Displaying 20 results from an estimated 5000 matches similar to: "Question on polymorphic association"
2013 Mar 30
1
How to use group in nested associations
The below query fails:
Timesheet.joins(:time_entries).select("timesheets.*,
sum(time_entries.worktime) as total").group("timesheets.start_date")
The models have the following relations:
Timesheet < AR
has_many :activities, dependent: :destroy, inverse_of: :timesheet
has_many :time_entries, through: :activities
accepts_nested_attributes_for :activities,
2011 Feb 24
1
Rails 3 save parent model and association if nested attributes validation fails for uniqueness
Hi,
Song
has_and_belongs_to_many :people
accepts_nested_attributes_for :people
Person
validates :uniqueness => true
If person record not present, nested attributes working great! in rails way.
i.e., inserting into songs, people and people_songs table correctly.
I am interested in:-
*If there is person exist, it should skip insertion into people table but
data should be inserted in songs and
2009 Jun 24
1
accepts_nested_attributes_for :reject_if issue
I have the following models:
class Order < ActiveRecord::Base
belongs_to :billing_address
belongs_to :shipping_address
accepts_nested_attributes_for :billing_address
accepts_nested_attributes_for :shipping_address, :reject_if => proc {
|attributes| attributes[''has_shipping_address''] != ''1'' }
def after_initialize
self.build_billing_address
2012 Aug 13
10
Question about PATCH method, accepts_nested_attributes_for, and updates to association lists (has_many, HABTM)
Am interested in the new PATCH method that will be included in Rails 4, but
have a question/concern, and forgive me if I''m misunderstanding it.
So, if the request parameter _method is set to "patch", the update is
processed as a patch.
But, let''s say you have a model called Airplane and Airplane has a
collection of FlightCrewMembers which it
2013 Jul 21
4
how to use activemodel collection.build for a has_many :through association
Hi all,
In my controller I am doing the following to populate a nested form for a
has_many through association:
def new
@specification = Specification.new
Component.find_each.each do |component|
@specification.component_specifications.build(:component_id =>
component.id)
end
The idea being whenever someone creates or edits a form, it will be
populated with all
2011 Jul 11
2
Pre-populating association
Hello,
I think this is an easy one for the average Rails developer but I''m a bit stuck.
I''m creating a simple voting app: any user can create a survey, with any number of questions, and other users can then vote by creating a ballot for that survey.
Here''s the modeling:
class Survey < ActiveRecord::Base
has_many :questions
has_many :eligibilities
has_many
2009 Nov 01
1
please help - complicated polymorphic association
I am trying to build a shared-appointment system, where users can
subscribe to appointments and be updated whenever changes are made to
them. I have three objects in this system, appointments, users, and
subscribers. Subscribers are a polymorphic object like so:
class Subscriber < ActiveRecord::Base
belongs_to :user
belongs_to :subscribable, :polymorphic => true
end
The tricky part is
2013 Mar 25
1
validates presence of foreign key fails in nested form
I''m using accepts_nested_attributes as follows:
class Timesheet < ActiveRecord::Base
attr_accessible :status, :user_id, :start_date, :end_date,
:activities_attributes
has_many :activities, dependent: :destroy
has_many :time_entries, through: :activities
accepts_nested_attributes_for :activities, allow_destroy: true
end
class Activity < ActiveRecord::Base
attr_accessible
2010 Mar 01
0
undefined method for Polymorphic association using Searchlogic
I am unable to call a polymorphic scope using the searchlogic plugin
as it keeps on returning ''undefined method''. I am certain it is only a
problem within my project as I created a test project and I was able
to call a polymorphic scope using the searchlogic plugin.
I am hoping someone can provide a suggestion on how to debug this
issue.
My project consists of several gems, and
2006 May 21
3
acts_as_list scope and polymorphic association.
this is my model:
class Person < ActiveRecord::Base
has_many :phones, :as => :callable, :order => :position
end
class Phone < ActiveRecord::Base
belongs_to :callable, :polymorphic => true
acts_as_list :scope => :callable_id
end
how can i add the callable_type to the scope.
how can i say the scope is the {:callable_id,:callable_type} couple?
is it even possible?
thanks
2006 May 05
2
Dumb polymorphic association question
Hi,
Why is it that polymorphic associations only work with the :has_many
and :belongs_to relationships? Why can''t it be a :has_one?
Matt
2011 Jan 11
0
[PATCH] Polymorphic belongs_to association with :conditions issues
Hey all,
Could use a few eyes on a couple of very simple patches at https://rails.lighthouseapp.com/projects/8994/tickets/6262 if any has some time.
The issue (from the ticket description):
If you define a polymorphic belongs_to association and it has conditions on it, those conditions cause a NameError when you try to access the target object, of the style saying "hey, there''s no
2010 Apr 10
1
accepts_nested_attributes + polymorphic association
im having an issue where my my polymorphic associations arent being
deleted when using accepts nested attributes
there are other accepts_nested_attributes being used and they are
deleting fine, just the polymorphic association
before i go down the path of intense thrashing at this...is this a known
issue or problem?
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2006 Jul 26
3
Polymorphic Association with Single Table Inheritance?
Hello,
is it possible to setup a model/table schema like this:
Groupable --> Membership <-- Group
^ ^
| |
User UserGroup
I tried the following but failed:
Groupable (table with ''type'' column)
has_many :memberships, :as => :groupable
has_many :groups, :through => :memberships
2006 Apr 17
0
polymorphic association with single model as target
Hi,
I''m new to rails/ruby and not a sw programmer in the first place.
I''d like to use polymorphic associations to create tags/marks into
several dictionary tables (i.e japanese to english and japanese to
french) that share the same model. In that model I introduced a :target
field to select the database in a find query, i.e:
def self.find(*args)
for i in args
if
2008 Jun 24
1
Get model from polymorphic association
Hi,
If using a polymorphic belongs_to, is it possible to access the "_type"
field that contains the name of the model ?
Thanks!
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2011 Jul 08
0
Looking for Help/Advice on StackOverflow Question - Polymorphic Association with STI
I am having trouble with an many to many polymorphic association with
STI involved. The problem is described clearly in the following
StackOverflow question, so I will leave this thread short:
http://stackoverflow.com/questions/6582074/activerecord-has-many-through-polymorphic-associations-with-sti
I am posting here hoping to get advice/direction/a solution for this,
as I''ve so far been
2011 Sep 04
1
polymorphic association
Hello,
I have a scenario where I want to save a author image and book image to
assets table...
I am using a polymorphic association.
And author_name is inside the books table.
now when I save the image the imageable_type says "Book" for both. And
off-course it''s a correct behavior, but I am just trying to figure out is
there any way where I can save author image and
2006 Jul 31
0
Polymorphic has_many association through a belongs_to
Hi,
Let''s say I''ve the following Models and their relative associations:
Seat
----
belongs_to :booking
Booking
-------
has_many :seats
has_many :debits, :as => :chargeable
Debits
------
belongs_to :chargeable, :polymorphic => true
Why
>> seat.booking.debits
nil
while
>> Booking.find(seat.booking_id).debits
[]
?
Thanks.
Cheers,
Marco
2006 Mar 26
0
Eager loading and polymorphic association
Hi all,
Is it possible to do "eager loading" with polymorphic associations ?
Ex : I have a Page model that acts as taggable. When I do
Page.find(:all), I would like to retrieve all tags associated with a
page.
Thanks,
Thomas.
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