Ruby optimized inheritance class instances and ruby inheritance instances

Ruby optimized inheritance class instances and ruby inheritance instances

In the Rails principles, there are statements about simplifying the Controller and enriching the Model. The following example shows a simple inheritance optimization. Especially when there is a variable self written in your method.

Suppose we have the following Model:
Copy codeThe Code is as follows:
Class SubjectMatterExpert <User
Include HashCodeCreatorModule
Def make_activation_code
Self. deleted_at = nil
Self. activation_code | = make_hash_code
End
End

Class Administrator <User
Include HashCodeCreatorModule
Def make_activation_code
Self. deleted_at = nil
Self. activation_code | = make_hash_code
End
End

We can use the inherited simplified code as follows: SubjectMatterExpert Administrator

Copy codeThe Code is as follows:
Class SubjectMatterExpert <User
End

Class Administrator <User
End

Class User
Include HashCodeCreatorModule
Def make_activation_code
Self. deleted_at = nil
Self. activation_code | = make_hash_code
End

We can also use this in testing:

Copy codeThe Code is as follows:
It 'should create an activation Code' do
Admin = Factory (: administrator)
Admin. make_activation_code
Admin. activation_code.should_not be_empty
End