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rails-activerecord-model-rails-lab's Introduction

ActiveRecord Model Rails Lab

Objectives

Create a migration by hand
Create a model by hand
Build a model instance method

Building a Model

You can find the test suite for this application in the spec/models directory and run them with the command: bundle exec rspec. This lab tests to ensure that your app can create records and that it has an instance method that can be called on the model.

Instructions

Create a folder named migrate in the db directory (By convention ActiveRecord will look for this exact folder name when running migrations.)
Create a table by hand named students that has the columns: first_name and last_name – this should be accomplished by creating a new database migration
Create a model for the students' table that inherits from ActiveRecord::Base
Implement a to_s instance method in the model that will return the concatenated first and last names for students. For example: first_name: "Daenerys", last_name: "Targaryen" => "Daenerys Targaryen"

rails-activerecord-model-rails-lab's People

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franknowinski lcorr8 dev-learn-co-curriculum corytveten luiszaba kenkuts fbohz debsters assansav wizardywizard rhtaylor ericiscoding jahman07104 hamcodes desterstorm chalpenny chrisbaptiste83 bonjourannie munroe1786 alouiscious lanicemp rilemoore-zz jermain119 chriskay25 davidlago104 mrwinston700 mimirandi21 mjones1818 jessenreynolds ar00gula turpp karegan4 spenser6131 bellaappel rakitzis45 smassarsky madelinemc jcode319 miodice3 bclarke329 ggebre ocawthorne hiddencilantro jtaylorjohnson b-awhite jratana1 nicklevenson joshraiborde hellobontempo dariaskehl nrymarz sebastianspiegel efuathesingingdeveloper shilcof erikn775 andrudog7 ah-james bengroves1996 craigsmith789 rebecca-lindsey brownjer3 cassymarie codemama96 mpthor86 jbrasko2 chay-chay sandstorm890 njsilas talryan oshinsayami nmhummel itsdonna jomapormentilla desilerma25 aceprincipal garrett-bodley zcammack jcport1 dianamora arvinf07 naeemz11 eandersonn rkredfern codekitch eagrundy doode1524 santanajay21 microjupiter masterpkpk mcrea23 t-flood wesley3295 kjosenenko travisslee strycora kdshah6593 filippmi mattbertrand charlesangelolai joycejosh7

rails-activerecord-model-rails-lab's Issues

JSON 1.8.3 incompatible

I'm on Linux Fedora, using Ruby 2.5.1. (but no ruby version specified anyway) and rbenv. Looked at Issue 303 and so I installed 1.8.6. Then reran bundler to generate new gemfile.lock and everything looks fine for the moment...

An error occurred while installing json (1.8.3), and Bundler cannot
continue.                                                                    
Make sure that `gem install json -v '1.8.3' --source 'https://rubygems.org/'`
succeeds before bundling.                                                    

In Gemfile:
  rails was resolved to 4.2.3, which depends on
    actionmailer was resolved to 4.2.3, which depends on
      actionpack was resolved to 4.2.3, which depends on
        actionview was resolved to 4.2.3, which depends on
          rails-dom-testing was resolved to 1.0.7, which depends on
rails-deprecated_sanitizer was resolved to 1.0.3, which depends
on
              activesupport was resolved to 4.2.3, which depends on
                json

No tests?

When I forked and cloned the lab, the Student model rspec didn't have a test. It had a "pending" but nothing over that. I ended up writing the tests, which I didn't really mind, but I wish it would have been included in the instructions. They currently seem to imply that the tests are built in.

Lab wont advance or complete

i've logged out and learn saved as well as git commit -m , but this lab will not submit work and move forward to the next lab.

Issue with monkey patching

Hello,

I just wanted to complain that the to_s method required to pass this lab is basically monkey patching. It requires us to modify an existing method that Ruby has (to_s) and make it have new functionality. This is just really strange, and I wanted to point this contradiction out (contradicts previous lessons saying not to do this).

ActiveRecord Model and Rails Lab missing crucial detail in Instructions

Hi there! Was helping a student with the ActiveRecord Models and Rails Lab and while attempting to run rake db:migrate as you do, there was no error or information being outputted in the terminal to help assist this error. The solution was the create a migrate directory inside the db directory where your create_table file would live. The Instructions are missing this crucial detail and quite a few students are having this problem as well.

What is the proper channel in resolving this issue for the curriculum?
Or does anyone think this would be a good idea to add that into the instructions as a note or something to assist students in avoiding the confusion?

Here is the instructions snippet from the lab for reference:

Hope this is helpful!

