aboutsummaryrefslogtreecommitdiffstats
path: root/activerecord/lib/active_record
diff options
context:
space:
mode:
Diffstat (limited to 'activerecord/lib/active_record')
-rw-r--r--activerecord/lib/active_record/connection_adapters/mysql_adapter.rb15
1 files changed, 15 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb
index ad36ff22e3..fa28bc64df 100644
--- a/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb
@@ -470,6 +470,13 @@ module ActiveRecord
execute "RENAME TABLE #{quote_table_name(table_name)} TO #{quote_table_name(new_name)}"
end
+ def add_column(table_name, column_name, type, options = {})
+ add_column_sql = "ALTER TABLE #{quote_table_name(table_name)} ADD #{quote_column_name(column_name)} #{type_to_sql(type, options[:limit], options[:precision], options[:scale])}"
+ add_column_options!(add_column_sql, options)
+ add_column_position!(add_column_sql, options)
+ execute(add_column_sql)
+ end
+
def change_column_default(table_name, column_name, default) #:nodoc:
column = column_for(table_name, column_name)
change_column table_name, column_name, column.sql_type, :default => default
@@ -498,6 +505,7 @@ module ActiveRecord
change_column_sql = "ALTER TABLE #{quote_table_name(table_name)} CHANGE #{quote_column_name(column_name)} #{quote_column_name(column_name)} #{type_to_sql(type, options[:limit], options[:precision], options[:scale])}"
add_column_options!(change_column_sql, options)
+ add_column_position!(change_column_sql, options)
execute(change_column_sql)
end
@@ -529,6 +537,13 @@ module ActiveRecord
end
end
+ def add_column_position!(sql, options)
+ if options[:first]
+ sql << " FIRST"
+ elsif options[:after]
+ sql << " AFTER #{quote_column_name(options[:after])}"
+ end
+ end
# SHOW VARIABLES LIKE 'name'
def show_variable(name)