search for: read_article

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2006 Jan 09
4
Problem with habtm and resulting SQL insert
Cheers, I have a problem with 1.0 and a habtm relationship between User and Article. I want to save all articles that users read. I have these models: class User < ActiveRecord::Base has_and_belongs_to_many :read_articles, :class_name => "Article", :join_table => "read_articles" ... end class Article < ActiveRecord::Base has_and_belongs_to_many :readers, :class_name => "User", :join_table => "read_articles" ... end When I do a a = User.find(1) b = Arti...
2006 Jan 02
2
ActiveRecord:
In the Agile Rails book, on page 232 (PDF, 4th edition) there is an example of (within ActiveRecord) marking an article as read by a user at the present time. Short example code (from the book) here: class User < ActiveRecord::Base has_and_belongs_to_many :articles def read_article(article) articles.push_with_attributes(article, :read_at => Time.now) end # ... end However, it seems this piece of code would only work the first time you read a specific article. It appears to always create a new join table post, and not to just update if there is an existing p...
2006 Jan 02
1
ActiveRecord, << or push_with_attributes: update if exists?
In the Agile Rails book, on page 232 (PDF, 4th edition) there is an example of (within ActiveRecord) marking an article as read by a user at the present time. Short example code (from the book) here: class User < ActiveRecord::Base has_and_belongs_to_many :articles def read_article(article) articles.push_with_attributes(article, :read_at => Time.now) end # ... end However, it seems this piece of code would only work the first time you read a specific article. It appears to always create a new join table post, and not to just update if there is an existing p...
2006 Feb 21
7
Self-referencial habtm relationship
Heyo! I am setting up a self-referencial habtm relationship with the users of my app. I am using Chad Fowler''s "Rails Recipes" to get me started, and everything works great with the join table "people_friends". I add friends by doing somebody.friends << somebodyelse. However, with my app, there is an approval process so my join table has columns person_id,
2010 May 03
0
TCP Tuning/Apache question (possibly OT)
...I've been requested to add some TCP tuning parameters to some CentOS 5.4 systems. These tunings are for the TCP receive buffer windows: net.core.rmem_max net.core.wmem_max Information on this tuning is broadly available: http://fasterdata.es.net/TCP-tuning/linux.html http://www.speedguide.net/read_articles.php?id=121 Potential downsides are available: http://www.29west.com/docs/THPM/udp-buffer-sizing.html >From the above, the rmem size is a function of the number of listening processes times the size of the receive buffer. Apache can initially create a bunch of server processes (StartServers d...