Displaying 20 results from an estimated 10000 matches similar to: "Yet another send_data :image question..."
2008 Jul 05
18
Java Bridge Itext Example Anyone?
I MAY be able to derive something out of the present example given here
:
http://blog.codeinmotion.com/index.php/2006/12/22/pdf-generation-in-ruby-on-rails/
but this deals with filling out forms. Is there a simpler example that
just allows you to talk to itext , send it some plain text and get back
a pdf and then send that pdf to the user as downloadable / renderable
data?
--
Posted via
2008 Oct 08
11
Using image_tag and send_data
I am using image_tag to load an image that I''ve saved to the database
(using attachment_fu if you''re curious but that''s probably not
relevant here):
VIEW
<%= image_tag ''/photo/get_image/5'' %>
CONTROLLER
def get_image
@photo=Photo.find(params[:id])
send_data(DbFile.find(@photo.db_file_id).data,
:type =>
2006 Jan 09
6
Rendering dynamic Gruff image (send_data)
Dears,
Got a controller witch do a send_data for displaying a chart.
like :
send_data(g.to_blob, :filename => "any.png", :type => ''image/png'',
:disposition=> ''inline'')
I actually do a
<img src="http://myhost:3000/stats/make_graph" />
Is there any way more clean to do that ? At minima don''t hardcode the
beginning
2007 Apr 09
6
gruff send_data
Hi,
for those with experience of Gruff module: suppose I want to send
image from server straight to the browser (as example on gruff web
site):
send_data(g.to_blob,
:disposition => ''inline'',
:type => ''image/png'',
:filename => "gruff.png")
the server seems sending this binary data ok, but I am having
2006 May 22
2
Problem with send_data and csv file produced
hi, i did a search and couldn''t find wat''s the problem with my code...
it seems everything is the same and the result is what i expected but i
am not sure where went wrong....
using send_data function to send the csv file to the client, the file
sending is successfully but when i opened the csv file, something is
wrong...
every statement got a "......" inverted
2007 Jun 07
6
Can't download files with send_data or send_file
I have a form_remote_tag that calls a method to print out a csv file
for download. If I tell the form_remote_tag to update a div the data
comes up in that div, but otherwise I can''t get the browser to
acknowledge the sent file.
>From view:
<%= form_remote_tag :url => {:action => "csv_dump" }%>
<%= submit_tag "Download Complete List" ,:name
2009 Nov 08
2
send_data with jpeg not working
I''m a newbie having trouble using send_data to send a jpeg file to the
browser for display in an html img tag. This is the relevant code
from my controller (photos_controller.rb):
def retrieve
@photo = Photo.find(params[:id])
send_data File.read(@photo.abs_img_path), :type => "image/
jpeg", :disposition => "inline"
end
def download
@photo =
2010 Apr 29
2
send_data => invalid byte sequence in US-ASCII
I''m trying to display a generated .png plot via send_data(), but it
results in a server error "invalid byte sequence in US-ASCII" error.
I''m pretty sure this means that I need to specify the encoding
somewhere, but I haven''t been able to figure out where or how to do so.
Some particulars:
I''m running gnuplot through a pipe to generate a plot in .png
2006 Jul 05
1
send_data image
I''m trying to display an image in a view from MySQL, but I''m not sure
where to put the send_data call.
Any help would be great. :)
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2010 Dec 22
0
image_tag and send_data
i''m storing images in database.
i have this action in controller:
def image
begin
item = StoredItem.find(:first, :conditions => {:id =>
params[:id]})
rescue
return
end
return if item.nil?
if item.image_binary.nil?
render :nothing => true
else
send_data(item.image_binary, :type => item.image_datatype,
:disposition =>
2010 Apr 14
4
module/class question
Are these two below the same thing?
1. module X
module Y
class Z
2. class X::Y::Z
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2006 Jul 07
3
quick send_data question...
Hi,
I am using send_data to allow users to download files from the database
but ran into a small problem, it seems that files upload fine but when
they download only 64kb of the file is sent.
I''m using the basic rails code from the Agile book:
#upload code in my sheet model
def file=(document_field)
self.filename = base_part_of(document_field.original_filename)
2006 May 18
7
Server out to excel
How would one server out to excel a html table with the mime/content
type
application/vnd.ms-excel ?
In PHP it would be something like
?php
header("Content-Type: application/vnd.ms-excel");
------
But how do I do this in rails?
Cheers Glenn
--
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2006 Mar 04
13
file_column
Restricting size of an uploaded file, is how is that possible? If I
do not want a user to upload a file larger than X bytes, can it
easily be done?
If I also would like restrict the types of files that can be
uploaded, how may I do so?
Thank you,
Sharkie
2006 Sep 08
4
Does acts_as_attachment :storage => :db_system work?
I found the post about needing to install acts_as_attachement_1_1_6 if
you are not on edge rails. But I am having trouble getting db_system
storage to work. As far as I can tell in from the database, things are
working, but I don''t see how my model table hooks up with the db_files
table so I am having trouble altering the image_tag from the tutorial
2006 Apr 05
1
send_file VS. send_data (performance)
Does anybody know if there is a big performance/time cost difference
between these two methods of serving a file:
------------------------------- #1
-----------------------------------------
send_file "test.png", :type => ''image/png'', :disposition => ''inline''
-------------------------------
#2------------------------------------------
2008 Nov 03
3
MS-SQL deliveres binary image as array
Hello!
I need to display images stored in a MS-SQL database but I get the
following error:
NoMethodError (undefined method `unpack'' for #<Array:0x48cbff0>):
c:/ruby/lib/ruby/1.8/base64.rb:59:in `decode64''
I guess its because MS-SQL delivers an arry...
Is there a solution to this problem??
Please help me!
lacky
--
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2007 Mar 28
3
attachment_fu Not Resizing
Hello,
Recently attachment_fu stopped resizing images for me. I''m puzzled
because before today it was resizing them and I don''t know what''s
changed. Here''s my code:
class Product < ActiveRecord::Base
has_attachment :content_type => :image,
:storage => :file_system,
:max_size => 18.megabytes,
2010 Nov 03
2
send_file but not send_data?
So this is the original code I used, and it worked
send_file ''vendor/sprites/not-found.png'', {:filename =>
"sprite-not-found.png", :type => "image/png", :disposition => "inline"}
Now I switched it to this (going to be adding imageMagick)
send_data File.read(''vendor/sprites/not-found.png''), {:filename =>
2006 Sep 12
2
Generate JS from RoR - strange delay with send_data
Hi!
I need to generate some JS from Ruby. This is no AJAX related stuff so
RJS templates are not help to me. Also I want to not mix JS with HTML,
so putting JS in .rhtml templates is no go for me.
Currently I made some action in controller, prepared JS code and I''m
sending it via send_data as ''text/javascript''. In .rhtml templates I use
<script> tag with src