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Rails 4.0 with MongoDB and Mongoid Discussion

Chris Oliver asked in General
Greg Donald ·

> rake
rake aborted!
Don't know how to build task 'default'

(See full trace by running task with --trace)

Brett Dudo ·

Yo. The ActiveRecord issue is a bit easier than you have described. When you create your app, just add the -O switch, and it will skip all AR.

rails new myapp -O

Alex Emelyanov ·

I followed this tutorial on Rails 4.02 with latest Mongoid from Git. In my case it's also required to add this line in initializers code:
Mongoid.load!("path/to/your/mongoid.yml")

Luke Meyer ·

Maybe it's just me, but there doesn't seem to be a date on this post. Seems like it might be relevant, given the obviously time-sensitive nature of edge development.

It was posted about 3 months ago. I haven't kept up on Mongoid's development, but it looks like they've been working closer to 4.0.0: https://rubygems.org/gems/m...

Looks like it's pretty questionable as to eventual compatibility with Rails 4 (https://github.com/mongoid/... so these instructions should still be pretty up-to-date.

Luke Meyer ·

Yeah, I'm trying it out.

Why not just timestamp posts?

Just redesigned the blog, forgot to add it in. :)

Ярослав Ничка ·

Very useful, thanx!

Subodh Choure ·

In my case, I changed in gemfile "gem 'mongoid', '~> 4', github: 'mongoid/mongoid'" to "gem 'mongoid', github: 'mongoid/mongoid'" and then run bundle install. This worked for me

Sushant Prusty ·

I have two collections in mongo. Can I use mongoid to join them based on their common field. Can I get some tutorial.

One Quick Question

Your Article looks intresting,...

Can you post some Usecases regarding, When one should use Mongodb with rails?

Besause I think with rails if your using Mongodb,

Rails makes it relational in many places using relations between models.

Its hard to write code with zero relations

That's up to you to make sure you've got a project that's worth using with it. There are lots of good articles on it that you can check out:

http://java.dzone.com/artic...
http://docs.mongodb.org/eco...
http://www.sarahmei.com/blo...

Hemant Gupta ·

Good Post, But gem 'mongoid', git: 'https://github.com/mongoid/... is working perfect...Thanks,

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