Displaying 20 results from an estimated 10000 matches similar to: "Composite Primary Keys 0.3.2"
2006 Aug 14
0
Composite Primary Keys - now works with Rails 1.1.6
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
2006 Jul 30
0
Composite Keys 0.3.3
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:
2007 Mar 08
2
Composite Primary Keys
Have been looking into using rails but am finding the "Composite
Primary Keys are Bad" thing a tad disturbing (to put it mildly). I
have been working with RDBMS systems for over fifteen years and this
is the first time I have herd the idea questioned. I have cone across
using surrogate keys which mirror the composite key for performance
reasons in VERY big databases but I have never
2006 Aug 02
0
Composite Primary Keys support for Associations
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:
2012 Jan 05
3
composite keys and association
i have two table, comment and post, both have composite keys, and no id
column, comment belongs to post, i follow the instruction of
http://compositekeys.rubyforge.org/, and it seems successfully,
(But i still cant confirm to put require ''rubygems'' and
require ''composite_primary_keys'' on which file ).
I can do the CRUD operation for post,then i want to create
2005 Dec 09
1
composite primary keys
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
2006 Apr 03
4
How to fake composite primary keys?
I know ActiveRecord doesn''t support composite primary keys, but I need to use
one, and I need it ASAP. I don''t need any composite foreign keys, luckily;
what I have is a table that stores old versions of rows in another table, so
the composite key is an id + date stamp. Would someone tell me a hack I can
use to support this?
--
View this message in context:
2006 Jun 21
1
about composite primary keys
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
2010 Aug 19
1
Composite primary keys and :joins=>
I have a legacy db with the following simplified structure:
Table-A:
type_key, code_key, name, ... # PKs are type_key and code_key,
there is no id col and I cannot alter this db
Table-B: # each row has only the code as a foreign_key, the type_key
is hard-coded to "FOOKEY"
an_id, code, ...
Models:
class TableB < AR::Base
set_table_name ''table_b''
2014 May 15
0
composite primary key - Rails 4.1
Hi,
I am facing issue with composite primary key
In my gem file I have the below entries -
gem 'rails', '>= 4.1.0.rc2'
gem 'mysql2'
gem 'rb-readline', "~> 0.5.1"
gem 'sdoc', '~> 0.4.0', group: :doc
gem 'spring', group: :development
gem 'bcrypt', '~> 3.1.7'
gem
2006 Jan 11
1
Composite primary key
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*
2009 May 26
0
rake db:schema:dump doesn't produce composite primary key instructions
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,
2007 Oct 26
0
Composite Keys on RESTful Routes
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
2006 Mar 22
0
validating composite model keys
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/.
2006 Feb 18
14
Composite primary key support in ActiveRecord?
Hi,
As I understand, composite primary keys aren''t supported in
ActiveRecord yet. May I ask if there are plans for this feature?
Better yet, if this feature is under development, how''s the progress
going?
I''m not trying to use legacy databases. I tend to think that using
multiple integer column id''s (composite primary key) are often
natural way to
2006 Jul 30
1
Doubt on composite index
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
2006 Feb 28
3
Composite Key Support
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/.
2006 Jul 26
15
Rails without a primary key
I''ve been trying to use Rails on a database where the biggest
datawarehouse-style table doesn''t have a primary key. It really
doesn''t make sense and just adds extra unnecessary space. I do have,
however, a column that I normally use to search on (IP) that returns
many rows. The table also references several other tables through
rails-friendly foreign keys.
Simple AR
2009 Jul 02
2
compose_primary_keys
I´m looking for a way to work with compose primary keys.
I alredy know that plugin http://compositekeys.rubyforge.org/
but it doesn´t have examples.
Please help =]
--
Horus Augustus C. C. Lima
Sagarana Tech
Mobile +55(85)8842.4402
Desk +55(85)3304.6530
augustus-b3GZhX+fmr6XmMXjJBpWqg@public.gmane.org
http://www.sagaranatech.com
--~--~---------~--~----~------------~-------~--~----~
You
2009 Mar 09
3
multiple columns primary key
Hi all,
I have two tables:
TABLE 1
A pk - fk (referencesc TABLE 2)
B pk
C pk
D pk
E
F
TABLE 2
A pk
G
H
I
L
I don''t use incremental field (id). I''d like don''t use find_by_sql.
How can I define both models to use correctly find method (with
include)? With only one column primary key I haven''t problems.
I thought two solutions, but I don''t like these