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Laravel hasMany and belongsTo parameters


Laravel hasMany and belongsTo parameters

By : Nemanja Bojic
Date : November 22 2020, 03:01 PM
around this issue To simplify the syntax, think of the return $this->hasMany('App\Comment', 'foreign_key', 'local_key'); parameters as:
The model you want to link to The column of the foreign table (the table you are linking to) that links back to the id column of the current table (unless you are specifying the third parameter, in which case it will use that) The column of the current table that should be used - i.e if you don't want the foreign key of the other table to link to the id column of the current table
code :
public function libraries()
{
    return $this->hasMany('App\Library');
}
public function libraries(){
    return $this->hasMany('App\Library', 'store_id','id');
}


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to this and in my books model I changed
code :
    public function authors(){
        return $this->belongsTo('app\authors','authId','authId');
    }
    public function authors(){
        return $this->belongsTo(authors::class,'authId','authId');
    }
difference between hasmany belongsTo , namedQuery belongsTo and hasmany instantiation grails domain

difference between hasmany belongsTo , namedQuery belongsTo and hasmany instantiation grails domain


By : pesvan
Date : March 29 2020, 07:55 AM
With these it helps belongsTo and hasMany associations in Grails effect the cascading behavior when it relates to updating/deleting instances. It has no effect on the named queries or querying in general.
Laravel 5.4 hasMany belongsTo not working

Laravel 5.4 hasMany belongsTo not working


By : LLC
Date : March 29 2020, 07:55 AM
will help you Notice how you're using DB::table("customers") in public function view()? Your relationships are defined on the model Customer, not on the DB facade, so you code should be:
code :
public function view($id)
{
    $customer = \App\Customer::where('id', $id)->first();

    return view('pages.customer.customerView', compact('customer'));
}
Laravel hasMany through belongsTo relationship

Laravel hasMany through belongsTo relationship


By : user2368985
Date : March 29 2020, 07:55 AM
I wish this helpful for you By default, HasManyThrough is a combination of two HasMany relationships.
In your case, you have to switch the first foreign and local key:
code :
public function wheels() {
  return $this->hasManyThrough('App\Models\Wheel', 'App\Models\Car', 'id', null, 'car_id');
}
public function wheels() {
    return $this->belongsToMany(Wheel::class, 'cars', 'id', 'id', 'car_id', 'car_id');
}
belongsTo and hasMany relationship in laravel

belongsTo and hasMany relationship in laravel


By : user3262900
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , I figuer it out actually there was two error in my code 1.I change my view from
{{$book->authId}}{{$book->authors->name}}
Laravel belongsTo / hasMany

Laravel belongsTo / hasMany


By : Erica
Date : March 29 2020, 07:55 AM
To fix this issue I`ve a problem and i need to fetch all images ( path ) of my gallery table which own a museum and the user who ownes the museum. I get the path of the images but these are not associated to the user_id who owns the museum. , You may try this:
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