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20,594 Points'drop table' not migrating when I run 'rake db:migrate' (6:30)
My migration file looks identical to Hampton's and yet when I run 'rake db:migrate' the 'drop_table(:customers)' and 'drop_table(:employees)' aren't migrating. Any idea why?
Also, as you'll see below, when I run 'Account.count' from the Rails console I get '0' whereas Hampton gets '2' (???).
Here's my code from Sublime:
class RemoveOldTables < ActiveRecord::Migration
def up
Customer.all.each do |c|
Account.create(name: c.name, about: c.about)
end
Employee.all.each do |e|
Account.create(name: e.name, email: e.email)
end
drop_table :customers
drop_table :employees
end
def down
end
end
And here's my output in Terminal:
biller [master] :> rake db:migrate
== 20151130193508 RemoveOldTables: migrating ==================================
== 20151130193508 RemoveOldTables: migrated (0.0000s) =========================
biller [master] :> rails console
Loading development environment (Rails 4.2.2)
cannot load such file -- awesome_print
2.2.1 :001 > Account.count
(0.2ms) SELECT COUNT(*) FROM `accounts`
=> 0
1 Answer
Nelly Nelly
7,134 PointsI had the same problem... and fount a solution :)
Maybe it could help people who would have the same issue: in rails c
ActiveRecord::Migration.drop_table(:employees)
ActiveRecord::Migration.drop_table(:customers)
And then create by hand new Accounts
Accounts.create( name: "John", email: "john@doe.com")
And then you can update like Hampton explains:
a = Account.first
Account Load (0.4ms) SELECT `accounts`.* FROM `accounts` WHERE `accounts`.`id` = 1 LIMIT 1
=> #<Account id: 1, type: nil, name: "Mark", email: "mark@mark.com", about: nil, created_at: "2016-07-29 21:54:26", updated_at: "2016-07-29 21:54:26">
a.type = "Employee"
=> "Employee"
a.save
(0.2ms) BEGIN
SQL (0.4ms) UPDATE `accounts` SET `type` = 'Employee', `updated_at` = '2016-07-29 21:56:14' WHERE `accounts`.`id` = 1
(2.0ms) COMMIT
=> true