In Ruby, creating a new name for an existing value is easy:
a = 1
b = a
b #=> 1
Since Ruby module names are just constants (and classes are just special modules), you can treat them the same way:
class OriginalName
end
NewName = OriginalName
NewName.new #=> #<OriginalName:0x00007ffdb0a59190>
In a Rails application, constants are expected to be defined in a file with a corresponding path and name (otherwise, the auto-loader will have trouble finding it).
For example, the following model
class Nested::OriginalName < ApplicationRecord
end
would conventionally be defined in:
app/models/nested/original_name.rb
The alias, Nested::NewName
, would ideally be defined in:
app/models/nested/new_name.rb
For example:
Nested::NewName = Nested::OriginalName
It's more likely, though, that you would be looking for a shorter alias, without the namespace. As long as you follow the file path and name conventions, you can safely define any alias you want:
# app/models/new_name.rb
NewName = Nested::OriginalName
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