ruby - Retrieving only the sixth and seventh matching results in a Rails table -


i working on rails app, , hitting roadblock: need return several items in table are, say, 6th-8th matching items. ironically, rails has helper method shown here .first through .fifth.

my question is: how can find these results when n searching 6,7,8 , on without calling of 1st through 8th items?

here's why doing this. making home page blog. @ top, want show 5 recent posts (which shown image). underneath them, want show additional 3 links posts text.

currently, doing first part fine. in blog.controller.rb:

    @posts = post.order('created_at desc').first(5) 

i iterate through posts in view, , shows first 5 recent results. want show 6th-8th, , try , store them in new method. change controller to:

    @posts = post.order('created_at desc').first(5)     @texts = post.order('created_at desc').limit(8)  

this returns 8 recent posts instead of, say, 8th.

is possible me limit @texts show matching 6th, 7th, , 8th results?

yes. you'll want use offset them. here's documentation on offset: http://apidock.com/rails/activerecord/querymethods/offset

post.order(created_at: :desc).limit(3).offset(5)


Comments

Popular posts from this blog

mysql - Dreamhost PyCharm Django Python 3 Launching a Site -

java - Sending SMS with SMSLib and Web Services -

java - How to resolve The method toString() in the type Object is not applicable for the arguments (InputStream) -