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-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb18
1 files changed, 17 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
index ac62fb9825..d8431372ee 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
@@ -688,7 +688,7 @@ module ActiveRecord
m.register_type(%r(datetime)i) do |sql_type|
precision = extract_precision(sql_type)
- Type::DateTime.new(precision: precision)
+ MysqlDateTime.new(precision: precision)
end
m.register_type(%r(enum)i) do |sql_type|
@@ -884,6 +884,22 @@ module ActiveRecord
TableDefinition.new(native_database_types, name, temporary, options, as)
end
+ class MysqlDateTime < Type::DateTime # :nodoc:
+ def type_cast_for_database(value)
+ if value.acts_like?(:time) && value.respond_to?(:usec)
+ result = super.to_s(:db)
+ case precision
+ when 1..6
+ "#{result}.#{sprintf("%0#{precision}d", value.usec / 10**(6 - precision))}"
+ else
+ result
+ end
+ else
+ super
+ end
+ end
+ end
+
class MysqlString < Type::String # :nodoc:
def type_cast_for_database(value)
case value