- def interval_constant(interval)
- "'#{interval}'"
- end
- end
- end
-
- if defined?(ActiveRecord::ConnectionAdapters::PostgreSQLAdapter)
- class PostgreSQLAdapter
- alias_method :old_native_database_types, :native_database_types
-
- def native_database_types
- types = old_native_database_types
- types[:double] = { :name => "double precision" }
- types[:integer_pk] = { :name => "serial PRIMARY KEY" }
- types[:bigint_pk] = { :name => "bigserial PRIMARY KEY" }
- types[:bigint_pk_64] = { :name => "bigserial PRIMARY KEY" }
- types[:bigint_auto_64] = { :name => "bigint" } #fixme: need autoincrement?
- types[:bigint_auto_11] = { :name => "bigint" } #fixme: need autoincrement?
- types[:bigint_auto_20] = { :name => "bigint" } #fixme: need autoincrement?
- types[:four_byte_unsigned] = { :name => "bigint" } # meh
- types[:inet] = { :name=> "inet" }
-
- enumerations.each_key do |e|
- types[e.to_sym]= { :name => e }
- end
-
- types
- end
-
- def myisam_table
- return { :id => false, :force => true, :options => ""}
- end
-
- def innodb_table
- return { :id => false, :force => true, :options => ""}
- end
-
- def innodb_option
- return ""
- end
-
- def change_engine (table_name, engine)
- end
-
- def add_fulltext_index (table_name, column)
- execute "CREATE INDEX #{table_name}_#{column}_idx on #{table_name} (#{column})"
- end
-
- def enumerations
- @enumerations ||= Hash.new
- end
-
- def create_enumeration (enumeration_name, values)
- enumerations[enumeration_name] = values
- execute "create type #{enumeration_name} as enum ('#{values.join '\',\''}')"
- end
-
- def drop_enumeration (enumeration_name)
- execute "drop type #{enumeration_name}"
- enumerations.delete(enumeration_name)
- end
-
- def alter_primary_key(table_name, new_columns)
- execute "alter table #{table_name} drop constraint #{table_name}_pkey; alter table #{table_name} add primary key (#{new_columns.join(',')})"
- end
-
- def interval_constant(interval)
- "'#{interval}'::interval"
- end
-
- def add_index(table_name, column_name, options = {})
- column_names = Array(column_name)
- index_name = index_name(table_name, :column => column_names)
-
- if Hash === options # legacy support, since this param was a string
- index_type = options[:unique] ? "UNIQUE" : ""
- index_name = options[:name] || index_name
- index_method = options[:method] || "BTREE"
- else
- index_type = options
- end
-
- quoted_column_names = column_names.map { |e| quote_column_name(e) }
- if Hash === options and options[:lowercase]
- quoted_column_names = quoted_column_names.map { |e| "LOWER(#{e})" }
- end
- quoted_column_names = quoted_column_names.join(", ")
-
- execute "CREATE #{index_type} INDEX #{quote_column_name(index_name)} ON #{quote_table_name(table_name)} USING #{index_method} (#{quoted_column_names})"
- end