Displaying 20 results from an estimated 4000 matches similar to: "Use of uniqueidentifer type for primary key?"
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''
2006 Jun 09
2
Support for clustered primary key in rails?
Hi, I need to support a legacy database that mostly uses clustered
primary keys (i.e. every primary key consiststs of multiple fields not
just a single one. E.g. if I have tables A,B and C and C depends on
tables A and B, then C''s primary key will consist of 3 or more fields-
the foreign key fields pointing to A and B and a field or fields from C
that will make C unique- in
2006 Mar 01
7
Oracle Sequence & Rails
the compiler tell me it:
invalid column name: INSERT INTO ago.prova_stats (cognome, nome, id,
telefono) VALUES(''Medda'', ''Ivan'', :id, 70565611)
where ago.prova_stats is the table used by me and that have only the
columns ''cognome'',''nome'' and ''telefono''.
My table hasn''t the column
2004 Dec 03
2
[LLVMdev] [Fwd: Updated LLVM Visual Studio project files]
Could someone please apply this patch to the Win32 support so that
Morten and Jeff can handle the recent changes? I can't do it because
I"m on the road with only email access.
Thanks,
Reid.
-----Forwarded Message-----
> From: Morten Ofstad <morten at hue.no>
> To: Reid Spencer <reid at x10sys.com>
> Subject: Updated LLVM Visual Studio project files
> Date: Thu,
2009 Jan 13
3
postfix - dovecot - ldap
Hallo,
I want to run postfix - dovecot - openldap working together
The first problem is, that dovecot doesn't create the directories
/usr/local/mail/abcshop.at/bamm/Maildir
cur
new
tmp
although I can contact the Dovecot-Server
telnet localhost 143
OK ....
1 login bamm at abcshop.at secret
OK Logged in
/usr/local/mail/ is owned by virtual:virtual
If I uncomment the line
#mail_location =
2006 Jun 24
5
Why is rails using DB objects that don''t exist?
I admit it--I''m newb right now. But only to rails, ruby and friends.
I''m walking through a "recipe" tutorial but have been stuck for hours;
it''s time to ask for help. On Windows I''ve got the latest ruby, rails,
and webrick; I''ve got the Oracle OCI "thing" to talk to our Oracle 10g
database, I''ve got Slick Edit and a
2007 Aug 23
6
Saving ActiveRecord in PostgreSQL without id
I have a small table that is used to temporarily queue requests, as such
it does not have an id field (or any other primary key), because it
doesn''t make sense to have one.
When I created an ActiveRecord class and tried to save it, I get:
ActiveRecord::StatementInvalid: PGError: ERROR: relation
"temp_requests_id_seq" does not exist
It keeps looking for the id to auto
2007 Sep 17
8
DISTINCT?
This should be easy, but I''m stumped...
class X < ActiveRecord::Base
belongs_to :y
end
class Y < ActiveRecord::Base
has_many :x
end
The y table has a column names. The x table has a column value. I
want the list of values in x for the name "Location" in y. Yes, there
are many repetitions.
I can probably hack together an SQL statement to do this without too
much
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
2007 Jan 23
7
ActiveRecord requires sequence numbers in Oracle join table
I am mapping ActiveRecord classes to an existing Oracle database. This
means I cannot change the database schema to fit ActiveRecord
conventions.
Predictably, I have gotten into trouble: I have several join tables
that do not have a primary key column, and therefore no number sequence
defined. ActiveRecord insists on requiring a sequence, and gets unhappy
when there is none to find.
Is there a
2006 Feb 28
0
ActiveRecord: Legacy primary keys
Hi,
I''m building a frontend for a legacy schema, with tables like this:
CREATE TABLE `types` (
`a_type_cd` varchar(6) NOT NULL default '''',
`a_type` varchar(30) NOT NULL default '''',
PRIMARY KEY (`a_type_cd`)
);
The primary key is specified by the user (not auto-generated), and needs
to be updateable. I create the following a base class to
2010 May 20
0
RODBC: sqlSave leave primary key and other columns null
I have an existing table, and I am trying to use sqlSave to append
additional rows to this database. I omit the primary key, which is a
uniqueidentifier type (MS SQL), so that the database can populate that
field. However, I get the following error:
> sqlSave( ch, result, tablename=thetablename, append=TRUE,
rownames=FALSE, colnames=FALSE )
Error in odbcUpdate(channel, query, mydata,
2008 Jan 21
13
has_many with different primary key
I''ve got quite the ActiveRecord challenge, any help would be
appreciated.
In my current project Companies can have many reviews.
class Company < ActiveRecord::Base
has_many :reviews, :as => :reviewable
end
However, my company table, I have two different IDs to identify my
company.
id - This is the typical id we use for normal stuff
other_company_id - This is the id we use
2007 Aug 30
1
belongs_to with foreign keys that reference non primary key columns
Hello,
I have a situation where the foreign key into a table doesn''t
correspond to that table''s primary key:
my_table
-------------
id (pk)
name
...
other_table
--------------
id (pk)
my_table_name (fk references my_table(name))
...
I want to be able to say something like:
class OtherTable < ActiveRecord::Base
belongs_to :my_table, :foreign_key => { :my_table_name
2007 Mar 01
1
PostgreSQL primary (sequence) key issue
Hi,
I have a sequence set up on one of my tables called seq_user_mytable. I
tried the following with no joy:
set_primary_key "user_id", :sequence => "seq_user_mytable" and:
ActiveRecord::Base.seq_user_mytable
again with no joy. How do I implement a sequence in Rails/ActiveRecord?
--
Regards
Andrew
--~--~---------~--~----~------------~-------~--~----~
You received this
2008 Mar 10
2
response.body == filename?
I''m using RSpec.
describe UserController do
it "should require ..." do
post :login, {:name => ''root''}
puts response.body.to_yaml
end
end
....--- user/login
?????
--~--~---------~--~----~------------~-------~--~----~
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2004 Dec 03
0
[LLVMdev] [Fwd: Updated LLVM Visual Studio project files]
On Fri, 3 Dec 2004, Reid Spencer wrote:
> Could someone please apply this patch to the Win32 support so that
> Morten and Jeff can handle the recent changes? I can't do it because
> I"m on the road with only email access.
I'd be happy to do it. Can someone send me the patch as an attachment
off-list?
-Chris
> > <Tool
> >
2005 Dec 26
16
How to create application with single table with primary key
I''m trying without any succes to create application in which I have
one keyed table. The table structure is:
CREATE TABLE employees (
pin INTEGER PRIMARY KEY,
first_name VARCHAR(30) NOT NULL,
last_name VARCHAR(30) NOT NULL
);
Whenever I enter new record, I need the the filed pin is also filled
by user. Whenever a user edit the table, there should be option to
edit or not edit the
2007 Dec 27
0
SAS to R - if you have SAS 8.2+
Hi there,
the attached R function uses the SAS Integrated Object
Model (IOM) and it can deal with SAS dates and long
variable names. All you need to provide is the folder
where the SAS data file is and the data file name
without the extension. The function requires the rcom
package.
This is meant to be first cut...but improvements and
suggestions are more than welcome!
Gyula
import.sas.data
2005 Jun 29
3
Setting the value of a primary key field
I have a table that is to hold all ISO 639 language codes: alpha3t, alpha3b,
alpha2, that bunch. It also (indirectly) holds language names, but
that''s off-topic.
alpha3t is the primary key, so I''ve told Active Record about this by saying
set_primary_key "alpha3t" within the Language model. (Don''t try to call your
models things like ISO639 (won''t work