similar to: Two-way eager loading?

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 -- You received this message because you are subscribed to the
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