Append attributes to query when building a query. from HasAttributes $this setAppends(array $appends) Set the accessors to append to model arrays. from HasAttributes bool hasAppended(string $attribute) Return whether the accessor attribute has been appended. from HasAttributes array getMutated...
User::query()->where('id',2); 如果要返回表中不存在的字段,有没有快捷方法? ORM模型的, appends 属性可以解决这个问题。 classUserextendsModel{protected$appends=['is_breakfirst'];publicfunctiongetIsBreakFirstAttribute(){return$this->attributes['name']=='早餐';}} 尝试一下单行为控制器? 场景?比如...
$users = User::with(array('posts' => function($query) { $query->where('title', 'like', '%first%'); }))->get(); 在这个例子中,我们预先加载用户的文章,但只限于文章的 title 字段中包含单词 "first" 的文章:延迟预先加载从一个已存在的模型中直接预先加载相关的模型也是可能的。这在动态的...
<?php // The updated_at column will not be updated Post::withoutTimestamps(fn () => $post->increment(['reads'])); Tip #40 💡: Random Ordering Did you know that Laravel comes with the "inRandomOrder" method, which sorts query results randomly? 🚀 $randomUser = DB::table('user...
Now, when you call the delete method on the model, the deleted_at column will be set to the current timestamp. When querying a model that uses soft deletes, the "deleted" models will not be included in query results.Forcing Soft Deleted Models Into ResultsTo force soft deleted models to...
namespace Illuminate\Database\Eloquent;classBuilder{publicfunction__construct(QueryBuilder $query){$this->query=$query;}publicfunctionwhere($column,$operator=null,$value=null,$boolean='and'){if($columninstanceofClosure){$query=$this->model->newQueryWithoutScopes();$column($query);$this->query-...
protected function performUpdate(Builder $query, array $options = []) { if($this->timestamps && array_get($options, 'timestamps', true)) { $this->updateTimestamps(); } $product = Product::find($id); $product->updated_at = '2015 -01-01 10:00:00'; ...
分页时传递GET参数 $users->appends(Request::except('page'))->links() 监听SQL DB::enableQueryLog(); 执行语句 dd(DB::getQueryLog()); TINKER 使用laravel提供的tinker 可以方便的在命令行进行调试。 进入tinker环境 php artisan tinker 新增用户练习 >>> use \App\User ...
If you need to process a lot (thousands) of Eloquent records, using the chunk command will allow you to do without eating all of your RAM:User::chunk(200, function($users){ foreach ($users as $user) { // }});The first argument passed to the method is the number of records you ...
'SELECT s.*, (CASE WHEN f.id IS NULL THEN 0 ELSE 1 END) as favorites FROM songs s LEFT ...