I have 3 models, that all have use the gem - https://github.com/digitalplaywright/mongoid-slug - that creates a _slugs field from the models title field.
I have the slug for one of my articles and I need to find the issue it belongs to. I have tried a whole deal of things, but nothing seems to work.
Any advice on what the correct query is to get the issue that belongs to the article with my article slug?
Query that doesn't work:
p = Publication.find("my-publication")
p.issues.where(:'articles._slugs'.in => ["an-article-slug"]).first
Publication model:
class Publication
# 1. Include mongoid stuff
include Mongoid::Document
include Mongoid::Timestamps
include Mongoid::Slug
# 2. Define fields
field :title, type: String
field :description, type: String
field :published, type: Boolean, default: false
field :live, type: Boolean, default: false
field :show_walkthrough, type: Boolean, default: true
field :subscription_duration, type: String, default: "Subscription Duration"
field :subscription_price, type: String, default: "Price"
field :sell_issues_separately, type: String, default: "Individual Issue Sale"
field :issue_price, type: String, default: "Price"
field :previewed_on_device, type: Boolean, default: false
field :shareable, type: String, default: "Make Articles Shareable Online"
field :urban_airship_key, type: String
field :urban_airship_secret, type: String
field :urban_airship_master_secret, type: String
# 3. Set attributes accesible
attr_accessible :title, :description, :live, :published, :show_walkthrough, :subscription_duration, :subscription_price, :sell_issues_separately, :issue_price, :cover_image_attributes, :logo_image_attributes, :shareable, :urban_airship_key, :urban_airship_secret, :urban_airship_master_secret
# 4. Set slug
slug :title, reserve: ['new', 'edit', 'walkthrough', 'email', 'previewer', 'privacy', 'support', 'manifest', 'feed', 'demo', 'existence', 'switch']
# 5. Set associations
belongs_to :user
embeds_many :issues, order: :created_at.desc, cascade_callbacks: true
end
Issue model:
class Issue
# 1. Include mongoid stuff
include Mongoid::Document
include Mongoid::Timestamps
include Mongoid::Slug
# 2. Define fields
field :title, type: String
field :description, type: String
field :published, type: Boolean, default: false
field :last_push_at, type: DateTime, default: Time.now
field :published_at, type: DateTime, default: Time.now
field :no, type: Integer, default: 0
field :color, type: String
field :free, type: Boolean, default: false
# 3. Set attributes accesible
attr_accessible :title, :description, :published, :last_push_at, :published_at, :no, :color, :free, :cover_image_attributes
# 4. Set slug
slug :title, scope: :publication, reserve: ['new', 'edit', 'publish', 'update_order']
# 5. Set associations
embedded_in :publication
embeds_many :articles, :as => :articleable, :class_name => 'Article', cascade_callbacks: true, order: :no.desc
embeds_one :cover_image, :as => :imageable, :class_name => 'Image', cascade_callbacks: true, autobuild: true
end
Article model:
class Article
# 1. Include mongoid stuff
include Mongoid::Document
include Mongoid::Timestamps
include Mongoid::Slug
# 2. Define fields
field :title, type: String
field :author, type: String
field :lead, type: String
field :body, type: String
field :no, type: Integer
# 3. Set attributes accesible
attr_accessible :title, :author, :lead, :body, :no, :article_image_attributes, :article_images_attributes, :article_images_attributes
# 4. Set slug
slug :title, scope: :articleable
# 5. Set associations
embedded_in :articleable, polymorphic: true
embeds_one :article_image, :as => :imageable, :class_name => 'Image', cascade_callbacks: true, autobuild: true
embeds_many :article_images, :as => :imageable, :class_name => 'Image', cascade_callbacks: true
end
UPDATED With new queries and results
I can get the publication using the query suggestion of #mu below:
I can't get the issue using the same query though:
And here you can see the _slugs field if I take the first article in the first issue of the publication:
What am I doing wrong here? The query seems to work nicely when grabbing a publication. Why doesn't it work nicely when grabbing an issue?
Related
here's a list of model and their relation below:
class Section
has_many :students, as: :resource
searchable do
integer :id
join(:first_name, prefix: "student", target: Student, type: :text, join: {from: :resource_id, to: :id})
join(:last_name, prefix: "student", target: Student, type: :text, join: {from: :resource_id, to: :id})
end
end
class Student
belongs_to :resource, polymorphic: true, optional: false
has_many :contact_number, as: :resource
searchable do
text :first_name
text :last_name
integer :id
integer :resource_id
string :first_name
string :last_name
end
end
class ContactNumber
belongs_to :resource, polymorphic: true, optional: false
end
as you can see in my class model Section has many students. I can search student "first_name" and student "last_name" because of the help of joins. is there possible way to search student contact numbers. using of joins??? or what is the workaround to search the contact numbers in Section model?
