Forum: Ruby on Rails relationships quickie

Announcement (2017-05-07): www.ruby-forum.com is now read-only since I unfortunately do not have the time to support and maintain the forum any more. Please see rubyonrails.org/community and ruby-lang.org/en/community for other Rails- und Ruby-related community platforms.
428f1d76da99d9602d57b046841df29a?d=identicon&s=25 Dave Smith (railsnoob)
on 2009-01-07 12:13
i have a project.

the project has a status_id.

i have a statuses table with id's and names.

the project model includes "has_one :status"

the status model includes "has_many :projects"

in my projects index page instead of project.status_id displaying 1, 2
or 3 i want to have the statuses.name accosiated with that id.

i tied putting <%= project.status.name %> but i get the error,

SQLite3::SQLException: no such column: statuses.project_id: SELECT *
FROM "statuses" WHERE ("statuses".project_id = 6)  LIMIT 1

it appears to be looking in statuses table for project_id not the other
way around.

can anyone clear this up for me?

cheers,

dave
41cc2c53544016a86472343ab3fdc0ff?d=identicon&s=25 Simon Macneall (Guest)
on 2009-01-07 12:19
(Received via mailing list)
Yeah, that is the way that the associations work.

if a model 'has_one' of something, then the something has the foreign
key
relationship back.

It is described fairly nicely here:
http://guides.rails.info/association_basics.html

Simon


On Wed, 07 Jan 2009 20:13:41 +0900, Dave Smith
9b8d00f99fe595bdc45fd30439cf9c8f?d=identicon&s=25 Franz Strebel (Guest)
on 2009-01-07 12:20
(Received via mailing list)
On Wed, Jan 7, 2009 at 12:13 PM, Dave Smith
<rails-mailing-list@andreas-s.net> wrote:
>
> i have a project.
>
> the project has a status_id.
>
> i have a statuses table with id's and names.
>
> the project model includes "has_one :status"

try belongs_to :status
428f1d76da99d9602d57b046841df29a?d=identicon&s=25 Dave Smith (railsnoob)
on 2009-01-07 12:31
Franz Strebel wrote:
> On Wed, Jan 7, 2009 at 12:13 PM, Dave Smith
> <rails-mailing-list@andreas-s.net> wrote:
>>
>> i have a project.
>>
>> the project has a status_id.
>>
>> i have a statuses table with id's and names.
>>
>> the project model includes "has_one :status"
>
> try belongs_to :status

i understand now! cheers guys
This topic is locked and can not be replied to.