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View database.yml.erb
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<%
require 'cgi'
require 'uri'
begin
uri = URI.parse(ENV["DATABASE_URL"])
rescue URI::InvalidURIError
raise "Invalid DATABASE_URL"
end
raise "No RACK_ENV or RAILS_ENV found" unless ENV["RAILS_ENV"] || ENV["RACK_ENV"]
def attribute(name, value, force_string = false)
if value
value_string =
if force_string
'"' + value + '"'
else
value
end
"#{name}: #{value_string}"
else
""
end
end
adapter = uri.scheme
adapter = "postgresql" if adapter == "postgres"
database = (uri.path || "").split("/")[1]
username = uri.user
password = uri.password
host = uri.host
port = uri.port
params = CGI.parse(uri.query || "")
%>
 
<%= ENV["RAILS_ENV"] || ENV["RACK_ENV"] %>:
<%= attribute "adapter", adapter %>
<%= attribute "database", database %>
<%= attribute "username", username %>
<%= attribute "password", password, true %>
<%= attribute "host", host %>
<%= attribute "port", port %>
 
<% params.each do |key, value| %>
<%= key %>: <%= value.first %>
<% end %>
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