logo
down
shadow

Laravel: how to get average on nested hasMany relationships (hasManyThrough)


Laravel: how to get average on nested hasMany relationships (hasManyThrough)

By : wobagi
Date : November 18 2020, 01:01 AM
seems to work fine You need something like this http://softonsofa.com/tweaking-eloquent-relations-how-to-get-hasmany-relation-count-efficiently/ only slightly adjusted to match your needs:
code :
public function reviewRows()
{
    return $this->hasManyThrough('ReviewRow', 'Review');
}

public function avgRating()
{
    return $this->reviewRows()
      ->selectRaw('avg(rating) as aggregate, product_id')
      ->groupBy('product_id');
}

public function getAvgRatingAttribute()
{
    if ( ! array_key_exists('avgRating', $this->relations)) {
       $this->load('avgRating');
    }

    $relation = $this->getRelation('avgRating')->first();

    return ($relation) ? $relation->aggregate : null;
}
// eager loading
$products = Product::with('avgRating')->get();
$products->first()->avgRating; // '82.200' | null

// lazy loading via dynamic property
$product = Product::first()
$product->avgRating; // '82.200' | null


Share : facebook icon twitter icon
Many To Many relationships in Laravel: belongsToMany() vs. hasManyThrough()

Many To Many relationships in Laravel: belongsToMany() vs. hasManyThrough()


By : user7437282
Date : March 29 2020, 07:55 AM
I hope this helps . Let's say you have two models, let's call A and B:
If A may have more than one items of B, and also If B may have more than one items of A (think like blog posts / tags) You have to use belongsToMany();
Laravel Relationships: hasManyThrough, belongsTo, belongsToMany

Laravel Relationships: hasManyThrough, belongsTo, belongsToMany


By : Aaron Labelle
Date : March 29 2020, 07:55 AM
I wish did fix the issue. Heyy, I have a Laravel project here, can u guys help me with this question about relationship? , I believe your models look like this:
User model
code :
class User extends Model
{
    public function blockRanges()
    {
        return $this->belongsToMany('App\BlockRange', 'user_block_ranges', 'user_id', 'block_range_id');
    }
}
class BlockRange extends Model
{
    public function event()
    {
        return $this->belongsTo('App\Event');
    }
}
$user = App\User::find(1);

$events = array();

foreach ($user->blockRanges as $block_range) {
    $events = $block_range->event;
}
Laravel 5.6 Model HasManyThrough Relationships of 3 Tables

Laravel 5.6 Model HasManyThrough Relationships of 3 Tables


By : Raverboi Gregerz
Date : March 29 2020, 07:55 AM
wish helps you If I don't misunderstood your question you have a pivot table image_transaction which is many-to-many relationship. Eloquent automatically arrange pivot table's name alphabetically like transactions_venue_image so you need to pass your custom name image_transaction in the parameter. [docs]
In your VenueImage Model
code :
public function transactions()
{
    return $this->belongsToMany('App\Transaction','image_transaction');
}
public function venue_images()
{
    return $this->belongsToMany('App\VenueImage','image_transaction');
}
$transactions = transaction::where('user_id', Auth::id())->with('venue_images')->get();
Laravel 5 eloquent hasManyThrough / belongsToManyThrough relationships

Laravel 5 eloquent hasManyThrough / belongsToManyThrough relationships


By : André Minoro Fusioka
Date : March 29 2020, 07:55 AM
wish helps you I have developed a custom BelongsToManyThrough relationship which might interest you. You would need to add the new relation class (as given in my gist; it is too long to paste here), and also override your base Model class as described in the gist to implement belongsToManyThrough.
Then (assuming you are using Laravel's default table naming schemes - if not, you can specify the joining tables as well), you would define your relationship as:
Laravel 5.1 hasManyThrough relationships and pivot table

Laravel 5.1 hasManyThrough relationships and pivot table


By : Yigit Polat
Date : March 29 2020, 07:55 AM
this will help I have the following models / tables setup in my application; , In your Role model make a method:
Related Posts Related Posts :
  • Curl PHP cannot display amazon
  • Symfony, getters and setters vs magic methods
  • Using 'continue' PHP instruction outside the loop
  • AJAX POST return data not appearing
  • Can I query relations using an INNER JOIN instead of two queries in Eloquent?
  • Looping through dynamic form fields and inserting into database
  • My php code can't select mysql auto_increment value
  • Store Angularjs form data in database using php
  • I want to run my sh file continuously even if I close my Putty connection
  • file_get_contents equivalent for gzipped files
  • Include PHP file with jQuery
  • php curl headers do not return from website?
  • How to find out, if facebook ID is a user, group or page
  • Connect webhost database to android database
  • preg_match get div content with class
  • Upload multiple files in Laravel 4
  • Count array numbers in multidimensional array
  • PHP Date diff with a difference
  • Search Customer by custom field in Netsuite
  • Is it possible to hide/encode/encrypt php source code and let others have the system?
  • list items to be displayed using php code and array
  • check if row exists mysqli
  • PHP errors loading MySQL
  • setup PostgreSQL with Laravel in MAMP
  • PHP - CodeIgniter Notifications
  • Encrypting a password column in a SQL database
  • New to PHP, trying to extract information from another website
  • JavaScript AmChart to Image for Email
  • Is javascript validation enough to keep my forms secure?
  • Regex extract variables from [shortcode]
  • Download a .mp3 link and save it to computer with PHP
  • Error with the ereg_replace
  • Getting the fields attached to a bundle of an entity in Drupal
  • Php how to check multiple times (within `foreach`) if values from array exists in mysql?
  • MySQL and PHP parsing strange string
  • Pull specific data from multidimensional associative array
  • How to get the original URI extension using PHP Tonic?
  • Upload videos and images from Android to PHP server?
  • Unset a multidimensional array with another multidimensional array with values than key
  • Calling a user e-mail to add to a mailto link PHP
  • Why is override_function coming back as an undefined function
  • PHP mySQLi_fetch_all: iterate through each row
  • Using pow in php
  • What's wrong with my PHP Script? T_String issue
  • how to call a function of another file without including that file
  • is_rgb function in php
  • transform the numbers to letters using php
  • How to catch an exception from another class method PHP
  • PHP exec is blocked by ISP
  • PHP4 to PHP5 migration character encoding. latin1 vs utf8
  • Begin Transaction not defined
  • How much harm can a user do with xss on a page unique to them?
  • How to import data from a php file to javascript variable
  • PHP and Javascript - log complete workflow
  • When I echo !!! 0 it gives me a strange result
  • jquery ajax post dies after submit
  • How to upload file with curl on sftp server
  • Advanced search using a text input to search through only one category
  • Why do I get "Non-static method App\Models\Category::products() should not be called statically" in laravel
  • Stop notices from undefined indexes in arrays
  • shadow
    Privacy Policy - Terms - Contact Us © ourworld-yourmove.org