我有3个查询,我的问题是我想合并收集排序created_at
。Laravel如何排序合并收集
如何合并和排序三个查询构建器集合?
$posts1 =\DB::table('posts')
->select('posts.*', 'users.nom','pratics.titre')
->join('pratics', 'posts.pratic_id','=','pratics.id')
->join('users', 'posts.user_id','=','users.id')
->where('pratics.user_id',$id)
->orderBy('posts.id', 'desc')
->get();
$posts2 =\DB::table('posts')
->select('posts.*', 'users.nom','pratics.titre')
->join('journals', 'posts.pratic_id','=','journals.id')
->join('users', 'posts.user_id','=','users.id')
->where('journals.user_id',$id)
->orderBy('posts.id', 'desc')
->get();
$posts3 =\DB::table('posts')
->select('posts.*', 'users.nom','pratics.titre')
->join('exos', 'posts.exo_id','=','exos.id')
->join('users', 'posts.user_id','=','users.id')
->where('exos.user_id',$id)
->orderBy('posts.id', 'desc')
->get();
$posts = array_merge($posts1,$posts2, $posts3)->sortby('created_at');
我建议你'UNION'所有的查询,而不是在php中合并这3个数组。 https://laravel.com/docs/5.3/queries#unions –
这样的联合:$ posts1 = \ DB :: table('posts') - > select('posts。*','users.nom', 'pratics.titre') - > join('pratics','posts.pratic_id','=','pratics.id') - > join('users','posts.user_id','=',' users.id ') - >在哪里(' pratics.user_id”,$ id)的; $ posts2 = \ DB :: table('posts') - > select('posts。*','users.nom','pratics.titre') - > join('journals','posts.pratic_id' ,'=','journals.id') - > join('users','posts.user_id','=','users.id') - > where('journals.user_id',$ id) - >工会($ posts1) - >获得(); – nabil