in my ContactNumber model, i create an another joins
class ContactNumber
searchable do
string :ref_id do
if resource_type == "Student"
[resource.resource_type, resource.resource_id].join("_").downcase()
end
end
end
in my Student model
searchable do
string :ref_id do
[resource_type, resource_id].join("_").downcase()
end
join(:content, prefix: "contact_number", target: ContactNumber, type: :text, join: {from: :ref_id, to: :ref_id})
end
last in my Section class
class Section
searchable do
string :ref_id do
[self.class.name, id].join("_").downcase()
end
join(:content, prefix: "number", target: ContactPerson, type: :text, join: {from: :ref_id, to: :ref_id})
end
end
So I have these two classes
class Tweet
include Neo4j::ActiveNode
property :content, type: String
property :created_at, type: DateTime
property :updated_at, type: DateTime
has_one(:user, :tweeted).from(:User)
end
class User
include Neo4j::ActiveNode
property :username, type: String
property :name, type: String
property :email, type: String, default: ''
validates :email, :username, uniqueness: true
property :encrypted_password
has_many(:Tweet, :tweeted)
end
And everytime I run rails neo4j:migrate it gives error like this
ArgumentError: The 'type' option must be specified( even if it is nil) or origin/rel_class must be specified (Class#tweeted)
How to properly create relationship between nodes in neo4jrb?
As the error message describes, you didn't explicitly define the type of your tweeted relation. Take a look at the official documentation for further details. However, the following should work:
class Tweet
include Neo4j::ActiveNode
property :content, type: String
property :created_at, type: DateTime
property :updated_at, type: DateTime
has_one :out, :author, type: :author, model_class: :User
end
class User
include Neo4j::ActiveNode
property :username, type: String
property :name, type: String
property :email, type: String, default: ''
validates :email, :username, uniqueness: true
property :encrypted_password
has_many :in, :tweets, origin: :author
end
I have tried to use
has_many :in, :ratings, unique: true, rel_class: Rating
But that unique: true is ignored because I have a model class for the relationship.
How can I make sure that if my Users rate Articles, their rating gets updated instead of added. I'd prefer it if it produces a single query. ;-)
Article.rb:
class Article
include Neo4j::ActiveNode
property :title, type: String
property :body, type: String
property :created_at, type: DateTime
# property :created_on, type: Date
property :updated_at, type: DateTime
# property :updated_on, type: Date
has_many :in, :ratings, unique: true, rel_class: Rating
has_many :in, :comments, unique: true, type: :comment_on
has_one :in, :author, unique: true, type: :authored, model_class: User
end
User.rb:
class User
include Neo4j::ActiveNode
has_many :out, :articles, unique: true, type: :authored
has_many :out, :comments, unique: true, type: :authored
has_many :out, :ratings, unique: true, rel_class: Rating
# this is a devise model, so there are many properties coming up here.
Rating.rb
class Rating
include Neo4j::ActiveRel
property :value, type: Integer
from_class User
to_class :any
type 'rates'
property :created_at, type: DateTime
# property :created_on, type: Date
property :updated_at, type: DateTime
# property :updated_on, type: Date
end
Rating creation inside the article controller:
Rating.create(:value => params[:articleRating],
:from_node => current_user, :to_node => #article)
This has been resolved. You can ensure unique relationships while using an ActiveRel model by using the creates_unique keyword.
per https://stackoverflow.com/a/33153615
For now I found this ugly workaround..
def rate
params[:articleRating]
rel = current_user.rels(type: :rates, between: #article)
if rel.nil? or rel.first.nil?
Rating.create(:value => rating,
:from_node => current_user, :to_node => #article)
else
rel.first[:value] = rating
rel.first.save
end
render text: ''
end
EDIT: cleaner, but with two queries:
def rate
current_user.rels(type: :rates, between: #article).each{|rel| rel.destroy}
Rating.create(:value => params[:articleRating],
:from_node => current_user, :to_node => #article)
render text: ''
end
Here's my model. Working without errors on other similar models.
Not sure even how to troubleshoot this. Any help is greatly appreciated. Thanks
class OrderProduct
include Mongoid::Document
include Mongoid::Token
validates :quantity, :numericality => { :greater_than => 0 }
before_save :pre_save
after_save :post_save
token :field_name => :code, :pattern => "%C3%d7%C2"
field :quantity, type: Integer, :default => 1
field :notes, type: String
field :fit_satisfactory, type: Boolean, :default => true, overwrite: true
field :alteration_cost, type: Float, default: 0.0
field :fit_status_saved, type: Date, default: nil
field :initials, type: String
field :last_product_type_order, type: String, default: nil
auto_increment :sequence, :seed => 10000
belongs_to :order_product_status
belongs_to :product, autosave: true
belongs_to :order
belongs_to :product_fit
has_many :product_fit_entry_values, autosave: true
embeds_many :customizations, class_name: "OrderProductCustomization"
Looks like others have encountered that same problem and posted it on the rails_admin github page:
Issue 1852
Some people have replied with work arounds, feel free to try those. However, the issue is still open so rails_admin hasn't been officially patched yet.
I am testing this from rails console:
Credential.last.token => nil
Credential.last.update_attribute :token, '123' => true
Credential.last.token => nil
Here is my class:
class Credential
include Mongoid::Document
include Mongoid::Timestamps
field :_id, type: String
field :user_id, type: Integer
field :code, type: String
field :provider, type: String
field :token, type: String
end
What am I doing wrong?
If you have identity map enabled you'll need to wrap that in
Mongoid.unit_of_work { Credential.last.token }
Mongoid caches the queries. It is not a problem for web requests, but in the console you won't see the change unless you do it in the unit of work block, or restart the console (not just a reload)
I had to put
attr_accessor :token, ...