Class: ActiveRecord::ConnectionAdapters::OracleConstraint

Inherits:
AbstractTableConstraint show all
Defined in:
lib/connection_adapters/oracle_adapter.rb

Constant Summary collapse

PRIMARY_KEY_TYPE = 
"P"
FOREIGN_KEY_TYPE = 
"R"
UNIQUE_KEY_TYPE = 
"U"
CHECK_CONSTRAINT_TYPE = 
"C"

Instance Attribute Summary

Attributes inherited from AbstractTableConstraint

#column_names, #constraint_name, #constraint_type, #referenced_column_names, #referenced_table_name, #table_name, #table_schema

Instance Method Summary collapse

Methods inherited from AbstractTableConstraint

#raise_subclass_responsibility_error

Constructor Details

#initialize(constraint_name, constraint_type, table_name, column_name, referenced_constraint_name, referenced_table_name, referenced_column_name, delete_rule) ⇒ OracleConstraint

Returns a new instance of OracleConstraint.



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# File 'lib/connection_adapters/oracle_adapter.rb', line 29

def initialize(constraint_name, constraint_type, table_name, column_name, 
  referenced_constraint_name, referenced_table_name, referenced_column_name, delete_rule)
  @constraint_name = constraint_name
  @table_schema = table_schema
  @table_name = table_name
  @constraint_type = constraint_type
  @column_names = [column_name]
  @referenced_table_name = referenced_table_name
  @referenced_column_names = [ referenced_column_name ] if referenced_column_name
  @delete_rule = delete_rule
end

Instance Method Details

#foreign_key? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/connection_adapters/oracle_adapter.rb', line 49

def foreign_key?
  constraint_type == FOREIGN_KEY_TYPE
end

#is_foreign_constraint?(table_name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/connection_adapters/oracle_adapter.rb', line 41

def is_foreign_constraint?(table_name)
  @table_name.upcase != table_name.upcase
end

#primary_key? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/connection_adapters/oracle_adapter.rb', line 45

def primary_key?
  constraint_type == PRIMARY_KEY_TYPE
end

#unique_key? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/connection_adapters/oracle_adapter.rb', line 53

def unique_key?
  constraint_type == UNIQUE_KEY_TYPE
end