Displaying 20 results from an estimated 2000 matches similar to: ":order based on an aggregate value?"
2006 Apr 16
2
conditional updated_on update
Hi list,
I''ve got some counter_caches in a model. When these get incremented - say on
a page view - my updated_on column also gets updated. How can I
conditionally not update updated_on if just these counter_cache columns
change?
The problem with that is that I am using acts_as_versioned which clones the
record each time updated_on changes. I am successfully ignoring the
counter_cache
2006 Jul 11
1
counter_cache, has_many and belongs_to
I am a bit confused about counter_cache here. The API docs
http://api.rubyonrails.org/classes/ActiveRecord/Associations/ClassMethods.html
say that only the belongs_to association can take the :counter_cache
option. When I try to use it on a has_many I get an "unknown key(s):
counter_cache" error.
Why would this be the case? belongs_to means that this model has a
field with an id
2006 Jun 08
2
counter_cache is not looking for children_count with acts_as_tree
Hi there, the acts_as_tree API says that I can set a counter cache and
that it will automatically increment the "children_count" column. I
did that but when I create a new page it asks for a "pages_count"
column instead.
Here is the relevant part of page.rb model:
class Page < ActiveRecord::Base
acts_as_tree :order => :position, :counter_cache => true
2007 Jun 01
2
Ferret FileNotFound error after adding counter_cache to mode
I have a model that I''ve been indexing and searching with ferret with no
problems.
I just added a counter_cache for some voting functionality to the same
model and now when I perform the voting fxn on an object from that
model, I get the FileNotFound error as it looks for a file named
"_1c_1.del" ...which breaks my voting function.
I tried killing the server and my index
2006 Feb 03
2
acts_as_tree counter_cache behavior is different than API docs
Before I file a ticket, I''ll query ya''ll about this:
The API docs for acts_as_tree''s counter_cache is to create a database column
called "children_count" to hold the counter_cache. I have enabled this
option in my model. While writing tests I wrote a test for creating children
from the a parent:
message = @forum_message["parent"].find
child =
2009 Jun 01
4
counter_cache is making a redundant SELECT before UPDATE
Hi,
I have the following code:
Message, belongs_to :topic, :counter_cache => true
topic = Topic.find_from_permalink(params[:id])
topic.messages.create(params[:message])
When the message gets created, then AR issues a supplemental SELECT to
retrieve the message''s topic and then updates its messages_count. Why is
that happening?
If I do it manually:
if
2006 Mar 12
2
counter_cache reference/tutorial
I''m trying to use counter_cache, but I''m not doing something right.
It is unreliable and I keep having to correct it manually. Is there a
good tutorial or reference on how to use it on-line? I have the AWDR
book, but I need something more complete.
TIA,
Jeffrey
2006 Mar 18
4
Accessing overridden method
I have two model classes:
class Item < ActiveRecord::Base
belongs_to :channel, :counter_cache => true
validates_presence_of :channel
end
class Channel < ActiveRecord::Base
has_many :items, :dependent => true
end
In the Channel controller I have variable channel.items, an Array of
Items. I would like to use the Array find method. However,
channel.items.find() is a Rails
2006 Apr 07
2
errors.add_to_base
What are the limitations on using:
errors.add_to_base
to display errors in views?
I have tried for days to add errors from my object.rb and they never get
displayed.
class Keyword < ActiveRecord::Base
validates_presence_of(:name, :message => "Name is required.")
validates_uniqueness_of(:name, :message => "This name is already in
use. Please try
2006 Mar 24
6
Should counter_cache fields be saved in the database?
As far as I can tell, the counter_cache option on a belongs_to model
doesn''t actually save anything in the database. For example, I have
the following models:
class Parent < ActiveRecord::Base
has_many :children,
:conditions => "deleted_at IS NULL"
end
class Child < ActiveRecord::Base
belongs_to :parent, :counter_cache => true
end
With the following
2006 May 22
3
STI, HABTM & counter_cache
Hello world...
I have an interesting issue that the online docs aren''t helping me with.
In my app I have 4 models
Item < ActiveRecord
Deal < Item
Product < Item
Category < ActiveRecord
Item has_and_belongs_to_many :categories...
On each category record I''d like to maintain a product_count and deal_count
to increase performance. This doesn''t appear
2006 Apr 30
2
HABTM: Find sorted by number of associations
Hi,
I''ve been googling and searching the forums for some time
but can''t seem to find exactly what I''m looking for.
Suppose User HABTM Products (for example a favorites list). I would like to
construct a single query for finding Products ordered by the number of
Users that have flagged them as favorites.
Although I can construct the query using SQL a with a
2006 Mar 30
3
Model.find(:all) where Model.association has more then 0 items?
Hi everyone,
I have a Department model that has_many people. How do I go about
finding all departments with more than 0 people?
Department.find(:all, :conditions => Department.people.size > 0)
That, of course, doesn''t work, but it was as close as I could come.
Thanks!
Sean
2006 Dec 06
2
validates_uniqueness_of where scope euqals created_by "magic" field
I have the following ActiveRecord objects:
class Recipe < ActiveRecord::Base
has_many :ratings, :dependent => true
. . .
end
class Rating < ActiveRecord::Base
validates_uniqueness_of :created_by, :scope => :recipe_id
belongs_to :recipe, :counter_cache => true
. . .
end
The created_by field on Rating is implemented as a "magic" field
similar to this:
2007 Sep 12
1
Counter cache like plugin for sum
Hi list,
Is there a plugin similar to counter_cache except for caching sums
instead of counts? The reason I ask is for performance and convenience
for reporting.
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2007 Aug 21
2
counter cache
Hi,
I have two models, employees and departments, and i am using
counter_cache to count the number of employees in a department.
This works great, but employees can change their departments, and the
counter cache does not get updated to reflect this.
Is their a built in way to do this, or do i have to implement my own
before_save hook
thanks
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2006 Mar 25
2
acts_as_tree wierdness with children.count and children.size
i am making a category tree and i iterate over the category using my
counter_cache however it would show a different number than what was
actually being represetned in the tree.
Here is an example
cat.children = [cat2, cat3]
puts cat.children.size 2
puts cat.children_count 2
cat4.parent_id = cat.id
cat4.save
puts cat.children.size
2010 May 24
5
top 10/most popular lists
What''s the best way to handle views that show the top 10/most popular/
Recently updated/most commented type listing?
Should I have a separate model that is populated with records from
other models by a background job or should I need to use some sort of
caching? Perhaps both?
Thanks!
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2006 Aug 12
2
Very weird counter_cache behavior
Hi All,
I''m using a counter_cache, which I believe I''m doing correctly because I
can see this SQL query being executed in the development.log file:
UPDATE gifts SET bookmarks_count = bookmarks_count + 1 WHERE (id = 276)
However, in the gifts table, the bookmarks_count field isn''t incremented
(it''s zero). If I literally copy and paste that query into the
2016 Aug 01
3
Unlock domain user
On 01/08/16 20:29, Anderson Hoffmann do Carmo wrote:
> I executed the command in two scenarios.
>
> Account 'user1' unlocked:
>
> root at gteste2:~#
> root at gteste2:~# ldbsearch -H /var/lib/samba/private/sam.ldb -b
> "dc=testead,dc=gsurfnet,dc=com" -s sub
> '(&(objectclass=user)(samaccountname=user1))' lockoutTime
> # record 1
> dn: