similar to: two layers of has_many

i''ve figured out how to use the next and previous links with the paginator class but now i''m trying to figure out how to display all the page numbers in between. looking through the rails api, i found paginator.each() but i''m not sure how to use it, or if that''s even what i am looking for. also, is there a way to limit the amount of pages like some sites

I have a working Rails app with several related tables, but can''t find an answer to this question in the Dave Thomas Rails book. Imagine for example: table departments with columns: id, department_name table employees with columns: id, department_id, employee_name and of course the employees table has a constraint foreign key (department_id) references departments(id) So this is

How do I validate that a model object''s attribute is a valid foreign key? The problem is, I can''t check if the attribute is a valid foreign key if the attribute doesn''t even exist. For example, every employee must be in a department. In the following code, if an employee''s department_id is not present then Department.find_by_id(department_id) might cause

I''m try to verify users on login. Here is my code: def self.authenticate(username,password,account_code) employee = self.find(:all, :select => "e.id, e.first_name, e.last_name, e.username, e.account_id, e.department_id, o.pay_type_id, o.admin_yn, o.payroll_yn, o.files_yn, o.dept_report_yn,e.salt, e.hashed_password", :conditions => ["e.deleted_yn=0 and

Hi all, After working on my first rails app and having handed over some very sophisticated coding from a lot of you guys. My app does what I want it to do, but I''m no where near the end yet, and it seems that the KISS and DRY objectives already went down the drain. It could be lack of knowledge, only doing Ruby on (and) Rails for a month, but I''m stuck on the following:

Hi everyone, I have a Department model that has_many people. How do I go about finding all departments with more than 0 people? Department.find(:all, :conditions => Department.people.size > 0) That, of course, doesn''t work, but it was as close as I could come. Thanks! Sean

I have an array @dpt_ids ex : @dpt_ids = ["43", "48", "49", "50", "51"] I try to insert it into my sql query to be used in a ''find_by_sql'' query = "SELECT * , #{kms} AS km FROM cities" query << " WHERE department_id IN ( #{dpt_ids} ) " but this transform my array into a unique string :

because I am a grasshopper... Now that I can sort my ''list''...is there a logical way of not repeating myself to having essentially the same list view with multiple sorts? i.e. def list_cl # ordered by clients last name @placement_pages, @placements = paginate( :placements, :include => [:client], :order_by =>

Hi, I am currently trying to move my rubyonrails app from Linux to Windows server utilizing MS SQL instead of MySQL due to "business" reason. All my listing screen utilize a drop down list in each column to allow user to "filter" the listing based upon the value chosen from the drop down list. In the controller, I used find() method but with customized parameters such as

I am building an invoicing system but cannot use the auto_increment field to determine the invoice number (because they are running 3 different companies off the one system. I need to find the last invoice number from any given company and then add 1 to it to get the next invoice number. BUT, there is a unique case on the very first invoice produced because there is no earlier invoice

Hello, I have a situation where an ''employee'' belongs to a ''department'' and have setup the relationship as follows. class Employee < ActiveRecord::Base belongs_to :department, :foregin_key => "department_id" validates_associated :department_id end class Department < ActiveRecord::Base has_many :employees def validate_on_update

Hi, I know that to make a dropdown box automatically submit when you change the value, you do this: <select ..... onchange="this.form.submit();"> BUT i''ve got an ajax form, and if i do the above trick, it simply reloads the ajax partial into the whole screen, rather than into the div where it is meant to go. I''ve already got it all working so that if you click

I''m no good at SQL and I have a question that will hopefully be fairly easy to answer. I''m using acts_as_paranoid which instead of deleting a record adds a deleted_at column with the datetime the row was deleted. I want to have a find_by_sql filter out any row where deleted_at is not null. I have (at least the relevant parts): #a couple working filters here. filters <<

I''m trying to figure out how to change the order of a list view and it''s obvious to me that I don''t understand what I get from a simple scaffold to know enough to alter it. If someone would be so kind to tell me what this means ... def list @placment_pages, @placements = paginate :placements, :per_page => 10 end @placement_pages, # I am guessing that this

Hi everyone, I''m at the end of my rope on this. I can''t get pagination to work with anything but a standard find on a model. If I try to do a search and customize the pagination, I get lots of different variations. My thought was to have the list action do what it does, but to pass it a list of search conditions from the search action. So, if search determines that we need

I have a table of employees with the fields "last_name" and "first_name". I would like to populate a collection select so that what the user sees in the drop-down is "Last Name, First Name". So far, the only way I have figured out to do this is by using "find_by_sql" in my model, like so: @employees.find_by_sql("SELECT id, concat(last_name,

I know my thinking is sloppy. I want to know how many clients currently in my facility are male... My facilities_controller.rb def list_fac @placement_pages, @placements = paginate( :placements, :conditions => ["placements.facility_id = ?", params[:facility_id] ], :include => [:facility, :client], :order_by => ''facilities.name,

Trying to use Eric''s help and Amy Hoy''s page of playing with auto_complete and decided that the script/console is the place to rapidly test. I have this feeling that CONCAT isn''t working for postgresql... c = find_by_sql(SELECT * FROM clients WHERE CONCAT (first_name,middle_initial,last_name) = "johnadams") ^ (irb):61:

I am curious partly because it has occurred randomly in my asterisk system. How does one go about creating a .call file for placing a call between two extensions/phones? I know this has been mentioned and is probably in one of the wikis somewhere, but I am unsure exactally how to go about doing it. Can anyone point me in the right direction. Dan

I am a newbie and I am running into a problem which I cant understand. I have a table called ''privileges'' which has the following fields CREATE TABLE `sdqualplanner`.`privileges` ( `id` int(10) unsigned NOT NULL auto_increment, `name` varchar(20) NOT NULL default '''', `description` varchar(100) NOT NULL default '''', `section_id`