similar to: Problems with belongs_to table joins

Hi, I have two objects: Contacts Lists I want to be able to add multiple contacts to multiple lists. I''ve created a linking table and a form that allows me to select the contacts using checkboxes, but I''m having some problems with the controller and model. I receive the following error message when I submit the form: Mysql::Error: Cannot add or update a child row: a

Hi, I have the models and db below and am putting together a scheduling application. With what is laid out below (or any suggested changes) how would I find a contractor for a job based on the contractor being available on a specific weekday, at a specific time and not currently booked in to a job during the same time? I?m new to Ruby and Rails and making pretty good progress but I must admit I

Hi, I have the following code: @conversation_pages, @conversations = paginate(:conversations, :per_page => 20, :joins => ''LEFT JOIN messages on messages.conversation_id = conversations.id ''+ ''LEFT JOIN email_addresses on

Hi, I''m using Jquery on jrails. I used ajax to submit for one textbox. I want to put an image when ajax is calling. But i''m getting problem here. Please solve my problem.Here is the part of code <label>Prouct Category</label><br/> <%#= collection_select("product", "type_1" , product_types,

can anybody guide me on how to create inner joins and left and right outer joins in RoR as both the tables has "has and belongs to many relationships" and there is ajoin table as well

I have an interesting problem that I am not sure how to approach so I thought I''d ask for some advice. I have an a shopping cart application that uses HABTM table joins. I have a table for products (music) and one for artists associated with the products. Any product can have one or more artists associated with it. I then create a product listing of the whole catalog like so Artist

Hi I am not clear about how to use INNER JOINS and IN(...) sub query in rails. Is there a good tutorial which helps newbies step by step ? I have a model Library model Authors model Fictions The relation maybe explained as: Library has many fiction books authors have many fictions The authors table has information like full name, period of life, country etc. In that case, I want to

Hi, Due to some performance issues, I want to use a custom query for a find method: def find_in_state(state) State.find :all, :limit => 10, :conditions => [''s.id = ? AND '' + ''s.id = c.state_id AND c.state_id = ? AND '' + ''c.id = col.county_id AND

Two separate questions in this post. 1. I have a model with two foreign keys to the same table. In this case, the associations represent "categories", so I have category1_id and category2_id. Doing belongs_to :category, :foreign_key => "category1_id" works, and I can use foo.category, however when I want to access the second category, I am forced to use SQL. I realize

Hi all, I''m pleased to announce that Reductive Labs has joined the Open Management Consortium: http://www.openmanagement.org/ This is a group of companies and projects committed to enhancing open source management software software; it was founded in May of this year. Hopefully this will help enhance the visibility of all projects involved and encourage more focus on this space in the

This more of a best practices question. I''m implementing group functionality in a couple of applications. The typical method, using HABTM, where you create a group and add members, is typical. For example, Users, Groups and Messages. Does anyone prefer tagging instead? Any advice would be great! -- Lon Baker http://www.speedymac.com AIM: spdemac

Hello there, I''m stuck! I''m trying to write a mini app to track versions of songs that have been sent out to members. I have the following tables/models: songs/song has_many :releases versions/version has_and_belongs_to_many :members belongs_to :songs members/member has_and_belongs_to_many :versions songs ===== Song1 Song2 Song3 members ======= John Paul George Ringo

My environment: Ruby 1.9.2p290, Rails 3.0.9 and RubyGem 1.8.8 unfortunately I have an issue when come across multiple database. The situation is this: I have two model connect with two different database and also establishing association between each other. database connection specifying in each model, look likes class Visit < ActiveRecord::Base self.establish_connection "lab"

Can I get some feedback on ticket 5838? I''ve got a patch and testcase that works. Rick seems to be opposed to the patch because I''m not solving all the join issues, but I''d argue that you should at the very least get the sort of object your asked for back. Account.find_by_sql() should -never- return something other than Account objects. -- Kevin Clark

Hi, As I recall, 3.0.25a creates it's OWN krb5.conf file based on info it gets back from the DC to try to handle site stuff (so it uses the 'nearest' kdc, etc). I forget exactly how this mech. works, but if the kdc returned with the site info (which subsequently gets built into samba's personal 'krb5.conf' file) is down, or replication is off, your kinit would work,

Hi! I have the next model with the follow associations: class XmlGen < ActiveRecord::Base set_primary_key "pk" belongs_to :serie, :foreign_key => "series_fk" class Serie < ActiveRecord::Base set_primary_key "pk" belongs_to :study, #Relaciones entre las clases Study y Series. A study has many series. :foreign_key =>

Hi Patrik, > The "-disable-cross-class-join" flag prevents this problem from > happening but I'm afraid it will also prevent other (non-problematic) > cross class joins from happening so I'm hesitant to use it. > > So, should this not happen, or is the flag needed, or is this just a > sign that we have a really weird or buggy register model? Is this some recent

Sorry, our backend is currently based on LLVM 3.0. (We are currently in the process of rebasing.) /Patrik Hägglund -----Original Message----- From: Anton Korobeynikov [mailto:anton at korobeynikov.info] Sent: den 19 januari 2012 14:28 To: Patrik Hägglund H Cc: llvmdev at cs.uiuc.edu Subject: Re: [LLVMdev] Problem with cross class joins in the RegisterCoalescer Hi Patrik, > The

Hi there, As described on voip-info here http://www.voip-info.org/wiki/view/Asterisk+RealTime+Queue, if I use realtime queues, alterations to the list of members don't alter until a new call joins the queue. Is there anything I can do about this? I've tried looking for a bug number, but to no avail. I use realtime queue members for logging in and out, and I'd like it to take

John R. Dennison wrote: > On Fri, Jan 17, 2014 at 05:55:54PM +0100, Ljubomir Ljubojevic wrote: >> >> Ok, what ever, I am done wasting time on you. > > Excellent. Now if others would stop responding to the trolls it would > be even better. > Can't resist: I think he's trying to get our goat... and everyone knows what happens when a troll runs into a goat....