So I\'m using Active Storage to upload multiple images attached to a Collection model. Everything works well except whenever I\'m trying to purge/delete a single attachment
Okay I sort of solved my problem but I don't really understand what's happening.
Whenever I click on the "Remove" button I get this error:
It wants to redirect to the collection_url with ID 43 (while the ID of my collection is actually 6, 43 is probably the ID of the image attachment).
When I reload the same collection page manually, the picture is gone (so it sort of works) but nothing of this is ofcourse ideal.
Does someone know how I can improve my code so that the redirect_to in my controller points to the current collection ID instead of the Activestorage image attachment ID?
View: collection/show.html.erb:
<% @collection.images.each do |image| %>
<%= image_tag(image) %>
<%= link_to 'Remove', delete_image_attachment_collection_url(image),
method: :delete,
data: { confirm: 'Are you sure?' } %>
<% end %>
Controller: collections_controller.rb
class CollectionsController < ApplicationController
before_action :set_collection, only: [:show, :edit, :update, :destroy]
before_action :set_collections
# GET /collections
# GET /collections.json
def index
end
# GET /collections/1
# GET /collections/1.json
def show
end
# GET /collections/new
def new
@collection = Collection.new
end
# GET /collections/1/edit
def edit
end
# POST /collections
# POST /collections.json
def create
@collection = Collection.new(collection_params)
respond_to do |format|
if @collection.save
format.html { redirect_to @collection, notice: 'Fotocollectie is aangemaakt.' }
format.json { render :show, status: :created, location: @collection }
else
format.html { render :new }
format.json { render json: @collection.errors, status: :unprocessable_entity }
end
end
# collection = Collection.create!(collection_params)
# redirect_to collection
end
# PATCH/PUT /collections/1
# PATCH/PUT /collections/1.json
def update
respond_to do |format|
if @collection.update(collection_params)
format.html { redirect_to @collection, notice: 'Fotocollectie is bijgewerkt.' }
format.json { render :show, status: :ok, location: @collection }
else
format.html { render :edit }
format.json { render json: @collection.errors, status: :unprocessable_entity }
end
end
end
# DELETE /collections/1
# DELETE /collections/1.json
def destroy
@collection.destroy
respond_to do |format|
format.html { redirect_to collections_url, notice: 'Fotocollectie is verwijderd.' }
format.json { head :no_content }
end
end
def delete_image_attachment
@image = ActiveStorage::Attachment.find(params[:id])
@image.purge
redirect_to @current_page
end
private
# Use callbacks to share common setup or constraints between actions.
def set_collection
@collection = Collection.find(params[:id])
end
def set_collections
@collections = Collection.all
end
# Never trust parameters from the scary internet, only allow the white list through.
def collection_params
params.require(:collection).permit(:title, :order, images: [])
end
end
Model: collection.rb
class Collection < ApplicationRecord
has_many_attached :images
end
Routes: routes.rb
Rails.application.routes.draw do
root 'home#index'
get 'about', to: 'pages#about', as: :about
get 'contact', to: 'pages#contact', as: :contact
get 'settings', to: 'settings#edit'
resource :setting
resources :collections do
member do
delete :delete_image_attachment
end
end
end