I've got a problem trying to run a migration in my rails project.
I have a simple addition of two tables:
class ModifyCurrentTablesToNewDesign < ActiveRecord::Migration
def change
# Some other migrations...
# New Table Companies
create_table :companies do |t|
t.string :name
end
# New Table Teams
create_table :teams do |t|
t.string :name
t.belongs_to :companies, :index => true, :foreign_key => true
end
# Some oooother migrations...
end
end
And when a run it, I've got this:
-- create_table(:companies)
-> 0.0036s
-- create_table(:teams)
rake aborted!
StandardError: An error has occurred, this and all later migrations canceled:
PG::UndefinedColumn: ERROR: column "company_id" referenced in foreign key constraint does not exist
: ALTER TABLE "teams" ADD CONSTRAINT "fk_rails_e080df8a94"
FOREIGN KEY ("company_id")
REFERENCES "companies" ("id")
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/connection_adapters/postgresql/database_statements.rb:155:in `async_exec'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/connection_adapters/postgresql/database_statements.rb:155:in `block in execute'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract_adapter.rb:473:in `block in log'
/Library/Ruby/Gems/2.0.0/gems/activesupport-4.2.3/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract_adapter.rb:467:in `log'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/connection_adapters/postgresql/database_statements.rb:154:in `execute'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract/schema_statements.rb:762:in `add_foreign_key'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract/schema_statements.rb:217:in `block in create_table'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract/schema_statements.rb:216:in `each_pair'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract/schema_statements.rb:216:in `create_table'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/migration.rb:661:in `block in method_missing'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/migration.rb:631:in `block in say_with_time'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/migration.rb:631:in `say_with_time'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/migration.rb:651:in `method_missing'
/Users/julian/Development/sikuani/plataforma-eventos/db/migrate/20160121164754_modify_current_tables_to_new_design.rb:35:in `change'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/migration.rb:605:in `exec_migration'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/migration.rb:589:in `block (2 levels) in migrate'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/migration.rb:588:in `block in migrate'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:292:in `with_connection'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/migration.rb:587:in `migrate'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/migration.rb:764:in `migrate'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/migration.rb:994:in `block in execute_migration_in_transaction'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/migration.rb:1040:in `block in ddl_transaction'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract/database_statements.rb:213:in `block in transaction'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract/transaction.rb:184:in `within_new_transaction'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract/database_statements.rb:213:in `transaction'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/transactions.rb:220:in `transaction'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/migration.rb:1040:in `ddl_transaction'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/migration.rb:993:in `execute_migration_in_transaction'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/migration.rb:955:in `block in migrate'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/migration.rb:951:in `each'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/migration.rb:951:in `migrate'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/migration.rb:819:in `up'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/migration.rb:797:in `migrate'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/tasks/database_tasks.rb:137:in `migrate'
/Library/Ruby/Gems/2.0.0/gems/activerecord-4.2.3/lib/active_record/railties/databases.rake:44:in `block (2 levels) in <top (required)>'
Tasks: TOP => db:migrate
(See full trace by running task with --trace)
Isn't supposed that when the table companies is created, by default a column id is created within? Can you see why could this be happening?
It seems you have a 1:M relationship between companies and teams.
You need to use the singular because a team belongs to a single company, not multiple companies.
t.belongs_to :company, :index => true, :foreign_key => true
Related
On migration I get the following error message:
PG::UndefinedTable: ERROR: relation "step_images" does not exist LINE 5: WHERE a.attrelid = '"step_images"'::regclass ^ : SELECT a.attname, format_type(a.atttypid, a.atttypmod), pg_get_expr(d.adbin, d.adrelid), a.attnotnull, a.atttypid, a.atttypmod FROM pg_attribute a LEFT JOIN pg_attrdef d ON a.attrelid = d.adrelid AND a.attnum = d.adnum WHERE a.attrelid = '"step_images"'::regclass AND a.attnum > 0 AND NOT a.attisdropped ORDER BY a.attnum
in db
class CreateStepImages < ActiveRecord::Migration
def change
create_table :step_images do |t|
t.string :text
t.attachment :image1
t.attachment :image2
t.attachment :image3
t.attachment :image4
t.attachment :image5
t.references :steptation, index: true
t.timestamps
end
end
end
in step_image model
class StepImage < ActiveRecord::Base
belongs_to :steptation
belongs_to :user
end
in steptation model
has_many :step_images
in step_images controller
class StepImagesController < ApplicationController
before_action :find_step_image ,only:[:show,:update,:edit,:destroy]
before_action :set_steptation, only: [:new, :create]
def new
#steptation =Steptation.find(params[:id])
#step_image = #steptation.step_images.build
#user = current_user
end
def index
end
def create
#step_image = Step_image.new(step_image_params)
#step_image.user_id = current_user.id
if #step_image.save
#steptation.step_images << #step_image
redirect_to case_path(id: #steptation.case_id)
else
render :new
end
end
def edit
end
def update
if #step_image.update(step_image_params)
redirect_to root_path, alert: "steptation Information updated successfully"
else
flash.now[:error] = "Couldn't update!"
