如何使用Eloquent ORM在Laravel中执行批量数据库插入?

我正在处理一个XML文档,循环遍历它的元素。我想在Laravel中完成如下内容:

$sXML = download_page('http://remotepage.php&function=getItems&count=100&page=1');
$oXML = new SimpleXMLElement($sXML);
$query = "INSERT INTO tbl_item (first_name, last_name, date_added) VALUES";
foreach($oXML->results->item->item as $oEntry){
    $query .=  "('" . $oEntry->firstname . "', '" . $oEntry->lastname . "', '" . date("Y-m-d H:i:s") . "'),";
}
mysql_query($query);

但我得到以下错误。

SQLSTATE[HY093]:无效的参数号:名称参数和位置参数混合。


当前回答

对于类别关系插入,我遇到了同样的问题,但我不知道,除了在我的雄辩模型中,我使用Self()在foreach中有一个相同类的实例来记录多个保存和抓取id。

foreach($arCategories as $v)
{                
    if($v>0){
        $obj = new Self(); // this is to have new instance of own
        $obj->page_id = $page_id;
        $obj->category_id = $v;
        $obj->save();
    }
}

如果没有“$obj = new Self()”,它只保存单个记录(当$obj为$this时)

其他回答

不管是谁在读这篇文章,请检查createMany()方法。

/**
 * Create a Collection of new instances of the related model.
 *
 * @param  array  $records
 * @return \Illuminate\Database\Eloquent\Collection
 */
public function createMany(array $records)
{
    $instances = $this->related->newCollection();

    foreach ($records as $record) {
        $instances->push($this->create($record));
    }

    return $instances;
}

我搜索了很多次,最后使用了如下所示的自定义时间戳:

$now = Carbon::now()->toDateTimeString();
Model::insert([
    ['name'=>'Foo', 'created_at'=>$now, 'updated_at'=>$now],
    ['name'=>'Bar', 'created_at'=>$now, 'updated_at'=>$now],
    ['name'=>'Baz', 'created_at'=>$now, 'updated_at'=>$now],
    ..................................
]);

也许更Laravel的解决这个问题的方法是使用一个集合,并利用时间戳将它与模型循环插入。

<?php

use App\Continent;
use Illuminate\Database\Seeder;

class InitialSeeder extends Seeder
{
    /**
     * Run the database seeds.
     *
     * @return void
     */
    public function run()
    {
        collect([
            ['name' => 'América'],
            ['name' => 'África'],
            ['name' => 'Europa'],
            ['name' => 'Asia'],
            ['name' => 'Oceanía'],
        ])->each(function ($item, $key) {
            Continent::forceCreate($item);
        });
    }
}

编辑:

抱歉我误会了。对于批量插入,这可能会有帮助,也许有了这个,你可以做出很好的种子和优化他们一点。

<?php

use App\Continent;
use Carbon\Carbon;
use Illuminate\Database\Seeder;

class InitialSeeder extends Seeder
{
    /**
     * Run the database seeds.
     *
     * @return void
     */
    public function run()
    {
        $timestamp = Carbon::now();
        $password = bcrypt('secret');

        $continents = [
            [
                'name' => 'América'
                'password' => $password,
                'created_at' => $timestamp,
                'updated_at' => $timestamp,
            ],
            [
                'name' => 'África'
                'password' => $password,
                'created_at' => $timestamp,
                'updated_at' => $timestamp,
            ],
            [
                'name' => 'Europa'
                'password' => $password,
                'created_at' => $timestamp,
                'updated_at' => $timestamp,
            ],
            [
                'name' => 'Asia'
                'password' => $password,
                'created_at' => $timestamp,
                'updated_at' => $timestamp,
            ],
            [
                'name' => 'Oceanía'
                'password' => $password,
                'created_at' => $timestamp,
                'updated_at' => $timestamp,
            ],
        ];

        Continent::insert($continents);
    }
}

对于类别关系插入,我遇到了同样的问题,但我不知道,除了在我的雄辩模型中,我使用Self()在foreach中有一个相同类的实例来记录多个保存和抓取id。

foreach($arCategories as $v)
{                
    if($v>0){
        $obj = new Self(); // this is to have new instance of own
        $obj->page_id = $page_id;
        $obj->category_id = $v;
        $obj->save();
    }
}

如果没有“$obj = new Self()”,它只保存单个记录(当$obj为$this时)

你可以使用Eloquent::insert()。

例如:

$data = [
    ['name'=>'Coder 1', 'rep'=>'4096'],
    ['name'=>'Coder 2', 'rep'=>'2048'],
    //...
];

Coder::insert($data);