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module RedHillConsulting::Core::ActiveRecord::ConnectionAdapters
class ForeignKeyDefinition < Struct.new(:name, :table_name, :column_names, :references_table_name, :references_column_names, :on_update, :on_delete, :deferrable)
ACTIONS = { :cascade => "CASCADE", :restrict => "RESTRICT", :set_null => "SET NULL", :set_default => "SET DEFAULT", :no_action => "NO ACTION" }.freeze
def to_dump
dump = "add_foreign_key"
dump << " #{table_name.inspect}, [#{column_names.collect{ |name| name.inspect }.join(', ')}]"
dump << ", #{references_table_name.inspect}, [#{references_column_names.collect{ |name| name.inspect }.join(', ')}]"
dump << ", :on_update => :#{on_update}" if on_update
dump << ", :on_delete => :#{on_delete}" if on_delete
dump << ", :deferrable => #{deferrable}" if deferrable
dump << ", :name => #{name.inspect}" if name
dump
end
def to_sql
sql = name ? "CONSTRAINT #{name} " : ""
sql << "FOREIGN KEY (#{Array(column_names).join(", ")}) REFERENCES #{references_table_name} (#{Array(references_column_names).join(", ")})"
sql << " ON UPDATE #{ACTIONS[on_update]}" if on_update
sql << " ON DELETE #{ACTIONS[on_delete]}" if on_delete
sql << " DEFERRABLE" if deferrable
sql
end
alias :to_s :to_sql
end
end
Version data entries
69 entries across 69 versions & 2 rubygems