Displaying 20 results from an estimated 500 matches similar to: "Heeelp - no idea what''s going wrong."
2009 Oct 15
10
AJAX - how to have multiple select form sets implemented?
hi, there :)
Consider a blogging application whereby a user is trying to add a new
blog.
He/she has to select a category. Upon selecting a category from a drop
down box, a new sub categories drop down box will be created (hence an
AJAX call). Got this implemented and it''s ok.
Now, let''s assume that a given blog can have multiple categories (and
subcategories).
For example, a
2006 Apr 15
8
Inheritance in Rails - I need some help
I''ve got a model, "category" and another model "subcategory." Each
subcategory belongs_to a category, and a category has_many
subcategories.
What I need to do is set it up so that I can search Category and
Subcategory with one .find call. So:
Category.find(:all, <etc)
will find categories and subcategories.
Now, I believe this can be done by making
2006 May 23
7
has_and_belongs_to_many question
Hello,
I am trying to make the "switchover" to programming my apps in Rails and
have a question about database structure.
In the past i would structure a many to many like this:
categories
----------------------------------------------------
| id | name |
----------------------------------------------------
1 Some Category
2 Another
2006 Apr 11
2
Finding items from two models - then merging them
I have a model, listings. Listings habtm categories and subcategories,
which are seperate models.
What I want to do is search categories for certain items, like so:
@categories = Category.find(:all, :conditions => ["name LIKE ?",
"#%{:search_string}%"
and subcategories for the same:
@subcategories = Subcategory.find(:all, :conditions => ["name LIKE ?",
2006 May 07
2
Category and subcategories in database
I have a project I''m trying to decide if I want to use rails for. I''m new
to rails, so I''m not sure how easy it would be to implement something like
this using ActiveRecord. Here''s the situation:
Category > subcategory > subcategory > product
Category > subcategory > product
Some categories will have many subcategories, others few. I want
2006 Mar 31
7
Checkboxes expand to show new options when checked?
I''m writing a simple CMS where every item ("listing") HABTM categories
and subcategories (which themselves belong_to a category). What I''m
trying to do now is create a UI effect for listing creation: when you go
to create a listing, only the possible categories will be shown, but
when you select a category a set of new categories will be displayed
like so:
Lions
2006 Apr 07
13
Pop up menus - any ideas?
I''ve got a menu in which I have all of my categories as links. Each
category also has subcategories. I want to set it up so when you mouse
over the category the subcategories will pop up (to the right of the
main list, but that''s just CSS). This is what I have so far:
<% for category in @categories %>
<a href="#"
2008 Dec 25
5
One question about Dynamic Select Menus
Hi all,
Merry X''mas first :-)
I have "Product","Category","Subcategory" 3 Model, and when new
"Product", I want to use "Dynamic Select Menus" just like Ryan
mentioned in http://railscasts.com/episodes/88-dynamic-select-menus
I have everything down. But when I visit the js file, I got following
error
Showing
2006 Jul 23
3
Newbie: Display hierarchical Records in a view
Hi,
I have two models: category and subcategory. (one to many
relationship), and a controller ''home''
I''d like to display all the categories and their sub categories in the
view: home\index.rhtml.
I have a method in the ''home'' controller'' like this:
def list_categories
@categories = Category.find(:all)
end
This list all the categories
2008 Apr 01
1
Navigation Problems
Hi,
I am having problems with my page. I have a banner and navigation bar in
controller_name.rhtml in app/views/layout. Can someone please help?
Thanks
In the navigation bar, I have the following links:
Category1
Sub-Category1
Sub-Category2
Sub-Category3
Sub-Category4
Sub-Category5
Sub-Category6
In the main content, I have the following links:
Sub-Category1 edit delete
2006 Aug 06
1
Newbie: populate 2nd dropdown list based on user''s selection in 1st dropdown list
Hi,
I am creating a form that a user can post a message based on his
selection on category and subcategory. (A category has many
subcategories.)
How do I dynamically populate subcategory dropdown list when user
chooses a category from category dropdown list?
Thanks in advance.
--
Best regards,
Ming Ma
2006 Jun 26
4
has_many :through
first, the models:
class Listing < ActiveRecord::Base
has_many :keyword_links
has_many :keywords, :through => :keyword_links, :conditions => "active =
1"
end
class Keyword < ActiveRecord::Base
has_many :keyword_links
has_many :listings, :through => :keyword_links, :conditions => "active =
1"
end
class KeywordLink < ActiveRecord::Base
belongs_to
2006 May 12
2
Has many through join table issues
I''m trying to wrap my caffeine soaked brain around has_many :through
following along at:
http://rails.techno-weenie.net/tip/2005/12/23/teaching_your_blog_model_new_tricks_with_has_many_through
I think my models are a little more complex than what fits this
narrative.
I have a directory of members, each member can belong to multiple
categories.
The category table references itself
2006 Jul 02
4
:order in partial
Hi,
i was looking through the docs and couldn''t find a good clean solution
for ordering a partial with an :order clause.
say i was iterating over categories and thier corresponding
sub-categories (regular belongs to) and wanted to order the
subcategories according to a certain column;
<% for category in @categories %>
<% render: partial => ''sublist'',
2006 Mar 01
9
sortable tree?
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Hash: SHA1
Hi *,
I am new to this list, so please excuse me if this has been covered
before (unfortunately the search function at
http://www.ruby-forum.com/forum/10 is disabled at the moment).
If yes, then a pointer to a solution would be great.
I want to create a sortable tree with scriptaculous Sortable. There are
several categories and subcatgories:
cat_a
2009 Mar 11
1
Reshape question.
This hopefully is trivial. I am trying to reshape the data using the reshape package.
First I read in the data:
a2009 <- read.csv("Total2009.dat", header = TRUE)
Then I trim it so that it only contains the columns that I have interested in:
m2009 <- melt(a2009, id.var=c("DayOfYear","Category","SubCategory","Sku"),
2009 Apr 05
5
Use a value from a different model
Hello,
I cannot find the issue and it drives me crazy :(
let''s simplify. I have 2 models: saving and purchase_type
a *saving* corresponds to a *purchase_type* e.g. new sourcing or
renegotiation
a saving has exactly one purchase_type and a purchase_type has many
savings.
when I try to display the list of savings and their purchase type
(name, not Id), i get the dreaded "You have a
2006 Feb 25
5
MySQL client ran out of memory
I''m getting the following error unexpectedly for my rails app. I just
exported the databae from dreamhost and imported it on textdrive for
my rails app.
Mysql::Error: MySQL client ran out of memory: SELECT COUNT(*) FROM
comments WHERE (comments.listing_id = 2666)
/usr/local/lib/ruby/gems/1.8/gems/activerecord-1.13.2/lib/active_record/connection_adapters/abstract_adapter.rb:88:in
2006 Mar 29
0
Many-to-many relationship with multiple models?
I have a simple CMS I''m creating, and the primary model is the
"listing". A listing habtm (has_and_belongs_to_many) categories (up to
two) - allowing the listing to print its categories and a category to
print its listings. I also need subcategories, which are different from
categories in two ways: a listing can have as many subcategories (from
it''s two categories)
2009 Nov 10
3
HEEELP!!!!
Hello.
My name is Ana. I?m doing an eology master, and I?m just learning how R
works.
I have a Mac OS X 10.5.6, and I?m tryng to run just a simple ANOVA
nanalyses.
I dowloaded R version 2.10.0, and it seems I have problems with the script.
I don?t know what to do, I?ve already change the languages, be sure of
being
working in the correct directory and doesn?t work
the script is:
#1. example