saasbook/hw-rails-intro

RottenPotatoes demo app: getting started

This app is associated with the online course and free textbook Engineering Software as a Service.

This repo contains starter code related to specific assignments. Please go to the specific assignment for instructions.
If you're taking this course on edX or if your classroom is using Codio, the assignments are linked from there. Alternatively, you can follow links to the assignment GitHub repos from the textbook.

hw-rails-intro's Issues

Note code issue

There is a new issue against the associated code repo:
saasbook/rottenpotatoes-rails-intro#15

Oops VFS connection does not exist

I am at this step:

If you are using c9, use rails s -p $PORT -b $IP and navigate to the link generated within c9.

The link that pops up in cloud9 opens a page saying only Oops VFS connection does not exist.

Some possible changes to the instructions?

From one of the SPOC instructors:

Before we could run git push heroku master:
— The instructions for getting set up on Heroku did not include setting up the keys. We had to use heroku keys:add ~/.ssh/id_rsa.pub
— We needed to use git remote add heroku [email protected]:.git

Tests:
— We had to run bundle install before we could run autotest
— odd errors in autotest on pending tests
— there seems to be an error on the third test for context ‘incorrectly’ - it appears to be looking for valid to be true when the guess is not correct

Perhaps some of these things should be added to the instructions.

codio/bundler issue

Susan reported:

I'm using Codio this semester, and was building the empty Rails app from chapter 4, ran "rails new myrottenpotatoes -T", got this error message:

Bundler could not find compatible versions for gem "bundler":
  In Gemfile:
    rails (= 4.2.10) was resolved to 4.2.10, which depends on
      bundler (< 2.0, >= 1.3.0)

  Current Bundler version:
    bundler (2.0.1)
This Gemfile requires a different version of Bundler.
Perhaps you need to update Bundler by running `gem install bundler`?

Could not find gem 'bundler (< 2.0, >= 1.3.0)', which is required by gem 'rails (= 4.2.10)', in any of the sources.
Fetching gem metadata from https://rubygems.org/..........
Fetching gem metadata from https://rubygems.org/.
Resolving dependencies...
         run bundle exec spring binstub --all
Bundler 2 requires Ruby 2.3 or later. Either install bundler 1 or update to a supported Ruby version.

Just to let everyone know that there may be version conflicts now that Bundler has dropped version 2.0.1. I had issues with HW2 and Bundler and Heroku. See the conference call video from 2/4/19 for further discussion.

use on codio

Jay Kunin:

Question about HW3 (rails) on Codio. I seem to be the first in production with Codio, so finding a lot of questions. Matt has been very helpful, but here's a new, not critical, one: In part 0, I can start the rails server with the Codio params (-p 3000 -b 0.0.0.0), and it starts and displays the right thing on the Box URL. But on the terminal there are a lot of messages starting "Cannot render console from . . ." I see in Sam's -ci file that C9 also does that. So it's not a serious problem, but I get a lot of queries from nervous students. Anybody seen this, and know of a fix? Otherwise we should put a note in the repo' s instructions to ignore those messages.

sqlite issue

Susan reported:

Now I'm having issues with my version of sqlite3. When I try to run rottenpotatoes, I get this error:
Specified 'sqlite3' for database adapter, but the gem is not loaded. Add `gem 'sqlite3'` to your Gemfile (and ensure its version is at the minimum required by ActiveRecord).
I'm using the Gemfile that is included with the app in Github which specifies gem sqlite3.
The Gemfile just calls for sqlite3 with no version number. Codio has sqlite3 version 3.8.2 engine installed. Could I have a version conflict?

and found she was able to fix it by locking the sqlite gem to 1.3.13

missing codio instructions

https://github.com/saasbook/hw-rails-intro/blob/master/docs/part_0_A.md

On Codio, students must add the line config.hosts = nil to config/environments/development.rb, change the preview static button to box URL, and run rails server with the command rails server -b 0.0.0.0. These instructions are present (with screenshots) in the former Codio version of the instructions but are missing here.

Fails to deploy to Heroku due to SQlite incompatibility

Error message when I attempt to deploy my otherwise working app (locally) to Heroku:

An error occurred while installing sqlite3 (1.3.11), and Bundler cannot
remote: continue.
remote: Make sure that gem install sqlite3 -v '1.3.11' succeeds before bundling.
remote: !
remote: ! Failed to install gems via Bundler.
remote: !
remote: ! Detected sqlite3 gem which is not supported on Heroku.
remote: ! https://devcenter.heroku.com/articles/sqlite3

I've read the article, but the suggested changes will take me far outside the tutorial, so I worry about future problems. I also tried this Stack Exchange suggestion, and then ran bundle --without production, but the Heroku refusal to deploy persists.

add learning objectives

as per previous assignments

are hints about `find` appropriate?

can do part 1 without find ...

add tests

like assignments before - should we add a complete set of tests that can be run locally?

split docs into three parts

as in sinatra assignment

instructions need formatting changes to self check questions

as well as adjusting some of the wording to include more details on databases etc.

break part 3 into more steps

part 3 consists of several requirements that could be broken out:

https://github.com/saasbook/hw-rails-intro/blob/master/docs/part_3.md

could we be asking students to stop after each of these, and consider refactoring in terms of what other features are just about to be needed ...

Minor issues when working with Heroku

Hi, I'm reviewing the online material and doing this homework (thanks for releasing such a terrific course!). So far, my development environment runs nicely but, unfortunately, I ran into some issues when trying to deploy to Heroku:

• The Gemfile specifies that HAML will only be installed in development and test environments, so the views are not been rendered (ActionView::MissingTemplate error). Besides, I had to move the sqlite gem to development and test groups in order to deploy to Heroku.
• The movie model uses attr_accesible which is not supported in Rails 4. Apparently, this wasn't a problem for my local environment but, on Heroku, I had to use strong parameters instead.