I'm trying to save a number representing the length of a file (4825733517). The column is set to type integer. I don't have any validations or restrictions set.
RangeError: 4825733517 is out of range for ActiveRecord::ConnectionAdapters::PostgreSQL::OID::Integer with limit 4
Should I be using some other column type for this value? (on rails 4.2.4)
For columns of type integer, the :limit value is the maximum column length in bytes (documentation).
With 4 byte length, the largest signed integer you can store is 2,147,483,647, way smaller than your value of 4,825,733,517. You can increase the byte limit, for example to 8 bytes to be a long integer (a bigint PostgreSQL type), this will allow you to store signed values up to 9,223,372,036,854,775,807.
You can do this with a migration create it with something like rails generate migration change_integer_limit_in_your_table, and the following code:
class ChangeIntegerLimitInYourTable < ActiveRecord::Migration
def change
change_column :your_table, :your_column, :integer, limit: 8
end
end
change_column instead of update_column. I'm using Rails 4.2.6 so maybe "update_column" is deprecated.
update_column is simply incorrect, I might've got a wrong cue from the other answers when first writing this. Edited the post, thanks for pointing it outAccording to the PostgreSQL documentation an integer have a range from -2147483648 to +2147483647. So your number is to big for this type.
Update your column and use the parameter limit to indicate that you want to have a bigint.
change_column :table, :column, :integer, limit: 8
You should change the length of the column in your database with a migration :
update_column :my_table, :my_column, :integer, limit: 12
It will allow you to store bigger integers.
