similar to: inserts now set unset columns to null

I have some code that generates the following log entries (annotated with #). The code takes place inside a transaction. A record is inserted. Then I get the of the newly inserted record, then I explicitly select that record (this is just to illustrate the problem). Then another insert is attempted and fails because of a constraint that requires one of the values entered to be an existing

Hi all, I have a column that peeks its value from a sequence (postgres) some times. Other times, I set it to a certain value. This column has a default value of "nextval(''the_sequence'')"... When I want that this column peeks the value from the sequence, I do this: obj = Mymodel.new obj.some_column1 = blah obj.some_column2 = blah obj.some_column3 = blah obj.save! but

Hi, I''m new to ruby and rails. I just created a simple update page and the update works fine if all form fields are filled in. However there is one field that should never be allowed to be blank. So I put this in my model: class Topic < ActiveRecord::Base validates_presence_of :dr_title validates_length_of :dr_title, :minimum => 1 So, when I submit the form with a blank

I''m trying to set up a search field with autocomplete. I have verified that the server is called when I type a letter in the box, and that the handler creates the correct instance variable. However, I never see the partial that is supposed to be rendered. Here are the relevant files. I included their paths/names in case I am missing some nuance of the naming conventions.

I have this code in a view: <% for topic in @topics %> <%= topic.id %> <%= topic.dr_title %><br/> <ul> <% for doc in topic.child_documents %> <%= doc.dr_title %><br/> <% doc = nil %> <% end %> </ul> <% end %> Though the topic titles and IDs display correctly,

--Apple-Mail-30--530209534 Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit I recently reformatted my hard disk on my MacBook Pro using a clean install of Leopard (had Leopard before too but not from a clean install). I had to reinstall R, and therefore installed the new version 2.7.1 for Mac. In preparing some graphs, I noticed