Re:

Hi Manouchehr

You should be able to use a HasMany / BelongsTo relationship.

Courses belongsTo CoursePrerequisites
CoursePrerequisites HasMany Courses

This way you can have say 15 Course Prerequisites and 10 courses, some
courses can share some of the same prerequisites.

On 05/02/2012 14:25, Manouchehr Boshaq wrote:
> hi
> first i'm member of group but i cant post to moderator .
> second:
> i have a table for storing course data. any course has 1 or more
> prerequisites of courses.
> how can i relate HABTM table with itself.
>
> thanks
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