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mysqlrubyrubygems
Ketan
Ketan

Reputation: 2032

Ruby gem version compatibility issues

I am trying to use Ruby with MySql and two more gems, composite_primary_keys and ActiveRecord, however, I am seeing version compatibility issues. Following are the details of the system and tools versions:

OS: CentOS 4.9
gcc: 3.4.6

mysql: mysql  Ver 14.7 Distrib 4.1.22, for redhat-linux-gnu (x86_64) using readline 4.3
ruby: ruby 1.9.3p0 (2011-10-30) [x86_64-linux]

Gems versions:

mysql: 2.8.1
composite_primary_keys: 4.1.1
activerecord: 3.1.3

Is there any documentation that shows a version compatibility chart or something for gems?

Upvotes: 0

Views: 510

Answers (2)

the Tin Man
the Tin Man

Reputation: 160601

Gems has the gem dependency command, which shows what a particular gem expects:

gem depend mysql activerecord composite_primary_keys
Gem activerecord-3.1.3
  activemodel (= 3.1.3)
  activesupport (= 3.1.3)
  arel (~> 2.2.1)
  tzinfo (~> 0.3.29)

Gem composite_primary_keys-4.1.1
  activerecord (~> 3.1)

Gem mysql-2.8.1
  hoe (>= 2.3.3, development)
  rake-compiler (~> 0.5, development)

You can use gem dependency by itself to see all dependencies of all gems if you want to wade through the list.

Upvotes: 1

gioele
gioele

Reputation: 10215

There is not such a documentation because the gem themselves declare which versions of the required gems are compatible with them. They may be wrong but so is any kind of documentation, implicit or explicit.

Anyway, which kind of problem do you have? It would be simpler if you report your issue to the gem authors or you post a question here so that other people can help you solve it or work around it.

Upvotes: 0

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