Thanks for creating and sharing this repo!

I'm trying this on Symfony 5.4 with PHP 8.1. While the application seems to work, I've got problems in my test suite. This is what I get:

In MySQLPlatform.php line 1177:
                                                                                                           
  str_replace(): Argument #3 ($subject) must be of type array|string, App\Model\Enum\DocumentStatus given  
                                                                                                          

It's the \Doctrine\DBAL\Platforms\MySQLPlatform::quoteStringLiteral method.

Any idea how we can fix this?

The following deprecation warnings are reported by PHP when using the library:

User Deprecated: Method "Doctrine\DBAL\Types\Type::convertToDatabaseValue()"
might add "mixed" as a native return type declaration in the future. Do the 
same in child class "BenTools\Doctrine\NativeEnums\Type\NativeEnum" now to 
avoid errors or add an explicit @return annotation to suppress this message.

User Deprecated: Method "Doctrine\DBAL\Types\Type::requiresSQLCommentHint()"
might add "bool" as a native return type declaration in the future. Do the
same in child class "BenTools\Doctrine\NativeEnums\Type\NativeEnum" now to
avoid errors or add an explicit @return annotation to suppress this message.

Adding the return types shouldn't cause any trouble, I suppose.

Example :

Creating the following initial table third_party :

        'CREATE TABLE third_party (
              id SERIAL NOT NULL, 
              name VARCHAR(255) NOT NULL, 
              type VARCHAR(255) NOT NULL, 
              address VARCHAR(1024) DEFAULT NULL, 
              post_code VARCHAR(10) DEFAULT NULL, 
              city VARCHAR(128) DEFAULT NULL, 
              country VARCHAR(255) NOT NULL, 
              PRIMARY KEY(id))
          ');

Where type and country are both of them BackedEnum. If I execute this migration, and regenarate a diff migration, it will always reconfigure this 2 columns definition :

     ALTER TABLE third_party ALTER type TYPE VARCHAR(255);
     ALTER TABLE third_party ALTER type DROP DEFAULT;
     ALTER TABLE third_party ALTER country TYPE VARCHAR(255);
     ALTER TABLE third_party ALTER country DROP DEFAULT;

By searching on the migrations packages, the changes seems to be detected like this (for country) :

Before change :

^ Doctrine\DBAL\Schema\Column^ {#347
  #_name: "country"
  #_namespace: null
  #_quoted: false
  #_type: Doctrine\DBAL\Types\StringType^ {#123}
  #_length: 255
  #_precision: 10
  #_scale: 0
  #_unsigned: false
  #_fixed: false
  #_notnull: true
  #_default: null
  #_autoincrement: false
  #_platformOptions: []
  #_columnDefinition: null
  #_comment: null
  #_customSchemaOptions: []
}

After change :

Doctrine\DBAL\Schema\Column^ {#302
  #_name: "country"
  #_namespace: null
  #_quoted: false
  #_type: BenTools\Doctrine\NativeEnums\Type\NativeEnum^ {#115
    -name: "App\Enum\CountryEnum"
    -class: "App\Enum\CountryEnum"
    -type: BenTools\Doctrine\NativeEnums\Type\BackedEnumType^ {#116
      +name: "STRING"
    }
  }
  #_length: null
  #_precision: 10
  #_scale: 0
  #_unsigned: false
  #_fixed: false
  #_notnull: true
  #_default: null
  #_autoincrement: false
  #_platformOptions: array:1 [
    "version" => false
  ]
  #_columnDefinition: null
  #_comment: null
  #_customSchemaOptions: []
}

I'm trying to find a solution right now.