Move the collation handling code from the MySQL adapter to common classes

Some databases like MySQL allow defining collation charset for specific
columns.

1 files changed, 4 insertions, 3 deletions

diff --git a/activerecord/lib/active_record/connection_adapters/column.rb b/activerecord/lib/active_record/connection_adapters/column.rb
index f4dda5154e..4b95b0681d 100644
--- a/activerecord/lib/active_record/connection_adapters/column.rb
+++ b/activerecord/lib/active_record/connection_adapters/column.rb
@@ -12,7 +12,7 @@ module ActiveRecord
         ISO_DATETIME = /\A(\d{4})-(\d\d)-(\d\d) (\d\d):(\d\d):(\d\d)(\.\d+)?\z/
       end
 
-      attr_reader :name, :null, :sql_type_metadata, :default, :default_function
+      attr_reader :name, :null, :sql_type_metadata, :default, :default_function, :collation
 
       delegate :precision, :scale, :limit, :type, :sql_type, to: :sql_type_metadata, allow_nil: true
 
@@ -22,12 +22,13 @@ module ActiveRecord
       # +default+ is the type-casted default value, such as +new+ in <tt>sales_stage varchar(20) default 'new'</tt>.
       # +sql_type_metadata+ is various information about the type of the column
       # +null+ determines if this column allows +NULL+ values.
-      def initialize(name, default, sql_type_metadata = nil, null = true, default_function = nil)
+      def initialize(name, default, sql_type_metadata = nil, null = true, default_function = nil, collation = nil)
         @name = name
         @sql_type_metadata = sql_type_metadata
         @null = null
         @default = default
         @default_function = default_function
+        @collation = collation
         @table_name = nil
       end
 
@@ -60,7 +61,7 @@ module ActiveRecord
       protected
 
       def attributes_for_hash
-        [self.class, name, default, sql_type_metadata, null, default_function]
+        [self.class, name, default, sql_type_metadata, null, default_function, collation]
       end
     end