rails relationship between models where primary key not involved

I have 2 models - Batch and Player

Batch has_many :players, :foreign_key => "PL_BATCH"
Player belongs_to 开发者_如何转开发:batch, :foreign_key => "PL_BATCH"

The table batches contains the following fields:

-BA_OID (defined as the primary key)
-BA_BATCH_ID
-BA_NAME

The table players contains the field PL_BATCH which is the foreign key of BA_BATCH_ID.

Note that I am using a legacy database and the column 'BA_OID ' is defined as the primary key of the batches table in mysql. However BA_BATCH_ID is used as FK in the players table

Batch model:

  set_table_name "batches"
  set_primary_key "BA_OID"
  has_many :players, :foreign_key => "PL_BATCH"

How do i define the relationship between batch and player models??

Thank you for your help

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You're almost there! Try the following...

Batch:

has_many :players, :primary_key => "BA_BATCH_ID", :foreign_key => "PL_BATCH", :class_name => "Player"

Player:

belongs_to :batch, :primary_key => "BA_BATCH_ID", :foreign_key => "PL_BATCH", :class_name => "Batch"