we-promise/sure · error · Thor::Error

Invalid field type '#{field[:type]}' for #{field[:name]}. Mu

Error message

Invalid field type '#{field[:type]}' for #{field[:name]}. Must be one of: text, string, integer, boolean

What it means

Raised as Thor::Error by the provider global generator (lib/generators/provider/global/global_generator.rb:48) when a credential field's declared type is not one of text, string, integer, boolean. Same restriction as the family generator: the migration template can only emit those four types, so types like datetime, json, or decimal are rejected during validate_fields, before any file is generated.

Source

Thrown at lib/generators/provider/global/global_generator.rb:48

  include Rails::Generators::Migration

  source_root File.expand_path("templates", __dir__)

  argument :fields, type: :array, default: [], banner: "field:type[:secret][:default=value] field:type[:secret]"

  class_option :skip_migration, type: :boolean, default: false, desc: "Skip generating migration"
  class_option :skip_models, type: :boolean, default: false, desc: "Skip generating models"
  class_option :skip_adapter, type: :boolean, default: false, desc: "Skip generating adapter"

  def validate_fields
    if parsed_fields.empty?
      raise Thor::Error, "At least one credential field is required. Example: api_key:text:secret"
    end

    # Validate field types
    parsed_fields.each do |field|
      unless %w[text string integer boolean].include?(field[:type])
        raise Thor::Error, "Invalid field type '#{field[:type]}' for #{field[:name]}. Must be one of: text, string, integer, boolean"
      end
    end
  end

  def generate_migration
    return if options[:skip_migration]

    migration_template "global_migration.rb.tt",
                       "db/migrate/create_#{table_name}_and_accounts.rb",
                       migration_version: migration_version
  end

  def create_models
    return if options[:skip_models]

    # Create item model
    item_model_path = "app/models/#{file_name}_item.rb"
    if File.exist?(item_model_path)

View on GitHub (pinned to e69894adb9)

Solutions

1. Use text for blobs/JSON keys and string for timestamps; parse in the model code.
2. Or generate with valid types and hand-edit the migration plus model to refine the column type.
3. Validation runs first, so a failed invocation leaves the tree clean — just re-run with corrected args.

Example fix

// before
rails g provider:global acme keyfile:json

// after
rails g provider:global acme keyfile:text:secret

ALLOWED = %w[text string integer boolean]
fields.each { |f| name, type = f.split(':'); raise "#{name}: #{type} invalid" unless ALLOWED.include?(type) }

type = arg.split(':')[1]
%w[text string integer boolean].include?(type)

begin
  Rails::Generators.invoke 'provider:global', args
rescue Thor::Error => e
  # correct the named field's type to text/string/integer/boolean and re-run
end

When it happens

Trigger: Running rails g provider:global acme token:json expires:datetime secret:decimal — any :type suffix outside the allowed four.

Common situations: Modeling a provider credential that is naturally structured (JSON keyfile) or time-based (token expiry); forgetting the :secret modifier is separate from the type.

Related errors

• Invalid field type '#{field[:type]}' for #{field[:name]}. Mu
• #{reserved.join(', ')} #{reserved.one? ? 'is' : 'are'} alrea
• At least one credential field is required. Example: api_key:
• record_not_found
• validation_failed

AI-assisted analysis of we-promise/sure@e69894adb9 (2026-08-21). Data as JSON: /api/errors/e79563e427ba7a66. Report an issue: GitHub.