Need better instrustions

I spent a solid 30 minutes trying to figure out why my migration wasnt working. Even hopped on a zoom call with an instructor for another 20 minutes and went through basically all the same steps I went through by myself and then finally realized it wasn't working because my migration file was not inside a "migrate" folder.

In this lab and the previous one they should definitely state that your migrations need to be in that folder. I do not remember ever learning that and it took up quite a bit of time to try to figure out.

URL update needed

Similar to the Fwitter lab, this lab's "View on GitHub" link is not available:

However the "Raise an Issue" link brings me here to the learn-co-curriculum account. That must have been how I got the wrong version of the Fwitter lab. I won't make the same mistake again. I'll wait for an update to the student version.

Hope you had a nice NYE!

After removing the Gemfile.lock from this repo, I still can't `bundle install` on Mac M1.

Thanks for raising this issue! Future learners thank you for your diligence. In
order to help the curriculum team address the problem, please use this template
to submit your feedback. We'll work on addressing the issue as soon as we can.

Please fill out as much of the information below as you can (it's ok if you
don't fill out every section). The more context we have, the easier it will be
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Note: you should only raise issues related to the contents of this lesson.
If you have questions about your code or need help troubleshooting, reach out to
an instructor/your peers.

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keep running into issue running rspec on this lab

learn
/home/nitrous/code/labs/rails-activerecord-model-rails-lab-v-000/.bundle/gems/sass-3.4.21/lib/sass/tree/visitors/perform.rb:290: warning: literal in condition
/home/nitrous/code/labs/rails-activerecord-model-rails-lab-v-000/.bundle/gems/sass-3.4.21/lib/sass/selector/simple_sequence.rb:91: warning: literal in condition
/home/nitrous/code/labs/rails-activerecord-model-rails-lab-v-000/.bundle/gems/sass-3.4.21/lib/sass/selector/simple_sequence.rb:164: warning: literal in condition
/home/nitrous/code/labs/rails-activerecord-model-rails-lab-v-000/.bundle/gems/sass-3.4.21/lib/sass/selector/simple_sequence.rb:207: warning: literal in condition
/home/nitrous/code/labs/rails-activerecord-model-rails-lab-v-000/.bundle/gems/sass-3.4.21/lib/sass/selector/simple_sequence.rb:207: warning: literal in condition
/home/nitrous/code/labs/rails-activerecord-model-rails-lab-v-000/.bundle/gems/sass-3.4.21/lib/sass/script/functions.rb:2422: warning: literal in condition
/home/nitrous/code/labs/rails-activerecord-model-rails-lab-v-000/.bundle/gems/sass-3.4.21/lib/sass/script/functions.rb:2554: warning: literal in condition
/home/nitrous/code/labs/rails-activerecord-model-rails-lab-v-000/.bundle/gems/sass-3.4.21/lib/sass/script/parser.rb:49: warning: literal in condition
/home/nitrous/code/labs/rails-activerecord-model-rails-lab-v-000/.bundle/gems/sass-3.4.21/lib/sass/script/parser.rb:49: warning: literal in condition
/home/nitrous/code/labs/rails-activerecord-model-rails-lab-v-000/.bundle/gems/sass-3.4.21/lib/sass/script/parser.rb:376: warning: literal in condition
/home/nitrous/code/labs/rails-activerecord-model-rails-lab-v-000/.bundle/gems/sass-3.4.21/lib/sass/script/parser.rb:402: warning: literal in condition
/home/nitrous/code/labs/rails-activerecord-model-rails-lab-v-000/.bundle/gems/sass-3.4.21/lib/sass/script/parser.rb:606: warning: literal in condition
/home/nitrous/code/labs/rails-activerecord-model-rails-lab-v-000/.bundle/gems/sass-3.4.21/lib/sass/script/parser.rb:606: warning: literal in condition
/home/nitrous/code/labs/rails-activerecord-model-rails-lab-v-000/.bundle/gems/sass-3.4.21/lib/sass/scss/parser.rb:512: warning: literal in condition
/home/nitrous/code/labs/rails-activerecord-model-rails-lab-v-000/.bundle/gems/sass-3.4.21/lib/sass/scss/static_parser.rb:65: warning: literal in condition
/home/nitrous/code/labs/rails-activerecord-model-rails-lab-v-000/.bundle/gems/sass-rails-5.0.4/lib/sass/rails/helpers.rb:6: warning: method redefined; discarding old asset_data_url
/home/nitrous/code/labs/rails-activerecord-model-rails-lab-v-000/.bundle/gems/sprockets-3.5.2/lib/sprockets/sass_processor.rb:253: warning: previous definition of asset_data_url was he
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