render :edit
end
end
def destroy
#step_image.destroy
redirect_to root_path, notice: "step_image deleted Successfully"
end
private
def set_steptation
#steptation = Steptation.find(params[:id])
end
def find_step_image
#step_image = Step_image.find(params[:id])
end
def step_image_params
params.require(:step_image).permit(:text,:image1,:image2,:image3,:image4,:image5)
end
end
I did rake db:rollback STEP=1
$ rake db:rollback STEP=1
ActiveRecord::SchemaMigration Load (0.9ms) SELECT "schema_migrations".* FROM "schema_migrations"
ActiveRecord::SchemaMigration Load (0.3ms) SELECT "schema_migrations".* FROM "schema_migrations"
Migrating to CreateStepImages (20201119214001)
(0.1ms) BEGIN
== 20201119214001 CreateStepImages: reverting =================================
-- drop_table(:step_images)
(10.3ms) DROP TABLE "step_images"
(0.2ms) ROLLBACK
rake aborted!
StandardError: An error has occurred, this and all later migrations canceled:
PG::UndefinedTable: ERROR: table "step_images" does not exist
: DROP TABLE "step_images"
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/postgresql/database_statements.rb:155:in `async_exec'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/postgresql/database_statements.rb:155:in `block in execute'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:484:in `block in log'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:478:in `log'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/postgresql/database_statements.rb:154:in `execute'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/postgresql/schema_statements.rb:127:in `drop_table'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:665:in `block in method_missing'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:634:in `block in say_with_time'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:634:in `say_with_time'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:654:in `method_missing'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:499:in `block in revert'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:498:in `each'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:498:in `revert'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:606:in `exec_migration'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:592:in `block (2 levels) in migrate'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:591:in `block in migrate'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:292:in `with_connection'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:590:in `migrate'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:768:in `migrate'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:1023:in `block in execute_migration_in_transaction'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:1069:in `block in ddl_transaction'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:213:in `block in transaction'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:184:in `within_new_transaction'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:213:in `transaction'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:220:in `transaction'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:1069:in `ddl_transaction'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:1022:in `execute_migration_in_transaction'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:984:in `block in migrate'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:980:in `each'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:980:in `migrate'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:830:in `down'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:935:in `move'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:812:in `rollback'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/railties/databases.rake:118:in `block (2 levels) in <top (required)>'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/rake-13.0.1/exe/rake:27:in `<top (required)>'
/Users/nour/.rvm/gems/ruby-2.5.5/bin/ruby_executable_hooks:24:in `eval'
/Users/nour/.rvm/gems/ruby-2.5.5/bin/ruby_executable_hooks:24:in `<main>'
Caused by:
ActiveRecord::StatementInvalid: PG::UndefinedTable: ERROR: table "step_images" does not exist
: DROP TABLE "step_images"
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/postgresql/database_statements.rb:155:in `async_exec'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/postgresql/database_statements.rb:155:in `block in execute'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:484:in `block in log'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:478:in `log'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/postgresql/database_statements.rb:154:in `execute'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/postgresql/schema_statements.rb:127:in `drop_table'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:665:in `block in method_missing'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:634:in `block in say_with_time'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:634:in `say_with_time'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:654:in `method_missing'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:499:in `block in revert'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:498:in `each'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:498:in `revert'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:606:in `exec_migration'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:592:in `block (2 levels) in migrate'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:591:in `block in migrate'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:292:in `with_connection'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:590:in `migrate'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:768:in `migrate'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:1023:in `block in execute_migration_in_transaction'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:1069:in `block in ddl_transaction'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:213:in `block in transaction'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:184:in `within_new_transaction'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:213:in `transaction'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:220:in `transaction'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:1069:in `ddl_transaction'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:1022:in `execute_migration_in_transaction'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:984:in `block in migrate'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:980:in `each'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:980:in `migrate'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:830:in `down'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:935:in `move'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:812:in `rollback'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/railties/databases.rake:118:in `block (2 levels) in <top (required)>'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/rake-13.0.1/exe/rake:27:in `<top (required)>'
