将两个不同的对象放在一起

如何解决将两个不同的对象放在一起

我有 $campus_groups 来自 CampusGroup

$campus_groups = CampusGroup::where('campus_id',$campus_id)->get();

有

[
    {"id":1,"campus_id":1,"group_id":1,"created_at":"2021-03-15T08:15:27.000000Z","updated_at":"2021-03-15T08:15:27.000000Z"},{"id":2,"group_id":2,"created_at":"2021-03-15T08:15:37.000000Z","updated_at":"2021-03-15T08:15:37.000000Z"},{"id":3,"group_id":5,"created_at":"2021-03-15T08:16:49.000000Z","updated_at":"2021-03-15T08:16:49.000000Z"}
]

和$campus_org_groups来自CampusOrganizationGroup

$campus_org_groups = CampusOrganizationGroup::where('campus_id',"campus_organization_id":1,"group_id":3,"created_at":"2021-03-15T08:15:50.000000Z","updated_at":"2021-03-15T08:15:50.000000Z"},"group_id":4,"created_at":"2021-03-15T08:15:55.000000Z","updated_at":"2021-03-15T08:15:55.000000Z"},"group_id":6,"created_at":"2021-03-15T08:17:28.000000Z","updated_at":"2021-03-15T08:17:28.000000Z"}
]

并希望像这样将两者结合在一起（重要的键是 group_id，如果 campus_organization_id 被排除在外我也可以）

[
    {"id":1,"updated_at":"2021-03-15T08:16:49.000000Z"},{"id":1,"updated_at":"2021-03-15T08:17:28.000000Z"}
]

---

如果我merge他们

$obj_merged = $campus_groups->merge($campus_org_groups);

这就是我得到的

[
    {"id":1,"updated_at":"2021-03-15T08:17:28.000000Z"}
]

如果我union他们

$obj_merged = $campus_groups->union($campus_org_groups);

这就是我得到的

[
    {"id":1,"updated_at":"2021-03-15T08:16:49.000000Z"}
]

解决方法

我变了

$campus_groups = CampusGroup::where('campus_id',$campus_id)->get();
$campus_org_groups = CampusOrganizationGroup::where('campus_id',$campus_id)->get();

到

$campus_groups = collect(CampusGroup::where('campus_id',$campus_id)->get(['id','campus_id','group_id','created_at','updated_at'])); 
$campus_org_groups = collect(CampusOrganizationGroup::where('campus_id','updated_at']));

注意 collect() 的用法以及我真正想要的字段的规范（省略 campus_organization_id）。然后，初始合并

$obj_merged = $campus_groups->merge($campus_org_groups);

将返回所需的输出

[
    {"id":1,"campus_id":1,"group_id":1,"created_at":"2021-03-15T08:15:27.000000Z","updated_at":"2021-03-15T08:15:27.000000Z"},{"id":2,"group_id":2,"created_at":"2021-03-15T08:15:37.000000Z","updated_at":"2021-03-15T08:15:37.000000Z"},{"id":3,"group_id":5,"created_at":"2021-03-15T08:16:49.000000Z","updated_at":"2021-03-15T08:16:49.000000Z"},{"id":1,"group_id":3,"created_at":"2021-03-15T08:15:50.000000Z","updated_at":"2021-03-15T08:15:50.000000Z"},"group_id":4,"created_at":"2021-03-15T08:15:55.000000Z","updated_at":"2021-03-15T08:15:55.000000Z"},"group_id":6,"created_at":"2021-03-15T08:17:28.000000Z","updated_at":"2021-03-15T08:17:28.000000Z"}
]

,

你能测试一下这个解决方案吗：

$obj_merged = (object) array_merge((array) $campus_groups,(array) $campus_org_groups);

,

这是非常简单的操作，array_merge应该可以工作

<?php $campus_groups = [
['id' => 1,'campus_id'=> 1,'group_id'=> 1],['id' => 2,'group_id'=> 2],['id' => 3,'group_id'=> 5],];

