问题
Have not played with Rails in ages so walking through the Learn Ruby on Rails tutorial which is excellent.
I'm having issues with google authentication, the example code calls the config/secrets.yml variables (which are read from ENV in the shell) from the app/models/contact.rb model update_spreadsheet method below
def update_spreadsheet
connection = GoogleDrive.login(Rails.application.secrets.gmail_username, Rails.application.secrets.gmail_password)
I have the ENV variable set via my ~/.bash_profile and have confirmed using the following code I can make things work, but it's not the example code so I'm just hacking.
def update_spreadsheet
connection = GoogleDrive.login(ENV["GMAIL_USERNAME"], ENV["GMAIL_PASSWORD"])
I can make it work but, I wanted to follow the tutorial and know how to troubleshoot better. if anyone has a pointer it would be appreciated.
Inside my config/secrets.yml file looks like:
development:
gmail_username: <%= ENV["GMAIL_USERNAME"] %>
gmail_password: <%= ENV["GMAIL_PASSWORD"] %>
Thank you
回答1:
Rails reads secrets.yml but getting the value from secrets.yml is little different then how you had used it, check the code below:
secrets.yml:
development: secret_key_base: 3b7cd727ee24e8444053437c36cc66c3 some_api_key: SOMEKEY
This is how you can access the value:
Rails.application.secrets.some_api_key returns SOMEKEY
回答2:
I was having the same issue here and followed all the instructions here and was still experiencing difficulties. My gmail password does not have any special characters, but in my .bash profile I just tried putting single quotes around the contents of the double quotes for both GMAIL_USERNAME and GMAIL_PASSWORD, and it finally worked!
回答3:
The above solution did not work for me. However, I found the solution on How do I use variables in a YAML file?
My .yml file contained something like:
development:
gmail_username: <%= ENV["GMAIL_USERNAME"] %>
gmail_password: <%= ENV["GMAIL_PASSWORD"] %>
In your .rb file,access the yml file as:
template = ERB.new File.new("path/to/config.yml.erb").read
processed = YAML.load template.result(binding)
So when you introduce a scriptlet tag in .yml file, it is more of erb template. So read it as a erb template first and then load the yml as shown above.
来源：https://stackoverflow.com/questions/23036246/issues-using-config-secrets-yml-variable-set-from-env-variable-on-rails-4-1-0