在ExtJS中定义关联

Question

I have three tables in my database. They are Student , Subject and Mark . Student has these fields: id , name , address . Subject has these fields: id , name . And Mark has these fields id , studentId , subjectId and mark . So, here I have these associations like Student can have many subject and one subject has one mark . So, how can I define these relations in MVC pattern like placing them in Model and Store. I want to display the information like student_name, student_address, subject_name and marks in my grid panel. But I having trouble associating them in Model and Stores.

Answer 1

Take a look at the docs of the model and the reader . There you will find enough information to get you started.

After reading the docs you can take a look at the tutorials of MiamiCoder , ModusCreate and this one ..

Answer 2

I just made sometime ago a fiddle that show how association works. You can see json example also.

When you catch the basics, rest should be easier to understand.

How associations works - Fiddle - by example