has-many Questions
5
Solved
I have three models:
class Coupon < ActiveRecord::Base
belongs_to :event
has_many :coupon_events, :dependent => :destroy
has_many :events, :through => :coupon_events
end
class Event ...
Presbytery asked 5/12, 2012 at 7:7
3
Here is an example:
Let says I have a Student object which has a has_many relationship with ReportCard objects. ReportCard objects have a boolean field called "graded" that flags they have been gr...
Anglonorman asked 10/1, 2016 at 1:37
6
I have a Game model which has_many :texts. The problem is that I have to order the texts differently depending on which game they belong to (yes, ugly, but it's legacy data). I created a Text.in_ga...
Dieppe asked 14/8, 2012 at 9:57
2
I get the benefits of using eager loading to avoid N+1 when fetching an array of objects with their associated records, but is it important to use eager loading when fetching a single record?
In m...
Nalley asked 16/12, 2015 at 17:26
1
I'm new on laravel. Why I'm always get error:
array_map(): Argument #2 should be an array ?
whereas I'm assigning parameter array on this method?
this is my example code :
$products = Catego...
4
I just ran into an interesting situation about relationships and databases. I am writing a ruby app and for my database I am using postgresql. I have a parent object "user" and a related object "th...
Dunne asked 21/10, 2015 at 22:20
2
Solved
I'm trying to customise a ActiveAdmin form for a Recipe model that has a has_many relationship with Step.
class Recipe < ActiveRecord::Base
has_many :steps
end
class Step < ActiveRecord::B...
Steele asked 26/8, 2011 at 14:52
1
Solved
I try to create a polymorphic association, what is common in Rails but unfortunately not in Yii2. As part of the implementation I need to define the relation:
public function getImages()
{
retu...
Vocative asked 28/5, 2015 at 10:3
2
I use paper_trail in rails to track my models versions. But the documentation on the github repo indicates that the gem doesn't support has_many, belongs_to associations.
Let's say I've an app tha...
Noll asked 1/4, 2012 at 1:4
2
I am using Ember.js with local-storage-adapter. I have a weird problem while updating records.
I have a post and comments model with hasMany relationships:
App.Post = DS.Model.extend({
title: D...
Disheveled asked 26/10, 2013 at 7:40
4
Solved
I am new to Ruby on Rails. I have a problem- how to get only latest records from has many relationship in model. My code is like this:
class User < ActiveRecord::Base
has_many :books
end
cla...
Malicious asked 28/3, 2015 at 19:57
3
Solved
Users can add tags to a snippet:
class Snippet < ActiveRecord::Base
# Relationships
has_many :taggings
has_many :tags, :through => :taggings
belongs_to :closing_reason
end
I want to ...
Kerby asked 29/1, 2011 at 12:34
2
Solved
I've got the following models associated with sequelize.
Event hasMany Characters through characters_attending_boss
Boss hasMany Characters through characters_attending_boss
Characters hasMany Eve...
Contributory asked 14/10, 2014 at 14:10
3
Solved
In rails 3, i know that i can force deletion of dependent objects on belongs_to and has_many relations using the :dependent => :delete option. However i was wondering,
what is the default behavio...
Crumhorn asked 26/6, 2011 at 17:28
3
Solved
I have 3 tables - users, things, and follows. Users can follow things through the follows table, associating a user_id with a things_id. This would mean:
class User
has_many :things, :through =&g...
Henke asked 16/1, 2012 at 0:42
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
What is the ember-cli best practice to deleteRecord() on a model that belongsTo multiple models? Do I have to manually clean up relationships on the parents?
Migrating from ember to ember-cli I am...
Gallous asked 9/7, 2014 at 3:24
2
Solved
Im trying to create a computed property to get me the sum of the length of all pages.
But i cannot figure out how to access a child so i can get the childs of that child.
App.Document = DS.Model...
1
Solved
I have two models for Show and Performance (show as in a play or comedy show). They are associated like this in the models:
class Show < ActiveRecord::Base
has_many :performances, :dependent =...
Why asked 5/6, 2014 at 20:41
2
I am trying to save objects having Many-Many Relationship . A SellingCompany can have many Accounts and an Account can be associated with many SellingCompanies. So there is a many-many relationship...
2
Solved
I have Questions table which have store so many question. Question related to question_topics so have create has many relationship with question. Now it's look like this:
$this->Question->bi...
1
Solved
I'm looking to DRY up my test suite. Trying to create a trait that represents specific values of a has_many relationship on the parent factory. Ideally these values would be created from a separate...
Misreport asked 25/3, 2014 at 2:5
2
Solved
We have an old application where the relationship is defined as below:
class Practice {
String name
static hasmany = [doctors:Doctor]
}
and
class Doctor {
String name
}
There is not a belo...
Eyra asked 20/3, 2012 at 16:9
1
Solved
I have problems with has_many / has_many relationship using nested form for the following case.
I have articles and this can have many units (Kg, bags, etc). And through my form I need to record t...
Masthead asked 7/3, 2014 at 4:41
3
I have something like the following:
class Project < ActiveRecord::Base
has_many :project_people
has_many :people, :through => :project_people
end
class Person < ActiveRecord::Base
ha...
Renwick asked 14/7, 2011 at 14:38
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