Question are at end of the topic.
class Product < ActiveRecord::Base
belongs_to :categoriesend
class Category < ActiveRecord::Base
has_many :productsend
Categories table has 2 level nesting, for example.
Main category is ‘Men’, sub-category is ‘Accessories’ and
sub-sub-category is ‘Watches’.
https://lh3.googleusercontent.com/-rnrsz1Wits4/UsjHdewNxJI/AAAAAAAAABM/8AtjacUy5jU/s1600/test1.png
Now when user creates new product he must choose category(only main
category is required, but he can also chose sub and sub-sub category
optional).
My idea is following: I created 3 different select boxes with same name
“product[category_id]”, so only the last selected value will be sent to
the server
through params[:product][:category_id].
For populating 2nd select(sub-category) and 3rd(sub-sub-categories) i’m
using ajax call where 2nd and 3rd select are initial hidden (display:
none) through CSS.
$(‘#main-category, .category-level-1 > select’).change(function() {
var selectBox = this.id;
var selectedValue = $(this).val();
var url = ‘/categories/’ + selectedValue + ‘/subcategories’;
$.get(url, function(data) { *createSelect*(data, *selectBox*);
});});
function createSelect(data, selectBox) {
var $currentSelect = null;
if (selectBox == ‘main-category’) {
$(‘.category-level-1’).show();
$(‘.category-level-2’).hide();
$(‘.category-level-1 > select’).find(‘option’).remove();
$currentSelect = $('.category-level-1 > select');
}
else {
$(‘.category-level-2’).show();
$(‘.category-level-2 > select’).find(‘option’).remove();
$currentSelect = $('.category-level-2 > select');
}
$currentSelect.append(‘Select
Category…’);
for(var i=0; i<data.length; i++) {
$currentSelect.append(‘’ +
data[i].name + ‘’);
}
}
Where ajax call is sent to following route (categories controller)def
subcategories id = params[:id] @subcategories =
Category.where(‘category_id = ?’, id) render json: @subcategories end
So for final result i have following:
https://lh6.googleusercontent.com/-GI2WI8Z2Nus/UsjLg0ZSrFI/AAAAAAAAABg/s1gUVqrW2L4/s1600/test2.png
https://lh6.googleusercontent.com/-GI2WI8Z2Nus/UsjLg0ZSrFI/AAAAAAAAABg/s1gUVqrW2L4/s1600/test2.pngFirst
of all is it normal to have different inputs in one form with same names
created manually like i did in this
example?https://lh6.googleusercontent.com/-GI2WI8Z2Nus/UsjLg0ZSrFI/AAAAAAAAABg/s1gUVqrW2L4/s1600/test2.pngFor
some reason it seem like ‘code-smell’ to me. I’m relatively new to rails
so
wanted to ask am’i violating some good practices with this
code?https://lh6.googleusercontent.com/-GI2WI8Z2Nus/UsjLg0ZSrFI/AAAAAAAAABg/s1gUVqrW2L4/s1600/test2.pngCan
you suggest better way to achieve same
results?https://lh6.googleusercontent.com/-GI2WI8Z2Nus/UsjLg0ZSrFI/AAAAAAAAABg/s1gUVqrW2L4/s1600/test2.png
Thanks.
https://lh6.googleusercontent.com/-GI2WI8Z2Nus/UsjLg0ZSrFI/AAAAAAAAABg/s1gUVqrW2L4/s1600/test2.png