Module: ActiveRecord::ConnectionAdapters::SchemaStatements

Defined in:
lib/bcms_tools/migration_helpers.rb

Instance Method Summary collapse

Instance Method Details

#convert_database_to_innodb(aDatabase = nil) ⇒ Object

aDatabase may be nil to use the current database



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# File 'lib/bcms_tools/migration_helpers.rb', line 55

def convert_database_to_innodb(aDatabase=nil)
	convert_tables_to_innodb(get_isam_tables(aDatabase),aDatabase)
end

#convert_tables_to_innodb(aTables, aDatabase = nil) ⇒ Object 



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# File 'lib/bcms_tools/migration_helpers.rb', line 49

def convert_tables_to_innodb(aTables,aDatabase=nil)
	aDatabase ||= ActiveRecord::Base.connection.current_database
	aTables.each {|t| ActiveRecord::Base.connection.execute("ALTER TABLE #{aDatabase}.#{t} engine=InnoDB;")}
end

#get_isam_tables(aDatabase = nil) ⇒ Object

The following methods and migration will convert all MyISAM tables to InnoDB format.

Also see browsermedia.lighthouseapp.com/projects/28481-browsercms-30/tickets/319-custom-migrations-methods-eg-create_content_table-result-in-myisam-tables

example migration : gem ‘bcms_tools’; require ‘bcms_tools’

class ConvertAllToInnodb < ActiveRecord::Migration

def self.up

convert_database_to_innodb()

end

def self.down
end

end



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# File 'lib/bcms_tools/migration_helpers.rb', line 42

def get_isam_tables(aDatabase=nil)
	aDatabase ||= ActiveRecord::Base.connection.current_database
	isam_tables = []
	ActiveRecord::Base.connection.execute("SELECT table_name FROM information_schema.tables WHERE engine = 'MyISAM' and table_schema = '#{aDatabase}';").each {|s| isam_tables << s}
	isam_tables
end