error in list if the target object return null about sonataadminbundle

[stof]

Check your entity: you are not returning a string in the __toString method of your class which is invalid. It has nothing to do with any bundle but with your own code.

[saptaru]

Hi,
This is what I actually have in my entity :

MyEntity:
public function getSchemaType() {
// if($this->schemaType){
return $this->schemaType;
// }else{
// return 'none';
// }
}

SchemaTypes Entity:
public function __toString() {
return $this->schemaName;
}

If myEntity has a schemaType defined then the name is present in my Admin List otherwise the catchable fatal error is present.

The same thing happens for MyEntity that is nested and doesn't have a parent define ( I am trying to show the parent name in my list ).

One more thing, may this be important, if I uncomment the code above from getSchemaType() I get an error :
Item "id" for "none" does not exist in SonataAdminBundle:CRUD:list_orm_many_to_one.html.twig at line 16

Thank you for your time !

[stof]

__toString fails because you return null when the property is not initialized.

what is $this->schemaType ? The property mapped for the relation ? In this case, it is normal that it fails. An empty relation returns null (as there is nothing for this relation), not 'none' which is a PHP string.

[saptaru]

Yes it is the property mapped for the relation:

/**
* @Orm:ManyToOne(targetEntity="SchemaTypes")
* @Orm:JoinColumn(name="schematype_id", referencedColumnName="id")
*/
private $schemaType;

And the schemaName is the title of the SchemaType which I want it displayed.
Here is the code I have in my MyEntityAdmin class for the $list :

protected $list = array(
'title',
'schemaType',
//..
);

How can I avoid having these errors, considering that I want to display something custom like 'none' without/or with a custom url where no relation is present ?

Cheers,
Cezar

[stof]

don't return 'none' in the getSchemaType() method. Return it in __toString when $this->schemaType is null

[saptaru]

Thanks!