similar to: Linking to "Next Entry >>" from the current Entry Page

Hello, Is there some built-in facility for fetching the Previous or Next record from a table? Assume the command find_by_name has been issued, and the variable @name contains the name "John Doe". I''m looking for something like find_next(@name) and find_previous(@name). What''s a good way to pursue if one has to roll their own methods? Thanks for the help, gk --

Hi, Quick question (which means that I think there should be an easy answer)... When I am in the "show" view, I''d like to add 2 links, one for previous and one for next record so that the user can go on to the next "result" without having to go back to the ''list'' of results. However, I can''t find my way about this problem :-S

Does ActiveRecord offer a simple solution to get previous/next records relative to a certain record? For instance, say I have this table: PEOPLE id | name 1 | john 2 | mary 3 | bob Using p = Person.find(2), is it possible to get the previous (john) and next (bob) records using perhaps something like p.previous and p.next? If not, how can I do this without resorting to ugly queries? Thanks in

Hi, I know about pagination but dont want to use that option if it all possible. How in a collection of posts can i check if the there is a next item in the collection and then add that an object. For instance: //Returns all the posts into a collection called posts @posts = Post.find(:all) //Returns a specific post based on an id @post = Post.find(params[:id]) //How can i return the next

Hey all, I''ve just put together a little plugin to easily access the neighbours of a given model in a particular order. Read on if interested. Install: script/plugin install http://svn.viney.net.nz/things/rails/plugins/acts_as_ordered Usage: class Person < ActiveRecord::Base acts_as_ordered :order => ''first_name'' end Say you have people with first

Hello! Sometime ago I ran across a webpage where someone had identified the full callback sequence for an object lifecycle including AASM with it''s :enter and :exit and whatnot callbacks. Unfortunately, I can''t find it and searches don''t seem to help. Does anyone have a reference to a page that shows the callback sequence with Acts As State Machine (the gem)? I think

I have a situation in which I want to validate a number is not zero. Both positive and negative values are acceptable, just not zero. validates_numericality_of has an :equal_to attribute, but I don''t see a :not_equal_to. I have not yet been able to find anyone who has discussed this. I did find information about custom validators, so I am now using a custom validator to check the field

i install quite a few (debian linux) internet gateway boxes with samba installed so that the client can get their /var/www directory in network neighbourhood. in order to diagnose network faults (i.e "WTF can't the stupid doze boxes see/login to/etc the samba share?"), i often need to find out the netbios name of a machine. for some reason this seems to an extraordinarily difficult

Booting a fedora 19 domU failed because a it could not properly parse the grub.cfg file. This was cased by set default="${next_entry}" This statement actually is within an ''if'' statement, so maybe it would be better to skip code within if/fi blocks... But this patch seems to work fine. --- tools/pygrub/src/GrubConf.py | 2 ++ 1 files changed, 2 insertions(+), 0

Hello, I am trying to get to Jain Sip softphones to call one another via an Asterisk server. When I call from phone 1 to phone 2 there is audio transmission both ways, but when I call from phone 2 to phone 1 I don't get audio transmission and reception both ways. When I look at the asterisk log file it has an entry which says: "Oooh, format changed to 2". Would anyone know why

Hi - I''m trying to group records based on some attribute they or an association of their''s have. The simplest example I could think of to drive my point is this: Assume the following model associations (pardon my butchering of rails) - Faculty has_many :courses Course belongs_to :faculty I want to paginate courses based on the name of the faculty they belong to. The paging

I''m sending plain text and html emails by having multiple files for each email I send. For example, for my registration email I have a registration.text.plain.erb file and a registration.text.html.erb file. I want to use a layout for the html version of my emails. In my mailer I put: class AccountsMailer < ActionMailer::Base layout ''email'' ... end

So I''m happy to see that ActionMailer supports layouts now (it may have for a while, but I just now realized it). But I don''t see a way to turn them off selectively or by multipart type. For example, if I have a layout that''s really simple in "layouts/ email.html.erb": <div style="border:1px solid gray"> <%= yield %> </div> I

Acts_as_soft_deletable is a rails plugin that provides the ability to soft delete or disable models. When models are destroyed, they will be archived so that they can later be restored easily. Its similar to acts_as_paranoid but uses a different approach that should make it a little more foolproof. See the README at the following url for a better description. github url:

Hi, I''m announcing Hirb, a mini view framework which enables script/ console to provide custom views. Out of the box your activerecord objects come back as ascii tables. You can also configure your tree-based models to return as ascii trees: Numeric |-- Float |-- Integer | |-- Bignum | `-- Fixnum |-- Date::Infinity `-- Rational I''ve written two tutorials on

Hi all: For example I have: class Color < ActiveRecord::Base belongs_to :ball end class Ball < ActiveRecord::Base has_many :colors end What I want to do is to write a method that: 1. takes the result of Ball#colors, which is an array of Color objects 2. do something with the array 3. return the result but I want to name my method Ball#colors, i.e. I want to overload the generated

I''m attempting to make a simple program, just combine two images and output a .jpg file. Here''s what I have: class PicController < ApplicationController require ''RMagick'' def index im1 = Magick::Image.read(''1.jpg'') {self.size = "81x81"}.first im2 = Magick::Image.read(''2-1.jpg'').first result = im1.composite(im2,

So I have my extensions.conf (http://www.infiltrated.net/exten.stupidity.conf) shortened in case someone wants to look. Has someone encountered the following? I've racked my brain on this for too long... I have two contexts, day and night... Caller (Daytime) --> Dials an extension --> Caller hears extension ring on receiver --> Call goes through Caller (Night) --> Dials an

hi all, i am looking for a host for my ROR web app. the target audience will be 70% from mainland china, and 30% from the rest of the world. i dont want a chinese hosst because: 1. it''s very slow for the rest of the world to access to it. 2. the speed is quite ok for china to access the us sites. both dreamhost and godaddy provide similar budget plans, and i saw them all from this

Considering an object with several has_many :through => associations, what is the ''best'' way to handle validations? As an example: class Student < ActiveRecord::Base # some attrbutes like # :name # :grade # relationships has_many :students_assignment, :dependent => :destroy has_many :assignments, :through => :students_assignment has_many