how can I include multiple values to has and belongs to many relation from various select box?

Question

I have two tables items and sub_category and I have has_and_belongs_to_many relation between two. I have to select values for sub categories from different select boxes and include all those values to the item subcategory.

I have a form where I have one drop down box and multiple select box and both these contain sub categories and I have to include the values from both to the item subcategory. How can I do this?

Please include your code where you want to include this relateion — Ganesh Kunwar, Mar 15 '13 at 07:29
@Ganesh Kunwar : I have posted clearly in another question along with the code. please refer to it http://stackoverflow.com/questions/15478085/how-can-i-get-the-value-for-association-from-different-fields-and-save-all-the-v — logesh, Mar 19 '13 at 04:34

score 3 · Answer 1 · answered Mar 15 '13 at 09:22

3

This is an example of book and author example.I think you can change this code with your problem.

<%= select_tag "book[author_ids][]", options_from_collection_for_select(Author.all, :id, :name), {:multiple => true, :size => 3} %>

answered Mar 15 '13 at 09:22

Nithin Viswanathan

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This is what i have but with a little change. Instead of select tag i have used collection select but my question is more than one drop down box for the same association and selecting mutiple values from all the drop down. – logesh Mar 19 '13 at 04:30

score 0 · Answer 2 · answered Oct 04 '13 at 04:47

If I have correctly interpretated your question, this example, Rails cast 88, http://railscasts.com/episodes/88-dynamic-select-menus-revised, from rails casts should answer the question. In this example selecting the country then changes the possible slection choice for states. Pierre

how can I include multiple values to has and belongs to many relation from various select box?

2 Answers2