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Class: ActiveRecord::ModelSchema::SchemaContext::Attributes

Do not use. This class is for internal use only.
Relationships & Source Files
Inherits: Object
Defined in: activerecord/lib/active_record/model_schema/schema_context.rb

Overview

Attributes owns a model's attribute-derived state: attribute defaults, attribute types, and column defaults.

Class Method Summary

Instance Attribute Summary

Instance Method Summary

Constructor Details

.new(context, defaults) ⇒ Attributes

Built up front, since shareable instances are frozen along with their context.

[ GitHub ] 

  


# File 'activerecord/lib/active_record/model_schema/schema_context.rb', line 32



def initialize(context, defaults)
  @context = context
  @defaults = defaults
  @types = defaults.cast_types.tap do |hash|
    hash.default = ActiveModel::Type.default_value
  end
  default_keys = DatabaseDefaultKeys.new(context.model_class.primary_key_definition, context.columns_hash)
  @builder = ActiveModel::AttributeSet::Builder.new(@types, defaults, default_keys)
  @column_defaults = defaults.to_hash.freeze if defaults.read_only?
end


  







Instance Attribute Details



  

    #builder   (readonly)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/model_schema/schema_context.rb', line 28



attr_reader :context, :defaults, :types, :builder


  








  

    #context   (readonly)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/model_schema/schema_context.rb', line 28



attr_reader :context, :defaults, :types, :builder


  








  

    #defaults   (readonly)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/model_schema/schema_context.rb', line 28



attr_reader :context, :defaults, :types, :builder


  








  

    #types   (readonly)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/model_schema/schema_context.rb', line 28



attr_reader :context, :defaults, :types, :builder


  







Instance Method Details



  

    #column_defaults  
  



  

    
Lazy otherwise, since evaluating them calls proc defaults.

  



  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/model_schema/schema_context.rb', line 44



def column_defaults
  @column_defaults ||= defaults.deep_dup.to_hash.freeze
end