Displaying 20 results from an estimated 9000 matches similar to: "Avoiding HABTM field clobbering?"
2005 Dec 28
4
undefined method `include''
I''m getting this error in Rails:
undefined method `include'' for
#<MenusController:0x408efd1c>
The offending code is:
require "rexml/document"
include REXML
I see there may be a problem with GCC 4 on OSX, but
I''m using Redhat with GCC 3.2.
http://weblog.rubyonrails.org/articles/2005/12/22/is-gcc-4-0-incompatible-with-ruby-on-os-x-and-elsewhere
2005 Dec 28
2
Getting (and displaying) REST data
This is probably more a Ruby question, but somebody
here probably knows ;). Is there some handy Ruby or
Rails library that can get data from other sites (like
Amazon and Flickr) via REST, then return it in nice
arrays, hashes, objects, etc.? I''ve searched quite a
bit and haven''t been able to really find anything.
There is a ruby-amazon library, but it''s for an older
2006 Feb 09
2
select options for HABTM?
I''ve looked through the docs and the wiki and can''t
figure out how to go about generating select options
and the update function for an item that has a HABTM
relationship.
I have a ''parks'' table and the park model has a HABTM
to the ''states'' table. On the park edit page, I''d like
a multiple select box to appear with all states show,
2005 Dec 28
8
Rails app lags after inactivity
Hi all. I have two Rails applications. Each is on its own VPS hosted by
Pipespring (excellent service btw).
My app runs lightning quick - AFTER the first load. If I visit my site after
a period of inactivity (i.e. no visitors to my site), it takes up to 10
seconds to load that first time. After that I can hop around with no
problems.
Has anyone run into this before? Ideas?
- Rabbit
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
2006 May 18
3
Model Madness: habtm vs through
This has me scratching my head:
a Person has many Things
a Person has many Collections
a Collection has many Things
...Things in a Collection are ordered
...Things in a Collection can be related to (created by) any User
...a collection has additional attributes, such as a name etc
I am confused about habtm in rails (especially when using
acts_as_habtm_list) vs. going the :through route.
2006 Jul 07
3
Newbie Model question (HABTM?)
All,
If I have a table that has several discrete fields that all point to
the same associated field, how do I model it.
Specifically,
If I have a project table that has 2 fields: specifying_company, and
responsible_company.
And one table of associated companies, how do I do the :belongs_to /
:has_many stuff
ie. For a given project company A may be writing the spec, but company
B may be paying
2006 Mar 28
3
Rails 1.1: Is HABTM obsolete?
Does the new has_many :through and belongs_to :through obsolete (well,
replace and essentially deprecate) has_and_belongs_to_many?
Joe
--
Posted via http://www.ruby-forum.com/.
2005 Dec 23
1
Handling file uploads & mixing class and instance vars
Hey Everybody,
This is the only way I''ve been able to get my file
upload to work:
class Item < ActiveRecord::Base
def file=(upload)
@file=upload
end
def after_create
File.open("public/items/#{self.id}.jpg", "w") {
|f| f.write(@file.read) }
end
end
The upload form has "file_field ''item'', ''file'',
2010 Aug 18
6
Once I added this HABTM, one of my 'through' relationships, on a non-habtm model, seems to have broke?
I''m a rails newb and have been Googling about this, but I''m still stumped.
Not showing everything here, but basically it should be a pretty common
setup so I''m sure others know what I''m doing wrong.
- A meter can belong to many meter_groups
- A meter_group can have many meters.
- A user can ''subscribe'' to viewing a meter_group (Subscription)
2006 Feb 04
4
Page caching feeds and cache file extensions
I have a feeds controller which generates RSS and Atom pages. I put
''caches_page :show'' in it. The problem is that the pages are saved with
an html extension. As a result, browsers display the cached feeds as
HTML rather than XML, and feed validators complain.
There''s an option to set ''Base.page_cache_extension'' globally, but I
don''t want
2006 Feb 13
2
categories and admin/categories - different controllers and templates?
Is there some way to have these two sets of URLs use
totally different controllers and templates?
categories/list
categories/show/1
admin/categories/list
admin/categories/edit/1
admin/categories/destroy/1
admin/categories/update/1
Besides, of course, using different controller names
;). The first URL is publicly accessible, while the
second contains admin functions. Also, with the
second,
2005 Nov 06
11
Ideal Rails / Apache config?
Hi All,
Just about to set up RoR on our server and was wondering what the
ideal setup for RoR is these days? Apache 1? Apache 2? fCgi?
Any guidance would be helpful!
Thanks,
-Adam
2006 Apr 30
2
HABTM: Find sorted by number of associations
Hi,
I''ve been googling and searching the forums for some time
but can''t seem to find exactly what I''m looking for.
Suppose User HABTM Products (for example a favorites list). I would like to
construct a single query for finding Products ordered by the number of
Users that have flagged them as favorites.
Although I can construct the query using SQL a with a
2006 May 08
8
enforcing special behavior of child rows in HABTM
Hi,
I have a scenario where a doctor can have one or more specialties.
For each doctor, one and only one of her specialties can be designated
as primary.
So I have tables called doctors, specialties, and doctors_specialties,
the last of which has a boolean is_primary column.
The doctor model class specifies that:
has_and_belongs_to_many :specialties
I want to enforce, at the lowest possible
2006 Feb 07
17
Easy way of dealing with nil properties in templates?
Is there an easy way to deal with nil properties in
templates? All I''m aware of are these methods, and
it''s quite tedious and surely violates DRY.
<%= @member.name unless @member.name.nil? %>
<%= @member.name.to_is %>
<%= "#{@member.name}" %>
csn
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2006 Jun 16
3
Does HABTM support non "id" FKs?
Quick question. Say I have a geographical database with counties and zip
codes where counties have and belong to many zip codes.
zip_codes (id, zip_code)
counties (id, name)
When I create the association table, the Rails way says to do the
following: counties_zip_codes (county_id, zip_code_id).
However, given that zip_codes.zip_code is itself a candidate key, I
would much prefer to do the
2005 Nov 16
1
HABTM: deleting records based on attributes
Hello All,
I am new to ROR, and can''t seem to get HABTM to cooperate entirely...
however I might be abusing it! Before I try a different strategy I
thought I''d ask here and see if I''m missing something simple.
So say Projects and Companies are related. Projects can have multiple
Companies, and Companies can be on multiple Projects. But, the same
Company can also
2006 Mar 22
2
habtm vs. has_many/belongs_to
In AWDWR David says (pg 232),
"When a Join Wants to Be a Model:
While a many-to-many relation with attributes can often seem like the
obvious choice, it?s often a mirage for a missing domain model. When
it is, it can be advantageous to convert this relationship into a
real model
and decorate it with a richer set of behavior. This lets you
accompany the
data with methods.
As an example,
2011 Feb 07
2
Search HABTM relationship in ActiveRecord
Consider the following scenario:
Book has_and_belong_to_many Category.
In other words, a category may have a lot of books, and a book can
have more than one category.
What is the best practice to query all books related to some specified
categories.
For example, if I have following books
"From Java To Ruby" - Category: Java, Ruby
"Ruby Programming" - Category: Ruby