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
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
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
[[alternative HTML version deleted]]
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 Nov 04
0
send_data from disk
Hi, I''m trying to use send_data to stream a file that is stored on my disk
(not as a blob in the database.)
So, this is what I''ve tried:
send_data File.new(filename).read
But, the file doesn''t download. I think send_data expects something other
than a String (which is returned by File.read.) Anyone know how to get this
working?
The reason this is being done is to