I have this in my Rails controller:
def download_clip
send_file "public/output.mp4", :type=>"video/mp4", :filename => "output.mp4", :disposition => 'attachment'
end
and in my HTML code I have this:
Now could somebody tell me why Firefox's download window will NOT pou up, but chrome downloads the file fine? Instead firefox opens a new window and starts playing the file. I WANT THE DOWNLOAD BOX to POPUP. I have spend too much time on it
You are using a relative url, which may not map correctly depending on the page it is used.
Try changing your link to:
<%= link_to "some text", :controller => :your_controller_name, :action => :download_clip %>
If this doesn't help, check if the Content-Diposition response header is being set as 'attachment'. If it is, then the problem is likely with your own Firefox environment and not with the server. Resetting Firefox to defaults should fix that...
Add
headers['Content-Disposition'] = "attachment;"
in your download_clip action..
Related
I have an uploader (internal use only) that will upload an HTML document to a binary column of a table in my client-facing website. The client facing site has an index that allows the user to view the page as a normal website (using send_data h_t.html_code, :type => "html", :disposition => "inline"). I also want to give the user the ability to download a PDF of the page. For that I'm using wicked_pdf.
The entire problem seems to stem from the fact that the data is stored in the database. As strange as it sounds, it is vital to business operations that I get formatting exact. The issue is I can't see any image, and the stylesheets/style tags don't have any effect.
What I've tried-
Gsub-
def show
html = HtmlTranscript.find(params[:id])
html_code = html.html_code.gsub('<img src="/images/bwTranscriptLogo.gif" alt="Logo">','<%= wicked_pdf_image_tag "bwTranscriptLogo.gif" %>')
html_code = html_code.gsub('<link rel="StyleSheet" href="" type="text/css">','<%= wicked_pdf_stylesheet_link_tag "transcripts.css" %>')
transcript = WickedPdf.new.pdf_from_string(html_code)
respond_to do |format|
format.html do
send_data transcript, :type => "pdf", :disposition => "attachment"
end
##### i never could get this part figured out, so if you have a fix for this...
# format.pdf do
# render :pdf => "transcript_for_#{#html.created_at}", :template => "html_transcripts/show.html.erb", :layout => false
# end
end
end
Using a template-
#Controller (above, modified)
html = HtmlTranscript.find(params[:id])
#html_code = html.html_code.gsub('<img src="/images/bwTranscriptLogo.gif" alt="Logo">','<%= wicked_pdf_image_tag "bwTranscriptLogo.gif" %>')
#html_code = #html_code.gsub('<link rel="StyleSheet" href="" type="text/css">','<%= wicked_pdf_stylesheet_link_tag "transcripts.css" %>')
transcript = WickedPdf.new.pdf_from_string(render_to_string(:template => "html_transcripts/show.html.erb", :layout => false))
#view
<!-- tried with stylesheet & image link tags, with wicked_pdf stylesheet & image link tags, with html style & img tags, etc -->
<%= raw(#html_code) %>
And both will generate a transcript- but neither will have style OR image.
Creating an initializer-
module WickedPdfHelper
def wicked_pdf_stylesheet_link_tag(*sources)
sources.collect { |source|
"<style type='text/css'>#{Rails.application.assets.find_asset("#{source}.css")}</style>"
}.join("\n").gsub(/url\(['"](.+)['"]\)(.+)/,%[url("#{wicked_pdf_image_location("\\1")}")\\2]).html_safe
end
def wicked_pdf_image_tag(img, options={})
image_tag wicked_pdf_image_location(img), options
end
def wicked_pdf_image_location(img)
"file://#{Rails.root.join('app', 'assets', 'images', img)}"
end
def wicked_pdf_javascript_src_tag(source)
"<script type='text/javascript'>#{Rails.application.assets.find_asset("#{source}.js").body}</script>"
end
def wicked_pdf_javascript_include_tag(*sources)
sources.collect{ |source| wicked_pdf_javascript_src_tag(source) }.join("\n").html_safe
end
end
did absolutely nothing, and I have no idea what to try next.
As a side note, the code to view the HTML version of the transcript is as follows:
def transcript_data
h_t = HtmlTranscript.find(params[:id])
send_data h_t.html_code, :type => "html", :disposition => "inline"
end
It requires no view, as the html data is stored in the database, but I get image, style, etc. Everything works with the HTML version- just not the PDF.
I'm on ruby 1.8.7 with rails 3.0.20.
Solved-
As it turns out, there was more than one issue at hand.
1- Installation of wkhtmltopdf for Ubuntu via $apt-get install does not quite do the trick for what I wanted...
see http://rubykitchen.in/blog/2013/03/17/pdf-generation-with-rails
(there may have also been an issue with having not previously run sudo apt-get install openssl build-essential xorg libssl-dev libxrender-dev, as when I did, it installed a number of components I did not previously have.)
2- The HTML files I had uploaded contained image & style code that was breaking the formatting. I fixed it with this...
def rm_by_line(which = 0, line1 = 0, line2 = 0)
h_t = HtmlTranscript.find(which)
line_by_line = h_t.html_code.split('
')
for i in line1..line2
line_by_line[i] = ''
end
line_by_line = line_by_line.join('
').strip
return line_by_line
end
Then, all I had to do was pass which lines I wanted to remove.
(I had to split the parens with a carriage return because '\n' didn't function properly when calling 'raw' on the returned string.)
