Integer vs. String Issue using Heroku Console

Question

I am getting an error from a recent change I made using heroku console.

After I apply this:

u = User.where(:email => '[email protected]').first
u.invitation_limit = 10
u.save

I get this error:

ActionView::Template::Error (comparison of String with 0 failed):

On this line of code:

<% if current_user.invitation_limit > 0 %>

invitation_limit is an integer field in the database and the number 10 is clearly an integer, but do I need to use to_i, like this?

u.invitation_limit = 10.to_i

Curious if this is a common thing that I am unaware of.

Please let me know if you know anything about this.

Thanks in advance, Brian

Hi Brian! In the db/schema.rb for User, is the invitation_limit set as a string or an integer? — Jesse Wolgamott
– Jesse Wolgamott, Commented Sep 27, 2012 at 2:45

BitOfUniverse · Accepted Answer · 2013-08-05 14:23:07Z

1

Just write the following magic command in console: heroku restart and hit 'Enter'.

works like a charm every time when you getting very very weird errors in your logs.

Nowadays Heroku for me is like a an old version of Windows - any problem? just restart it!

answered Aug 5, 2013 at 14:23

BitOfUniverse

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Brian McDonough Over a year ago

That's too true! If in doubt, restart.

Krista · Accepted Answer · 2012-09-26 20:23:12Z

0

My guess would be that when you pull the data out of the database, rails is returning everything as a string value - are you using JSON format? Cause that would read as string values.

I would use this:

<% if current_user.invitation_limit.to_i > 0 %>

answered Sep 26, 2012 at 20:23

Krista

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Brian McDonough Over a year ago

Thanks for the reply, Krista. That will probably work to resolve the problem, but it doesn't address the root cause, which is something I'd like to know more about. Interestingly, when the integer is set by a method through a before_save on user, the error does not happen. It's only after I used the console that the error occurred.

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