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[rails.git] / db / migrate / 007_add_relations.rb

diff --git a/db/migrate/007_add_relations.rb b/db/migrate/007_add_relations.rb
index c265fc3adef1507c8d4e672acf8fcb98a2fc0520..cb541037830b7ec8cef1cce34b076b7d63544502 100644 (file)
--- a/db/migrate/007_add_relations.rb
+++ b/db/migrate/007_add_relations.rb
@@ -1,17 +1,20 @@
+require 'lib/migrate'
+
 class AddRelations < ActiveRecord::Migration
   def self.up
+    # enums work like strings but are more efficient
+    create_enumeration :nwr_enum, ["Node", "Way", "Relation"]
+
     # a relation can have members much like a way can have nodes.
     # differences:
     # way: only nodes / relation: any kind of member
     # way: ordered sequence of nodes / relation: free-form "role" string
     create_table "current_relation_members", innodb_table do |t|
-      t.column "id",          :bigint, :limit => 64, :null => false
-      t.column "member_type", :string, :limit => 11, :null => false
-      t.column "member_id",   :bigint, :limit => 11, :null => false
+      t.column "id",          :bigint,   :limit => 64, :null => false
+      t.column "member_type", :nwr_enum, :null => false
+      t.column "member_id",   :bigint,   :limit => 11, :null => false
       t.column "member_role", :string
     end
-    # enums work like strings but are more efficient
-    alter_column_nwr_enum :current_relation_members, :member_type
 
     add_primary_key "current_relation_members", ["id", "member_type", "member_id", "member_role"]
     add_index "current_relation_members", ["member_type", "member_id"], :name => "current_relation_members_member_idx"
@@ -34,14 +37,13 @@ class AddRelations < ActiveRecord::Migration
     end
 
     create_table "relation_members", myisam_table do |t|
-      t.column "id",          :bigint,  :limit => 64, :default => 0, :null => false
-      t.column "member_type", :string, :limit => 11, :null => false
-      t.column "member_id",   :bigint, :limit => 11, :null => false
+      t.column "id",          :bigint,   :limit => 64, :default => 0, :null => false
+      t.column "member_type", :nwr_enum, :null => false
+      t.column "member_id",   :bigint,   :limit => 11, :null => false
       t.column "member_role", :string
-      t.column "version",     :bigint,  :limit => 20, :default => 0, :null => false
+      t.column "version",     :bigint,   :limit => 20, :default => 0, :null => false
     end
 
-    alter_column_nwr_enum :relation_members, :member_type 
     add_primary_key "relation_members", ["id", "version", "member_type", "member_id", "member_role"]
     add_index "relation_members", ["member_type", "member_id"], :name => "relation_members_member_idx"
 
@@ -76,5 +78,6 @@ class AddRelations < ActiveRecord::Migration
     drop_table :current_relation_tags
     drop_table :relation_members
     drop_table :current_relation_members
+    drop_enumeration :nwr_enum
   end
 end