Ancestry is a gem/plugin that allows the records of a Ruby on Rails ActiveRecord model to be organised as a tree structure
Questions tagged [ancestry]
194 questions
2
votes
2 answers
Dynamic Select with ancestry
My application using ancestry gem.
class Location < ActiveRecord::Base
has_ancestry :cache_depth => true
has_many :posts
end
class User < ActiveRecord::Base
belongs_to :location
end
I created some random Location,
Alaska
California
Los…
Mary Smith
- 121
- 2
- 10
2
votes
1 answer
using ActiveModelSerializers and having children rendered with specific Seriazlier
I have the following relationships (using RoR 3.2.13 and ancestry 2.0.0) and REALLY need some help in configuring how the serializer renders with the MenuHeaderSerializer:
class Menu < ActiveRecord::Base
has_many :menu_headers
end
class…
timpone
- 19,235
- 36
- 121
- 211
2
votes
1 answer
Rails validate uniqueness on level
I have ancestry tree in my app.
I want to implement uniqueness for records only on the same level.
let me explain
Records:
#,
#,
#
Mykhailo Rybak
- 163
- 1
- 2
- 9
2
votes
1 answer
'method_missing': undefined local variable or method 'has_ancestry'
I am following this tutorial (http://www.tweetegy.com/2013/04/create-nested-comments-in-rails-using-ancestry-gem/) on how to setup the Ancestry gem for nested comments. When I run through the tutorial on a normal rails app it works fine. My issue…
nykon333
- 23
- 3
2
votes
2 answers
FactoryGirl + Ancestry with two level deep
Basically:
I have a Structure model that has many Subjects.
Each subject has a parent and it can be 2-levels deep.
A Structure has to have one Subject at_depth 0 and one Subject at_depth 2.
The problem:
I can't figure out how to build my…
Nima Izadi
- 996
- 6
- 18
2
votes
1 answer
Ember.js model to be organised as a tree structure
I am learning Ember.js, using a Rails backend. I'm looking to set up a tree structure for relating a Group model to itself (Sub-Groups). Since it's pretty mature, I'd like to link up the Ancestry gem for consumption on the Ember side.
Ancestry adds…
neon
- 2,811
- 6
- 30
- 44
2
votes
1 answer
How can I find the ultimate ancestor of an ActiveRecord entry where parent_id is optional?
I have a Rails 3.2 application where Product is a model. Product contains attributes identifier, which is never null, and parent_identifier, which may be null. The relationships, when they exist, can be chained through many generations.
My challenge…
RubyRedGrapefruit
- 12,066
- 16
- 92
- 193
2
votes
1 answer
Order sub-tree navigation using ancestry gem
I'm following the rails cast Tree Based Navigation.
I want to order the sub-tree alphabetically.
In my PagesController I have
@page_for_nav = Admin::Page.find_by_permalink!(params[:id])
which gets called by
<%= render 'layouts/sub_navigation',…
Taylor Williams
- 256
- 4
- 22
2
votes
1 answer
Rendering rails partials in helper methods
I'm a rails beginner and I'm having a bit of trouble understanding how the render method works.
I'm following along with this railscasts, which has to do with the ancestry plugin for rails.
The part I'm having trouble understanding is the…
android_student
- 1,246
- 1
- 13
- 32
2
votes
2 answers
How to render nested ul list for ancestry tree view
I want to render a structure shown below using content_tag where the collection is the ancestry object.
Achaius
- 5,904
- 21
- 65
- 122
2
votes
2 answers
Rails 3: Modeling groups and members as a hierarchy
A Group instance can contain Person instances or other Group instances. I want to use the Ancestry gem to mirror a hierarchy, but Ancestry does not seem to work with two different models. I don't want to use Single Table Inheritance on Person and…
RailinginDFW
- 1,523
- 12
- 19
2
votes
2 answers
Ancestry - how to get all parent without children?
I am doing it this way:
@disabled_options = []
Category.where('ancestry is NULL').each do |cat|
@disabled_options << cat.id if cat.has_children?
end
Is there any more elegant way to get all parent without children?
user984621
- 46,344
- 73
- 224
- 412
1
vote
2 answers
Rails 'grouped_options_for_select' edit not working
My model
Class Person
belongs_to :job, class: "Job"
end
Class Job
has_ancestry orphan_strategy: :adopt
end
in my view
= form.select(:job_id, Job.all.map { |job| [job.name.titleize, job.id] }, {prompt: 'Job'}, {:class =>…
wiwit
- 73
- 1
- 7
- 26
1
vote
0 answers
Rails Ancestry can't get capital
I am using ancestry gem in rails 6 on my Location model. On the model, I have a location_type enum.
class Location < ApplicationRecord
enum location_type: ["continent", "country", "state", "state_capital", "country_and_state_capital", "city"…
Joe Bloggos
- 889
- 7
- 24
1
vote
1 answer
Is something wrong with my ggplot2 or R code to plot an ordered ancestry stacked barplot?
I want to create an organized stacked barplot where bars with similar proportions appear together. I have a data frame of 10,000 individuals and each individual comes from three populations. Here is my data.
library(MCMCpack)
library(ggplot2)
n =…
mdy
- 43
- 5