similar to: auto completion with composite field

I am a complete newbie in R . Using R 2.2.0 Windows XP This started as a simple exercise to see if I could produce a simple Cleveland style dotchart with a line from the '2' axis to the dot rather than a continuous line as do "dotchart" and "dotchart2". At least I could not find that option. I got a crude program to work but it includes unnecessary steps.

I have just started using ggplot2 and I seem to be doing something stupid in writing ggplot2 commands on more than one line. In the example below the commands on one line are working fine, but as soon as I put them on two lines I get an error. Can any one point out what I am doing wrong? It must be something blindingly simple. Thanks Example

I have the following code and I am not able to get it working. The error message is not coming on the top, it is just getting displayed on a different page if I dont have the rescue block commented at the bottom. Model: user.rb require "digest/sha1" class User < ActiveRecord::Base validates_presence_of :eaddress, :fname, :passwd, :pcode, :country, :day, :year, :month, :gender,

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, I''ve been using xen for a number of years now without issues, but now have a problem. First, the problem: I have a Windows Server 2008 Standard 64bit DomU, I''ve installed a number of applications, and it works quite well and runs stable for weeks at a time so far (ie, has never crashed yet). I tried to install QuickBooks

I am going nuts here.. I have a form where users can write a city name (used with auto_complete) - and once they click on the desired city in the dropdown menu - I would like to have the Country field filled automatically as well... Is this possible at all ? If so, can somebody please tell me where I can find some documentation on the subject, or preferrably an example ? Many thanks in

hi, can''t find any good tutorial or advice to deal with the creation of a new record and it''s associated objects within the same page. do i have to use ajax just to add custom form fields that will be handled by the controller for associated objects creation.? do i have to use ajax to add associated objects to the unsaved but allready in session parent object? what''s

Announcement: Composite Primary Keys gem now includes support for ActiveRecord Associations. Summary: Composite Primary Keys allows an ActiveRecord to support 2+ primary keys using the set_primary_keys class method. Previous versions provided full CRUD and find support. This latest release provides support for more ActiveRecord magic: associations (has_many, belongs_to, etc) Full report:

Due to the foolish implied assumption that there''d never be a revision to activerecord library, the Composite Primary Key code promptly broke for anyone who updated their apps to Rails 1.1.6 (with its activerecord-1.14.4) Now the gem dependencies are fixed and your legacy databases are free to wield composite primary keys without fear again. Description: Composite Primary Keys

ActiveRecords with composite primary keys now seem to happily support find/create/update/destroy options. Url: http://compositekeys.rubyforge.org Background: Rails/ActiveRecords has long been critised for not supporting legacy databases, especially composite primary keys. This gem extends ARs with this support. Cheers Nic -- Posted via http://www.ruby-forum.com/.

Composite Primary Keys for ActiveRecords Bug fix release - 0.3.3 Notes: Fixed errors with id= and create. Note, the create method does not use sequences to generate ids for you. If anyone has any use cases where their DBs generate ids for their composite keys, pls let me know - we may need to add some syntax to the set_primary_keys command. Url: http://compositekeys.rubyforge.org Summary:

The AWDwR book has the following: add_index :categories_products, [:product_id, :category_id] add_index :categories_products, :category_id The first, composite index actually serves two purposes: it creates an index which can be searched on both foreign key columns, and with most databases it also creates an index that enables fast lookup by the product id. The second index then completes

hello, what is the strategy you use for composite primary keys ? I saw the solution proposed by Graham Glass ( ticket 3201) using a set_composite_key..., but it seems it is not in AR ....(why ?) thanks for feedback arnaud

I know that I should be able to figure this out by looking at the source, but this "ruby newbie" can''t: I have a model for a table with a 3-column composite key. Is there a way to tell the stock validates_uniqueness_of() helper to validate such a key or do I have to write my own? Thanks, Larry -- Posted via http://www.ruby-forum.com/.

Right now rails doesn''t support composite keys, that is id1, id2, and id3 are in the primary key of the table. Does anyone know if this is being discussed for future versions, or is it pretty much out of scope? -- Posted via http://www.ruby-forum.com/.

Hi All, How do I specify a composite primary key for a table in ActiveRecord? For example the table Recipe which has the primary key [cookie id, version number] where cookie id is also a foreign key referencing Cookie. Also: Thanks to Nic and Adam for helping with the Cookie -> Cooky problem. /Hugo --SQL * CREATE* *TABLE* `Raw_Materials`* (* id *INT*

What was the point of this again? Was it that these two operations are used so commonly together that its worth having a special type for them, or is there some correctness issue here? It seems to me that having it adds a fair amount of fiddley complexity, and it doesn't gain very much because patching will make each operation individually fairly efficient. J

I am building an app with existing controllers/actions, using traditional rails routes. I recently started moving over to RESTful routes and have hit a snag. Now I am reconsidering my whole effort and may go back to the original, more flexible, map.connect method. My problem is, one of the resources has composite keys. The keys are both strings as well, and can include dots. Here''s

Hey there, I''ve adjusted some of my many to many join tables recently to use a composite primary key based on the id''s in the two columns - instead of using a surrogate key. I just did a db:schema:dump, and it looks something like this: create_table "class_members", :id => false, :force => true do |t| t.integer "user_id", :default => 0,

I was thinked about it for a two days. Can you please give some ideas? i don''t know if i should use STI, polymorphic or something else. Pattern description - https://rapidshare.com/files/2628031507/obs_architecture.pdf (Figure 4/5) -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to

Hello, Is it true that Rails doesn''t support composite primary keys? I have a legacy system and was pondering adding a new interface to it. This whole Rails thing (and yes, Ruby too) seems pretty interesting but I''d feel ashamed of myself adding an additional column called ''id'' when there''s already a perfectly good composite key. Assuming the rumors