What is your intention regarding the students.teacher object? ------------------------------------- YING-KWANG TU<ying.kwang...@gmail.com> wrote:
Neil, In a nutshell... assuming teacher is the main entity and student is another entity. You will need to: In your "teachers" class: 1. extend "with ManyToMany" trait 2. declare a "students" object of type "MappedManyToMany(teacher_student, teacher_student.teacher_id, teacher_student.student_id, students)" In your "students" class: 1. declare a "teacher" object of type "MappedLongForeignKey(this, Role)" In your "teacher_student" class: 1. declare a "teacher_id" object of type "MappedLongForeignKey(this, teachers)" 2. declare a "student_id" object of type "MappedLongForeignKey(this, students)" *Note: the names are according to your convention. Yours, yk On Mon, Oct 26, 2009 at 12:29 PM, YING-KWANG TU <ying.kwang...@gmail.com>wrote: > Neil, > > The following thread has very good information on many-to-many > implementation: > > http://groups.google.com.my/group/liftweb/browse_thread/thread/5793917fee419f89 > > I can't summarize it for you but the thread above do give you some > pointers. > > Cheers, > yk > > > On Mon, Oct 26, 2009 at 11:52 AM, Neil.Lv <anim...@gmail.com> wrote: > >> >> Hi all, >> >> Dose anybody know that how to use the many-to-many relationship in >> the lift model ? >> >> * We need to create a 3 models to represent the 3 tables ( teachers, >> students, teacher_student ) >> ex: >> teachers -> id, name, sex, age, ... >> students -> id, name, sex, age, ... >> teacher_student -> id, student_id, teacher_id >> >> * How to write the code in the model to represent this >> relationship ? >> >> Or any other ways that can achieve this purpose ? >> >> Thanks for any suggestion ! >> >> Cheers, >> Neil >> >> >> >> > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~----------~----~----~----~------~----~------~--~---
