has-one Questions
5
In login model I have implement relation with picture table
function picture () {
return $this->hasOne('App\Picture');
}
Now I want data where Picture.picture_status = 1 and User.user_status...
3
Solved
I am working on a Rails application and currently I have 2 models - Subjects and Lessons.
A Subject has 3 different types of lessons - Lecture, Tutorial and Laboratory. I modelled such that there a...
Digitigrade asked 19/1, 2013 at 13:36
4
Solved
I have a simple problem, related to associations.
I have a model for book, that has_one reservation.
Reservation belongs_to book.
I want to make sure in the create method of reservations controlle...
Smart asked 30/12, 2013 at 22:32
2
Solved
Ok, i have model A that is linked to many model B, so model A have a hasMany relationship to model B and model B has a belongsTo relationship to model A.
But, amongst all those B there is a partic...
Lawabiding asked 5/9, 2019 at 13:48
4
I have Accounts and AccountAddressess. An account can have many AccountAddressess and I would like to specify one as the "default_account_address", so in the Account table, I have a column named "d...
Circassia asked 6/4, 2011 at 18:37
3
Hey I have a model foo that has_one :bar. And bar belongs_to :foo. I was wondering if there is a way to augment the has_one such that no two bars can belong to the same foo. I looked at the documen...
Fornax asked 7/6, 2011 at 16:48
4
Solved
I'm still quite new to Rails so hopefully this isn't a silly question.
I have two models: User and Chore. User has_one chore, and Chore belongs to User
class User < ActiveRecord::Base
attr_ac...
Prolusion asked 5/11, 2012 at 1:56
2
For example, in
class Student < ActiveRecord::Base
has_many :awards
end
class Awards < ActiveRecord::Base
belongs_to :student
end
the above should be the correct usage, but what if we u...
Demur asked 15/9, 2010 at 2:45
2
Assuming
class Kid < ActiveRecord::Base
has_one :friend
end
class Friend< ActiveRecord::Base
belongs_to :kid
end
How can I change this to
class Kid < ActiveRecord::Base
has_many :f...
Ushijima asked 13/8, 2014 at 4:7
2
Solved
I'm trying to update nested question_output attributes in a 'question' model. A question has_one question_output. If there are no existing question_outputs in the database, everything works fine. B...
Bregenz asked 16/1, 2013 at 3:28
3
Solved
So I have a two models like this
class ModelParent
include Mongoid::Document
field :name, :type => String
has_one :model_child
end
class ModelChild
include Mongoid::Document
field :name, ...
Womble asked 8/4, 2012 at 22:39
4
Solved
Let's say I have a grails domain class that looks like
class Person {
Address address
}
I could also declare it as
class Person {
static hasOne = [address:Address]
}
The second way would mo...
Spooner asked 15/10, 2012 at 16:46
1
I am writing a Ruby on Rails application that has two models - User and Farm. A User is considered a farmer if their farmer field is set to true. However, there is no seperate class for farmers.
...
Avie asked 13/11, 2012 at 21:43
2
Solved
I want to override/extend a Rails has_one association method so that it always returns an instance of the associated class. (If none already exists in the database, I want to create a new one and a...
Technique asked 24/10, 2012 at 17:58
1
Wondering if there is an easy way to determine dynamically if a model's association is a "has_one" or "has_many" relationship (i.e. is this an association to one object or many).
I'm using MongoMa...
Iglesias asked 6/7, 2013 at 5:14
3
Solved
I want to have a Status model which will be relatively static after some user-defined set up (and different users may have different values on status).
The status can apply to different models, su...
Bethel asked 9/7, 2010 at 23:5
2
Solved
RailsGuides says:
http://guides.rubyonrails.org/association_basics.html
A has_many "association indicates that each instance of the model has zero or more instances of another model."
"A has_one ...
Slosh asked 25/9, 2013 at 12:44
2
Solved
I have an application where my users can have a set of preferences. Both are stored as ActiveRecord-models as follows:
class User < AR::Base
has_one :preference_set
end
class PreferenceSet &l...
Desorb asked 28/9, 2010 at 12:29
4
Solved
I have an application with a users table and a user_profiles table. A user has_one user profile and a user profile belongs_to a user.
I want to make sure that the association scenario is always tr...
Ply asked 2/11, 2012 at 21:16
1
Solved
I have a few models I'm trying to relate.
One model is Item, one is Slide, and another is Asset.
Items have multiple slides beneath them. Assets are basically files that have been uploaded (image...
Baur asked 23/11, 2011 at 21:56
2
Solved
I have a user model.
Users can have 1 of 3 roles: role1, role2, role3. This is represented by a 'role' column in the user model.
Each role has a unique profile. role1_profile, role2_profile, role3_...
Ridgeling asked 11/10, 2011 at 22:33
2
Solved
I have two classes:
class User < ActiveRecord::Base
:has_one :foo
end
class Foo < ActiveRecord::Base
:belongs_to :user
end
The Foo is optional.
I created the following routing:
resou...
Scalene asked 27/7, 2010 at 17:16
3
Solved
In this example, I create a user with no profile, then later on create a profile for that user. I tried using build with a has_one association but that blew up. The only way I see this working is u...
Whittling asked 18/3, 2010 at 20:1
1
Solved
I have a model in my Rails app that uses the :class_name attribute for has_one:
class Foo < ActiveRecord:Base
has_one :main_bar, :class_name => "Bar"
# ...
end
I'm a bit unsure what to ...
Hairsplitting asked 30/1, 2010 at 6:36
3
Solved
I am trying to understand has_one relationship in RoR.
Let's say I have two models - Person and Cell:
class Person < ActiveRecord::Base
has_one :cell
end
class Cell < ActiveRecord::...
Stilbestrol asked 14/5, 2009 at 1:16
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