bundle exec rake db：setup，“用户名”适配器不支持Rake任务

Question

当我尝试运行bundle exec rake db:setup ，它给了我这个错误

当我将适配器更改为我的用户名时，出现了相同的错误

PG::InsufficientPrivilege: ERROR:  permission denied to create database
: CREATE DATABASE "freelance_camp_documents_development" ENCODING = 'unicode'
Couldn't create database for {"adapter"=>"postgresql", "encoding"=>"unicode", "pool"=>5, "database"=>"freelance_camp_documents_development"}
rake aborted!
ActiveRecord::StatementInvalid: PG::InsufficientPrivilege: ERROR:  permission denied to create database
: CREATE DATABASE "freelance_camp_documents_development" ENCODING = 'unicode'
/usr/local/share/gems/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/postgresql/database_statements.rb:98:in `async_exec'
/usr/local/share/gems/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/postgresql/database_statements.rb:98:in `block in execute'
/usr/local/share/gems/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/abstract_adapter.rb:566:in `block in log'
/usr/local/share/gems/gems/activesupport-

我不能将整个错误放在这里，这是database.yml代码

default: &default
  adapter: postgresql
  encoding: unicode
  # For details on connection pooling, see rails configuration guide
  # http://guides.rubyonrails.org/configuring.html#database-pooling
  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>

development:
  <<: *default
  database: freelance_camp_documents_development

test:
  <<: *default
  database: freelance_camp_documents_test

production:
  <<: *default
  database: freelance_camp_documents_production
  username: freelance_camp_documents
  password: <%= ENV['FREELANCE_CAMP_DOCUMENTS_DATABASE_PASSWORD'] %>

Answer 1

PG :: InsufficientPrivilege：错误：拒绝创建数据库的权限

这里的问题是您没有足够的权限给Postgres上的freelance_camp_documents用户。

我建议将用户freelance_camp_documents权限从postgres更改，或仅将用户名更改为postgres

production:
  <<: *default
  database: freelance_camp_documents_production
  username: postgres
  password: <%= ENV['FREELANCE_CAMP_DOCUMENTS_DATABASE_PASSWORD'] %>

postgres用户默认具有权限，因此您无需更改任何内容