Displaying 20 results from an estimated 4000 matches similar to: "Displaying images from PostgreSQL large objects"
2005 Mar 08
3
Extracting images from a DB
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I would like to extract an image BLOB from my database and display it
alongside some other information on my ''edit'' page. I read the
information here
http://wiki.rubyonrails.com/rails/show/HowtoUploadFiles
and that was really helpful.
However, it still isn''t clear to me how I would get access to the image
in my views if
2007 Mar 04
3
Dynamically setting the image directory used by attachment_fu
It took me a while to figure this out and I don''t see any wiki pages
for attachment_fu so I figure I would just post this here.
I didn''t like the way attachment_fu by default creates directories
under a given directory for a specific class e.g.
item_image/1/img_1.jpg
item_image/1/img_1_thumb.jpg
item_image/2/img_2.jpg
item_image/2/img_2_thumb.jpg
item_image/3/img_3.jpg
2006 Jan 10
3
Serving lots of images to only registred users
Hello guys,
I am building a photo website and I have some questions before I really
start programming the site.
My system will be Debian + lighttpd + mysql +fastcgi + ImageMagick
I plan to use file_column for image handling/verification and thumbnail
creation.
My question is;
I need to store images in a place outside of webroot so only registered
members can see them. To serve them secure
2006 Apr 18
6
Postgresql and ActiveRecords problems
Hi all. I have a problem with postgresql PK columns and ActiveRecord.
The error is: PGError: ERROR: null value in column "item_id" violates
not-null.
Ok, it''s wrong to insert NULL into PK columns, but rails doing it. How
to fix? So sad..
2007 Aug 23
0
active scaffold polymorphic model
Hi
I am trying to use active scaffold to build a polymorphic model .
I have a number of models that can be featured and I have a Feature model
that belongs_to :item, :polymorphic => true
In my config.columns I include :item_type and item_id, I also added
:item_name to show the name of the record in the form.
In the form, when a type of model is selected I populate the select box for
2007 Feb 16
0
displaying images from this controllers code
Hi,
Im pretty new to rails so please excuse me if this is a trivial question
to most of you :)
Im making use of the following code that I came accross which allows me
to go and feed amazons alexa service a url and it returns a thumbnaill.
class AmazonController < ApplicationController
layout ''default''
def index
require ''cgi''
require
2005 Mar 10
6
images from database + caching
Is the information in
http://wiki.rubyonrails.com/rails/show/HowtoUploadFiles on caching
images still the best way on how to cache images that are served from
the database?
I haven''t added time information to my image table yet, and the images
are sent after every single page view (even if it''s been downloaded
already).
Joe
2013 Jan 25
3
how to delete the null elements in list
HI,
I have the list:
> suu
[[1]]
NULL
[[2]]
NULL
[[3]]
item_id prod
1 2
[[4]]
item_id prod
1 2
2 4
how to delete all "NULL" elements from suu to get only
>suu
[[3]]
item_id prod
1 2
[[4]]
item_id prod
1 2
2 4
??
Kind regards,
Tammy
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2006 Dec 11
2
join and sort on 'best match'
Hi Everybody,
I have been breaking my head on the following problem: how to join 2
tables and sort the results on the best match.
explanation:
- there are 3 tables, items, tags and items_tags. The items_tags table
links items to tags.
- I have one item which has certain tags, and I want to look up all the
other items that have those tags as well
- results should be sorted and presented by
2008 Apr 15
4
trouble streaming images with send_data
Hi
I''m doing some server-side graphics with Java2D and I''m trying to
stream the resulting image to the browser using send_data. When I try
to view the image that I streamed, the browser just shows the URL in
the window as a very small image (about .4 kb) when I am using jpeg
format. For png, it tells me that the image has errors and can''t load
it.
Here''s what
2006 Dec 05
0
[779] trunk/wxruby2: Added TreeCtrl#traverse method and documentation
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><meta http-equiv="content-type" content="text/html; charset=utf-8" /><style type="text/css"><!--
#msg dl { border: 1px #006 solid; background: #369; padding:
2006 Mar 07
0
Making AR attriibutes private
Hi,
Can anyone tell me the syntax to make AR attributes private so that they
can only be set through an object''s constructor?
I want do something like this, where item_id and rated_by are private
and set only through the constructor:
# Schema as of Mon Mar 06 21:22:59 BRT 2006 (schema version 15)
#
# id :integer(11) not null
# item_id :integer(11)
2006 Dec 23
0
[797] trunk/wxruby2/swig/classes/TreeCtrl.i: Traverse method moved to wxSugar
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><meta http-equiv="content-type" content="text/html; charset=utf-8" /><style type="text/css"><!--
#msg dl { border: 1px #006 solid; background: #369; padding:
2006 Jun 27
2
Serve an image up from an action
What I am really trying to do is use the file_column plugin for the file
uplaod/storage (to a non-application directory), but serve up the images
on my own (without the mage_tag url_for_file_column technique)
In the java world, I would simply do something like this:
<img src="myImageServlet?id=1">
and myImageServlet would simply return the appropriate mime headers and
data
2006 Mar 22
1
updating multiple attributes
I have a store administration tool I''m trying to build.
One view is an item view. Each item can have many attributes.
Example:
item: bike
item_id: 2333
attribute: id: 3 #auto-increment
item_id: 2333 #primary key
attribute_type: wheels #a type of attribute
attribute_order: 1 #the order it
2016 Sep 08
1
[PATCH] virt-v2v: Support for ova exported from AWS [v2]
1. AWS the name tag is not mandatory - using default as a name
2. AWD doesn't prefix 'ovf:' as prefix to disk path
There is an open bug for oVirt:
https://bugzilla.redhat.com/show_bug.cgi?id=1371843
Signed-off-by: Shahar Havivi <shaharh@redhat.com>
---
v2v/input_ova.ml | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/v2v/input_ova.ml
2006 Apr 20
3
How to restrict access to images by user?
Hi,
I have a some image files that belongs to some users. Only the owner of an
image should be able to see it.
How can I do that?
I don''t think I can use send_data, because I want the image to be displayed
on a "rendered" page. I don''t think I can place the images in the public
folder, because if some user can figure out the name of the image then he''ll
be
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
2016 Sep 06
2
[PATCH] virt-v2v: Support for ova exported from AWS
1. AWS the name tag is not mandatory - using default as a name
2. AWD doesn't prefix 'ovf:' as prefix to disk path
There is an open bug for oVirt:
https://bugzilla.redhat.com/show_bug.cgi?id=1371843
Signed-off-by: Shahar Havivi <shaharh@redhat.com>
---
v2v/input_ova.ml | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/v2v/input_ova.ml
2006 Jun 30
1
delay displaying rmagick resizing of uploaded images
Hi,
I am using rmagick to resize a copy of uploaded images and display the
copy as a thumbnail. Once the upload is processed it redirects the user
to a page that should display the thumbnail to the user. The problem is
that the rmagick resize function seems to keep going in the background
after handing the new images url (and control) back to rails, which then
happily renders the page with