在Model 基类中定义一个范围查询(或者使用 Trait) classBaseModelextends\Eloquent{publicfunctionscopeWithOnly($query,$relation,Array$columns) {return$query->with([$relation=>function($query)use($columns){$query->select(array_merge(['id'],$columns)); }]); } } 在我们普通的 Model 类都继承基类:...
class BaseModel extends Model{ public function scopeWithCertain($query, $relation, Array $columns) { return $query->with([$relation => function ($query) use ($columns){ $query->select(array_merge([$this->primaryKey], $columns)); }]); } } 在我们普通的 Model 类都继承基类: <?php na...
Post::with('methodUser')->get(); 方法三: 在Model 基类中定义一个范围查询(或者使用 Trait) class BaseModel extends \Eloquent { public function scopeWithOnly($query, $relation, array $columns) { return $query->with([$relation => function ($query) use ($columns) { $query->select(array_m...
1 class BaseModel extends \Eloquent{ 2 public function scopeWithOnly($query, $relation, Array $columns) 3 { 4 return $query->with([$relation => function ($query) use ($columns){ 5 $query->select(array_merge(['id'], $columns)); 6 }]); 7 } 8 } 在我们普通的 Model 类都继承基...
但我想要的是…select * from `posts` select id,username from `users` where `users`.`id` in (<1>, <2>) 当我使用…Post::with('user')->get(array('columns'...)); 它只返回第一个表中的列。我想要使用第二个表中的 with() 的特定列。我怎样才能做到这一点?原文...
So if you selected columns without the foreign_key in a closure, the relationship result will be empty: Order::with(['orderItems' => function($query) { // $query->sum('quantity'); $query->select('quantity'); // without `order_id` } ])->get(); #=> result: [{ id: 1,...
Better use pluck(), solo or optionally in combination with select - if you want specific columns. TableName::select('username')->where('id', 1)->pluck('username'); or TableName::where('id', 1)->pluck('username'); //that would return collection consisting of only username values ...
foo', 2 => 'bar', 'val' => 'Option name']); 或者从api中获取选项列表： $form->select...
众所周知 Laravel 是 PHP 开发项目最优美的框架之一，尤其是 Eloquent 对数据库的操作提供了特别多的...
which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode = only_full_group_by (SQL: select `sns_users` . `md_img` , `phone` , `sns_users` . `id` from `sns_blogs` left join `sns_users` ...