Class: ActiveRecord::ConnectionAdapters::AbstractAdapter

Inherits:
Object
  • Object
show all
Defined in:
lib/connection_adapters/abstract_adapter.rb

Direct Known Subclasses

MysqlAdapter, PostgreSQLAdapter

Instance Method Summary collapse

Instance Method Details

#foreign_key_constraints(table, name = nil) ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/connection_adapters/abstract_adapter.rb', line 17

def foreign_key_constraints(table, name = nil)
  raise NotImplementedError, "foreign_key_constraints is not implemented for #{self.class}"
end

#remove_foreign_key_constraint(table_name, constraint_name) ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/connection_adapters/abstract_adapter.rb', line 21

def remove_foreign_key_constraint(table_name, constraint_name)
  raise NotImplementedError, "rename_table is not implemented for #{self.class}"
end

#supports_fetch_foreign_keys? ⇒ Boolean

Does this adapter support the ability to fetch foreign key information?

Backend specific, as the abstract adapter always returns false.

Returns:

  • (Boolean) 


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# File 'lib/connection_adapters/abstract_adapter.rb', line 13

def supports_fetch_foreign_keys?
  false
end