YourTable.reset_column_information
Rails Migration: Make Database Changes Take Place Before Inserting / Updating Records
Let’s say you have a table to create, and start using it right away, in the same script. If you try to use it right away, it will error out as the table doesn’t exist yet.
class CreateJobLevels type)
end
end
def self.down
drop_table :job_levels
end
end
You need to use: reset_column_information
class CreateJobLevels < ActiveRecord::Migration
def self.up
create_table :job_levels do |t|
t.integer :id
t.string :name
t.timestamps
end
JobLevel.reset_column_information
%w{assistant executive manager director}.each do |type|
JobLevel.create(:name => type)
end
end
def self.down
drop_table :job_levels
end
end