CODEWITHSUNDEEP
phpexceptionsymfonydoctrine-ormroutes
lokiloq
lokiloq

Reputation: 304

How to catch ParamConverter exceptions in Symfony2?

Here is the exception I got:

No result was found for query although at least one row was expected.

I am basically getting that exception when a user id is not found in database. Here is what my route looks like:

localhost/../user/18

and the code in my controller:

public function showAction(User $user){
    // .. 
}

I know I can use the kernel event exception to handle this, but is there an easier way to catch an exception generated by the ParamConverter?

Upvotes: 7

Views: 8736

Answers (2)

Amine
Amine

Reputation: 271

You can create your user ParamConverter by implementing ParamConverterInterface and inside it, create methods you can use as a custom exception or do other processing.

This a good exemple of what you want to create Custom ParamConverter

Upvotes: 2

Yury Tolochko
Yury Tolochko

Reputation: 509

In some cases it's useful to throw exception manually if object not found. You can tell action skip throw exception if entity not found by adding default value to param.

Example:

public function showUser(User $user = null) {
    if (empty($user)) {
        throw new CustomExceptionYouWant();
    }
    ...
}

Upvotes: 26

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