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rails--rails/railties/lib/rails/info.rb
eileencodes 7b4fdf3ce7
Remove assumption that a primary config exists
Applications may not have a primary configuration so we should not
assume there is one. In both these cases we can get the right connection
without that.

For the databases.rake file we want to re-establish a connection for the
environment we're in. The first config defined under an environment for
a multi-db app will win. This is already the case on application boot so
we should be consistent.

For the info.rb file we already have a connection so we can lookup the
adapter from the connection's db_config. If a primary hadn't existed
this would have thrown an exception.

Followup to https://github.com/rails/rails/pull/39535 which removed the
assumption there was a primary config from the schema cache load
railtie.

Co-authored-by: John Crepezzi <john.crepezzi@gmail.com>
2020-06-04 15:08:59 -04:00

105 lines
2.7 KiB
Ruby

# frozen_string_literal: true
require "cgi"
module Rails
# This module helps build the runtime properties that are displayed in
# Rails::InfoController responses. These include the active Rails version,
# Ruby version, Rack version, and so on.
module Info
mattr_accessor :properties, default: []
class << @@properties
def names
map(&:first)
end
def value_for(property_name)
if property = assoc(property_name)
property.last
end
end
end
class << self #:nodoc:
def property(name, value = nil)
value ||= yield
properties << [name, value] if value
rescue Exception
end
def to_s
column_width = properties.names.map(&:length).max
info = properties.map do |name, value|
value = value.join(", ") if value.is_a?(Array)
"%-#{column_width}s %s" % [name, value]
end
info.unshift "About your application's environment"
info * "\n"
end
alias inspect to_s
def to_html
(+"<table>").tap do |table|
properties.each do |(name, value)|
table << %(<tr><td class="name">#{CGI.escapeHTML(name.to_s)}</td>)
formatted_value = if value.kind_of?(Array)
"<ul>" + value.map { |v| "<li>#{CGI.escapeHTML(v.to_s)}</li>" }.join + "</ul>"
else
CGI.escapeHTML(value.to_s)
end
table << %(<td class="value">#{formatted_value}</td></tr>)
end
table << "</table>"
end
end
end
# The Rails version.
property "Rails version" do
Rails.version.to_s
end
# The Ruby version and platform, e.g. "2.0.0-p247 (x86_64-darwin12.4.0)".
property "Ruby version" do
RUBY_DESCRIPTION
end
# The RubyGems version, if it's installed.
property "RubyGems version" do
Gem::VERSION
end
property "Rack version" do
::Rack.release
end
property "JavaScript Runtime" do
ExecJS.runtime.name
end
property "Middleware" do
Rails.configuration.middleware.map(&:inspect)
end
# The application's location on the filesystem.
property "Application root" do
File.expand_path(Rails.root)
end
# The current Rails environment (development, test, or production).
property "Environment" do
Rails.env
end
# The name of the database adapter for the current environment.
property "Database adapter" do
ActiveRecord::Base.connection.pool.db_config.adapter
end
property "Database schema version" do
ActiveRecord::Base.connection.migration_context.current_version rescue nil
end
end
end