similar to: Find with two levels has_many

Displaying 20 results from an estimated 20000 matches similar to: "Find with two levels has_many"

2006 Aug 04
2
problem eager loading with sti
Here''s the setup (working off Rails 1.1.4): Class Project belongs_to :employee Class Employee < Person has_many :projects When I try to paginate(:employees, :include => :projects) I get the error "Association named ''projects'' was not found; perhaps you misspelled it?" I can :include other models that the Person class has_many or habtm of, and if I
2006 Aug 04
8
I need an idea !
Hello here, I need to find an idea to solve a problem I manage Events which are of kind :arrival or :departure At first the two kind of events was unrelated but my client want to see the :departure belonging to the :arrival and vice versa. I''m searching for a solution to implement this ''link''. I''ve thought about an integer column containing an uniq id for
2006 Apr 10
3
preloading child rows just a level deeper...
hiho. following problem. i have 3 tables in my database with each representing an object. lets say A belongs_to B belongs_to C. when i do my_a = A.find(:all) i can access B as my_a.b and C as my_a.b.c thats fine but rails querys the database each time i do that so is use my_a = A.find(:all, :include => :b) works fine for my_a.b but not for my_a.b.c so i tried my_a = A.find(:all, :include
2006 Jan 17
9
using "find" when you have 2 has_many relations
An Account has_many Websites which in turn has_many WebsiteDomains Now I can of course do this: @domains = Account.find(1).websites.find(1).website_domains.find(:all) To get all the domains for Account with id 1 and Website with id 1. I would like to do something like this though: @domains = Account.find(1).websites.find(:all).website_domains.find(:all) IE, get ALL domains for all websites in
2006 Jan 11
5
Noob - Associated Tables Find Query
I''m trying to write a football prediction game. I have a Matches table and a Predictions table. Each Match :has_many Predictions, and each Prediction :belongs_to a Match Each Match has (amongst other things) a Match.match_date field. Each Prediction has (amongst other things) a User_id field I''m trying to get a list of all Predictions a particular User has made which
2006 Jun 08
3
has_many :through updates on delete.
I have a model that looks like this: class Actor < ActiveRecord::Base has_many :member_groups, :foreign_key => ''member_id'', :class_name => ''GroupMember'' has_many :groups, :through => :member_groups, :source => :group end class Group < Actor has_many :group_members, :foreign_key => ''group_id'',:dependent =>
2006 Apr 03
2
Problems with STI in has_many/belongs_to in Rails 1.1
I have a problem that surfaced in my attempt to upgrade my application to Rails 1.1. We have a STI model on the "belongs_to" side of a has_many/belongs_to relationship. All my unit tests for this model pass, and the relationships all seem to work fine. But in my functional tests, I''m getting errors. I''ve traced it back into the call to the has_many
2006 Jun 08
9
find :order =>
Hi, I have the following find statment @client_pages, @clients = paginate :clients, :per_page => 20, :order => "organisation_id, surname" currently im ordering by organisation_id however I need to order by the field in the organisation table organisations.name how can this be done? Thanks Scott -- Posted via http://www.ruby-forum.com/.
2006 Jul 06
5
Building a standalone application with RoR
Hello, I have to code a small application for a car repair shop running under Windows (98 SE but may be my client could upgrade to 2000) and using RoR is my definite choise ! The app will be powered by WebRick (which is enough powerfull for a small app used by only ONE user at a time) My questions are targeted to the best database to use... I had a look to SQLite and Firebird but support
2006 May 17
6
White Screen of Death
Hello, I''ve heard these words to describe a RoR application returning an empty page. This happen from time to time even here, in the forum. That is the cause of this misbehaviour ? Is it related with something external to RoR itself ? What is the solution to avoid the WSOD ? -- Posted via http://www.ruby-forum.com/.
2006 Sep 03
1
New Technique: Subsets of has_many Associations
I just now thought of this, and sure enough it works like a charm (at least so far in my limited testing): has_many :events, :dependent => :delete_all has_many :upcoming_events, :class_name => "Event", :conditions => "date > NOW()" The purpose of this is that it makes eager loading of subsets of associations possible without replacing all the magic of the
2020 May 13
1
[PATCH 2/2] drm/ttm: deprecate AGP support
On Wed, May 13, 2020 at 01:03:13PM +0200, Christian K?nig wrote: > Even when core AGP support is compiled in Radeon and > Nouveau can also work with the PCI GART. > > The AGP support was notorious unstable and hard to > maintain, so deprecate it for now and only enable it if > there is a good reason to do so. > > Signed-off-by: Christian K?nig <christian.koenig at
2006 May 26
6
Help needed with acts_as_list
Hi ! There must be something I don''t understand clearly in acts_as_list I have a list of gallery entries (images + text), model is GalleryEntry. I have a field in_exhibition (boolean) I want the list to be sorted with a scope on in_exhibition : from 1 to N for every record having in_exhibition = false and 1 to N for every record having in_exhibition = true When I use acts_as_list
2006 Jan 05
2
has_many - when are child objects created?
I has several model objects that flow down like a tree: Class1 has_many Class2 Class2 has_many Class3 and so on. when are the child records actually created? If I do: c1 = Class1.find(:all) are the child objects (C2s below) created then or not until i do something like: c2s = c1.C2s while iterating through the c1s? If the form, that''s cool, no problem, but If I''ve got
2008 Apr 13
20
uninitialized constant
Hi guys, I''m part way through a RoR application, for some reason whenever I add new controllers (using scaffold) I get an uninitialized constant [name of controller] error. The first few controllers work fine, the only thing I can see that I''ve changed is the layout file (but scaffold creates a new layout for each controller so can''t see that being the problem). You
2006 Jun 07
1
has_many, through, want to store email in mysql
Hi, I''m still a new with ROR, but it''s really cool :) I just have this problem with a project of mine. I want to store email in a database. I already wrote a simple import script, that works, so that''s not a problem. Showing the email (efficiently) in a ROR site is. These tables are in the database: emails id email_id (foreign key -> emails.id) seq
2015 Mar 06
3
How to get rid of misspelled DNA entry?
Dear list, I have a strange problem. In RSAT is had a typo when adding a reverse lookup entry, i.e. I added something like "host.samdo.com" instead of "host.samdom.com". No a reverse lookup yields to entries, the correct one and the misspelled one. :-( Deleting it in RSAT is impossible, as the misspelled entry doesn't show up here. Deleting in by samba-tool is
2006 Jan 20
1
stack level too deep from has_many / belongs_to relationship
I have the following 3 models (2 models joined by an intermediate): 1. class Exercise < ActiveRecord::Base 2. has_many :routines, :class_name=>''RoutineExercise'' 3. end 1. class Routine < ActiveRecord::Base 2. has_many :exercises, 3. :class_name=>''RoutineExercise'', 4. :order=>''position'' 5. end 1. class
2013 Aug 26
0
[PATCH] bridge: separate querier and query timer into IGMP/IPv4 and MLD/IPv6 ones
Currently we would still potentially suffer multicast packet loss if there is just either an IGMP or an MLD querier: For the former case, we would possibly drop IPv6 multicast packets, for the latter IPv4 ones. This is because we are currently assuming that if either an IGMP or MLD querier is present that the other one is present, too. This patch makes the behaviour and fix added in "bridge:
2007 Apr 04
4
Order a find using a has_many association
I''m trying to order a find through a has_many association. I have a model called SalesOrder. Each sales order has things like amount, description, etc. I use the following to get the Sales Orders: @sales_orders = SalesOrder.find(:all) And I display them with: <td><%= link_to sales_order.id.to_s, :action => ''show'', :id => sales_order.id