orderBy('active_date', 'DESC');
}

// This pretty much got the last active parameter for a specific model.
// However, sometimes we wanted to see into the future/past, which wasn't entirely possible.
// Especially if you wanted to eagerload it.

// The Solution:
private parameterDate;

public function currentParameters()
{
	$date = $this->parameterDate ?: Carbon::now();
	return $this->hasOne('Parameter')->where('active_date', '<=', $date)->orderBy('active_date', 'DESC');
}

public function scopeSetParameterDate($query, Carbon $date)
{
	$this->parameterDate = $date;
}

// Which allowed you to do something in the lines of:
Model::setParameterDate(Carbon::parse('16 Feb 1990'))->with('currentParameters')->where(.......)->get();

// Result = Sexy ^^