/Users/nour/.rvm/gems/ruby-2.5.5/bin/ruby_executable_hooks:24:in `eval'
/Users/nour/.rvm/gems/ruby-2.5.5/bin/ruby_executable_hooks:24:in `<main>'
Caused by:
PG::UndefinedTable: ERROR: table "step_images" does not exist
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/postgresql/database_statements.rb:155:in `async_exec'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/postgresql/database_statements.rb:155:in `block in execute'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:484:in `block in log'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:478:in `log'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/postgresql/database_statements.rb:154:in `execute'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/postgresql/schema_statements.rb:127:in `drop_table'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:665:in `block in method_missing'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:634:in `block in say_with_time'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:634:in `say_with_time'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:654:in `method_missing'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:499:in `block in revert'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:498:in `each'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:498:in `revert'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:606:in `exec_migration'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:592:in `block (2 levels) in migrate'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:591:in `block in migrate'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:292:in `with_connection'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:590:in `migrate'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:768:in `migrate'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:1023:in `block in execute_migration_in_transaction'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:1069:in `block in ddl_transaction'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:213:in `block in transaction'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:184:in `within_new_transaction'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:213:in `transaction'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:220:in `transaction'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:1069:in `ddl_transaction'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:1022:in `execute_migration_in_transaction'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:984:in `block in migrate'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:980:in `each'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:980:in `migrate'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:830:in `down'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:935:in `move'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/migration.rb:812:in `rollback'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/activerecord-4.2.11.1/lib/active_record/railties/databases.rake:118:in `block (2 levels) in <top (required)>'
/Users/nour/.rvm/gems/ruby-2.5.5/gems/rake-13.0.1/exe/rake:27:in `<top (required)>'
/Users/nour/.rvm/gems/ruby-2.5.5/bin/ruby_executable_hooks:24:in `eval'
/Users/nour/.rvm/gems/ruby-2.5.5/bin/ruby_executable_hooks:24:in `<main>'
Tasks: TOP => db:rollback
(See full trace by running task with --trace)
When running rake db:migrate, rails will load the full application code before executing the migrations. Therefore, when you have already defined the StepImage class, rails will try to find the corresponding table. However, at this point in time, the table has not yet been created, which then causes this error. Try to comment out the StepImage class and everything associated with it (e.g. by moving the files out of the project folder) and re-run the migration. If it works, move the files back.
It seems like the rollback failed for the same reason: the step_images table has never been created. In such cases, I typically do the following:
Put the migration content into begin/rescue/end:
def change
begin
create_table :step_images do |t|
t.string :text
t.attachment :image1
#...
end
rescue
end
end
Rollback this migration to get to the original state. The rescue block will catch the error and the migration should succeed.
Use psql to check that the step_images table is actually gone. If not, delete it with psql.
Sanitize the source code: remove everything that has to do with the new step_images table. Start with this migration. Move it out of the project, so that rails c will not complain about a pending migration. Then move all models, controller, etc. out of the project. Remove all associations pointing to the new model (comment out). Otherwise, relations pointing to non-existing models/tables will cause more errors.
Sanitize until rails c succeeds in starting the application.
Move the migration back into db/migrations and run it.
If this succeeds, bring everything back in again. If unsure, do in multiple small steps and check in-between by running rails c.
Hope this helps!
I have created a web app in rails and I was using sqlite3. Now I am trying to deploy it with heroku which uses pg but I am running into this error:
PG::UndefinedTable: ERROR: relation "user_profiles" does not exist
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/connection_adapters/postgresql/database_statements.rb:92:in `exec'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/connection_adapters/postgresql/database_statements.rb:92:in `block (2 levels) in execute'
/app/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.2.2/lib/active_support/dependencies/interlock.rb:48:in `block in permit_concurrent_loads'
/app/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.2.2/lib/active_support/concurrency/share_lock.rb:187:in `yield_shares'
/app/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.2.2/lib/active_support/dependencies/interlock.rb:47:in `permit_concurrent_loads'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/connection_adapters/postgresql/database_statements.rb:91:in `block in execute'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/connection_adapters/abstract_adapter.rb:718:in `block (2 levels) in log'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/connection_adapters/abstract_adapter.rb:717:in `block in log'
