Images not being replaced

[jptosso]

Hello

I have a document where I try to replace an image without success. The sourcecode to add the image is:

      v.vulnerability_files.where("file_content_type LIKE 'image/%'").each_with_index do |img, ii|
        fname = "/tmp/image-#{SecureRandom.urlsafe_base64}." + img.file.original_filename.split(".")[-1]
        img.file.copy_to_local_file(:original, fname)
        media.push(Sablon.content(:image, fname))
      end

While the document structure is this:

I hope we can find a solution.

Thank you

[stadelmanma]

Hi @asdfuken do you get any kind of error? Or is your placeholder image simply replicated for each item in your media array?

Otherwise your code looks fine to my eyes, assuming the media array you push items to gets added into the context in such a way that vulnerability.media accesses it. The other thing I would check is if you are using the most recent release of sablon or at least one recent enough to support images.

Perhaps you could attach a copy of the problem template where you have removed everything from it except the media loop where you are having issues and I can try to reproduce the problem locally. Assuming that after you remove everything the problem still occurs, if it doesn't I'd try and backtrack what change you made that fixed the problem.

[jptosso]

Hello, I have updated my code as following:

    @vulnerabilities.each_with_index do |v, i|
      data = {
..........
        'media': []
        }
      media = []
      v.files_blobs.where("content_type LIKE 'image/%'").each_with_index do |img, ii|
        fname = "/tmp/image-#{SecureRandom.urlsafe_base64}" 
        File.open(fname, 'wb') do |file|
           file.write(img.download)
        end     
        content = StringIO.new(IO.binread(fname))
        mediadata = Sablon.content(:image, content, filename: "#{SecureRandom.urlsafe_base64}.png")
        media.push({
          :image => mediadata,
          :caption => ""
          })
      end
      data[:media] = media
      vulnerabilities.push(data)
    end
......


    context = {
.......
      vulnerabilities: vulnerabilities,
    }
    template.render_to_file File.expand_path(outfile), context

And for the word document:

This time I have a stack error:

NoMethodError: undefined method `next_element' for nil:NilClass
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/processor/document/blocks.rb:58:in `body'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/processor/document/blocks.rb:97:in `replace'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/operations.rb:128:in `evaluate'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/processor/document.rb:75:in `block in manipulate'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/processor/document.rb:74:in `each'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/processor/document.rb:74:in `manipulate'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/processor/document.rb:61:in `process'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/processor/document/blocks.rb:37:in `process'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/operations.rb:22:in `block in evaluate'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/operations.rb:20:in `each'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/operations.rb:20:in `flat_map'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/operations.rb:20:in `evaluate'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/processor/document.rb:75:in `block in manipulate'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/processor/document.rb:74:in `each'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/processor/document.rb:74:in `manipulate'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/processor/document.rb:61:in `process'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/processor/document/blocks.rb:37:in `process'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/operations.rb:22:in `block in evaluate'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/operations.rb:20:in `each'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/operations.rb:20:in `flat_map'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/operations.rb:20:in `evaluate'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/processor/document.rb:75:in `block in manipulate'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/processor/document.rb:74:in `each'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/processor/document.rb:74:in `manipulate'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/processor/document.rb:61:in `process'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/template.rb:75:in `block (2 levels) in process'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/template.rb:75:in `each'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/template.rb:75:in `block in process'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/template.rb:72:in `each'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/template.rb:72:in `process'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/template.rb:61:in `render'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/template.rb:49:in `render_to_string'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/template.rb:43:in `block in render_to_file'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/template.rb:42:in `open'
	from /usr/local/rvm/gems/ruby-2.4.1/gems/sablon-0.3.0/lib/sablon/template.rb:42:in `render_to_file'
	from /home/ec2-user/environment/ehmanager/app/controllers/ehm/projects_controller.rb:286:in `report

Documento:
error_demo.docx

[stadelmanma]

Going back through old issues and I noticed this appears to be very similar to #109

[stadelmanma]

After doing some investigating I think this is due to the fact I have an each block and its contents all within a single paragraph and then those children get wrapped in a "tmp" node instead of whatever parent node type was being used before. This was discovered from a WordML insertion bug that happened when an entire conditional appeared within a single paragraph.

[stadelmanma]

Closing this as the root of the problem appears to be the same as #109.