DataMapper and Codeigniter - how to fully manage a many-to-many relationship

Posted by user252160 on Stack Overflow See other posts from Stack Overflow or by user252160
Published on 2010-02-18T09:48:18Z Indexed on 2010/03/28 2:53 UTC
Read the original article Hit count: 705

Filed under:

codeigniter

|

datamapper

|

model

|

php

|

table

I have the following relationship

CType has many Field Field has many Ctype

and of course the tables used are fields, ctypes, and ctypes_fields. Normally, the ctypes_fields table should contain only ids referencing the other two tables. However, i'd like to put there a "options" field that will contain some content for the concrete instance only. I walked through all DataMapper tuts but I could'n find relevant info on how I could extract these specific values (the ones in the relation table)

Should I create a separate model for this relation table or there is a clever way to do this ?

© Stack Overflow or respective owner

Related posts about codeigniter

CodeIgniter's index.php

as seen on Server Fault - Search for 'Server Fault'
Hi, Following CodeIngiter's installation instructions, I extracted CodeIgniter into XAMPP's htdocs folder and placed its index.php at the root. When I navigated to the following url h t t p://127.0.0.1/index.php I got the following error messages: Warning: require_once(C:\xampp\htdocs/system/codeigniter/CodeIgniter… >>> More
How to test controllers with CodeIgniter PART 2?

as seen on Stack Overflow - Search for 'Stack Overflow'
I am having difficulties testing Controllers in Codeigniter: I use Toast but when I invoke my Home Controller class I get an exception that "db" is not defined. Has anybody an idea how to test this 1-1? Thanks class Home_tests extends Toast { function __construct() { parent::__construct(__FILE__); //… >>> More
How can I pad an image with CodeIgniter?

as seen on Stack Overflow - Search for 'Stack Overflow'
My user is uploading an image of any size XX x YY. I want to find the larger dimension and shrink the image to a square of 250x250 with transparent padding being added to make up the difference. Is there any way to accomplish this with CI's Image Lib? >>> More
On learning CodeIgniter

as seen on Stack Overflow - Search for 'Stack Overflow'
I made a PHP-function which returns an array and then I move its value to a variable $a. How can I output it to a web page on CodeIgniter? >>> More
Getting Uploadify to work with Codeigniter ?

as seen on Stack Overflow - Search for 'Stack Overflow'
Has anyone been able to get uploadify to work with codeigniter? Everything I try it will not upload. >>> More

Related posts about datamapper

DataMapper Dates

as seen on Stack Overflow - Search for 'Stack Overflow'
Forgive me if this is a simple answer. But how do you get a Date from a DataMapper property. For example: require 'rubygems' require 'sinatra' require 'datamapper' class Test include DataMapper::Resource property :id, Serial property :created_at, Date end get '/:id' do test =… >>> More
DataMapper and Codeigniter - how to fully manage a many-to-many relationship

as seen on Stack Overflow - Search for 'Stack Overflow'
I have the following relationship CType has many Field Field has many Ctype and of course the tables used are fields, ctypes, and ctypes_fields. Normally, the ctypes_fields table should contain only ids referencing the other two tables. However, i'd like to put there a "options" field that will… >>> More
CodeIgniter & Datamapper as frontend, Django Admin as backend, database tables inconsistent

as seen on Stack Overflow - Search for 'Stack Overflow'
I created a database for a site i'm doing using Django as the admin backend. However because the server where the site is hosted on, won't be able to support Python, I find myself needing to do the front end in PHP and as such i've decided to use CodeIgniter along with Datamapper to map the models/relationship… >>> More
datamapper secondary key

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello, I am using datamapper in a ruby application and I'm facing a problem I do not understand. I have a Appartment model and a Location model. An appartment is at a given location and several appartments can be at the same location. This typically described a 1-n relationship (I guess :-) ) My… >>> More
Datamapper has n relationship with multiple keys

as seen on Stack Overflow - Search for 'Stack Overflow'
I am working on a simple relationship with DataMapper, a ruby webapp to track games. A game belongs_to 4 players, and each player can have many games. When I call player.games.size, I seem to be getting back a result of 0, for players that I know have games associated with them. I am currently able… >>> More