/app/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.2.2/lib/active_support/notifications/instrumenter.rb:24:in `instrument'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/connection_adapters/abstract_adapter.rb:708:in `log'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/connection_adapters/postgresql/database_statements.rb:90:in `execute'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/connection_adapters/postgresql/schema_statements.rb:443:in `add_index'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/migration.rb:890:in `block in method_missing'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/migration.rb:858:in `block in say_with_time'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/migration.rb:858:in `say_with_time'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/migration.rb:879:in `method_missing'
/app/db/migrate/20200327044108_create_user_profiles.rb:10:in `block in change'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/connection_adapters/abstract/schema_statements.rb:309:in `create_table'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/migration.rb:890:in `block in method_missing'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/migration.rb:858:in `block in say_with_time'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/migration.rb:858:in `say_with_time'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/migration.rb:879:in `method_missing'
/app/db/migrate/20200327044108_create_user_profiles.rb:3:in `change'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/migration.rb:828:in `exec_migration'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/migration.rb:812:in `block (2 levels) in migrate'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/migration.rb:811:in `block in migrate'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:473:in `with_connection'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/migration.rb:810:in `migrate'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/migration.rb:1001:in `migrate'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/migration.rb:1311:in `block in execute_migration_in_transaction'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/migration.rb:1362:in `block in ddl_transaction'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/connection_adapters/abstract/database_statements.rb:281:in `block in transaction'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/connection_adapters/abstract/transaction.rb:280:in `block in within_new_transaction'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/connection_adapters/abstract/transaction.rb:278:in `within_new_transaction'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/connection_adapters/abstract/database_statements.rb:281:in `transaction'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/transactions.rb:212:in `transaction'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/migration.rb:1362:in `ddl_transaction'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/migration.rb:1310:in `execute_migration_in_transaction'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/migration.rb:1282:in `block in migrate_without_lock'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/migration.rb:1281:in `each'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/migration.rb:1281:in `migrate_without_lock'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/migration.rb:1229:in `block in migrate'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/migration.rb:1382:in `with_advisory_lock'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/migration.rb:1229:in `migrate'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/migration.rb:1061:in `up'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/migration.rb:1036:in `migrate'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/tasks/database_tasks.rb:238:in `migrate'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/railties/databases.rake:86:in `block (3 levels) in <main>'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/railties/databases.rake:84:in `each'
/app/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/railties/databases.rake:84:in `block (2 levels) in <main>'
/app/vendor/bundle/ruby/2.6.0/gems/rake-13.0.1/exe/rake:27:in `<top (required)>'
/app/vendor/bundle/ruby/2.6.0/gems/bundler-1.17.3/lib/bundler/cli/exec.rb:74:in `load'
/app/vendor/bundle/ruby/2.6.0/gems/bundler-1.17.3/lib/bundler/cli/exec.rb:74:in `kernel_load'
/app/vendor/bundle/ruby/2.6.0/gems/bundler-1.17.3/lib/bundler/cli/exec.rb:28:in `run'
/app/vendor/bundle/ruby/2.6.0/gems/bundler-1.17.3/lib/bundler/cli.rb:463:in `exec'
/app/vendor/bundle/ruby/2.6.0/gems/bundler-1.17.3/lib/bundler/vendor/thor/lib/thor/command.rb:27:in `run'
/app/vendor/bundle/ruby/2.6.0/gems/bundler-1.17.3/lib/bundler/vendor/thor/lib/thor/invocation.rb:126:in `invoke_command'
/app/vendor/bundle/ruby/2.6.0/gems/bundler-1.17.3/lib/bundler/vendor/thor/lib/thor.rb:387:in `dispatch'
/app/vendor/bundle/ruby/2.6.0/gems/bundler-1.17.3/lib/bundler/cli.rb:27:in `dispatch'
/app/vendor/bundle/ruby/2.6.0/gems/bundler-1.17.3/lib/bundler/vendor/thor/lib/thor/base.rb:466:in `start'
/app/vendor/bundle/ruby/2.6.0/gems/bundler-1.17.3/lib/bundler/cli.rb:18:in `start'
/app/vendor/bundle/ruby/2.6.0/gems/bundler-1.17.3/exe/bundle:30:in `block in <top (required)>'
/app/vendor/bundle/ruby/2.6.0/gems/bundler-1.17.3/lib/bundler/friendly_errors.rb:124:in `with_friendly_errors'
/app/vendor/bundle/ruby/2.6.0/gems/bundler-1.17.3/exe/bundle:22:in `<top (required)>'
/app/bin/bundle:104:in `load'
/app/bin/bundle:104:in `<main>'
I've looked around a bit but still cant get it to work. I can see that it has to do with my user_profiles.
My user profiles model:
class UserProfile < ApplicationRecord
belongs_to :user, class_name: 'User', foreign_key: 'user_id'
validates_uniqueness_of :user_id
end
This is my user profile migrate:
class CreateUserProfiles < ActiveRecord::Migration[6.0]
def change
create_table :user_profiles do |t|
t.integer :user_id
t.string :name
t.integer :age
t.string :address
t.string :ptName
t.string :bio
t.timestamps
end
add_foreign_key :user_profiles, :users, column: :user_id
add_index :user_profiles, :user_id, unique: true
end
end
The error is occurring as when i go to view my app through heroku I see this: Application error. So I try and run: heroku run rake db:migrate and the error in the title occurs. I think it might have to do with Pg being more strict with foreign keys. Any suggestions?
