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