Class: ActiveRecordSchemaScrapper::Associations

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/active_record_schema_scrapper/associations.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(model:, types: self.class.types) ⇒ Associations

Returns a new instance of Associations.



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# File 'lib/active_record_schema_scrapper/associations.rb', line 4

def initialize(model:, types: self.class.types)
  @model  = model
  @types  = types
  @errors = []
end

Class Method Details

.types ⇒ Object 



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# File 'lib/active_record_schema_scrapper/associations.rb', line 54

def self.types
  [:has_and_belongs_to_many, :belongs_to, :has_one, :has_many]
end

Instance Method Details

#each ⇒ Object 



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# File 'lib/active_record_schema_scrapper/associations.rb', line 17

def each
  return [] if abstract_class
  @each ||= types.each do |type|
    model.reflect_on_all_associations(type).each do |a|
      begin
        hash = if a.try(:delegate_reflection)
                 { source:    a.delegate_reflection.options[:source],
                   through:   a.delegate_reflection.options[:through],
                   dependent: a.delegate_reflection.options[:dependent],
                 }
               else
                 { source:    (a.try(:delegate_reflection) || a.try(:source_reflection)).try(:name),
                   through:   a.try(:through) || a.try(:through_reflection).try(:name),
                   dependent: a.options[:dependent] }
               end.merge(name:        a.name,
                         foreign_key: a.foreign_key,
                         class_name:  a.klass.name,
                         type:        type)

        yield(ActiveRecordSchemaScrapper::Association.new(hash))
      rescue NameError => e
        @errors << ErrorObject.new(
          class_name:     model.name,
          message:        "Missing model #{a.name.to_s.camelize.singularize} for association #{model.name}.belongs_to :#{a.name}",
          original_error: e,
          level:          :error,
          type:           :association
        )
      end
    end
  end
end

#errors ⇒ Object 



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# File 'lib/active_record_schema_scrapper/associations.rb', line 10

def errors
  to_a
  @errors
end

#to_a ⇒ Object 



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# File 'lib/active_record_schema_scrapper/associations.rb', line 50

def to_a
  @to_a ||= map { |v| v }
end