patterProperties with int key

[sakarikl]

preg_match(): Argument #2 ($subject) must be of type string, int given

string cast seems to be missing from src/JsonSchema/Constraints/ObjectConstraint.php@69

'patternProperties' => [ '^[0-9]+$' => [ 'type' => 'object', 'additionalProperties' => false,

[DannyvdSluijs]

@sakarikl thank for the report. Could you also add some reproduction steps e.g. a schema and json value?

[sakarikl]

$json = '{
"10": 123,
"101": 5
}
';

$schema = [
    'type' => 'object',
    'patternProperties' => [
        '^[0-9]+$' => ['type' => 'integer']
    ],
];

$data = json_decode($json, true);
$validator = new JsonSchema\Validator();
$validator->validate(
    $data,
    $schema,
    Constraint::CHECK_MODE_COERCE_TYPES | Constraint::CHECK_MODE_APPLY_DEFAULTS | Constraint::CHECK_MODE_EXCEPTIONS | Constraint::CHECK_MODE_TYPE_CAST,
);

$validator->isValid();

This reproduces error. Sorry meant to put this to original post :)

[DannyvdSluijs]

Based on your code I'm getting the same error. What I noticed however is the line $data = json_decode($json, true); where the boolean true turns the return value into an associative array, which is something that doesn't exist in JSON.

This causes issues down the line like with the ObjectConstraint. A fix for you would be to remove the boolean true and get the stdClass returned instead of the associative array. The same applies to the schema and object would better to pass this as an object.

My suggested code would be:

$data = json_decode(
<<<'JSON'
{
  "10": 123,
  "101": 5 
}
JSON
);

$schema = json_decode(<<<'JSON'
{
  "type": "object",
  "patternProperties": {
    "^[0-9]+$": {
      "type": "integer"
    }
  }
}
JSON
);

$validator = new Validator();
$validator->validate(
    $data,
    $schema,
    Constraint::CHECK_MODE_COERCE_TYPES | Constraint::CHECK_MODE_APPLY_DEFAULTS | Constraint::CHECK_MODE_EXCEPTIONS | Constraint::CHECK_MODE_TYPE_CAST,
);

$validator->isValid();

if ($validator->isValid()) {
    echo "The supplied JSON validates against the schema.\n";
} else {
    echo "JSON does not validate. Violations:\n";
    foreach ($validator->getErrors() as $error) {
        printf("[%s] %s\n", $error['property'], $error['message']);
    }
}

[DannyvdSluijs]

Seeing the thumbs up as a answer to your problem. Closing the issue for now, feel free to reopen if needed,

[sakarikl]

I can't use that workaround but I can live with that by making a patch for myself.