# Output values being converted? **URL:** \ **Category:** Rails\ **Created:** [November 7, 2009, 1:07am UTC](https://www.ruby-forum.com/t/output-values-being-converted/178583 "2009-11-07T01:07:16Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![bouldr-matt](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/85e7bf/32.png) [@bouldr-matt](https://www.ruby-forum.com/u/bouldr-matt)\ **Post date:** [November 7, 2009, 1:07am UTC](https://www.ruby-forum.com/t/output-values-being-converted/178583/1 "2009-11-07T01:07:16Z")
Hi all, I’ve got a c++ program that inserts data into a mysql database, its a 32 length varchar column in question that contains sha256 hashes such as 018cf0b47256973ab6f08a720208c28c34d85722 Unfortunately, when I come to read this in rails and print out the hash in a view, it prints out a short integer like 847. I’ve tried it in irb, I can see the hash correctly as the return value of a .find, but it still comes out wrong when I print it directly: =\> @hash = FileHash.find(:first) > > #\ > > =\> @hash.size > > > 1393 > > =\> @hash.hash > > > 847 I can’t think what would be causing this, I’ve never come across anything quite like this before. I’m not using any unusual encodings or anything, at least, I’m using the same a I always have without problems. Hope someone can shed light on this. Thanks Matt ---
**Author:** ![bouldr-matt](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/85e7bf/32.png) [@bouldr-matt](https://www.ruby-forum.com/u/bouldr-matt)\ **Post date:** [November 7, 2009, 1:23am UTC](https://www.ruby-forum.com/t/output-values-being-converted/178583/2 "2009-11-07T01:23:04Z")
On Sat, Nov 07, 2009 at 12:06:07AM +0000, Matt H. wrote: > I can’t think what would be causing this, I’ve never come across anything > quite like this before. I’m not using any unusual encodings or anything, at > least, I’m using the same a I always have without problems. > > Hope someone can shed light on this. > > Thanks > > Matt Well to answer my own question yet again: It turns out that hash is a method defined by activerecord already. I originally had problems naming my model Hash so I changed it to FileHash. I didn’t realise that hash was a method as well as a class. Changing the column name in the db, rails and the c++ app has fixed the problem 🙂 Matt ---
**Author:** ![bouldr-matt](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/85e7bf/32.png) [@bouldr-matt](https://www.ruby-forum.com/u/bouldr-matt)\ **Post date:** [November 7, 2009, 3:53am UTC](https://www.ruby-forum.com/t/output-values-being-converted/178583/3 "2009-11-07T03:53:27Z")
On Nov 6, 2009, at 7:21 PM, Matt H. wrote: > > Unfortunately, when I come to read this in rails and print out the > > =\> @hash.size > > Hope someone can shed light on this. > > didn’t realise that hash was a method as well as a class. > > Changing the column name in the db, rails and the c++ app has fixed > the > problem 🙂 > > Matt You could have also accessed the original column as: @hash[‘hash’] which forces the name ‘hash’ to be treated as an attribute name of the model. FYI, you also run into the same kind of problem with other names that conflict with exiting methods. -Rob Rob B. [http://agileconsultingllc.com](http://agileconsultingllc.com) removed\_email\_address@domain.invalid ---
**Author:** ![bouldr-matt](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/85e7bf/32.png) [@bouldr-matt](https://www.ruby-forum.com/u/bouldr-matt)\ **Post date:** [November 7, 2009, 11:17am UTC](https://www.ruby-forum.com/t/output-values-being-converted/178583/4 "2009-11-07T11:17:36Z")
On Nov 7, 12:21 am, Matt H. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > On Sat, Nov 07, 2009 at 12:06:07AM +0000, Matt H. wrote: > > It turns out that hash is a method defined by activerecord already. I > originally had problems naming my model Hash so I changed it to FileHash. I > didn’t realise that hash was a method as well as a class. > > Changing the column name in the db, rails and the c++ app has fixed the > problem 🙂 All objects in ruby have a hash method for which the following statement should hold a.hash != b.hash =\> a!=b Among other things it is used when you use something as a key in a Hash. Fred