Laravel雄辩ORM保存：更新vs创建 [英] Laravel Eloquent ORM save: update vs create

问题描述

我有一张表，我试图使用 save（）方法来更新/创建行。问题是它总是创建新行。以下代码每次运行时都会提供大约12行。它们在插入之前没有唯一的 id ，而是 name 和 DateTimeCode的组合是唯一的。有没有办法使用这两个，以便laravel将它们识别为 exists（）？应该考虑使用（如果有）与创建和更新 ？

I've got a table and I'm trying to use the save() method to update/create lines. The problem is that it always create new lines. The following code gives me about 12 lines each time I run it. They don't have a unique id before inserting them but the combination of name and DateTimeCode is unique. Is there's a way to use those two in order for laravel to recognize them as exist()? Should I consider using if exist with create and update instead?

foreach ($x as $y) {
    $model = new Model;
    $model->name = ''.$name[$x];
    $model->DateTimeCode = ''.$DateTimeCode[$x];
    $model->value = ''.$value[$x];
    $model->someothervalue = ''.$someothervalue[$x];
    $model->save();
};

推荐答案

我认为在这种情况下你需要搜索在更新或创建之前：

I think that in this case you will need to search for it before updating or creating:

foreach ($x as $y) {
    $model = Model::where('name', name[$x])->where('DateTimeCode', DateTimeCode[$x])->first();

    if( ! $model)
    {
        $model = new Model;
        $model->name = ''.name[$x];
        $model->DateTimeCode = ''.DateTimeCode[$x];
    }

    $model->value = ''.$value[$x];
    $model->someothervalue = ''.$someothervalue[$x];
    $model->save();
};

这篇关于Laravel雄辩ORM保存：更新vs创建的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！