similar to: Using helper method of another model

I want to have Rails 1.1 + Rails 1.0 on the same PC and be able to load my script with a different version each time. Is it possible? -- Posted via http://www.ruby-forum.com/.

Hi, I want to update an existing row in table "items" where items.id == 10 I tried this: item = Item.new item.f1 = ... item.f2 = ... ... item.id = 10 item.save I got an error Duplicate entry ... for key 10 : INSERT INTO items ... How do I make item.save to use UPDATE instead of INSERT? -- Posted via http://www.ruby-forum.com/.

Suppose I have three tables - authors, posts and topics. Every post have a topic and every topic has an author, so I have posts.topic_id and topic.author_id. When the author is guest (not registered), author_id is nil. I need to find all the posts (in one query) where every post have all the information of the topic and the auther, so if p is one of those posts I could get the name of the

I have a name of an attribute and I need to get its value and set a new value for it: x1 = a.foo a.foo = x2 How do I do that if the name of the attribute ''foo'' is a var? I thought about doing this: attribute_name = ''foo'' x1 = a.attributes[attribute_name] a.attributes[attribute_name] = x2 but this is a bypass and I''m quite sure it would cause

Dear helpeRs- I'm using a for loop to create a series of models. I'm trying to assign a name to each model created, using the loop index. The loop gets stuck at the name of the model, giving the error "target of assignment expands to non-language object". The linear model runs without error; only the name is problematic. Here is the current loop syntax. The use of dat

Dear R community, I have a fairly large file with variables in rows. Every variable (thousands) needs to be regressed on a reference variable. The file is too big to load into R (or R gets too slow having done it) and I do now read in line by line with "scan" (see below) and write the results to out. Although improved, this is still very slow... Can someone please help me and suggest

Hello all, I have two comboboxen, comboA is popultaed when :controller/list is retrieved first time. When comboA is selected, I want to auto-populate comboB (modelB belongs_to modelA). The population of tableC (modelC belongs_to modelB and belongs_to modelA) should not populate until a "GO" button is clicked (link_to with submit). Help? I need an example of how to filter the post

Hello, I''m using find_with_ferret to search multiple models and it works great. The trouble is I need to filter the results using :include and :conditions. I get two errors depending on the syntax I use in the search. Reading the source, I see the retrieve_records method seems to filter the :include and :conditions so that they only apply to the relevant model when searching

Dear List, I apologize in advance if this is silly. I tried to replicate an analysis I did previously in SPSS using R, and was surprised to find different results. So my question is: shouldn't the following SPSS syntax REGRESSION DEPENDENT INC89 /METHOD=ENTER hiedyrs experien SE93rec. Yeld the same results of the following R command modelB<-lm(INC89~HIEDYRS+EXPERIEN+SE93REC) I

I use model comparison with glms without mixed effects with anova(modelA,modelB), with mixed effects glm (glmmPQL), this doesn't work. Is there a way to compare model fits with glmmPQL's? Paula M. den Hartog Behavioural Biology Institute of Biology Leiden Leiden University [[alternative HTML version deleted]]

I am trying to run some functional (or are they unit?) tests on my application_helper.rb. So far, I''ve not had any success in being able to call the methods defined in application_helper.rb. Here is my app/test/functional/helpers.rb require File.dirname(__FILE__) + ''/../test_helper'' require File.dirname(__FILE__) +

My "application_helper.rb" become to large. I have basic functions that I use for all projects. Is it possible to define thoses functions inside an external "basic_helper.rb" and include it in "application_helper.rb" ?

I''m trying to get the unit testing for a new project to use the wonderful :memory: database specification for SQLite. However, like many people before me, I can''t get the schema to import or have anything else useful. Initially, the error I get is: /usr/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.1.0/lib/sqlite3/errors.rb:94:in `check'': cannot rollback - no transaction is

HI I don''t understand what happen .. if I use the script/console : >> include ActionView::Helpers::DateHelper => Object >> include GLoc => Object >> time_ago_in_words(Time.now, include_seconds = false) => "moins d''une minute" I get the correct answer.. but I I write in my view <%= time_ago_in_words(Time.now, include_seconds = false)

Hello, I''m facing this problem while trying to extend the parse_redmine_links helper method in Redmine-1.1.0 (Rails-2.3.5) from my plugin. My idea is to use alias_method_chain so the extended version could call the original version and adjust the result to it''s liking. Anything I''ve tried so far exposes this behavior: the first render of a page uses the extended

Hello, I try this : in application_helper.rb ----------------------- def lnk bla return link_to bla, { :controller => bli , :action => "blo" , :id => "blu" } end in file.rhtml ----------- <%= lnk "yo!" %> This return an error. There is a way to do this or something similar, or this is completly impossible ? Thanks

I'm planning to add multiple-database support for searches to my "Xappy" python wrapper (more on this wrapper later, but for now, see http://code.google.com/p/xappy for details). This is reasonably straightforward, because Xapian supports this nicely: except that "Xappy" generates a "fieldname->prefix" mapping automatically. The prefix which corresponds

I have a simple Yes/No selection list that I am using in a number of places. Thinking that I could DRY things out a bit, I added it to application_helper.rb ... YES_NO = [ [ "Yes", true ], [ "No", false ] ].freeze So I figured I would use it there instead of in each model.rb where needed. anyway, in webrick screen, I am continually seeing this...

I''m using bundled_resource, login_engine, and a few other plugins. It appears Rails considers plugins in alphabetic order. Turns out that there is a particular order that will work and alphabetic ain''t it. The login engine must be loaded first. Bundled resource then includes ''application_helper'' and the application helper includes LoginEngine. If

Hi all, I''m trying to add a common menu to all pages in my application. It is just a set of links I want to display. I''m having trouble deciding where to put the code. Below is what I''ve tried to get out of the "Four Days on Rails" tutorial but no luck. Any help would be appreciated. Am I on the right track? Thanks, Sam