Class: LcpRuby::ModelFactory::JsonTypeApplicator

Inherits:
Object
  • Object
show all
Defined in:
lib/lcp_ruby/model_factory/json_type_applicator.rb

Overview

Registers an explicit ActiveRecord ‘:json` attribute type for json-backed fields.

PostgreSQL (jsonb) and SQLite (json) are reflected correctly by their adapters, but MariaDB reports JSON columns as ‘longtext` — so without an explicit type ActiveRecord treats the column as text and serializes a Hash via Ruby’s ‘Hash#to_s` (`“k”=>“v”`). That is invalid JSON and violates MariaDB’s implicit ‘json_valid()` CHECK constraint on insert. Declaring the attribute type makes Hash<->JSON (de)serialization adapter-agnostic.

Array fields are also json-backed on non-PostgreSQL adapters, but ArrayTypeApplicator already registers their own ArrayType, so they are excluded here. The custom_data column (custom fields) is handled separately in CustomFields::Applicator since it is not part of ‘model_definition.fields`.

Instance Method Summary collapse

Constructor Details

#initialize(model_class, model_definition) ⇒ JsonTypeApplicator

Returns a new instance of JsonTypeApplicator.



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# File 'lib/lcp_ruby/model_factory/json_type_applicator.rb', line 18

def initialize(model_class, model_definition)
  @model_class = model_class
  @model_definition = model_definition
end

Instance Method Details

#apply! ⇒ Object 



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# File 'lib/lcp_ruby/model_factory/json_type_applicator.rb', line 23

def apply!
  @model_definition.fields.each do |field|
    next if field.array?
    next unless field.column_type == LcpRuby.json_column_type

    options = {}
    options[:default] = field.default unless field.default.nil?
    @model_class.attribute field.name.to_sym, :json, **options
  end
end