From Rails 5 - when we reference a model, index on the foreign_key is automatically created.
Just do it like below -
class CreateUserProfiles < ActiveRecord::Migration[6.0]
def change
create_table :user_profiles do |t|
t.references :user, null: false, foreign_key: true
t.string :name
t.integer :age
t.string :address
t.string :ptName
t.string :bio
t.timestamps
end
end
end
Migration:
class AddUserIdToPhotos < ActiveRecord::Migration
def self.up
add_column :photos, :user_id, :integer
execute 'update photos inner join albums on albums.id = photos.album_id set photos.user_id = albums.user_id'
end
def self.down
remove_column :photos, :user_id
end
end
rake db:migrate, display error:
-- add_column(:photos, :user_id, :integer) -> 0.0010s
-- execute("update photos inner join albums on albums.id = photos.album_id set photos.user_id = albums.user_id") rake aborted!
StandardError: An error has occurred, this and all later migrations
canceled:
SQLite3::SQLException: near "inner": syntax error: update photos inner
join albums on albums.id = photos.album_id set photos.user_id =
albums.user_id/home/borowskiy/projects/galaxy/bdsmgalaxy/db/migrate/20110731191428_add_user_id_to_photos.rb:4:in
`up'
with trace:
SQLite3::SQLException: near "inner": syntax error: update photos inner join albums on albums.id = photos.album_id set photos.user_id = albums.user_id/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:91:in `initialize'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:91:in `new'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:91:in `prepare'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:134:in `execute'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/activerecord-3.2.22/lib/active_record/connection_adapters/sqlite_adapter.rb:278:in `block in execute'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/activerecord-3.2.22/lib/active_record/connection_adapters/abstract_adapter.rb:280:in `block in log'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/activesupport-3.2.22/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/activerecord-3.2.22/lib/active_record/connection_adapters/abstract_adapter.rb:275:in `log'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/rack-mini-profiler-0.9.7/lib/patches/db/activerecord.rb:17:in `log_with_miniprofiler'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/activerecord-3.2.22/lib/active_record/connection_adapters/sqlite_adapter.rb:278:in `execute'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/activerecord-3.2.22/lib/active_record/migration.rb:466:in `block in method_missing'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/activerecord-3.2.22/lib/active_record/migration.rb:438:in `block in say_with_time'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/2.0.0/benchmark.rb:281:in `measure'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/activerecord-3.2.22/lib/active_record/migration.rb:438:in `say_with_time'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/activerecord-3.2.22/lib/active_record/migration.rb:458:in `method_missing'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/activerecord-3.2.22/lib/active_record/migration.rb:334:in `method_missing'
/home/borowskiy/projects/galaxy/bdsmgalaxy/db/migrate/20110731191428_add_user_id_to_photos.rb:4:in `up'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/activerecord-3.2.22/lib/active_record/migration.rb:370:in `up'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/activerecord-3.2.22/lib/active_record/migration.rb:410:in `block (2 levels) in migrate'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/2.0.0/benchmark.rb:281:in `measure'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/activerecord-3.2.22/lib/active_record/migration.rb:410:in `block in migrate'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/activerecord-3.2.22/lib/active_record/connection_adapters/abstract/connection_pool.rb:129:in `with_connection'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/activerecord-3.2.22/lib/active_record/migration.rb:389:in `migrate'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/activerecord-3.2.22/lib/active_record/migration.rb:528:in `migrate'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/activerecord-3.2.22/lib/active_record/migration.rb:720:in `block (2 levels) in migrate'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/activerecord-3.2.22/lib/active_record/migration.rb:775:in `call'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/activerecord-3.2.22/lib/active_record/migration.rb:775:in `block in ddl_transaction'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/activerecord-3.2.22/lib/active_record/connection_adapters/abstract/database_statements.rb:192:in `transaction'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/activerecord-3.2.22/lib/active_record/transactions.rb:208:in `transaction'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/activerecord-3.2.22/lib/active_record/migration.rb:775:in `ddl_transaction'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/activerecord-3.2.22/lib/active_record/migration.rb:719:in `block in migrate'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/activerecord-3.2.22/lib/active_record/migration.rb:700:in `each'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/activerecord-3.2.22/lib/active_record/migration.rb:700:in `migrate'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/activerecord-3.2.22/lib/active_record/migration.rb:570:in `up'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/activerecord-3.2.22/lib/active_record/migration.rb:551:in `migrate'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/activerecord-3.2.22/lib/active_record/railties/databases.rake:193:in `block (2 levels) in <top (required)>'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/rake-10.4.2/lib/rake/task.rb:240:in `call'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/rake-10.4.2/lib/rake/task.rb:240:in `block in execute'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/rake-10.4.2/lib/rake/task.rb:235:in `each'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/rake-10.4.2/lib/rake/task.rb:235:in `execute'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/rake-10.4.2/lib/rake/task.rb:179:in `block in invoke_with_call_chain'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/2.0.0/monitor.rb:211:in `mon_synchronize'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/rake-10.4.2/lib/rake/task.rb:172:in `invoke_with_call_chain'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/rake-10.4.2/lib/rake/task.rb:165:in `invoke'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/rake-10.4.2/lib/rake/application.rb:150:in `invoke_task'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/rake-10.4.2/lib/rake/application.rb:106:in `block (2 levels) in top_level'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/rake-10.4.2/lib/rake/application.rb:106:in `each'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/rake-10.4.2/lib/rake/application.rb:106:in `block in top_level'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/rake-10.4.2/lib/rake/application.rb:115:in `run_with_threads'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/rake-10.4.2/lib/rake/application.rb:100:in `top_level'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/rake-10.4.2/lib/rake/application.rb:78:in `block in run'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/rake-10.4.2/lib/rake/application.rb:176:in `standard_exception_handling'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/rake-10.4.2/lib/rake/application.rb:75:in `run'
/home/borowskiy/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/rake-10.4.2/bin/rake:33:in `<top (required)>'
/home/borowskiy/.rbenv/versions/2.0.0-p247/bin/rake:23:in `load'
/home/borowskiy/.rbenv/versions/2.0.0-p247/bin/rake:23:in `<main>'
Tasks: TOP => db:migrate
You SQL query is wrong. The correct sql update query should be like this
update photos set photos.user_id = albums.user_id from albums where albums.id = photos.album_id
Please change your migration file to this
class AddUserIdToPhotos < ActiveRecord::Migration
def self.up
add_column :photos, :user_id, :integer
execute "update photos set photos.user_id = albums.user_id from albums where albums.id = photos.album_id"
end
def self.down
remove_column :photos, :user_id
end
end
and run it again.
I am using my local environment on Mac OS X with Rails 4.
When trying to run my migration, it is not running.
I receive the following output:
*******-C02MGBVJFD57:myapp *************$ bundle exec rake db:migrate
Your Gemfile lists the gem faker (>= 0) more than once.
You should probably keep only one of them.
While it's not a problem now, it could cause errors if you change the version of just one of them later.
Your Gemfile lists the gem factory_girl_rails (>= 0) more than once.
You should probably keep only one of them.
While it's not a problem now, it could cause errors if you change the version of just one of them later.
== 20140815221246 AddPasswordDigestToUsers: migrating =========================
-- add_column(:users, :password_digest, :string)
rake aborted!
StandardError: An error has occurred, all later migrations canceled:
Mysql2::Error: Duplicate column name 'password_digest': ALTER TABLE `users` ADD `password_digest` varchar(255)/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/connection_adapters/abstract_mysql_adapter.rb:303:in `query'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/connection_adapters/abstract_mysql_adapter.rb:303:in `block in execute'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/connection_adapters/abstract_adapter.rb:373:in `block in log'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activesupport-4.1.4/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/connection_adapters/abstract_adapter.rb:367:in `log'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/connection_adapters/abstract_mysql_adapter.rb:303:in `execute'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/connection_adapters/mysql2_adapter.rb:228:in `execute'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/connection_adapters/abstract/schema_statements.rb:375:in `add_column'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:649:in `block in method_missing'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:621:in `block in say_with_time'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:621:in `say_with_time'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:641:in `method_missing'
/Users/*************/workspace/myapp/db/migrate/20140815221246_add_password_digest_to_users.rb:3:in `change'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:595:in `exec_migration'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:579:in `block (2 levels) in migrate'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:578:in `block in migrate'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:294:in `with_connection'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:577:in `migrate'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:752:in `migrate'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:992:in `block in execute_migration_in_transaction'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:1040:in `ddl_transaction'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:991:in `execute_migration_in_transaction'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:953:in `block in migrate'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:949:in `each'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:949:in `migrate'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:807:in `up'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:785:in `migrate'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/railties/databases.rake:34:in `block (2 levels) in <top (required)>'
ActiveRecord::StatementInvalid: Mysql2::Error: Duplicate column name 'password_digest': ALTER TABLE `users` ADD `password_digest` varchar(255)
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/connection_adapters/abstract_mysql_adapter.rb:303:in `query'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/connection_adapters/abstract_mysql_adapter.rb:303:in `block in execute'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/connection_adapters/abstract_adapter.rb:373:in `block in log'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activesupport-4.1.4/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/connection_adapters/abstract_adapter.rb:367:in `log'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/connection_adapters/abstract_mysql_adapter.rb:303:in `execute'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/connection_adapters/mysql2_adapter.rb:228:in `execute'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/connection_adapters/abstract/schema_statements.rb:375:in `add_column'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:649:in `block in method_missing'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:621:in `block in say_with_time'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:621:in `say_with_time'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:641:in `method_missing'
