Displaying 20 results from an estimated 1000 matches similar to: "multiple keys table"
2006 May 17
2
Association data clobbering (foreign keys too?)
Can someone please confirm or correct the following statements?
If I have the following tables
create table as (id int, [...], b_id int);
create table bs (id int, [...], a_id int);
create table as_bs (a_id int, b_id int);
and the associations woould be defined like this
class A << ...
habtm :bs
belongs_to :b
end
so my Model A has a habtm collection of Bs *plus* a direct
2008 Jul 04
2
How to make WHERE foo_id IN () query?
Hi,
There are 3 models:
A has_many :Cs
B has_many :Cs
C belongs_to A and B
I got a single object of A and an array of B objects. How can I get
all Cs that have a_id equal to object A.id *and* b_id that belongs to
an object in Bs array?
Regards
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2006 Mar 02
1
web serveces problem
Hi,
I''m trying to added layered web services to my application and from some
reason it''s not working for me. i''m working with ruby 1.84, rails 1.0.
here are my files:
1. app/apis/kate_api.rb:
class KateAPI < ActionWebService::API::Base
inflect_names false
api_method :check_version, :expects => [:string], :returns => [:string]
end
2.
2006 Dec 30
2
search on multiple table
Hello,
I am trying to make a search, using acts_as_ferret on a
has_and_belongs_to_many relation :
class a < ActiveRecord::Base
belongs_to :b
has_and_belongs_to_many :c
Joboffer.find_by_contents( query +b_id:1 ) is working fine
but
Joboffer.find_by_contents( query +c:1 ) is not working
Here are the tables descriptions:
Table a have field : id, b_id
Table b have field : id,
2006 Mar 15
1
push_with_attributes not inserting default values
I have a join table A_B with columns[a_id, b_id, c_data default 1,
d_data default 1].
If I do:
@aobj.bobjs.push_with_attributes(@bobj,{:c_data => 0})
I find that the row inserted, has d_data set to 0 and not the default
value specified in the database, which is 1. So I am having to
explicitly set it using :
@aobj.bobjs.push_with_attributes(@bobj,{:c_data => 0, :d_data => 1}).
Is this
2006 Feb 27
1
problem with rakefile
hi,
I am having a problem with the rake test_units in my RoR application.
when i''m running it it tries to run all the files that end in *.rb (i
think) under the /unit folder in the project and it''s subfolders.
The problem is that my source control system (bitkeeper) saves an
subfolder named SCCS under each of the project folders, and in it, for
eack .rb file another file
2006 Nov 04
2
sql query in active record
hi all,
if i want to write a query select * from a,b where a.b_id=b.id in active
record
using joins,condition how can i write that
in docs i found for conditions you do by giving "?" and then the parameter
eg. a.b_id=?
but it takes b.id as string i.e a.b_id=''b.id''
i dont want that
any suggestions
thanks in advance
regards
gaurav
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2002 Jul 28
2
timestamp on symlink
rsync does not sync the timestamp on symlink (Solaris 8).
It is probablly due to the limitation of Unix implementation
of symlink, but I would like to know why rsync/Unix does not
do this, and what we can do about it. Is the conclusion that
"rsync syncs everything except the timestamp on symlink"?
Why do I need timestamp on symlink? Supposed something stopped
working because something
2011 Apr 11
4
Printing field attributes outside the model.find_by_sql
Hi All,
I have Model called pays..and it has fields like(id, topic, subject,
created_at, b_id) and i also have a Model called suggests with
fields(id, income, price, b_id)
In my ruby on rails action or method Controller:
def print_two_table
@p = Pay.find_by_sql("SELECT p.id, p.topic, s.id, s.income, s.price FROM
pays as P LEFT OUTER JOIN suggests AS s ON s.b_id = p.b_id WHERE
2017 May 04
2
Handling invariant.groups with equality + marking it as experimental
Hi folks,
I would like to ask for some help with handling invariant.group metadata
for pointer comparison. Currently, we have a problem with devirtualization
of this code:
void compare() {
A* a = new A;
a->foo();
A* b = new(a) B;
if (a == b) {
b->foo();
}
}
Now because it is legal to replace b with an in the branch the vtable load
will use old pointer operand
2005 Dec 26
3
data insertion in multiple tables
I have two tables like:
Table A:
id (autoincrement)
name
Table B
id
id_of_A
desc
I want to add a record to table A and based on the id of A, I want to add a
record to table B.
