Class: Partitioned::PartitionedBase::Configurator::Data::ForeignKey

Inherits:
Object
  • Object
show all
Defined in:
lib/partitioned/partitioned_base/configurator/data.rb

Overview

represents a SQL foreign key reference

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(referencing_field, referenced_table = nil, referenced_field = :id) ⇒ ForeignKey 



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# File 'lib/partitioned/partitioned_base/configurator/data.rb', line 19

def initialize(referencing_field, referenced_table = nil, referenced_field = :id)
  @referencing_field = referencing_field
  @referenced_table = if referenced_table.nil? 
                        self.class.foreign_key_to_foreign_table_name(referencing_field)
                      else
                        referenced_table
                      end
  @referenced_field = referenced_field
end

Instance Attribute Details

#referenced_field ⇒ Object

Returns the value of attribute referenced_field.



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# File 'lib/partitioned/partitioned_base/configurator/data.rb', line 18

def referenced_field
  @referenced_field
end

#referenced_table ⇒ Object

Returns the value of attribute referenced_table.



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# File 'lib/partitioned/partitioned_base/configurator/data.rb', line 18

def referenced_table
  @referenced_table
end

#referencing_field ⇒ Object

Returns the value of attribute referencing_field.



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# File 'lib/partitioned/partitioned_base/configurator/data.rb', line 18

def referencing_field
  @referencing_field
end

Class Method Details

.foreign_key_to_foreign_table_name(foreign_key_field) ⇒ String

Produce a table name from the name of the foreign key. in rails, this really means “foo_id” should be mapped to “foos”, and “company_id” should be mapped to “companies”



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# File 'lib/partitioned/partitioned_base/configurator/data.rb', line 36

def self.foreign_key_to_foreign_table_name(foreign_key_field)
  return ActiveSupport::Inflector::pluralize(foreign_key_field.to_s.sub(/_id$/,''))
end