Class: JsonSchemaValidator

Inherits:
ActiveModel::EachValidator
  • Object
show all
Defined in:
app/validators/json_schema_validator.rb

Overview

This Rails validator checks that an attribute is either a valid JSON schema or that it complies with a given schema.

Constant Summary collapse

NAMED_SCHEMA_VERSIONS = 
i[draft201909 draft202012 draft4 draft6 draft7 openapi30 openapi31].freeze

Instance Method Summary collapse

Instance Method Details

#validate_each(record, attribute, value) ⇒ Object 



8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
 
# File 'app/validators/json_schema_validator.rb', line 8

def validate_each(record, attribute, value)
  # Convert value to hash if it's a string
  json_data = value.is_a?(String) ? JSON.parse(value) : value

  # Get the schema from options, evaluating lambda if provided
  schema = resolve_schema(record, attribute, value)

  # Initialize JSONSchemer with proper handling based on schema type
  schemer = json_schemer(schema)

  # Collect validation errors
  validation_errors = schemer.validate(json_data).to_a

  # Add errors to the record using json_schemer's built-in I18n support
  validation_errors.each do |error|
    record.errors.add(attribute, error['error'])
  end
rescue JSON::ParserError
  record.errors.add(attribute, :invalid_json)
end