diff options
Diffstat (limited to 'activerecord/lib/active_record/connection_adapters/abstract_adapter.rb')
| -rw-r--r-- | activerecord/lib/active_record/connection_adapters/abstract_adapter.rb | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb index 6d3a21a3dc..402159ac13 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb @@ -1,5 +1,6 @@ require 'active_record/type' require 'active_support/core_ext/benchmark' +require 'active_record/connection_adapters/determine_if_preparable_visitor' require 'active_record/connection_adapters/schema_cache' require 'active_record/connection_adapters/sql_type_metadata' require 'active_record/connection_adapters/abstract/schema_dumper' @@ -51,15 +52,15 @@ module ActiveRecord # related classes form the abstraction layer which makes this possible. # An AbstractAdapter represents a connection to a database, and provides an # abstract interface for database-specific functionality such as establishing - # a connection, escaping values, building the right SQL fragments for ':offset' - # and ':limit' options, etc. + # a connection, escaping values, building the right SQL fragments for +:offset+ + # and +:limit+ options, etc. # # All the concrete database adapters follow the interface laid down in this class. - # ActiveRecord::Base.connection returns an AbstractAdapter object, which + # {ActiveRecord::Base.connection}[rdoc-ref:ConnectionHandling#connection] returns an AbstractAdapter object, which # you can use. # # Most of the methods in the adapter are useful during migrations. Most - # notably, the instance methods provided by SchemaStatement are very useful. + # notably, the instance methods provided by SchemaStatements are very useful. class AbstractAdapter ADAPTER_NAME = 'Abstract'.freeze include Quoting, DatabaseStatements, SchemaStatements @@ -107,6 +108,18 @@ module ActiveRecord @prepared_statements = false end + class Version + include Comparable + + def initialize(version_string) + @version = version_string.split('.').map(&:to_i) + end + + def <=>(version_string) + @version <=> version_string.split('.').map(&:to_i) + end + end + class BindCollector < Arel::Collectors::Bind def compile(bvs, conn) casted_binds = conn.prepare_binds_for_database(bvs) @@ -254,6 +267,11 @@ module ActiveRecord false end + # Does this adapter support json data type? + def supports_json? + false + end + # This is meant to be implemented by the adapters that support extensions def disable_extension(name) end @@ -331,7 +349,7 @@ module ActiveRecord end # Checks whether the connection to the database is still active (i.e. not stale). - # This is done under the hood by calling <tt>active?</tt>. If the connection + # This is done under the hood by calling #active?. If the connection # is no longer active, then this method will reconnect to the database. def verify!(*ignored) reconnect! unless active? |