I have a social feed.
If the user scrolls down a lot it is annoying to the user that by liking/commenting he is redirected to the top of the page instead of in the same part of the page to where he had scrolled to.
Is there any way to do this? Otherwise I'll just use paginate to make the pages smaller, which isn't ideal because that also takes away from user friendliness.
class ActivitiesController < ApplicationController
def index
#activities = Activity.order("created_at desc").where(user_id: current_user.following_ids)
end
def show
redirect_to(:back)
end
end
I've been on a roll with questions please check them out if you have time :)
Assuming that is being redirected to the top of the page because the page is being reloaded after a comment/favorite, you could try performing these actions using ajax instead.
This way, the page won't reload and you can modify the DOM to reflect the user's actions with javascript.
Here's some more information on ajax in rails:
http://guides.rubyonrails.org/working_with_javascript_in_rails.html
First generate anchors in your page by giving them ids. For example:
<div id="activity5">
..
</div>
Then in your controller, redirect to that part by using an anchor option:
redirect_to(request.env["HTTP_REFERER"] + '#activity5')
Note: redirect_to(:back) is the same as redirect_to(request.env["HTTP_REFERER"])
Having said that, using Javascript and AJAX is probably a better option.
Related
I have 2 versions of the same pages in my rails app and I would like for them to alternately load when the same page is called.
So for example: On page load index view comes up. On reload or refresh the alt_index page loads. How can I accomplish this? I am sure it can be accomplished in a controller action but not sure how.
class ComingSoonController < ApplicationController
def index
render('alt_index' || 'index')
end
end
This only renders the alt_index page I need it to alternate.
I suggest that you randomly select one of the templates to render with Array#sample instead of trying to alternate between them:
render ['alt_index', 'index'].sample
Is it possible, in a RoR web application, to allow users to edit elements which are in a Show page?
The target would be something like on Linkedin, when you edit your own profile page (moving your mouse over a field gives you the ability to edit it). How do they manage to do that? Is it on a Show page or an Edit page? What kind of front-end technology do we need?
I'm not a big fan of the traditional 'Edit.html' vs 'Show.html'.
Many thanks! :)
Yes you can use your show page as an edit page. You could set up your controller to something comparable to this:
your_controller.rb
class YourController < Application Controller
before_filter :show_user
def show
render :edit
end
def edit; end
private
def show_user
#user = current_user
end
end
Also don't forget your 'update' method within this controller and params that you are passing. Then you can create your edit.html view that acts as a show page, but allows edits to take place. As far as editing comparable to LinkedIn, you can use the 'best_in_place' gem for inline editing. Found here: https://github.com/bernat/best_in_place
I have a Page model in my rails 4 app. It has an :permalink attribute that is used so that when someone goes to "mysite.com/pages/page-name", the controller finds the Page with "page-name" as the permalink and then shows the view.
pages_controller.rb:
def show
#page = Page.find_by_permalink!(params[:id])
end
After a few months of the site being up, I want to change the permalink of a certain page, however I don't want to lose all the incoming links. I'm thinking I would do this.
First I'd add_colum :new_permalink to the Page model. Then if this :new_permalink attribute was anything but nil or blank, it would pull up a new page in the controller like this:
def show
#page = Page.find_by_permalink!(params[:id])
if !#page.new_permalink.blank?
#page = Page.find_by_permalink!(#page.new_permalink)
end
end
This works, but the url in the browser still shows the old URL. I suppose this might not be so bad, but I think I'd like it to actually forward to the new page. Perhaps, instead of "new_permalink" it should be a new url and actually do a redirect? What would be your best solution for this? And could I make it a 301 redirect?
Yes, you should use a 301 redirect so that both the user and search engines would send the browser to the correct location.
def show
#page = Page.find_by_permalink!(params[:id])
if #page.new_permalink.present?
redirect_to page_path(#page.new_permalink), status: :moved_permanently
return
end
end
Looking for the best way to implement this. Currently I have a "show" page for Users - that shows all of a users' pictures.
def show
#user = User.find(params[:id])
#pictrues = #user.pictures
end
On that page, I have various tabs. When a user clicks on one of those tabs, an ajax call renders a view... particularly, it updates a partial that was previously showing all of a users pictures (and an additional partial for statistics). For the "show comments" example, it updates the partial with all of the pictures a user has commented on:
def show_comments
#user = User.find(params[:id])
#pictures = #user.picture_comments.map{ |p| p.picture }.uniq
respond_to do |format|
format.html
format.js
end
end
The show_comments.js.erb file looks like:
$("#user_content_container").html("<%= escape_javascript render(partial: 'shared/pictures', pictures: #pictures) %>");
$("div.user_header").html("<h4>Comments</h4><br/>");
$("#stat_container").html("<%= escape_javascript render(partial: 'shared/comment_stats', pictures: #pictures) %>");
What I want to do, is to keep the current functionality of the page. But also be able to link directly to the views that are rendered via ajax. For example, have a link on another page that goes directly to the users "show" page, as it is when the "comments" tab is clicked on.
I have a few ideas, but an not sure what the "cleanest" way of doing this would be. Let me know if you need any additional clarification, b/c I'm honestly having as difficult time wording this question, as I am in finding the best way to implement this!
This sounds like something that you might be able to solve using turbolinks. If you can update your app to use Rails 4, you get this bundled in. Otherwise, you can use the gem. For more information on how to do this, watch the railscast on turbolinks.
If you don't want to or can't use them, you could also try passing params in the url, and check for them when the page is loaded. You could use the params to modify the page in the same way that it would be modified after the AJAX call.
From the list view of my app, I can view a list of records or drill down and edit/update a record. After updating, I want to go directly back to the list view, bypassing a couple of intermediate pages - but I don't simply want to link_to(:action => list) - there's pagination involved. I want to go back to the exact 'list' page I came from. What's the best way? Pass a hidden arg somewhere with the page number? Is there an elegant way to accomplish this?
I'm just going to throw this one out there with the disclaimer that there may be security considerations or existing gems.
On your edit action, you could store the previous page in a session. Then in your update action, redirect to it.
class MyController < ApplicationController
def edit
session[:prev_url] = request.referer
end
def update
redirect_to session[:prev_url]
end
end
As an alternative to use the session, you could carry the referer through the actions using a hidden form field.
class MyController < ApplicationController
def edit
#prev_url = request.referer
end
def update
redirect_to params[:prev_url]
end
end
Form using hidden_field:
f.hidden_field :prev_url, :value => #prev_url
If you do not want to carry along the whole referer url you could also do the same with the page parameter instead and append the parameter to the url in the update action. I would also expect Rails' url helpers to accept parameters.