logo
down
shadow

Mongoid: Change(rename) foreign_key name without loosing data


Mongoid: Change(rename) foreign_key name without loosing data

By : ryo
Date : November 22 2020, 09:00 AM
will help you You can interface directly with MongoDB to rename the field.
So fire up your Mongo shell and run this:
code :
db.cars.update({}, {$rename:{"random_key_id":"owner_id"}}, false, true);


Share : facebook icon twitter icon
How to save Mongoid foreign_key as integer or keep the parent model have Integer id

How to save Mongoid foreign_key as integer or keep the parent model have Integer id


By : Niko Nekras
Date : March 29 2020, 07:55 AM
wish help you to fix your issue Surely, if you use Mongoid, the right way is to use BSON objects as ids. But if you absolutely need to use integers as city ids, you can simulate belongs_to with code like this
code :
class Profile
  def city
    City.where(:id => self.city_id).last
  end

  def city=(new_city)
    self.city_id = new_city.id
  end
end
Rename foreign_key to override in Rails Convention

Rename foreign_key to override in Rails Convention


By : skorpionet
Date : March 29 2020, 07:55 AM
Hope this helps I suppose you are trying to apply polymorphic association. Try this out.
code :
class Post < ActiveRecord::Base
has_one :action, :as => :target
end

class Action < ActiveRecord::Base
belongs_to :target, :polymorphic => true
end
Mongoid: Relations always gives foreign_key value of nil

Mongoid: Relations always gives foreign_key value of nil


By : Jnana Sowmya
Date : March 29 2020, 07:55 AM
wish of those help In your character model it should be belongs_to :cduser, :class_name => "User" instead of only this belongs_to :cduser, as rails is not able to identify for which class it belongs due to its naming convention.
How to rename database in MySQL without loosing data?

How to rename database in MySQL without loosing data?


By : Caribos Gianarwtas
Date : March 29 2020, 07:55 AM
this will help I am trying to rename my database by the following query: , Use these few simple commands
code :
mysqldump -u username -p -v olddatabase > olddbdump.sql
mysqladmin -u username -p create newdatabase
mysql -u username -p newdatabase < olddbdump.sql
RENAME TABLE old_db.table TO new_db.table;
has_and_belongs_to_many and foreign_key does not work in Rails Admin + MongoID

has_and_belongs_to_many and foreign_key does not work in Rails Admin + MongoID


By : Luca Borio
Date : March 29 2020, 07:55 AM
this one helps. I am using Rails 5, Rails Admin and MongoId, In my model, I added , I solved my issue by add an alias field to the model:
code :
field :topicIds, type: Array, :as => :topic_ids
Related Posts Related Posts :
  • How do I assign a method to a variable?
  • Rails runs a different application to current path
  • rails form for model select box with 1-dimensional data
  • ActiveModel::MissingAttributeError in Rails4 Controller #create
  • Rails + Devise - Sending email to email + username in array
  • Paperclip, getting "undefined method error" :photo
  • How to completely delete a DB on Ruby on Rails?
  • Active Model Serializer - How do I include an attribute conditionally? Rails
  • Rails Fake-S3 on CircleCI Connection refused
  • Insert a variable for a label in Rails
  • Filter chain halted as :require_no_authentication rendered or redirected
  • Public Activity - Creating activities based on certain attribute changes
  • Turn off email sends from Devise in test (Rspec)
  • Attributes method explanation
  • Rails 4 Bootstrap DatePicker class today not working
  • Setting up controller and its actions for Admin login only, not for a Users?
  • How do I map an association through a model's parents if it can only belong to one of them?
  • How to use the HAML t() helper in RoR
  • How do I output a json dates array with RABL
  • Why does this FTP block read operation throw EOFError?
  • prawn rails download on open
  • Rails 4 deeply nested content tags and strings
  • Sending mail with Rails 4 in development environment
  • Mapping `has_many` in active admin
  • Rails - Use nested form to create new records
  • How to integrate elasticsearch with rails application specifically using "Elasticsearch" gem
  • Querying double has_many :through association
  • how to give whitespace in ruby slim
  • Mongoid, get distance from models in kilometers
  • can I get a data from file only one time in my gem similar to config/initializers in rails?
  • Calling a method from another controller in rails
  • Video content type is invalid in paperclip-ffmpeg
  • Website Speed With Heroku
  • adding Belongs to without "nil" in rails
  • Cloudfront returning 401 in response to requests
  • Should you use belongs_to if belonging to the object is optional?
  • Ordering a rails model with string outline notation
  • Ruby - Merge two arrays and remove values that have duplicate
  • Rails 4 - Using PUT instead of PATCH for updates
  • Rails last day of last week bug?
  • Mongodb querying for aggregation with count of multiple values
  • Bundler throws an error while creating rails new APP
  • Rails 4 - Devise: getting ActionController::UnknownFormat on signup
  • activeadmin: link_to in a helper does not appear in view
  • Virtual model attribute which links to a record from associated model
  • Travis CI cant resolve association in rails
  • How to add a custom route, controller, and action in Ruby on Rails?
  • Rails 4 session is not updated between requests
  • Input number multiplies as a string instead of number - Rails 4
  • Get enqueued_at inside scheduled Sidekiq job?
  • Update args of a scheduled job
  • Ruby on Rails, SQL Server order by and comparison
  • Devise Model unable to Work
  • Switching Heroku app to server in other region
  • Controller action for link shortening
  • Finding objects that are not associated in has_many_through
  • Ruby on Rails, SQL Server Query
  • Issues with Createing a form update button from a controller method in Rails 4
  • `<module:Rails>': superclass mismatch for class Server (TypeError)
  • Do I need a model to insert through IRB?
  • shadow
    Privacy Policy - Terms - Contact Us © animezone.co