Class: RailsLens::Analyzers::ForeignKeyAnalyzer

Inherits:
Base
  • Object
show all
Defined in:
lib/rails_lens/analyzers/foreign_key_analyzer.rb

Instance Attribute Summary

Attributes inherited from Base

#model_class

Instance Method Summary collapse

Methods inherited from Base

#initialize

Methods included from ErrorHandling

#safe_analyze

Constructor Details

This class inherits a constructor from RailsLens::Analyzers::Base

Instance Method Details

#analyze ⇒ Object 



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# File 'lib/rails_lens/analyzers/foreign_key_analyzer.rb', line 6

def analyze
  return [] unless connection.supports_foreign_keys?

  notes = []
  existing_foreign_keys = connection.foreign_keys(table_name)

  belongs_to_associations.each do |association|
    next if association.polymorphic?

    foreign_key = association.foreign_key
    referenced_table = association.klass.table_name

    unless foreign_key_exists?(foreign_key, referenced_table, existing_foreign_keys)
      notes << NoteCodes.note(foreign_key, NoteCodes::FK_CONSTRAINT)
    end
  end

  notes
end