Displaying 1 result from an estimated 1 matches for "related_node".
2006 Mar 15
3
Self-referential join model does not work
...d::Migration
def self.up
create_table :nodes do |t|
t.column :title, :string, :null => false
t.column :body, :text, :null => false, :default => ''''
end
create_table :edges do |t|
t.column :node_id, :integer, :null => false
t.column :related_node_id, :integer, :null => false
t.column :label, :string, :null => false, :default => ''''
end
add_index :edges, [:node_id, :related_node_id], :unique => true
end
def self.down
drop_table :edges
drop_table :nodes
end
end
The two models are as fo...