在laravel中我们常常会使用join，leftjion和rightjoin进行连表查询，非常的方便，但是我今天遇到一个问题，...
在Laravel中,多个groupBy与日期可以通过使用Eloquent查询构建器来实现。Eloquent是Laravel中的ORM(对象关系映射)工具,它提供了一种简洁而强大的方式来与数据库进行交互...
I know this question has be asked before here:Laravel Grouping by Eloquent Relationshipbut the answers are from 2016 and they seem not to work in 2019. Also my question is more simple, since I only need one relation level. My Question Auserhas multipleitems. How to find how manyitemsa u...
很多人可能会想到laravel的DB原生查询了么。但是Eloquent有强大的关联,访问器修改,查询范围等等这些功能让你的代码非常简洁。 我们先写model 1.用户表user 关键字段是id用户ID,nickanem昵称,exp经验值 <?php namespace App\Models; use Illuminate\Database\Eloquent\Model; class User extends Model { protected $ta...
Eloquent::unguard(); // 重新开启「mass assignment」异常抛出功能 Eloquent::reguard();Cache1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Cache::put('key', 'value', $minutes); Cache::add('key', 'value', $minutes); ...
SELECT DISTINCT name,COUNT(name) AS total FROM tags WHERE question_id IS NOTNULLGROUP BY name ORDER BY name ASC; Here is my attempt in Eloquent ORM: $query=Tag::query();$query->orderBy('name','asc'); ->groupBy('name'); ->select(array('count(name) as total') ); ...
This method's behavior is modified when using Eloquent Collections.count()The count method returns the total number of items in the collection:$collection = collect([1, 2, 3, 4]); $collection->count(); // 4countBy()The countBy method counts the occurrences of values in the collection....
When interacting with Eloquent models, you may also use the count, sum, max, and other aggregate methods provided by the Laravel query builder. As you might expect, these methods return a scalar value instead of an Eloquent model instance:...
Eloquent 的日期筛选 Laravel 的 Eloquent Orm 提供了whereDay(),whereMonth(),whereYear(),whereDate()和whereTime()供你对日期进行筛选。简单例子: $products=Product::whereDate('created_at','2018-01-31')->get();$products=Product::whereMonth('created_at','12')->get();$products=Product::whereDay...
When interacting with Eloquent models, you may also use the count, sum, max, and other aggregate methods provided by the Laravel query builder. As you might expect, these methods return a scalar value instead of an Eloquent model instance:...