Get all configured repositories

[lcguida]

Hi.

I'm wondering if there's any way to get all repositories configured with DataMapper.

For example, supose I have two repositories configured:

DataMapper.setup(:default, options_hash)
DataMapper.setup(:another, another_options_hash)

I would like to execute the same query across all repositories:

method_to_retrieve_repositories.each do |repository|
    repository { Query }
end

Is there a way to acomplish that ?

[knowtheory]

Yep. DataMapper::Repository.adapters is a hash mapping the symbols for your repositories to their adapters.

So if you want, you could do something like

DataMapper::Repository.adapters.keys.map do |key| 
  DataMapper.repository(key) do
    # execute some queries
  end
end

Give that a shot and see how it does for you

[lcguida]

Yes. It works.

Would be wrong to access the repository directly?

DataMapper::Repository.adapters.each do |repository|
  repository { MyModel.update(:field => true) }
end

[knowtheory]

Sure, why not. My preference broadly speaking is to go through the public API in case things change elsewhere.

Although it'd have to be DataMapper::Repository.adapters.each do |name, adapter|

[lcguida]

Good point on the public API part. I'll keep that way.

Thanks.