$campus_org_groups = [
['id' => 1,'group_id'=> 3,'campus_organization_id' => 1],'group_id'=> 4,'group_id'=> 5,];

print_r(array_merge($campus_groups,$campus_org_groups));

https://repl.it/@technoknol/StainedHealthyBlogclient

,

我对 array_push (doc) 做了一些简单的事情：

foreach($array2 as $val){    
    array_push($array1,$val);
}

使用以下代码测试 here：

<?php

class newObject{
    public $id;
    public $campus_id;
    public $group_id;
    public $created_at;
    public $updated_at;
    
    function create($id,$campus_id,$group_id,$created_at,$updated_at){
        $this->id = $id;
        $this->campus_id = $campus_id;
        $this->group_id = $group_id;
        $this->created_at = $created_at;
        $this->updated_at = $updated_at;
        
    }
    
}

class newObject2{
    public $id;
    public $campus_id;
    public $campus_organization_id;
    public $group_id;
    public $created_at;
    public $updated_at;
    
    function create($id,$campus_organization_id,$updated_at){
        $this->id = $id;
        $this->campus_id = $campus_id;
        $this->campus_organization_id = $campus_organization_id;
        $this->group_id = $group_id;
        $this->created_at = $created_at;
        $this->updated_at = $updated_at;
        
    }
    
}

$newObject = new newObject;
$newObject->create("1","1","2021-03-15T08:15:27.000000Z","2021-03-15T08:15:27.000000Z");

$newObjectA = new newObject;
$newObjectA->create("2","2021-03-15T08:15:27.000000Z");

$array1 = [$newObject,$newObjectA];

$newObject2 = new newObject2;
$newObject2->create("1","3","2021-03-15T08:15:50.000000Z","2021-03-15T08:15:50.000000Z");

$newObject2A = new newObject2;
$newObject2A->create("2","2021-03-15T08:15:50.000000Z");

$array2 = [$newObject2,$newObject2A];

foreach($array2 as $val){
    
    array_push($array1,$val);
}

var_dump($array1);

输出最终：

array(4) {
  [0]=>
  object(newObject)#1 (5) {
    ["id"]=>
    string(1) "1"
    ["campus_id"]=>
    string(1) "1"
    ["group_id"]=>
    string(1) "1"
    ["created_at"]=>
    string(27) "2021-03-15T08:15:27.000000Z"
    ["updated_at"]=>
    string(27) "2021-03-15T08:15:27.000000Z"
  }
  [1]=>
  object(newObject)#2 (5) {
    ["id"]=>
    string(1) "2"
    ["campus_id"]=>
    string(1) "1"
    ["group_id"]=>
    string(1) "1"
    ["created_at"]=>
    string(27) "2021-03-15T08:15:27.000000Z"
    ["updated_at"]=>
    string(27) "2021-03-15T08:15:27.000000Z"
  }
  [2]=>
  object(newObject2)#3 (6) {
    ["id"]=>
    string(1) "1"
    ["campus_id"]=>
    string(1) "1"
    ["campus_organization_id"]=>
    string(1) "1"
    ["group_id"]=>
    string(1) "3"
    ["created_at"]=>
    string(27) "2021-03-15T08:15:50.000000Z"
    ["updated_at"]=>
    string(27) "2021-03-15T08:15:50.000000Z"
  }
  [3]=>
  object(newObject2)#4 (6) {
    ["id"]=>
    string(1) "2"
    ["campus_id"]=>
    string(1) "1"
    ["campus_organization_id"]=>
    string(1) "1"
    ["group_id"]=>
    string(1) "3"
    ["created_at"]=>
    string(27) "2021-03-15T08:15:50.000000Z"
    ["updated_at"]=>
    string(27) "2021-03-15T08:15:50.000000Z"
  }
}