7
Vì vậy, tôi thực sự mới để Rails, và tôi nhận được một lỗi lạ mà tôi không hiểu. Tôi đã tạo một mô hình Sự kiện và tôi muốn di chuyển nó sang cơ sở dữ liệu của mình. Tuy nhiên, khi tôi chạy bundle exec rake db:migrate --trace đây là những gì tôi nhận được:Rails db: di chuyển hủy bỏ ... không chắc chắn lý do tại sao hoặc làm thế nào để sửa chữa nó
05:55 PM movienights: bundle exec rake db:migrate --trace
** Invoke db:migrate (first_time)
** Invoke environment (first_time)
** Execute environment
** Invoke db:load_config (first_time)
** Invoke rails_env (first_time)
** Execute rails_env
** Execute db:load_config
** Execute db:migrate
== CreateEvents: migrating ===================================================
-- create_table(:events)
rake aborted!
An error has occurred, all later migrations canceled:
undefined method `name' for #<ActiveRecord::ConnectionAdapters::TableDefinition:0x007ffa75a27660>
Documents/Homework/College/2011-2012/Rails/RailsApps/movienights/db/migrate/20120331213639_create_events.rb:4:in `block in change'
.rvm/gems/ruby-1.9.2-p318/gems/activerecord-3.2.2/lib/active_record/connection_adapters/abstract/schema_statements.rb:160:in `create_table'
.rvm/gems/ruby-1.9.2-p318/gems/activerecord-3.2.2/lib/active_record/connection_adapters/abstract_mysql_adapter.rb:432:in `create_table'
.rvm/gems/ruby-1.9.2-p318/gems/activerecord-3.2.2/lib/active_record/migration.rb:450:in `block in method_missing'
.rvm/gems/ruby-1.9.2-p318/gems/activerecord-3.2.2/lib/active_record/migration.rb:424:in `block in say_with_time'
.rvm/rubies/ruby-1.9.2-p318/lib/ruby/1.9.1/benchmark.rb:295:in `measure'
.rvm/gems/ruby-1.9.2-p318/gems/activerecord-3.2.2/lib/active_record/migration.rb:424:in `say_with_time'
.rvm/gems/ruby-1.9.2-p318/gems/activerecord-3.2.2/lib/active_record/migration.rb:444:in `method_missing'
Documents/Homework/College/2011-2012/Rails/RailsApps/movienights/db/migrate/20120331213639_create_events.rb:3:in `change'
.rvm/gems/ruby-1.9.2-p318/gems/activerecord-3.2.2/lib/active_record/migration.rb:393:in `block (2 levels) in migrate'
.rvm/rubies/ruby-1.9.2-p318/lib/ruby/1.9.1/benchmark.rb:295:in `measure'
.rvm/gems/ruby-1.9.2-p318/gems/activerecord-3.2.2/lib/active_record/migration.rb:393:in `block in migrate'
.rvm/gems/ruby-1.9.2-p318/gems/activerecord-3.2.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:118:in `with_connection'
.rvm/gems/ruby-1.9.2-p318/gems/activerecord-3.2.2/lib/active_record/migration.rb:377:in `migrate'
.rvm/gems/ruby-1.9.2-p318/gems/activerecord-3.2.2/lib/active_record/migration.rb:512:in `migrate'
.rvm/gems/ruby-1.9.2-p318/gems/activerecord-3.2.2/lib/active_record/migration.rb:704:in `block (2 levels) in migrate'
.rvm/gems/ruby-1.9.2-p318/gems/activerecord-3.2.2/lib/active_record/migration.rb:761:in `call'
.rvm/gems/ruby-1.9.2-p318/gems/activerecord-3.2.2/lib/active_record/migration.rb:761:in `ddl_transaction'
