Module: SQL::Mysql

Defined in:
lib/dm-migrations/sql/mysql.rb

Defined Under Namespace

Classes: Column, Table

Instance Method Summary collapse

Instance Method Details

#change_column_type_statement(name, column) ⇒ Object 



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# File 'lib/dm-migrations/sql/mysql.rb', line 40

def change_column_type_statement(name, column)
  "ALTER TABLE #{quote_name(name)} MODIFY COLUMN #{column.to_sql}"
end

#property_schema_statement(connection, schema) ⇒ Object 



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# File 'lib/dm-migrations/sql/mysql.rb', line 32

def property_schema_statement(connection, schema)
  if supports_serial? && schema[:serial]
    statement = "#{schema[:quote_column_name]} SERIAL PRIMARY KEY"
  else
    super
  end
end

#recreate_database ⇒ Object 



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# File 'lib/dm-migrations/sql/mysql.rb', line 14

def recreate_database
  execute "DROP DATABASE #{schema_name}"
  execute "CREATE DATABASE #{schema_name}"
  execute "USE #{schema_name}"
end

#supports_schema_transactions? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/dm-migrations/sql/mysql.rb', line 6

def supports_schema_transactions?
  false
end

#supports_serial? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/dm-migrations/sql/mysql.rb', line 20

def supports_serial?
  true
end

#table(table_name) ⇒ Object 



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# File 'lib/dm-migrations/sql/mysql.rb', line 10

def table(table_name)
  SQL::Mysql::Table.new(self, table_name)
end

#table_options(opts) ⇒ Object 



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# File 'lib/dm-migrations/sql/mysql.rb', line 24

def table_options(opts)
  opt_engine    = opts[:storage_engine] || storage_engine
  opt_char_set  = opts[:character_set] || character_set
  opt_collation = opts[:collation] || collation

  " ENGINE = #{opt_engine} CHARACTER SET #{opt_char_set} COLLATE #{opt_collation}"
end