3- wicked_pdf_stylesheet_link_tag and wicked_pdf_image_tag were undefined. I had to inline the style formatting I wanted into a layout I created (turns out wicked_pdf_stylesheet_link_tag used asset pipeline wich my ruby/rails did not implement, which also means I had to get rid of the javascript helpers) and created a helper for wicked_pdf_image_tag, making a switch in the layout for which image tag (image_tag or wicked_pdf_image_tag) to be used.
4- I needed both a .html.erb & a .pdf.erb for my templates, so I made both.
5- Got rid of WickedPdf.new.pdf_from_string in favor of linking to either html or pdf by using :format => 'html' or :format => 'pdf' in the link_to tag.
I have an image of a map.png file on part of a page. I would like this image to be clickable, and then to download the pdf version of that image. I've been using this as a reference Rails 3.1, can't make link_to image_path?, but I'm not sure how to proceed.
It looks like I also need to edit something with the way the page is routed. Thanks for all the help!
Do you have a route to the pdf download or is the file itself a static asset?
You can use a standard link_to helper with an image_tag helper to create a clickable image.
For a static pdf asset:
<%= link_to(image_tag('my_image.png'), 'path/to/filename.pdf') %>
This will show the image my_image.png on the page which when clicked will begin downloading or displaying the static pdf asset.
For a controller action that serves the file:
Page:
<%= link_to(image_tag('my_image.png'), download_pdf_path) %>
Controller:
def download_pdf
send_file 'path/to/filename.pdf'
end
Route:
get 'download_pdf' => 'controller#download_pdf'
This will show the image my_image.png on the page which when clicked will make a get request to the pdf download action.
So I have a simple ajax call to a page:
= link_to 'click me', my_path, :onclick => "if ($('#go').val() == "ok") { alert('going'); } else { return false; }", :remote => true do
This works just fine, I see the alert only when my field with id "go" has ok in there... but the issue is that the remote action triggers every time no matter what.
If this was not a remote link it would work just fine, not going through with the link, but it does not seem to behave the same way with a :remote => true ?
How can I achieve the expected result ?
Thanks,
ALex
The issue here is that the Rails UJS driver will see the data-remote and then perform the action because of a function like this in rails.js so perhaps try setting the property om your link inside the JS and remove the :remote => true. That might work however I dont know if rails.js would bind to that correctly or not.
Also, consider placing this JS in the application.js once you're done debugging just so you dont have inline JS all over your controllers.
To implement Gravatar in my Rails3 application, I'm using the gravatar_image_tag gem in a helper, but I'm having issues when mixing 2 config options:
If the user doesn't have a gravatar attached to his email a default image is rendered; but I want it to reference an external file (e.g., http://www.iconfinder.com/ajax/download/png/?id=43350&s=128 instead of :identicon or others)
I also want the image to be resized on the fly to, let's say 50px.
Independently, both options work as expected, but when I put them together:
def gravatar_for(user, options = { :default => 'http://www.iconfinder.com/ajax/download/png/?id=43350&s=128', :size => 50 })
gravatar_image_tag(user.email.downcase, :alt => user.full_name,
:class => 'gravatar',
:gravatar => options)
end
the size option is not applied, and the gravatar gets rendered in it's full size (128px in this case).
What am I doing wrong, or how can I achieve this combination?
Gravatar will not resize your default image for you. I assume that it just 302s to the ulr gave as a default if it does not find an gravatar for the email you gave it. It looks like the 's' parameter in the iconfinder url is for the size you are trying to grab but that icon does not have a size of 50px available only 128, 256, and 512
Example:
http://www.iconfinder.com/ajax/download/png/?id=43350&s=256
If you wanted a 50px and 80px versions of the icon I would save it to your applications public/image directory as default_gravatar_50.png and default_gravatar_80.png respectively and change your method like so.
end
def gravatar_for(user, options = {})
options = { :size => 50 }.merge(options)
options[:default] = image_tag("default_gravatar_#{options[:size]}.png
gravatar_image_tag(user.email.downcase,
:alt => user.full_name,
:class => 'gravatar',
:gravatar => options)
end
Or if you find an icon on icon finder that is the size(s) you like change the setting of the default option like so.
options[:default] = "http://www.iconfinder.com/ajax/download/png/?id=43350&s=#{options[:size]}"
Iconfinder here. You don't want to link to the download script. Instead just grab the URL to the image it self so you wan't get a lot of header information.
- form_for(#post, :remote => true, :id => 'post_form') do |f|
Works as expected in FF and Chrome, but IE just processes the submit action normally, without any ajax request.
Not really seeing any info on this on the rest of the internet so I imagine I've done something wrong somehow. Ive used both the default rails.js, and the jquery version from the github page
Well, I don't know why the default rails version doesn't work for me here on IE, but I wrote this as a workaround:
if ($.browser.msie) {
var form = $('form#new_post');
form.find('input#post_submit').bind('click', function(){
var data = form.serializeArray();
$.ajax({url: '/posts', type: 'POST', data: data});
return false
});
}
And now it's working correctly. Shouldn't something like this be included in rails.js if this is in fact a problem with Rails, and not something that I've somehow done?
In our Rails 3 app the form tagged as data-remote wasn't turned into an AJAX form any longer after we had upgraded to jquery-rails 1.0.19. IE7 wasn't able to load the jquery.js - there seems to be a problem with version 1.7.1 of jQuery currently. After downgrading to jquery-rails 1.0.18 the problem disappeared again.