I am getting the following error during testing of my application
(using the Rails testing framework):
Mysql::Error: Duplicate entry ‘140-2’ for key 1: INSERT INTO
member_entity_id) VALUES (140, 2)
The error occurs when I try to save two model objects where the model
has the following HABTM association:
The two objects are distinct from each other and I would therefore
expect ActiveRecord to generate a different value for accessibility_id
in each row. I would expect member_entity_id to be the same value in
each row. There is a compound primary key defined for the join table
(accessibility_id + member_entity_id). The accessibility_id and
member_entity_id database columns are defined as INT.
My debugging has been fruitless and the objects seem fine before the
save. Is this an error in the Rails testing framework or Active
Record? I am using test fixtures etc to test my code.
My application is running on Rails 2.2.2 and MySQL 5.0.51 (for
Any help/ideas much appreciated.