Displaying 20 results from an estimated 300 matches similar to: "Two-way eager loading?"
2010 Oct 25
1
A few fixes to eager loading issues
Hey all,
I''d really appreciate some eyes on https://rails.lighthouseapp.com/projects/8994-ruby-on-rails/tickets/5845-activerecord-3-eager-loading-fail#ticket-5845-19. There''s a small issue in Rails 3 eager loading, and this ticket has an accompanying patch.
Sssociations that show up twice in a Relation chain like:
Article.includes(:comments).includes(:comments =>
2009 Oct 08
6
Eager Loading a Relationship That Has No PK/FK
I''m attempting to wrestle an old DB into Rails.
This relationship is giving me trouble:
class Show < AR::Base
has_many :segments
end
class Segment < AR::Base
belongs_to :show
has_one :media #this has no PK/FK relation
end
A Segment is "linked" to Media by Media.name, which is the result of
concatenating Segment.name and Segment.part. As I said there are is no
2006 Aug 09
7
function before_save
Hi everybody
I would like a function as the "before_save" method in the model. But it
must be the opposite. When I take out data from the database through the
model, I want to call a function before the data are available in the
controller.
Can anyone help me?
---- >>>> thx <<<< ----
--
Posted via http://www.ruby-forum.com/.
2008 Nov 12
5
dynamic condition for has_one and eager loading issue
Hi,
I ve defined the following relation in one of my models with a dynamic
where condition:
has_one :selection,
:foreign_key => ''object_id'',
:conditions => ''selection_type = 1 and account_id = #
{self.send(:account_id)}''
That works perfect, however when I try to eager load that relation I
am getting the following error when doing a
2012 Dec 24
4
Bad idea to add/remove associations in after_find
I have 2 distinct types of users (artists and curators) in my system and
they currently share all associations (eg has_one :portfolio).
However, a curator shouldn''t have a portfolio so I would like to only
add that association when required. Obviously I could just return nil
for that method, but it doesn''t feel right having that there in the
first place.
What''s the best
2006 Apr 18
12
Formatting data drawn from a DB
Question for all:
Right now i have a Table in a mySQL DB that has a row called
Ingredients. When the data is entered into the DB its enter like so
from a text area:
1 1/2 lbs. beef top sirloin, thinly sliced
1/3 cup white sugar
1/3 cup rice wine vinegar
2 tablespoons frozen OJ concentrate
1 teaspoon salt
1 tablespoon soy sauce
1 cup long grain rice
2 cups water
1/4 cup cornstarch
2 teaspoons
2006 Feb 11
5
after_(read|find) callback?
I am pondering the possibility of encrypting/decrypting some fields
in a SQLite backend on-the-fly.
The point of the message is not security, I know that''s broken, but
whether there''s a technique that provides on-the-fly save/read
filters. Of course the solution would need to work transparently in
joins, so
user.posts.last.title
would do the right thing if title
2006 Jun 21
3
[PLUG] new plugin, acts_as_modified
Nothing special, just my first plugin. it came out of a request I saw on
the list from someone who wanted to be able to tell if a model''s attributes
had changed prior to being saved. Well, this plugin does just that (at
least I hope it does).
http://rubyforge.org/projects/actsasmodified/
Please see the README for details. Constructive comments and criticisms are
appreciated.
Chris
2007 Mar 04
4
Rails functional testing and Mocha
I''ve always wanted to be able to do stuff like this in my functional
tests
c = customers(:customer_1)
c.expects(:great_customer_service)
post :service_customer, :id => c.id
This of course fails because inside the rails action a different
instance of customer is used. Some of the time setting your
expectation/stubbing on Customer.any_instance works, but it''s not
2006 Jun 26
1
plugin, acts_as_modified 1.1.2
After a couple of thoughtful comments, I''ve made changes to
acts_as_modified plugin. It no longer relies on after_find and
after_initialize, which were both causing performance issues.
Please check it out and let me know what you think, where you might
recommend improvements or additional features and what not.
One feature I do have planned (again, thanks to comments), but
2007 Mar 18
5
Automatically mocking ActiveRecord methods
Seems like I do a fair amount of mocking ActiveRecord''s automatically
generated routines when I''m testing controllers. Things like:
@portalspace = PortalSpace.new :public_readable => true,
:public_writable => true, :name => ''public''
@portalspace.stubs(:id).returns(203)
PortalSpace.stubs(:find).with(203).returns(@portalspace)
2006 Jul 07
4
Calling a method each time an ActiveRecord Object is accessd
Hi,
I know that it is possible to execute code each time data is saved into
a model by using the +validate+ method.
However, is there also a way to execute code each time the data is
accessed, not just when it is changed?
Bye,
Winsmith
--
Posted via http://www.ruby-forum.com/.
2006 Apr 03
1
Why no call to Model.new on find?
I created a model with some internal state derived from a combination of
database and non-database data. Since I wanted to calculate these values
once rather than every time they''re requested by the view, I calculated
them in the initialize method and set some instance variables. However,
I soon noticed that these values weren''t getting set when I retrieved
data using the
2005 Nov 27
1
Comparing field's old value to new value
I want to expire caches if a certain field of an item changes. How can I compare the item field''s
old value to its new value (in the create, or after_save, etc. method)?
thanks
csn
__________________________________
Yahoo! Mail - PC Magazine Editors'' Choice 2005
http://mail.yahoo.com
2006 Apr 21
11
Phone Numbers in Rails/MySQL
Is there any easy way to make a fancy looking form to take phone
numbers. Something that looks like this:
[ ] - [ ] - [ ] ext: [ ]
Then when you submit it it''s combined into one string in the database.
Optimally it would auto-switch from field-to-field after you fill each
field.
Has anyone seen anything like this in Rails?
Thanks,
Adam
--
Posted via
2010 Jul 08
25
Prepared SQL statements
Dear all great developers.
I wonder if there is any work being done or thoughts being shared
regarding prepared SQL statements.
Currently I am in heavy need of tuning SQL INSERTS that insert large
(3MB) images into blobs.
I am using rails 2.3.5 with postgres adapter and pg driver.
Any information would be appreciated.
Jarl
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2006 Apr 16
5
Granular model validation based around controller actions?
How can I achieve granular control over the validation for different
controllers? I create users from an administration controller, but I
don''t want to fill in all their information fields, just have their name
and email address. When they accept the invitation, I want to implement
validation on the other fields.
I have looked at using :on => :update, but I would have to make the
2006 Jul 05
2
Serialized object behaves weird
Hi!
I got a class named EinsatzFilter which I serialized to session. Before
saving to session it works afterwards I keep getting the message:
"undefined method `to_s'' for #<Person:0x38c6ab8>". "Person" is a from
ActiveRecord::Base inherited class.
Code:
class EinsatzFilter
include ApplicationHelper
attr_reader :personen, :monat, :projekte, :kunde
2004 Aug 06
2
ice-metadata header incomplete?
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
I'm trying to write a PHP script that communicates with the Icecast2 server
directly to retrieve current song information. Since the documentation for
the ICE/SHOUT protocol is, frankly, pretty much non-existant, I did a search
on Google and eventually came up with this site:
http://www.smackfu.com/stuff/programming/shoutcast.html
I did
2004 Aug 06
2
song boundaries
the metadata format is not documented officially anywhere, but really isn't
terribly complicated...
http://www.smackfu.com/stuff/programming/shoutcast.html
hows a nice concise description of it, and was the first result returned
from doing
http://www.google.com/search?q=shoutcast+metadata
oddsock
At 04:06 PM 2/25/2003 -0500, you wrote:
> > The mp3 metadata format is a nasty hack