In my users photo album page they see photos they have uploaded and each photo has a 'make default' link on it.
When the user clicks make default, then the id of the photo is stored in the photo_id column of my profiles table.
The issue is redirecting them back to:
localhost:3000/settings/photo_gallery/:id
Is there a way I can redirect back to the photo album using the id of the photo that has just been set as the default? Can Rails find what album I want to redirect to just by looking at the id of a photo, as a photo belongs to a photo album, and a photo album has many photos?
I have the following tables in my database:
- User(s): has one profile, has many PhotoAlbums
- Profile(s): belongs to user
- PhotoAlbum(s): belongs to user, has many photos
- Photo(s): belongs to PhotoAlbum
Controller action:
def set_default_profile_photo
photo = Profile.find_by_user_id(current_user.id)
photo.photo_id = params[:photo_id]
photo.save
redirect_to "**HERE IS WHERE I'D LIKE TO REDIRECT TO THE PHOTOALBUM THE PHOTO IS IN**"
flash[:success] = "Default photo set!"
end
My routes:
users GET /users(.:format) {:action=>"index", :controller=>"users"}
POST /users(.:format) {:action=>"create", :controller=>"users"}
new_user GET /users/new(.:format) {:action=>"new", :controller=>"users"}
edit_user GET /users/:id/edit(.:format) {:action=>"edit", :controller=>"users"}
user GET /users/:id(.:format) {:action=>"show", :controller=>"users"}
PUT /users/:id(.:format) {:action=>"update", :controller=>"users"}
DELETE /users/:id(.:format) {:action=>"destroy", :controller=>"users"}
sessions GET /sessions(.:format) {:action=>"index", :controller=>"sessions"}
POST /sessions(.:format) {:action=>"create", :controller=>"sessions"}
new_session GET /sessions/new(.:format) {:action=>"new", :controller=>"sessions"}
edit_session GET /sessions/:id/edit(.:format) {:action=>"edit", :controller=>"sessions"}
session GET /sessions/:id(.:format) {:action=>"show", :controller=>"sessions"}
PUT /sessions/:id(.:format) {:action=>"update", :controller=>"sessions"}
DELETE /sessions/:id(.:format) {:action=>"destroy", :controller=>"sessions"}
passwords GET /passwords(.:format) {:action=>"index", :controller=>"passwords"}
POST /passwords(.:format) {:action=>"create", :controller=>"passwords"}
new_password GET /passwords/new(.:format) {:action=>"new", :controller=>"passwords"}
edit_password GET /passwords/:id/edit(.:format) {:action=>"edit", :controller=>"passwords"}
password GET /passwords/:id(.:format) {:action=>"show", :controller=>"passwords"}
PUT /passwords/:id(.:format) {:action=>"update", :controller=>"passwords"}
DELETE /passwords/:id(.:format) {:action=>"destroy", :controller=>"passwords"}
profiles GET /profiles(.:format) {:action=>"index", :controller=>"profiles"}
POST /profiles(.:format) {:action=>"create", :controller=>"profiles"}
new_profile GET /profiles/new(.:format) {:action=>"new", :controller=>"profiles"}
edit_profile GET /profiles/:id/edit(.:format) {:action=>"edit", :controller=>"profiles"}
profile GET /profiles/:id(.:format) {:action=>"show", :controller=>"profiles"}
PUT /profiles/:id(.:format) {:action=>"update", :controller=>"profiles"}
DELETE /profiles/:id(.:format) {:action=>"destroy", :controller=>"profiles"}
emails GET /emails(.:format) {:action=>"index", :controller=>"emails"}
POST /emails(.:format) {:action=>"create", :controller=>"emails"}
new_email GET /emails/new(.:format) {:action=>"new", :controller=>"emails"}
edit_email GET /emails/:id/edit(.:format) {:action=>"edit", :controller=>"emails"}
email GET /emails/:id(.:format) {:action=>"show", :controller=>"emails"}
PUT /emails/:id(.:format) {:action=>"update", :controller=>"emails"}
DELETE /emails/:id(.:format) {:action=>"destroy", :controller=>"emails"}
root / {:controller=>"users", :action=>"new"}
success /success(.:format) {:action=>"success", :controller=>"users"}
