Displaying 20 results from an estimated 10000 matches similar to: "Understanding Form_for"
2009 Jul 31
8
Would like include model association in to_xml
i have:
class Library << ActiveRecord::Base
has_many :books
end
class Book << ActiveRecord::Base
belongs_to :library
end
in my controller i have:
render :xml=> Library.find(:all).to_xml(:include=>books)
but, i would like put a condition in the books ( e.: pages >= 100 )
i would like to create a xml with all Libraries, but books with pages more
than 100)
How to
2009 Sep 29
10
rails 2.3.3 upgrade shows error
You have a nil object when you didn''t expect it!
You might have expected an instance of Array.
The error occurred while evaluating nil.<<
any ideas ?
Application works fine with rails 2.1.0
Sandip
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http://funonrails.wordpress.com
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http://brandpotion.com (Latest project released)
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2011 Feb 17
16
Unindent ERB output
Hi all,
I''d like to unindent a block of ERB specifically to combat the extra
spacing being added to content inside <textarea> by the browser. Is
there such a feature in ERB?
I shall denote indentation with underscores in the pseudo code example
below.
Thanks in advance,
Khoan.
myview.erb:
<html ...>
__<%= render ''form'' %>
</html>
2009 Nov 17
6
after changed the tag i got the same eror
SyntaxError in Upload#index
Showing *app/views/upload/uploadfile.rhtml* where line *#10* raised:
compile error
app/views/upload/uploadfile.rhtml:10: syntax error
Extracted source (around line *#10*):
7: <% end %>
Trace of template inclusion: app/views/upload/uploadfile.rhtml
RAILS_ROOT: /home/malathi/www/upload
Application Trace <http://localhost:3000/upload#> | Framework
2011 Apr 30
8
"uninitialized constant PostsController::Post"
This time i read scaffold tutorial very carefully and finally try to
generate a form without using the scaffold(just used a controller and
view ).what i have done till now ,is as follow.Using rails 3.0.7.
"rails generate controller posts
index"
1) post_controller.rb
class PostsController < ApplicationController
def index
@post=Post.new
2009 Mar 04
10
total per user
so I am trying to sum month over month the amount that a user has
posted. So for example:
User 1: Jan $3000 Feb $4000 March $1500, etc. I can get this to work
if I sum totals (aggregate of all users) but just not by user.
Here is my code in the controller:
def index
@users = User.find :all, :order => ''name ASC''
@deal_groups = Deal.find(:all).group_by {|t|
2010 Nov 16
6
rails 3.0.3 and visit_CoercibleString errors
From having no errors with 3.0.2 I now see lots of these errors when
running my tests.
undefined method `visit_CoercibleString'' for #<Arel::Visitors::MySQL:
0x000001074f4298>
Anyone know what this is?
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2011 Dec 17
7
How does bundler know whether Gemfile has changed?
I am trying to understand how bundler works. Looking at the manual [1] it says
"If a Gemfile.lock does exist, and you have not updated your
Gemfile(5), bundler will fetch all remote sources, but use the
dependencies specified in the Gemfile.lock instead of resolving
dependencies."
The question is how does it know whether Gemfile has been updated? I
expected to find something in
2009 Sep 24
8
Drop down list ?
Hi Gurus, I''m trying to tackle a drop down list. I have category and
item dbs, and they''re wired up with category has_many :items and item
belongs_to :category, and an item has a category_id. I have this code
in my new/edit.html.erb for item:
<%= f.collection_select :category_id,
Category.find_main, :id, :header, {}, :multiple => false %>
And a pretty drop down list
2010 Jan 03
9
ferret search in production
Hi there,
after recently deploying my app, I have noticed that the search
results are not being displayed...
When I look in my app, I also notice that the apps content (search
criterea) is not being indexed, so I dont have an index folder being
created.
I read on a google post that it may be that the ferret.yml server
isn''t started (or perhaps the content of this file are not right)
I
2009 Aug 01
23
Hi doubt in unit testing
def test_check_for_validity
post=County.new(:name=>"myname",:description=>"mydesc")
assert post.save
end
above is the method and when i run unit test it is saying as
1) Failure:
test_check_for_validity(CountyTest) [/test/unit/county_test.rb:10]:
<false> is not true.
what does it say i cannot under stand
please help
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Mobile -
2011 Nov 29
7
gem for storing and tracking changes
Hi people
I want to know which is the best gem or plug-in to store and track
register changes for a rails 3.0.9 app
Hope you can help me, thanks
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2010 May 26
25
Extremely slow start up with ruby 1.9.1 vs 1.8.7
I created a fresh new rails app, no gems, no nothing. Completely
unmodified. Doing anything that initializes rails takes 2 - 3 times
longer in ruby 1.9.1 than it does in 1.8.7. Obviously with a fresh rails
app, this is only 2 - 3 seconds extra. But with a decent sized app, this
can take up to 25 seconds for rails to initialize, vs the 12 seconds in
1.8.7.
I''ve been racking my brain on
2012 Aug 13
9
Using Jquery plugin "tokenInput" with rails
Hi,
I made a contact manager app using rails. I added TokenInput plugin to
introduce an instant contact search functionality in it. Tried following a
railscast http://railscasts.com/episodes/258-token-fields but have been
struggling with it for a while. Following is the code I use in my view
<%= form_tag({:action => ''show'', :id => @contact_tokens}, :remote =>
2011 Aug 16
9
Rails Looping with different attributes
Hi Everyone,
I am trying to solve this problem, but couldn''t able to get the
solution. I hope i will get some help here.
I am using these three find methods to get different types of
devices. I dont have any relationships between any models.
windows_devices = BaseManagedEntity.find(:all,
:select => "b.BaseManagedEntityInternalId, c.NetworkName,
c.IPAddress,
2012 Jan 17
3
Saving without callbacks in Rails 3
Hi all,
Saving without callbacks is not working in rails 3.1.
please tell me alternatives available......
Thanks,
Kingston
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2010 Mar 20
4
Displaying an image in a Rails form_for
Hi,
I''ve got a public\images\DownArrow.jpg
and app\views\expenses\new.html.erb that want to present this image in
the following context:
<p>
<%= f.label :vendor %><br />
<%= f.text_field :vendor %>
<%= f.image "DownArrow.jpg" %>
<br>
<%= select_tag "test",
options_for_select(@current_vendors.collect {
2011 Apr 25
30
NoMethodError in Book
I got a following error.
NoMethodError in Book#new
Showing /home/amrit/boook/app/views/book/_form.html.erb where line #1
raised:
undefined method `model_name'' for NilClass:Class
The content of _form.html.erb file are:
<%= form_for(@post) do |f| %>
<% if @post.errors.any? %>
<div id="error_explanation">
<h2><%=
2011 Dec 17
39
Stack Level Too Deep Error (can't seem to figure it out)
Hi all,
I am running into a weird issue where my application is giving me a
stack level too deep error. I can''t seem to find where my code is
throwing this error. On the machine I developed this code on, this
error does not show up when I run rails s but when I move the code to
another system to run it this error shows up.
The system that this code runs fine on is a mac os x machine
2011 Oct 26
3
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