laravel . How can I judge the results of ORM

Question

example:

$example = new Model();
$example->name = 'abc';
$example->save();

How can I judge the results of ORM? Like this?

if($example->save){
    ...//do someting
}else{
    ...//do someting
}

But,I think it's wrong.Because,$example->save() will return an object。So,theelse{} can't run forever.How can I judge the results of ORM?

Thanks for everyone.

Are you trying to check whether model is saved or there is an error? If yes then you can place this block in try-catch block. — Shalu Singhal, May 23 '16 at 07:14
Possible duplicate of [Check if laravel model got saved or query got executed](http://stackoverflow.com/questions/27877948/check-if-laravel-model-got-saved-or-query-got-executed) — Charlotte Dunois, May 23 '16 at 07:17
@ShaluSinghal Only recently started to learn,I don't know what I should do next. — SoulKeep, May 23 '16 at 07:19
@ShaluSinghal if($example),the $example should be a boolean. In ORM ,save() will return an obj.Can I check the result like this: if($example->save()){}else{}. — SoulKeep, May 23 '16 at 07:30
@SoulKeep `save()` returns a boolean. You can see for yourself in the [source code](https://github.com/laravel/framework/blob/5.2/src/Illuminate/Database/Eloquent/Model.php#L1453-L1489). Why do you think it returns an object? — patricus, May 23 '16 at 07:32
@patricus Thanks,I have set a uniqueness field in my database.So,I get an error but not an correct obj. — SoulKeep, May 23 '16 at 07:48
@SoulKeep Laravel will throw an exception for that. You'll need to wrap your save it a `try`/`catch` block in order to handle that. — patricus, May 23 '16 at 07:51
@patricus Thanks.Can I filter the same request in validation? — SoulKeep, May 23 '16 at 07:55

score 1 · Accepted Answer · answered May 23 '16 at 07:28

1

save() will return a boolean. So you can either do:

$saved = $example->save();

if(!$saved){
    // something
}

Or directly save in the if:

if(!$example->save()){
    // something
}

answered May 23 '16 at 07:28

Yasin Patel

5,624
8
31
53

Alexey Mezenin · Answer 2 · 2016-05-23T07:32:57.963

You can use insert() method which returns true or false:

$inserted = Model::insert(['name' => 'abc']);
    ...//do someting
if($inserted){

}else{
    ...//do someting else
}

Or, you could use try... catch clause:

    try
    {
        Model::insert(['name' => 'abc']);

        ...//do someting
    }
    catch(\Exception $e)
    {
        ...//do someting else
    }

You can try to do this:

$example = new Model();
$example->name = 'abc';
$example->save();
if ($example) { ... }

But it's not safe, because you can get error in this part and you'll not be able to catch it:

$example->name = 'abc';

laravel . How can I judge the results of ORM

2 Answers2