similar to: Order records based on number of children

Displaying 20 results from an estimated 4000 matches similar to: "Order records based on number of children"

2006 Apr 04
3
How to use in_place_editor_field ?
Hello, I really don''t understand how to use in_place_editor_field In my controller : class Admin::CategoriesController < Admin::BaseController in_place_edit_for :category, :title def list @categories = Category.find_all end end In the view list.rhtml <% @categories.each do |c| %> <td><%= in_place_editor_field :c, c.title %></td> # snip <%
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
2008 Jan 02
1
wants to get all parents with no children, etc
To all: hi, i have implemented the associations in my models so i have a Parent model that has many Children model but i need to get a list of Parents that do not have children or Parents that have just 2 children or Parents that have children whose name is ''James'', or ''Sarah'', or ''Betty'' or Parents whose children do not have names like
2007 Jan 17
2
rake test and validates_inclusion_of
Hello, I am just starting off with Rails, so I apologize in advance if there is a terribly obvious answer to my problem. I''ve done some searching and found similar problems to my own, but nothing which yielded a solution. I have a handful of models that I am unit testing. The tests for each unit run successfully, but when I do a rake test, many of the tests fail. The assertions that
2007 Feb 14
3
eager loading parents and children (acts_as_tree)
I am struggling with how to do eager loading of an acts_as_tree model. If the model Stuff acts_as_tree I know I can do this to get children as well: Stuff.find(:all, :include => :children) But what if the model I am including is the one that acts_as_tree? For example, say Picture belongs_to Category. Category acts_as_tree and I want to get all pictures that are members of a category that
2007 Aug 09
7
Integrating polymorphic models into controllers views? how?
I''m having trouble trying to get this to work. How the heck do you get a polymorphic controller to work? Especially integrating it with a view? Let''s say that we have shows, and episodes, then comments. A show has many episodes, an episode has many comments. the route is /shows/1/episodes/1/ Now to add a comment to that episode, how would I do it? Let''s say that the
2006 Apr 04
8
very bold internet explorer only website
Hello everyone, It is offtopic, but i''m so surprised :| I was looking for some filipino martial arts videos through google video, and came to this link http://redcornerboxing.net/ I use Firefox 1.5 on windows. I never seen *such* bold IE only website in my life. olegf -------------- next part -------------- A non-text attachment was scrubbed... Name: ie_must_die.PNG Type: image/png
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
2006 Feb 20
18
Win XP/ Mysql Problem
I''ve searched everywher for an answer to my problem, and the only thing I''ve found is people with the same problem. I''m hoping someone has an answer here: I''m working through the agile web developement with rails book and when I goto scaffold the products table I get the following message. exists app/controllers/ exists app/helpers/ exists
2006 Apr 27
4
select item based on previous select list selection?
So I have a select list with a list of items. When a user selects an item, another select list should have its default selected item set to a specific item (the default associated with the first select list). This is in a form to create a new task. The first select list is a list of parent tasks. When one selects the parent task, the clients select list must default to the same client as its
2006 Feb 23
3
has_many: inserting children when inserting parent
disclaimer: am in the midst of my first ruby/rails project I have a situation where I want several child records to be created when a new parent record is created. The following represents my first stab at coding it, am I on the right track? Here is the model: parents ---------- id name children ---------- id parent_id name class Parent < ActiveRecord::Base has_many: children end
2008 Jul 11
1
Using custom routes to handle new nested resources
I have a couple of resources, one nested in the other, such that my resource spec in routes.rb is: map.resources :parents, :has_many => :children This will generate a route for a new child that assumes that the parent has already been saved, something like: /parents/:parent_id/children/new But what if I want a route that handles the case where the parent resource is also new, and thus
2005 Jul 25
2
acts_as_tree and traversing parent/child relationships
I am working on an Rails application that uses a pretty complex category structure through out the site. I have defined a table to house all the info and a FK to reference parents within the table CREATE TABLE categories ( id int(11) NOT NULL auto_increment, name varchar(50) NOT NULL, parent_id int(11) default NULL, constraint fk_category_id foreign key (category_id) references
2007 Mar 27
7
Eager loading not working well for me
Man my app is causing me so much grief lately. Okay let''s say I have: class Discussion has_many :posts end class Post belongs_to :discussion acts_as_tree end Then let''s say I grab a discussion object and try to eager load all of its posts: discussion = Discussion.find(:first, :include => [:posts]) Seems simple enough and it grabs an entire tree of posts. However:
2006 Mar 15
5
acts_as_threaded - help ???
Hi, has anyone successfully used the acts_as_threaded plugin with postgresql? I''m using rails 1.0 and ruby 1.8.4 on linux. Following the screencast on http://www.railtie.net/articles/2006/02/05/rails-acts_as_threaded-plugin , I got to where we''re ready to create our first post, having made the changes to controllers/posts_controller.rb, views/posts/_form.rhtml,
2006 Feb 08
1
Many-To-Many w/acts_as_tree?
Guys, I''m having a problem getting acts_as_tree working. It seems from the Agile book (p. 255) that acts_as_tree only supports one-to-one record relations, whereas I need many-to-many support. In other words, looking at the picture at the top of page 256 where where only 1 id is linked to 1 parent_id, I need multiple id''s linked to multiple parent_id''s - for
2005 Apr 19
3
Rails 0.12.1: No major update without a bit of pain
There''s nothing like pushing a new major update in order to find bugs in the code when its exposed to a couple of hundred working applications. Thankfully the fixes were almost as swift as the reports. In any case, you''ll _definitely_ want to upgrade to 0.12.1 right away. There''s a good handful of fixes for both Action Pack and Active Record (mostly concerning the
2006 Jan 05
2
Confused...
Ok, So, I''ve got two data tables associated through a foreign key. class Child < ActiveRecord::Base belongs_to :parent, :class => Parent, :foreign_key => "parent_id" # also has attr1, attr2 end class Parent < ActiveRecord::Base has_many :children, :class => Child, :foreign_key => "parent_id" end So, I''m trying to build the new/edit
2006 Feb 02
3
acts_as_family_tree
For a project that I am working on I need to have a family tree. This means that instead of having one parent each item has at most two. As far as I know acts_as_tree only allows one parent_id. Any suggestions on how to make a "acts_as_family_tree" ? Thanks, Mark -- -------------------------------------------------------------------- I am Mark Daggett and I approve this message.
2006 Mar 17
4
hidden fields
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, I''m a rails newbie trying to develop a blog application with rails. I''ve some troubles to find the best way of automaticly set a field value on update and creation of a blog item. In fact my problem is very simple. I''ve a blog table with two column named create_date an mod_date. And I''d like : 1 - that