Merge [9056] from trunk: Migrations: create_table supports primary_key_prefix_type. References rails#10314.

git-svn-id: http://svn-commit.rubyonrails.org/rails/branches/2-0-stable@9057 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

Author: jeremy

activerecord/CHANGELOG

@@ -1,5 +1,7 @@
 *SVN*
 
+* Migrations: create_table supports primary_key_prefix_type.  #10314 [student, thechrisoshow]
+
 * Ensure that ActiveRecord::Calculations disambiguates field names with the table name.  #11027 [cavalle]
 
 * Ensure that modifying has_and_belongs_to_many actions clear the query cache.  Closes #10840 [john.andrews]

activerecord/lib/active_record/base.rb

@@ -966,14 +966,19 @@ def primary_key
       end
 
       def reset_primary_key #:nodoc:
+        key = get_primary_key(base_class.name)
+        set_primary_key(key)
+        key
+      end
+
+      def get_primary_key(base_name) #:nodoc:
         key = 'id'
         case primary_key_prefix_type
           when :table_name
-            key = Inflector.foreign_key(base_class.name, false)
+            key = Inflector.foreign_key(base_name, false)
           when :table_name_with_underscore
-            key = Inflector.foreign_key(base_class.name)
+            key = Inflector.foreign_key(base_name)
         end
-        set_primary_key(key)
         key
       end
 

activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb

@@ -89,7 +89,7 @@ def columns(table_name, name = nil) end
       # See also TableDefinition#column for details on how to create columns.
       def create_table(table_name, options = {})
         table_definition = TableDefinition.new(self)
-        table_definition.primary_key(options[:primary_key] || "id") unless options[:id] == false
+        table_definition.primary_key(options[:primary_key] || Base.get_primary_key(table_name)) unless options[:id] == false
 
         yield table_definition