Module: SQL::Postgres

Defined in:
lib/dm-migrations/sql/postgres.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/postgres.rb', line 39

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

#property_schema_statement(connection, schema) ⇒ Object 



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# File 'lib/dm-migrations/sql/postgres.rb', line 22

def property_schema_statement(connection, schema)
  if supports_serial? && schema[:serial]
    statement = "#{schema[:quote_column_name]} SERIAL PRIMARY KEY"
  else
    statement = super
    if schema.has_key?(:sequence_name)
      statement << " DEFAULT nextval('#{schema[:sequence_name]}') NOT NULL"
    end
    statement
  end
  statement
end

#recreate_database ⇒ Object 



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# File 'lib/dm-migrations/sql/postgres.rb', line 12

def recreate_database
  execute 'DROP SCHEMA IF EXISTS test CASCADE'
  execute 'CREATE SCHEMA test'
  execute 'SET search_path TO test'
end

#supports_schema_transactions? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/dm-migrations/sql/postgres.rb', line 4

def supports_schema_transactions?
  true
end

#supports_serial? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/dm-migrations/sql/postgres.rb', line 18

def supports_serial?
  true
end

#table(table_name) ⇒ Object 



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# File 'lib/dm-migrations/sql/postgres.rb', line 8

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

#table_options(opts) ⇒ Object 



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# File 'lib/dm-migrations/sql/postgres.rb', line 35

def table_options(opts)
  ''
end