.rvm/gems/ruby-1.9.2-p318/gems/activerecord-3.2.2/lib/active_record/migration.rb:703:in `block in migrate'
.rvm/gems/ruby-1.9.2-p318/gems/activerecord-3.2.2/lib/active_record/migration.rb:684:in `each'
.rvm/gems/ruby-1.9.2-p318/gems/activerecord-3.2.2/lib/active_record/migration.rb:684:in `migrate'
.rvm/gems/ruby-1.9.2-p318/gems/activerecord-3.2.2/lib/active_record/migration.rb:554:in `up'
.rvm/gems/ruby-1.9.2-p318/gems/activerecord-3.2.2/lib/active_record/migration.rb:535:in `migrate'
.rvm/gems/ruby-1.9.2-p318/gems/activerecord-3.2.2/lib/active_record/railties/databases.rake:153:in `block (2 levels) in <top (required)>'
.rvm/gems/ruby-1.9.2-p318/gems/rake-0.9.2.2/lib/rake/task.rb:205:in `call'
.rvm/gems/ruby-1.9.2-p318/gems/rake-0.9.2.2/lib/rake/task.rb:205:in `block in execute'
.rvm/gems/ruby-1.9.2-p318/gems/rake-0.9.2.2/lib/rake/task.rb:200:in `each'
.rvm/gems/ruby-1.9.2-p318/gems/rake-0.9.2.2/lib/rake/task.rb:200:in `execute'
.rvm/gems/ruby-1.9.2-p318/gems/rake-0.9.2.2/lib/rake/task.rb:158:in `block in invoke_with_call_chain'
.rvm/rubies/ruby-1.9.2-p318/lib/ruby/1.9.1/monitor.rb:201:in `mon_synchronize'
.rvm/gems/ruby-1.9.2-p318/gems/rake-0.9.2.2/lib/rake/task.rb:151:in `invoke_with_call_chain'
.rvm/gems/ruby-1.9.2-p318/gems/rake-0.9.2.2/lib/rake/task.rb:144:in `invoke'
.rvm/gems/ruby-1.9.2-p318/gems/rake-0.9.2.2/lib/rake/application.rb:116:in `invoke_task'
.rvm/gems/ruby-1.9.2-p318/gems/rake-0.9.2.2/lib/rake/application.rb:94:in `block (2 levels) in top_level'
.rvm/gems/ruby-1.9.2-p318/gems/rake-0.9.2.2/lib/rake/application.rb:94:in `each'
.rvm/gems/ruby-1.9.2-p318/gems/rake-0.9.2.2/lib/rake/application.rb:94:in `block in top_level'
.rvm/gems/ruby-1.9.2-p318/gems/rake-0.9.2.2/lib/rake/application.rb:133:in `standard_exception_handling'
.rvm/gems/ruby-1.9.2-p318/gems/rake-0.9.2.2/lib/rake/application.rb:88:in `top_level'
.rvm/gems/ruby-1.9.2-p318/gems/rake-0.9.2.2/lib/rake/application.rb:66:in `block in run'
.rvm/gems/ruby-1.9.2-p318/gems/rake-0.9.2.2/lib/rake/application.rb:133:in `standard_exception_handling'
.rvm/gems/ruby-1.9.2-p318/gems/rake-0.9.2.2/lib/rake/application.rb:63:in `run'
.rvm/gems/ruby-1.9.2-p318/gems/rake-0.9.2.2/bin/rake:33:in `<top (required)>'
.rvm/gems/ruby-1.9.2-p318/bin/rake:19:in `load'
.rvm/gems/ruby-1.9.2-p318/bin/rake:19:in `<main>'
Tasks: TOP => db:migrate
Khi tôi chạy bundle exec rake, tôi nhận được:
You have 1 pending migrations:
20120331213639 CreateEvents
Run `rake db:migrate` to update your database then try again.
My Tạo sự kiện di cư là:
class CreateEvents < ActiveRecord::Migration
def change
create_table :events do |t|
t.name :string
t.date :datetime
t.location :string
t.timestamps
end
end
end
Tuy nhiên, tôi đã xóa mô hình Sự kiện bằng cách sử dụng rails destroy scaffold Event và tạo lại mô hình với các thuộc tính khác nhau. Điều này có thể là một phần của vấn đề?
Bất kỳ trợ giúp hoặc đề xuất nào được đánh giá cao!
chúng ta có thể thấy việc tạo sự kiện di chuyển không? – Spyros