Carrierwave multiple image upload
I'm using multiple file uploads from the master branch and PostgreSQL My product model hast a string field called "images" and I can attach multiple images just fine.
What I can't figure out though, how can I remove one image from the products? I can remove all images as described in the docs:
product.remove_images!
product.save
but didn't find a way how to remove a single image.
Have you considered using a nested form for to try to delete an image?
Here is a piece of code from carrierwave's github site...
<%= form_for @product, html: { multipart: true } do |f| %>
.
.
.
<label>
<%= f.check_box :remove_images %>
Remove images
</label>
<% end %>
...which I am sure you have seen. Although, of course, calling remove_images! would not work in your case, since that implies a unified action on all images.
Try the following modification of the above and see if it helps you sort this problem and target each image individually...
<%= nested_form_for @product, :html=>{ :multipart => true } do |f| %>
.
.
.
<%= f.fields_for :images do |product_form| %>
<%= product_form.link_to_remove "Remove this image" %>
<% end %>
<% end %>
To make this work make sure to include gem 'nested_form', '~> 0.3.2' in your Gemfile.
Hopefully this helps you out.
I learn from @Cris and use the following code snippet when working with S3.
def remove_image_at_index(index)
remain_images = @product.images # copy the array
deleted_image = remain_images.delete_at(index) # delete the target image
deleted_image.try(:remove!) # delete image from S3
@product.images = remain_images # re-assign back
end
I wrote a blog post about this , and create a sample project with more concrete codes.
You should be able to use remove_image on the specified image (from the array). So you'll need to somehow identify the image first (ex. images[0].remove_image! )
下一篇: Carrierwave多图片上传