I have the following models:
Category:
has_many :sub_categories
Sub_Category:
belongs_to :category
has_many :posts
Post:
belongs_to :sub_category
I’m trying to build a page that will list Categories with Pjax tabs and
then each Category tab will list all it’s Sub-Categories in widgets with
5
posts in each widget.
I have an idea of how to loop through the data once I have it but I’m
having trouble structuring the query. Thanks for any help.
@category.sub_categories.each do |sub_cat|
sub_cat.posts.each_slice(5) do |posts|
#here you create a widget, posts have at most 5 elements thanks to
each_slice method
posts.each do |post|
#do something with each post
end
endend
On 4 March 2013 15:35, Anthony DeFreitas [email protected]
wrote:
Post:
sub_cat.posts.each_slice(5) do |posts|
#here you create a widget, posts have at most 5 elements thanks to
each_slice method
posts.each do |post|
#do something with each post
end
end
end
It is not clear to me what question you are trying to ask here.
Colin
My question is how do I structure a query that will return all the
categories with the related sub-categories and the related posts.
On 5 March 2013 01:43, Anthony DeFreitas [email protected]
wrote:
My question is how do I structure a query that will return all the
categories with the related sub-categories and the related posts.
If you just get all the relevent categories in @categories then for
each category accessed via something like
@categories.each do |category|
then you can use category.sub_categories and then for each of those
the posts in exactly the way suggested in your original code. There
is no need to do anything special in the query, just fetch the
relevant categories.
By the way could you not top post please, it makes it difficult to
follow the thread. Insert you reply at appropriate points in the
previous message. Thanks.
Colin
You dont need to structure the query to the db. you get all categories,
subcategories and posts with @categories = Category.all (or something
like
Category.where(:xy => z)
You can iterate over the @categories like this:
@categories.each do |category|
Do stuff for your category iteration here
category.sub_categories.each do |sub|
# Do stuff of sub category here
sub.posts.each_slice(5) do |slice|
# Slice stuff here (each 5 posts do something, like a div or
something.)
slice.each do |post|
# do single post stuff here
end
end
end
end
Am Dienstag, 5. Mrz 2013 02:43:50 UTC+1 schrieb Anthony DeFreitas:
On Tue, Mar 5, 2013 at 2:56 PM, Colin L. [email protected]
wrote:
is no need to do anything special in the query, just fetch the
has_many :posts
I have an idea of how to loop through the data once I have it but I’m
having
trouble structuring the query. Thanks for any help.
Do you mean to say you’ve got the view code but don’t know what should
go
in the controller?