class BazaMigrations::Commands::RemoveColumn
Public Class Methods
new(table_name, column_name)
click to toggle source
# File lib/baza_migrations/commands/remove_column.rb, line 2 def initialize(table_name, column_name) @table_name = table_name @column_name = column_name end
Public Instance Methods
changed_rollback_sql()
click to toggle source
# File lib/baza_migrations/commands/remove_column.rb, line 25 def changed_rollback_sql raise BazaMigrations::Errors::IrreversibleMigration end
sql()
click to toggle source
# File lib/baza_migrations/commands/remove_column.rb, line 7 def sql sqls = [] db_type = db.opts.fetch(:type) if db_type.to_s.include?("sqlite3") sqls << proc do table = db.tables[@table_name] column = table.column(@column_name) column.drop end else sqls << "ALTER TABLE `#{@table_name}` DROP COLUMN `#{@column_name}`" end sqls end