I don''t think there is any SQL command that support this (at least in MySQL
4.1, so I use LAST_INSERT_ID()).
(Is there any other way? or MySQL 5 support any special SQL command?)
But I need
2006 Jan 27
1
"Conditional" match?
I have two datasets, big and small.
s_date<-c(?2005-12-02?, ?2005-12-01?,
?2004-11-02?,?2002-10-05?,?2000-12-15?)
s_id<-c(?a?,?a?,?b?,?c?,?d?)
b_date<- c(?2005-12-31?, ?2005-12-31?,
?2004-12-31?,?2002-10-05?,?2001-10-31?,?1999-12-31?)
b_id<-c(?a?,?b?,?c?,?d?,?e?,?c?)
small<-data.frame(date_=as.Date(s_date),id=s_id)
big<-data.frame(date_=as.Date(b_date),id=b_id)
For each row
2010 Dec 20
4
Subselection by URL
Hey guys,
I''m quite new in RoR, so please excuse me when I may ask weird
questions.
I am working on a database frontend. The layout looks mostly like
a has_many bs
b has_many cs
c has_many ds
and so on. Now I want to do some selection. Maybe I want to see all ds
belonging to a specific b. I would like to do it like:
http://my.host/bs/1/ds
When I click around there (add new ds, show a d
2013 Jul 19
12
Rails 4 "belongs_to: record" association doesn't work
Hi,
I discovered a weird behavior when using a "belongs_to: record" association
in Rails 4.
Given two models A and B:
class A < ActiveRecord::Base
belongs_to :record, class_name: ''B'', foreign_key: ''b_id''
end
class B < ActiveRecord::Base
end
When creating A, it inserts a record in B and returns A with id of nil:
irb(main):001:0>
2006 Jun 12
5
Doing a simple search from the database?
I realize thi may be more complex issue than can be asnwered in this
post. But, what I need to do is create a simple query on my existing
tables via a search form. I have half my app done (I can write all the
info I want to my database), but pulling the data out dynamically is
giving me trouble.
I have both the "ruby for rails" book and the Agile Development book.
They both give
2012 Aug 17
4
Appending many different and separate Excel files using R
Dear all,
Good day!
I have a problem in reading Excel files in R and appending them to each other. Suppose we have several Excel files in a directory with headers and want to use R to append them in a single file with an additional variable in the final file indicating from which files the data come from.
As I have many Excel files and their sizes are very big I should write a loop in R to do
2006 Jul 07
5
link_to: link is missing id
I''m using a legacy table, where the unique id is not ''id''
I have a Model class like the following:
class Article < ActiveRecord::Base
set_primary_key "ARTICLE_ID"
end
however, using a link_to like the following (modified scaffolding),
the link has no id value:
<% for article in @articles %>
<tr>
<% for column in
2006 Mar 09
2
turn off auto increment
Hello,
I have an old table that handles sessions. the primary key is a field
called session_id and is the actual session id like "8df838303ufdfu838"
however when i do the following in the model:
set_primary_key "session_id"
and the following in the controller:
@session_hash = { "session_id" => @session.session_id, "session_user_id" =>
2008 Dec 22
3
how to use set_primary_key?
We are trying to use set_primary_key to cause an existing rails db to
use a different primary key. This works find for accessing existing
data, but gives an error when we try to add a new record, as it seems
to still be accessing the record by the default id field at that
point. Are there other changes we need to make to get an alternate
primary key working?
Thanks,
Ken
2006 Jan 27
4
find.collect problem.
Hi all.
I am trying to populate a dropdown based on two values.
def self.clientref( reference )
@bugclientrefs = self.find_all(["bug_id = ?", reference]).collect {|b|
[ b.client_id.strip << " - " << b.client_ref.strip ]}
end
This works fine. However this returns the reference to the client. I
want the full name using this function.
class Bugclient <