login /login(.:format) {:action=>"new", :controller=>"sessions"}
logout /logout(.:format) {:action=>"destroy", :controller=>"sessions"}
reset_password /reset_password(.:format) {:action=>"new", :controller=>"passwords"}
setup_new_password /setup_new_password(.:format) {:action=>"edit", :controller=>"passwords"}
settings /settings(.:format) {:action=>"settings", :controller=>"users"}
settings_account /settings/account(.:format) {:controller=>"users", :action=>"account"}
settings_edit_profile /settings/edit_profile(.:format) {:controller=>"profiles", :action=>"edit_profile"}
/:username(.:format) {:controller=>"users", :action=>"show"}
change_password /change_password(.:format) {:action=>"change_password", :controller=>"users"}
profile_photo_set_default /profile_photo/set_default(.:format) {:controller=>"photo_albums", :action=>"set_default_profile_photo"}
album_photo_set_default /album_photo/set_default(.:format) {:controller=>"photo_albums", :action=>"set_default_album_photo"}
photo_albums GET /settings/photo_gallery(.:format) {:action=>"index", :controller=>"photo_albums"}
POST /settings/photo_gallery(.:format) {:action=>"create", :controller=>"photo_albums"}
new_photo_album GET /settings/photo_gallery/new(.:format) {:action=>"new", :controller=>"photo_albums"}
edit_photo_album GET /settings/photo_gallery/:id/edit(.:format) {:action=>"edit", :controller=>"photo_albums"}
photo_album GET /settings/photo_gallery/:id(.:format) {:action=>"show", :controller=>"photo_albums"}
PUT /settings/photo_gallery/:id(.:format) {:action=>"update", :controller=>"photo_albums"}
DELETE /settings/photo_gallery/:id(.:format) {:action=>"destroy", :controller=>"photo_albums"}
photos GET /settings/photo_gallery/photos(.:format) {:action=>"index", :controller=>"photos"}
POST /settings/photo_gallery/photos(.:format) {:action=>"create", :controller=>"photos"}
new_photo GET /settings/photo_gallery/photos/new(.:format) {:action=>"new", :controller=>"photos"}
edit_photo GET /settings/photo_gallery/photos/:id/edit(.:format) {:action=>"edit", :controller=>"photos"}
photo GET /settings/photo_gallery/photos/:id(.:format) {:action=>"show", :controller=>"photos"}
PUT /settings/photo_gallery/photos/:id(.:format) {:action=>"update", :controller=>"photos"}
DELETE /settings/photo_gallery/photos/:id(.:format) {:action=>"destroy", :controller=>"photos"}
redirect_to :back worked for me but I want to see if this was the right choice
http://api.rubyonrails.org/files/actionpack/lib/action_controller/metal/redirecting_rb.html
This is what you want:
redirect_to request.referrer
For further reference: http://en.wikipedia.org/wiki/HTTP_referer
In Rails 5 it was introduced the function:
redirect_back(fallback_location: root_path)
It does redirect back whenever the HTTP_REFERER is known. Otherwise it redirects to the fallback_location.
The redirect_to :back is deprecated and will be removed from Rails 5.1.
In one project we used the session for temporary storage, because redirect_to :back did not work for us.
We had an def new where we set session[:return_to] = request.referer
in the def create we added redirect_to session[:return_to].
I do not know anymore, why we could not use redirect_to :back
If you came from the photo_album page, you should be able to do:
redirect_to :back
Otherwise, you should be able to do a named route like:
redirect_to photo_album_path(photo.album_id) # or whatever the association key is
BTW, why do you have photo_albums mapping to photo_galleries? It's a lot less confusing if you named your resources and routes in a similiar manner. ie: if you wanted your route endpoints to use /photo_galleries you should name your resource PhotoGallery.
There is also this handy way to deal with it.
render :nothing => true
来源：https://stackoverflow.com/questions/8952487/how-do-i-redirect-back-to-a-page-im-currently-on