Displaying 7 results from an estimated 7 matches for "folder_id".
2006 May 18
3
access to an ApplicationController property from a view
Hi there,
How is it possible to get access to an ApplicationController property
from a view?
Consider this (simplified) situation:
class ApplicationController < ActionController::Base
def folder_id
@folder_id = params[:id]
return @folder_id
end
end
class FolderController < ApplicationController
def show
@folder = Folder.find_by_id(folder_id)
end
end
So far, so good, BUT... when trying to access folder_id in the show-view
like this <%= folder_id %>, I get an...
2008 Apr 18
3
Relating to records in same table
I''m in progress of making a little folder system with Ruby on Rails.
I''ve got a "folders" table. Each "folder" has got an id and a folder_id.
The folder_id is supposed to represent the folders'' parent folder.
How can I tell Rails?
I would like Rails to automaticly delete all subfolders of a folder when
I delete the folder it self.
Any ideas?
--
Posted via http://www.ruby-forum.com/.
--~--~---------~--~----~------------~---...
2006 Jan 11
3
Just update 1 field
Hi All,
I wonder how I can get rails to update just one field when I do Myfile.save.
Right now this happens when I do a Myfile.save:
UPDATE myfiles SET `folder_id` = 0, `filesize` = 1, `data` =
''2f7573722f6c6f63616c2f6d ... f7061636b65743d33324d'', `user_id` = 0,
`date_modified` = ''2006-01-11T23:33:57+0100'', `filename` =
''mysqlscripts.sql'' WHERE id = 4
but when just the filename has changed I''...
2006 Aug 17
1
How to sort child table on fields in the associated parent
For an Xray file system patients have folders and folders have studies.
That is:
patients folders studies
id id id
name patient_id folder_id
... label type
... ...
The list of studies with their associated folder and patient might look
like this:
name folder_label study_type
Brown,Sam brsa1 CXR
Jones,Gary jg99999 CXR
Jones,Gary joga15...
2005 Oct 23
12
Showing a neat error message
Hi All,
I''m trying to prevent users from deleting a folder that has contents
like this:
class Folder < ActiveRecord::Base
has_many :myfiles
has_many :folders
belongs_to :folder
validates_uniqueness_of :name, :scope => "folder_id"
before_destroy :dont_destroy_folder_with_contents
def dont_destroy_folder_with_contents
if Folder.find(id) != nil || Myfile.find(id) != nil
raise "Cannot delete this folder because it has contents"
end
end
end
This works fine: the folder''s not deleted....
2006 Mar 10
1
Validate fields and display errors from two models?
Hi,
I have here a problem I''ve been working at for a little while but I
can''t seem to get the error messages to appear correctly.
My form looks something like this for "ModelA":
[errors_for "modelA"]
[form for "modelA"]
[text "modelA" "fieldname1"]
[text "modelB" "fieldname2"]
[submit]
[/form]
The reason
2006 Mar 13
6
:dependent => :destroy
...g I don''t understand about :dependent => :destroy. I
hope someone can help me. Consider this code:
class Folder < ActiveRecord::Base
has_many :myfiles
has_many :folders
has_many :group_folders, :dependent => :destroy
validates_uniqueness_of :name, :scope => "folder_id"
validates_presence_of :name
before_destroy :dont_destroy_folder_with_contents
# Folders containing files or sub-folders
# can not be deleted
def dont_destroy_folder_with_contents
if self.folders.length > 0 or self.myfiles.length > 0
raise "Can''t...