[Rails] How to generate mapping with migration

[Daniel Völkerts]

Daniel Völkerts schrieb:
> Daniel Völkerts schrieb:
> 
>> Any hints appreciated,
> 
> Ohh, read the api carefully.
> 
> class AddNotesCategoriesMapping < ActiveRecord::Migration
>   def self.up
>         create_table :categories_notes, :id=>false do |t|
>             t.column :category_id, :primary_key, :null=>false
>             t.column :note_id, :primary_key, :null=>false
>         end
>   end
> 
>   def self.down
>         drop_table :categories_notes
>   end
> end
> 

No, that was not the solution... Any ideas?


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Daniel Völkerts
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