fix(doctrine): fix error when identifier is not 'id'

[GaryPEGEOT]

Q	A
Branch?	3.2

When your entity identifier is not named id, your uriVariables (if not customized) will contains something like ["id" =>"THE_CODE"], but Doctine will throw if you send an array as it expect something like ["nameOfIdentifer" =>"THE_CODE"]

By using the identifier directly, we let doctrine figure out the rest

[soyuka]

There's an array_key_exists how do you go through there without any id?

[GaryPEGEOT]

@soyuka in my case, the class doesn't have any id property (identifier is named sku). I've added #[ApiProperty(identifier: true)] on top of my property, but for some reason identifiers contains sku and an imaginary id prop. So I did:

 new Get(
            uriVariables: ['id' => new Link('id', fromClass: MyClass::class, identifiers: ['sku'])],
           // ...
        ),

[stale[bot]]

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