Displaying 20 results from an estimated 3000 matches similar to: "How to find the column type?"
2006 Jun 04
6
Activerecord relations.
I''ve got two tables set up - Things and Users where Users have many
things and Things belongs to Users.
They''re connected by Things.user_id => User.id and Things.updated_by_id
=> User.id both in the Things model using Belongs_to and custom foreign
key for one of them.
Problem is when I''ve got the updated_by_id belongs_to I can''t add Things
using
2006 Jul 20
3
[OT Ruby] Displaying a binary ?
How to I display the binary equivalent of a number? I tried this:
b = 0b1101
puts b # returns decimal value ( 13 )
b.to_bn # generates "unable to convert FIXNUM to STRING.." error.
--
Best Regards,
-Larry
"Work, work, work...there is no satisfactory alternative."
--- E.Taft Benson
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2006 May 28
7
Join table not being populated
Hello,
I have the usual Categories and Products table scenario, mediated by a
Categories_Products join table. When I create a new Product and into a
given Category, I notice that my join table is not being populated.
Shouldn''t the join Categories_Products table be populated?
Thanks,
gk
--
Posted via http://www.ruby-forum.com/.
2006 May 21
3
has_many :through with a polymorphic join
Hi,
Four tables: users, user_counties, uk_counties and us_counties.
Each user has many counties, and each county has many users, so I
decided to make user_counties a polymorph, so it can have counties
from different countries (each country requires a completely different
set of tables with a completely different set of properties, that''s
why there''s one table for uk_counties and
2006 May 10
7
has_many :through scope on join attribute
Hi
I have a has_many :through. It''s a basic mapping of
Project
id
....
User
id
....
TeamMembers
project_id
user_id
role
What I would like to do is have different roles so I can have in the project
model
has_many :core_members, :through => :team_members, :source => :user
but I would like to limit this to only those with the "core" role in the
team members table for
2006 Jul 28
11
Forum
Im making forum and i have problem with paths.
Here is code:
http://pastie.caboo.se/6389
With this code, it works. But its a bit weird to use so many paths
function. For every path i need to make new function. So can you suggest
me something.
Tables are like here:
http://wiki.rubyonrails.com/rails/pages/ForumExample
--
Posted via http://www.ruby-forum.com/.
2006 Jul 10
10
has_many :through and foreign key parameters
I just took my HABTM and turned it into a :through since my join table
has another "non-joiny" attribute.
I went from this:
has_many_and_belongs_to :jobs, :join_table => ''tablename'',
:foreign_key => ''x'',
:association_foreign_key => ''y''
to this:
has_many :jobs, :through =>
2005 Dec 29
6
How do I open and read/write to a file?
I need to process some text files quickly. I''ve not been able to find the
answer in the archive. The Ruby Standard Library site times out. Can
someone tell me where to find info on how to:
1. Get a list of filenames in a directory.
2. How to open a file.
3. How to read it a line at a time.
--
Thanks in advance for the help,
-Larry
"Work, work, work...there is no satisfactory
2006 May 22
4
naming convention for bridge tables.
I read somewhere that the correct naming of bridge tables is in alpha order.
For example. I have two tables:
houses, and colors.
If I want to create a bridge table to associate colors with houses, I would
name the table:
colors_houses
The associations work fine.
But, if I have a table named: track_houses.
Building a bridge table called: colors_track_houses, gives me model
associaton errors.
2006 Jul 04
2
has_many working correctly only on reload!
I have this code that is using svn externals with rails EDGE working
fine for the past couple of months. A couple of days ago, this code
died. Even after deleting vendor/rails, this code doesnt work:
class Tag < ActiveRecord::Base
has_many :taggings
has_many :events, :through => :taggings
has_many :users, :through => :taggings
end
class User < ActiveRecord::Base
# Virtual
2006 May 06
3
Storing additional data on join tables with Rails
Hi there
I need to store additional attributes on join table. Searching the
Wiki [1] revealed two possible methods:
1) push_with_attributes, as described by Justin Palmer [2].
Unfortunately, "this method is now deprecated" [3]. Even if it wasn''t,
there seem to be inherent problems with that approach, for example
with updating those additional attributes, though Joshua Muheim
2006 May 16
4
Problems with multiple ''id'' columns in a join_table
I have a problem declaring a relationship through a join_table ; the SQL
generated by ActiveRecord is correct, but there are two columns called
''id'', and the final object gets the ''wrong'' column ...
Here''s a more detailed description of the data, code, and problem :-
There''s a People table, with id, name, and a few things.
Also a
2006 Jul 10
7
What is has_many :through really buying you over HABTM?
So having just learned how to do has_many :through as opposed to HABTM,
and then, being concerned that I wouldn''t get it to work, I started
thinking about these two approaches.
It seems to me that the _only_ problem that the HM:T (has_many :through)
approach solves that HABTM doesn''t is the issue of the potential
collision of id columns between your join table and one of
2006 Apr 20
3
has_many :through with has_many/has_many join models
It seems that using a join model that joins with two has_many''s will
fail to generate proper SQL
class StudentSemesterRecord < ActiveRecord::Base
belongs_to :semester
has_many :discipline_records, :through => :semester
end
class Semester < ActiveRecord::Base
has_many :student_semester_records
has_many :discipline_records
end
class DisciplineRecord <
2006 May 31
6
habtm on an array (or object.habtm.habtm)
Hi,
I have three Models: User, Group and File.
User habtm groups
and
Group habtm Files
How can I find all files that a particular user has access to?
eg user.groups.files ?
As user.groups returns an array, the above doesn''t work.
Id like to find the files for all groups in that array, without adding
any code to the User model.
Thanks in advance
PS I just posted this in the
2006 Mar 19
1
Ruby startup slow on Windows Server 2003
Ruby script/console takes 30-secs to start on the Windows 2003 servers in
our shop. Has anyone found a way to speed that up? ( I know Linux is much
faster, but that''s not an option, in this case).
--
Best Regards,
-Larry
"Work, work, work...there is no satisfactory alternative."
--- E.Taft Benson
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2006 Jul 05
7
HABTM join table has an "ID" column - is this an issue?
All,
I''m building model objects for existing tables that I cannot modify.
In AWDWR, Dave says "Note that our join table has no id column...The
second reason for not including an id column in the join table is that
AR automatically includes all columns from the join tables when
accessing rows using it. If the join table included a column called id,
its id would overwrite the id
2006 Jul 15
2
find() with id array - can i preserve the ordering?
Sort of a newbie question - sorry if it''s been asked before and I missed it
in my search.
I have an id_array of Author ids, and I want to retrieve the associated
Author models as quickly as possible, but also preserve the ordering of the
id_array.
Using Author.find(id_array) returns the records, but not in the same order.
Is there some flag I can pass to find() to preserve the order? I
2006 Jun 27
3
Trunk or 1.1?
If you were launching a site in late September, would you be
developing with Rails 1.1 or on edge rails?
Joe
2006 Jun 29
3
stylesheets
hi,
all
i have been playing around with rails for sometime,
i have seen most not all of the rails sites have similar look and feel (good
one)
i want to know how to use the stylesheets provided by the RoR framework if
any
or is it that we have to define on our own from scratch.
basiclly i need information regarding how can i make my view better
looking(the visuals)
Thanks in advance
warm