/Users/*************/workspace/myapp/db/migrate/20140815221246_add_password_digest_to_users.rb:3:in `change'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:595:in `exec_migration'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:579:in `block (2 levels) in migrate'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:578:in `block in migrate'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:294:in `with_connection'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:577:in `migrate'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:752:in `migrate'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:992:in `block in execute_migration_in_transaction'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:1040:in `ddl_transaction'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:991:in `execute_migration_in_transaction'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:953:in `block in migrate'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:949:in `each'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:949:in `migrate'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:807:in `up'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:785:in `migrate'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/railties/databases.rake:34:in `block (2 levels) in <top (required)>'
Mysql2::Error: Duplicate column name 'password_digest'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/connection_adapters/abstract_mysql_adapter.rb:303:in `query'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/connection_adapters/abstract_mysql_adapter.rb:303:in `block in execute'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/connection_adapters/abstract_adapter.rb:373:in `block in log'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activesupport-4.1.4/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/connection_adapters/abstract_adapter.rb:367:in `log'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/connection_adapters/abstract_mysql_adapter.rb:303:in `execute'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/connection_adapters/mysql2_adapter.rb:228:in `execute'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/connection_adapters/abstract/schema_statements.rb:375:in `add_column'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:649:in `block in method_missing'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:621:in `block in say_with_time'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:621:in `say_with_time'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:641:in `method_missing'
/Users/*************/workspace/myapp/db/migrate/20140815221246_add_password_digest_to_users.rb:3:in `change'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:595:in `exec_migration'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:579:in `block (2 levels) in migrate'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:578:in `block in migrate'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:294:in `with_connection'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:577:in `migrate'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:752:in `migrate'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:992:in `block in execute_migration_in_transaction'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:1040:in `ddl_transaction'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:991:in `execute_migration_in_transaction'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:953:in `block in migrate'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:949:in `each'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:949:in `migrate'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:807:in `up'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/migration.rb:785:in `migrate'
/Users/*************/.rvm/gems/ruby-2.1.2#myapp/gems/activerecord-4.1.4/lib/active_record/railties/databases.rake:34:in `block (2 levels) in <top (required)>'
Tasks: TOP => db:migrate
(See full trace by running task with --trace)
Any idea what is wrong?
EDIT:
The schema for the users table below:
create_table "users", force: true do |t|
t.string "name"
t.string "email"
t.datetime "created_at"
t.datetime "updated_at"
t.string "password_digest"
t.string "remember_digest"
end
Users Migration:
class CreateUsers < ActiveRecord::Migration
def change
create_table :users do |t|
t.string :name
t.string :email
t.string :password_digest
t.timestamps
end
end
end
class AddPasswordDigestToUsers < ActiveRecord::Migration
def change
add_column :users, :password_digest, :string
end
end
class AddRememberDigestToUsers < ActiveRecord::Migration
def change
add_column :users, :remember_digest, :string
end
end
The issue is happening because in your CreateUsers migration, you are already creating a users table with the password_digest column as evidenced by this line:
t.string :password_digest
Then, in your AddPasswordDigestToUsers migration, you're trying to add a column with the same name to the users table:
add_column :users, :password_digest, :string
This is where the migration failed with the error Mysql2::Error: Duplicate column name 'password_digest'.
Are you sure you need the AddPasswordDigestToUsers file? It doesn't seem like it because you already added the column in the CreateUsers migration.
I think you can simply delete the AddPasswordDigestToUsers migration file and try re-running bundle exec rake db:migrate.
I guess this is another reason I should be backing up my work with GitHub, but alas, I have not been.
The migration I want to rollback is this:
class AddAssociationToTables < ActiveRecord::Migration
def change
add_column :articles, :user, :belongs_to
end
end
Which obviously isn't well formed because it seems to have totally removed my article table from the database.
I tried rake db:rollback:status and there is nothing 'missing' or anything.
I'm gonna skip copy-pasting the entire trace.
I tried to make a counteracting migration and run that. This is what I wrote:
class RemoveAssociationFromArticle < ActiveRecord::Migration
def change
remove_column :articles, :user, :belongs_to
end
end
But when I tried to run rake db:migrate with this I got what looks like the same error.
