laravel where has
use Illuminate\Database\Eloquent\Builder;
// Retrieve posts with at least one comment containing words like foo%...
$posts = App\Post::whereHas('comments', function (Builder $query) {
$query->where('content', 'like', 'foo%');
})->get();
// Retrieve posts with at least ten comments containing words like foo%...
$posts = App\Post::whereHas('comments', function (Builder $query) {
$query->where('content', 'like', 'foo%');
}, '>=', 10)->get();one to many laravel
For example, a blog post may have an infinite number of comments. And a single
comment belongs to only a single post
class Post extends Model
{
public function comments()
{
return $this->hasMany('App\Models\Comment');
}
}
class Comment extends Model
{
public function post()
{
return $this->belongsTo('App\Models\Post');
}
}whereHas site:https://laravel.com/docs/
use Illuminate\Database\Eloquent\Builder;
// Retrieve posts with at least one comment containing words like code%...
$posts = Post::whereHas('comments', function (Builder $query) {
$query->where('content', 'like', 'code%');
})->get();
// Retrieve posts with at least ten comments containing words like code%...
$posts = Post::whereHas('comments', function (Builder $query) {
$query->where('content', 'like', 'code%');
}, '>=', 10)->get();laravel one to many relationship
<?php
namespace App\Models;
use Illuminate\Database\Eloquent\Model;
class Post extends Model
{
/**
* Get the comments for the blog post.
*/
public function comments()
{
return $this->hasMany(Comment::class);
}
}one to many laravel
Suppose you have a Post model with a hasMany relationship with Comment. You may insert a Comment object related to a post by doing the following:
$post = Post::find(1);
$commentToAdd = new Comment(['message' => 'This is a comment.']);
$post->comments()->save($commentToAdd);Copyright © 2021 Codeinu
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