Hi all ,
I am very new for ruby. I am using Ajax Request(Rmagick in controller)
for changing image on my DIV but the problem is it refresh for first
time only then after i have to refresh the browser always. If anybody
having any solution, Please let me know . I am posting my code here
Code in rhtml file
···
==================================================================================
<%= form_remote_tag({:url=>{:controller=>'image_builders', :action
=>'index'}, :update =>'photo'})%>
<dl style="width:450px">
<dt>Type</dt>
<!-- form element -->
</dl>
<%= submit_tag 'Create Image' %>
</div>
<!-- End of form -->
<!-- Preview Area -->
<div>
<label><b>Image:</b></label>
<div id="photo" style="width:99%;">
</div>
</div>
<!-- End of Preview Area -->
===============================================================================
code in controller
def index @Rows =20 @Cols = 120 @alpha = params[:alpha].to_i @margin = params[:margin].to_i
if params[:height].to_i >9000 || params[:width].to_i > 9000
if params[:height].to_i >9000
params[:height] = 8999
end
if params[:width].to_i > 9000
params[:width] = 8999
end
end
if params[:height] && params[:width] @Rows =params[:height].to_i @Cols = params[:width].to_i
end @Start = params[:input_field_1] @End = params[:input_field_2]
if params[:type] == 'gradation'
fill = Magick::GradientFill.new(0, 0, 0, @Cols, @Start, @End)
img = Magick::Image.new(@Rows, @Cols, fill)
img.opacity = @alpha/ 127.0 * Magick::TransparentOpacity if @alpha != 0
img_new = img.rotate(90)
if params[:reverse]
img_rev = img_new.rotate(270)
img_rev.write("public/images/xyz.jpg")
render :text => "<img src='/images/xyz.jpg' />"
else
img_new.write("public/images/xyz.jpg")
render :text => "<img src='/images/xyz.jpg' />"
end
end
end
pls ask these q's in the rubyonrails forums/lists.
···
On Jan 16, 2009, at 07:25 , Kumar Saurav wrote:
I am very new for ruby. I am using Ajax Request(Rmagick in controller)
for changing image on my DIV but the problem is it refresh for first
time only then after i have to refresh the browser always. If anybody
having any solution, Please let me know . I am posting my code here
I am using Ajax Request(Rmagick in controller)
for changing image on my DIV but the problem is it refresh for first
time only
[...]
render :text => "<img src='/images/xyz.jpg' />"
Perhaps the browser caches this image. The browser isn't aware that it
has changed. I suggest you add some random string to the image's URL.
E.g. /image/xyz.jpg?56543653.
I am very new for ruby. I am using Ajax Request(Rmagick in controller)
for changing image on my DIV but the problem is it refresh for first
time only then after i have to refresh the browser always. If anybody
having any solution, Please let me know . I am posting my code here
pls ask these q's in the rubyonrails forums/lists.
I don't have access of that forum due to lost of the password and i
think it belongs to this forum also so i put it here.
Thanks
--
Posted via http://www.ruby-forum.com/\.
I am using Ajax Request(Rmagick in controller)
for changing image on my DIV but the problem is it refresh for first
time only
[...]
render :text => "<img src='/images/xyz.jpg' />"
Perhaps the browser caches this image. The browser isn't aware that it
has changed. I suggest you add some random string to the image's URL.
E.g. /image/xyz.jpg?56543653.
Hi i just hard code the path like "public/images/xyz.jpg?1234" but after
that i get the following error
no encode delegate for this image format `public/images/xyz.jpg?1234'
Perhaps the browser caches this image. The browser isn't aware that it has changed. I suggest you add some random string to the image's URL. E.g. /image/xyz.jpg?56543653.
Why not use image_path()? Then the number is not random, but a time signature, right?
I am very new for ruby. I am using Ajax Request(Rmagick in controller)
for changing image on my DIV but the problem is it refresh for first
time only then after i have to refresh the browser always. If anybody
having any solution, Please let me know . I am posting my code here
pls ask these q's in the rubyonrails forums/lists.
I don't have access of that forum due to lost of the password and i
think it belongs to this forum also so i put it here.
Thanks
Perhaps the browser caches this image. The browser isn't aware that it
has changed. I suggest you add some random string to the image's URL.
E.g. /image/xyz.jpg?56543653.
Hi i just hard code the path like "public/images/xyz.jpg?1234" but after
that i get the following error
no encode delegate for this image format `public/images/xyz.jpg?1234'
You added that random string in img_rev.write(). No good. Add it to the
URL. In other words, add it in the <img> tag. You need to send the
browser '<img src="pic.jpg?some-changing-string">' instead of just '<img
src="pic.jpg">'.
or (non-AJAX): <META HTTP-EQUIV="Refresh" CONTENT="300">
···
On Jan 17, 2:33 am, Kumar Saurav <sau...@cipher-tech.com> wrote:
Kumar Saurav wrote:
> Ryan Davis wrote:
>> On Jan 16, 2009, at 07:25 , Kumar Saurav wrote:
>>> I am very new for ruby. I am using Ajax Request(Rmagick in controller)
>>> for changing image on my DIV but the problem is it refresh for first
>>> time only then after i have to refresh the browser always. If anybody
>>> having any solution, Please let me know . I am posting my code here
>> pls ask these q's in the rubyonrails forums/lists.
> I don't have access of that forum due to lost of the password and i
> think it belongs to this forum also so i put it here.
> Thanks
Sorry i misunderstood.
Thanks for the suggestion
--
Posted viahttp://www.ruby-forum.com/.
So please help me how can i add any random string after the URL
Please let me help ...
this DOES NOT belong on this list.
I'm not sure it doesn't belong here. It's an HTML/HTTP issue, not a
Rails one. It doesn't involve the Rails API, AFAICS. But I'll submit to
your judgment and forward Kumar to that other list in my next reply.
--
Posted via http://www.ruby-forum.com/\.
Perhaps the browser caches this image. The browser isn't aware that it
has changed. I suggest you add some random string to the image's URL.
E.g. /image/xyz.jpg?56543653.
Hi i just hard code the path like "public/images/xyz.jpg?1234" but after
that i get the following error
no encode delegate for this image format `public/images/xyz.jpg?1234'
You added that random string in img_rev.write(). No good. Add it to the
URL. In other words, add it in the <img> tag. You need to send the
browser '<img src="pic.jpg?some-changing-string">' instead of just '<img
src="pic.jpg">'.
Hi i solved out that problem through your suggestion
Thanks. Thanks a lot
And Hi Ryan
I am ensuring you that i will try to post in the right list