EDIT ok here's the whole trace for the rollback first, and then the migrate attempt
== AddAssociationToTables: reverting =========================================
-- remove_column(:articles, :user, :belongs_to)
rake aborted!
An error has occurred, this and all later migrations canceled:
undefined method `to_sym' for nil:NilClass/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/abstract/schema_definitions.rb:215:in `column'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:545:in `block (2 levels) in copy_table'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:538:in `each'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:538:in `block in copy_table'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/abstract/schema_statements.rb:184:in `create_table'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:535:in `copy_table'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:528:in `move_table'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:521:in `block in alter_table'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/abstract/database_statements.rb:200:in `transaction'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:520:in `alter_table'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:463:in `remove_column'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:625:in `block in method_missing'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:597:in `block in say_with_time'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:597:in `say_with_time'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:617:in `method_missing'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:462:in `block in revert'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:461:in `each'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:461:in `revert'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:569:in `exec_migration'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:555:in `block (2 levels) in migrate'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:554:in `block in migrate'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:294:in `with_connection'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:553:in `migrate'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:709:in `migrate'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:959:in `block in execute_migration_in_transaction'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:1005:in `block in ddl_transaction'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/abstract/database_statements.rb:202:in `block in transaction'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/abstract/database_statements.rb:210:in `within_new_transaction'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/abstract/database_statements.rb:202:in `transaction'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/transactions.rb:209:in `transaction'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:1005:in `ddl_transaction'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:958:in `execute_migration_in_transaction'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:920:in `block in migrate'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:916:in `each'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:916:in `migrate'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:771:in `down'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:857:in `move'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:753:in `rollback'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/railties/databases.rake:126:in `block (2 levels) in <top (required)>'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/bin/ruby_executable_hooks:15:in `eval'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/bin/ruby_executable_hooks:15:in `<main>'
Tasks: TOP => db:rollback
(See full trace by running task with --trace)
== RemoveAssociationFromArticle: migrating ===================================
-- remove_column(:articles, :user, :belongs_to)
rake aborted!
An error has occurred, this and all later migrations canceled:
undefined method `to_sym' for nil:NilClass/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/abstract/schema_definitions.rb:215:in `column'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:545:in `block (2 levels) in copy_table'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:538:in `each'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:538:in `block in copy_table'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/abstract/schema_statements.rb:184:in `create_table'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:535:in `copy_table'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:528:in `move_table'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:521:in `block in alter_table'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/abstract/database_statements.rb:200:in `transaction'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:520:in `alter_table'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:463:in `remove_column'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:625:in `block in method_missing'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:597:in `block in say_with_time'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:597:in `say_with_time'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:617:in `method_missing'
/home/macs/code/my_apps/rails_apps/satisfactory/dec1/whatis/db/migrate/20131202144933_remove_association_from_article.rb:3:in `change'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:571:in `exec_migration'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:555:in `block (2 levels) in migrate'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:554:in `block in migrate'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:294:in `with_connection'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:553:in `migrate'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:709:in `migrate'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:959:in `block in execute_migration_in_transaction'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:1005:in `block in ddl_transaction'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/abstract/database_statements.rb:202:in `block in transaction'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/abstract/database_statements.rb:210:in `within_new_transaction'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/connection_adapters/abstract/database_statements.rb:202:in `transaction'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/transactions.rb:209:in `transaction'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:1005:in `ddl_transaction'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:958:in `execute_migration_in_transaction'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:920:in `block in migrate'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:916:in `each'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:916:in `migrate'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:764:in `up'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/migration.rb:742:in `migrate'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/gems/activerecord-4.0.1/lib/active_record/railties/databases.rake:42:in `block (2 levels) in <top (required)>'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/bin/ruby_executable_hooks:15:in `eval'
/home/macs/.rvm/gems/ruby-2.0.0-p247#railstutorial_rails_4_0/bin/ruby_executable_hooks:15:in `<main>'
Tasks: TOP => db:migrate
(See full trace by running task with --trace)
The third parameter should be the type of column.
The correct syntax is:
add_column :articles, :user_id, :integer
The :belongs_to parameter may causing conflict with ActiveRecord methods!
If it did not migrate properly in the first place, don't worry about rolling back. Just fix the migration and try to migrate again.
Your migration should be:
add_column :articles, :user, :references
The belongs_to is for in the model class, and not in the migration. If it gets to a point where you can't do anything, you can always recreate the database to start fresh (and lose all data).
$ rake db:drop db:create db:migrate
Start using version control, and read through all of this slowly and carefully at some point in life http://guides.rubyonrails.org/migrations.html