activerecord - Accessing associations in Rails -

Is there any way I can get a list of models that are in a special model rail?

For example:

  class project & lt; ActiveRecord :: Base has_one: Status ... End class works & lt; ActiveRecord :: base has_one: status ... and class status & lt; ActiveRecord :: Base is_to: Project belongs_to: Task # This is where I want to enter an array of association class # names (instead of doing% {project work}} (can be used to check input) # If it remains open to fail, if I add new associations in the future, validates_inclusion_of: status_of ,: in = & gt; ? ... end  

Hope it has some kind of meaning!

This lets you associate the models and other items given on the given model Model.reflections The one describing the objects will give a hash. You want all the values ​​in a hash, which are the reflection :: Association refinance classes. This code should take you to the array that you should get:

  association_names = [] model. Reflections.each {| Key, value | Association_name & lt; & Lt; Key if value.instance_of? (ActiveRecord :: Reflection :: AssociationReflection)}